Relevant bibliographies by topics / Bond strength

Academic literature on the topic 'Bond strength'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 March 2023

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Journal articles on the topic "Bond strength"

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P. Nandurkar, B., and Dr A. M. Pande. "Critical studies on bond strengths of masonry units." International Journal of Engineering & Technology 7, no. 4 (September 17, 2018): 2250. http://dx.doi.org/10.14419/ijet.v7i4.15308.

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Performance of masonry is normally attributed to compressive strength of individual units, water absorption of individual units, strength of masonry mortar and the bond between mortar and individual units. Many researches in the past have contributed towards the bond strength and relevance of compressive strength of mortar in achieving good bonds. However, the quality of bricks available in India significantly vary from region the region. Thus, a need is felt in understanding bond strength of masonry. In this paper three types of mortars(total nine combinations), two types of bricks (red clay brick and fly ash brick) are considered, tests such as compressive strength, water absorption of the bricks, compressive strength of various mortar combinations, flexure bond strength and shear bond strength are presented. Failure patterns of the masonry units are also discussed. Results of the two tests show noticeable variation in bond strengths, however the shear bond strength has significant relationship with the compressive strength of mortar. The research outcome also points towards using bricks in saturated condition for achieving adequate performance.
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Müller, M., P. Hrabě, R. Chotěborský, and D. Herák. "Evaluation of factors influencing adhesive bond strength." Research in Agricultural Engineering 52, No. 1 (February 7, 2012): 30–37. http://dx.doi.org/10.17221/4877-rae.

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In the last ten years periods the bonding technology noted a great boom not only in manufacturing industry but in repairing industry, too. The expansion of chemical industry is the cause of this boom. In this way the use of bonding technology in industrial applications brings considerable cost savings. For the successful use of adhesives the knowledge of used adhesives and of further affecting factors is important. Respecting of this know-how is the presumption of the bonded joint successful design. The breaking of the technological procedure and the incorrect design are very often reasons of wrong joints. The paper contains theoretical in formation about the bonded joints creation and some results of laboratory tests inquiring into the reasons which affect the bonded joint strength. For tests the two-component epoxy adhesives were used.
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Murdza, Andrii, Arttu Polojärvi, Erland M. Schulson, and Carl E. Renshaw. "The flexural strength of bonded ice." Cryosphere 15, no. 6 (June 28, 2021): 2957–67. http://dx.doi.org/10.5194/tc-15-2957-2021.

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Abstract. The flexural strength of ice surfaces bonded by freezing, termed freeze bond, was studied by performing four-point bending tests of bonded freshwater S2 columnar-grained ice samples in the laboratory. The samples were prepared by milling the surfaces of two ice pieces, wetting two of the surfaces with water of varying salinity, bringing these surfaces together, and then letting them freeze under a compressive stress of about 4 kPa. The salinity of the water used for wetting the surfaces to generate the bond varied from 0 to 35 ppt (parts per thousand). Freezing occurred in air under temperatures varying from −25 to −3 ∘C over periods that varied from 0.5 to ∼ 100 h. Results show that an increase in bond salinity or temperature leads to a decrease in bond strength. The trend for the bond strength as a function of salinity is similar to that presented in Timco and O'Brien (1994) for saline ice. No freezing occurs at −3 ∘C once the salinity of the water used to generate the bond exceeds ∼ 25 ppt. The strength of the saline ice bonds levels off (i.e., saturates) within 6–12 h of freezing; bonds formed from freshwater reach strengths that are comparable or higher than that of the parent material in less than 0.5 h.
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Scherf, Richard R. "Dentin Bond Strength." Journal of the American Dental Association 139, no. 2 (February 2008): 129. http://dx.doi.org/10.14219/jada.archive.2008.0117.

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Anderson, G. P., and K. L. Devries. "Predicting Bond Strength." Journal of Adhesion 23, no. 4 (December 1987): 289–302. http://dx.doi.org/10.1080/00218468708075411.

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Cardoso, Gabriela Cardoso de, Leina Nakanishi, Cristina Pereira Isolan, Patrícia dos Santos Jardim, and Rafael Ratto de Moraes. "Bond Stability of Universal Adhesives Applied To Dentin Using Etch-And-Rinse or Self-Etch Strategies." Brazilian Dental Journal 30, no. 5 (October 2019): 467–75. http://dx.doi.org/10.1590/0103-6440201902578.

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Abstract This study evaluated the immediate and 6-month dentin bond strength of universal adhesives used in etch-and-rinse or self-etch bonding strategies. The adhesives tested were Ambar Universal, G-Bond, Single Bond Universal, Tetric N-Bond Universal, and Ybond Universal. Gold standard adhesives (Scotchbond Multipurpose Plus and Clearfil SE Bond) were controls. Microtensile dentin bond strength (n=5 teeth), pH, and C=C conversion (n=3) were evaluated. Data were analyzed at α=0.05. All adhesives showed differences in pH. Ybond had intermediately strong aggressiveness, whereas the others were ultra-mild. The C=C conversion was different in most adhesives. In the etch-and-rinse strategy, all adhesives showed similar results generally except for G-Bond, which had lower bond strength than most adhesives. G-Bond and Tetric-N-Bond showed lower bond strengths after 6 months compared with 24 h, whereas the other adhesives had stable dentin bonds. In the self-etch strategy, G-Bond had lower bond strength than most adhesives. After 6 months, Ambar was the only adhesive showing lower dentin bond strength compared with 24 h. Most adhesives had discreet drops in bond strength during aging when used in the self-etch strategy. The failure modes were also material dependent, with a general pattern of increased adhesive and/or pre-testing failures after storage. In conclusion, the bonding performance of universal adhesives to dentin is material dependent. Most adhesives had stable dentin bonds with results comparable to the gold standard materials, particularly when applied in the self-etch mode. In general, it seems the use of universal adhesives in dentin should not be preceded by phosphoric acid etching.
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Valente, Marco. "Bond Strength between Corroded Steel Rebar and Concrete." International Journal of Engineering and Technology 4, no. 5 (2012): 653–56. http://dx.doi.org/10.7763/ijet.2012.v4.454.

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De-Paula, Diego Martins, Alessandro D. Loguercio, Alessandra Reis, Natasha Marques Frota, Radamés Melo, Kumiko Yoshihara, and Victor Pinheiro Feitosa. "Micro-Raman Vibrational Identification of 10-MDP Bond to Zirconia and Shear Bond Strength Analysis." BioMed Research International 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/8756396.

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So far, there is no report regarding the micro-Raman vibrational fingerprint of the bonds between 10-methacryloyloxy-decyl dihydrogen phosphate (10-MDP) and zirconia ceramics. Thus, the aim of this study was to identify the Raman vibrational peaks related to the bonds of 10-MDP with zirconia, as well as the influence on microshear bond strength. Micro-Raman spectroscopy was employed to assess the vibrational peak of 10-MDP binding to zirconia. Microshear bond strength of the dual-cure resin cement to zirconia with the presence of 10-MDP in composition of experimental ceramic primer and self-adhesive resin cement was also surveyed. Statistical analysis was performed by one-way ANOVA and Tukey’s test (p<0.05). Peaks at 1545 cm−1 and 1562 cm−1 were found to refer to zirconia binding with 10-MDP. The presence of 10-MDP in both experimental ceramic primer and self-adhesive resin cement improved microshear bond strength to zirconia ceramic. It can be concluded that the nondestructive method of micro-Raman spectroscopy was able to characterize chemical bonds of 10-MDP with zirconia, which improves the bond strengths of resin cement.
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Mazumdar, Paromita, Soumya Singh, and Debojyoti Das. "Method for Assessing the Bond Strength of Dental Restorative Materials — An Overview." Journal of Pierre Fauchard Academy (India Section) 35, no. 2 (October 14, 2021): 73. http://dx.doi.org/10.18311/jpfa/2021/27758.

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<p>Bond strengths achieved while testing in laboratories are the key for selection of adhesive systems. Longevity of a restorations can be predicted to some extent based on bond strength of adhesives. There have been several discrepancies within the reported bond strengths of various materials. Bond strength of the adhesive system is affected by a large number of factors, which makes the comparison among studies difficult. Throughout the years, laboratory evaluations have been the basis for clinicians to choose the adhesive systems in their daily practice. However the validity of bond strength tests to predict clinical performance of dental adhesives is yet to be justified. The realization of an adequate and valid method for assessing bond strength is a difficult endeavor. Different types of test have been utilized to assess the strength of a bond, which has its own advantages and disadvantages. Bonding strength is the strength required to rupture a bond formed by an adhesive system and the adherent. Often, the test involves the measurement of the shear and flexural bond strength of the adhesive system. This review focuses on aspects associated to various bond strength test methods used to test the adhesion between tooth and the restorative materials and their mechanics.</p>
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Shenbagavalli, S., and Ramesh Babu Chokkalingam. "Flexural Strength of Fly ash Brick Masonry Wall with four different bond." Journal of Physics: Conference Series 2070, no. 1 (November 1, 2021): 012190. http://dx.doi.org/10.1088/1742-6596/2070/1/012190.

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Abstract The strength of the masonry mainly depends on type of bond, types of bricks, compressive strength of the bricks and mortar used. The types of bonds play a major role in the properties of brick masonry wall. The most common types of bond used in practice are English bond, Flemish bond, Stretcher bond and Header bond. A lot of study has been performed on the load-carrying capacity of masonry walls. In this paper, effort has been taken to study the influence of different bonds on the flexural strength of the flyash brick masonry wall. For this wall of size 1m × 0.76m × 0.22m has been casted, cured for 28 days and tested in a loading frame. From the results, it was found the English bond gave higher flexural strength compared to other bonds such as Flemish, Stretcher and Header bond. The flexural strength of English bond was around 45 to 50% higher than the other bonds. The crack pattern at failure was also noted for all the masonry walls.
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Dissertations / Theses on the topic "Bond strength"

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Reutter, Oliver. "Assessment of masonary flexural bond strength." Thesis, Kingston University, 2007. http://eprints.kingston.ac.uk/20328/.

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This thesis presents the results of an experimental assessment of masonry flexural bond strength. Since there is insufficient experimental data on key performance requirements for bond between units and mortar, investigations into the development of bond and flexural strength across a range of masonry units for both traditional and new mortar types, reflecting the recent changes in European standards, were conducted. In order to demonstrate the performance of bond between unit and mortar, the latter ranging from weak to strong, a practical bond wrench testing rig was developed for use with couplets and stack bonded prisms. This involved carrying out investigations into existing designs and revaluations using up to date modelling techniques. The result is a new bond wrench applicable for use in laboratories and on site.
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Amiri, Soroush. "Bond strength and shear strength of fiber-reinforced self-consolidating concrete." Mémoire, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/10190.

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Le béton auto-plaçant renforcé de fibres (BAPF) est l’un des récents développements dans le monde de la technologie du béton combinant les performances de l’auto-consolidation avec la ductilité post-pic et les nombreux avantages face à la fissuration grâce à la présence des fibres dans le béton. L’utilisation de BAPF accroît l’efficacité économique globale de la phase de construction en réduisant la main d’oeuvre, ou la consommation d’énergie requise, en accélérant la vitesse de construction, la réduction ou l’élimination de ferraillage conventionnel et à la simplification des détails et placement du ferraillage. Le BAPF a gagné en popularité dans ses utilisations durant les dernières années telles dans les tabliers de ponts, les poutrelles et les poutres. En dépit de preuve d’amélioration de synergie entre la technologie d’auto-placement et l’ajout de fibres dans le BAPF, il est obligatoire de déterminer les propriétés convenables de ce matériau pour trouver les caractéristiques inappropriées dans le béton à l’état frais et durci. A cet égard, les défauts, tels l’agglomération de fibres, la ségrégation et la performance d’écoulement et le placement incorrects à cause de propriétés rhéologiques inappropriées à l’état frais, entraînent une réduction dans la résistance évaluée. L’objectif principal de cette étude est d’évaluer les propriétés du béton auto-plaçant (BAP), des mélanges intégrant différentes teneurs en granulats et du BAPF (avec insertion de différents types et teneurs de fibres). Ceci peut aider au développement de BAPF avec une rhéologie adaptée et une performance mécanique adéquate incluant une résistance d’adhésion et de cisaillement convenable pour des applications structurelles. Dans le but d’évaluer l’effet des fibres sur les propriétés rhéologiques de BAP à l’état frais, des mélanges intégrant quatre types de fibres avec différents élancement (L/D) seront étudiés. Ces fibres incluent des crochets d’acier (STH 55/30), du fil d’acier tréfilé (STN 65/13), de la macro-fibre synthétique de propylène (PP 56/38) et de l’alcool polyvinylique (PVA 60/12) avec différentes teneurs volumiques (0.25%, 0.5%) ajoutées au BPA de référence. Tous les mélanges ont un rapport w/b fixé à 0,42 et la teneur en granulats grossiers est respectivement de 29, 32 et 35% par volume de béton. Les caractéristiques de béton frais ont été évaluées en considérant l’affaissement, l'évaluation du temps d’écoulement (V-funnel), l'amplitude à l'écoulement du BAP (J-Ring), le tassement de surface et le rhéomètre ConTec. Les propriétés du béton durci, en particulier la résistance à la compression, la résistance à la traction par fendage, la résistance à la flexion, et le module élastique ont été évaluées. L’effet des types de fibres, des teneurs en fibres et en granulats sur la résistance à la rupture et la robustesse du BAP au cisaillement des mélanges optimisés, incluant le BAP de référence, le SCCAGG (32% and 35%), le FRSCC ST-H (0.25% and 0.5%), le FRSCCPP (0.25% and 0.5%), le PVA (0.25% and 0.5%) et le ST-N (0.25% and 0.5%) ont été testés en utilisant l’essai de cisaillement direct pour évaluer la résistance en cisaillement et la résistance résiduelle du béton. Les résultats des essais prennent en considération la capacité portante en cisaillement de l’élément structurel fabriqué à partir de BAPF. Les résultats des essais montrent que l’ajout de fibres était beaucoup plus efficace que l’accroissement de la teneur en agrégats sur la résistance au cisaillement du BAP. L’amélioration de la contrainte au cisaillement à la rupture comparée au mélange de référence est plus grande avec 16.3% pour l’ajout de fibre de type STN 0.5%, 15.8% pour l’ajout de fibre de type STH 0.5%, 14.92% pour l’ajout de fibre de type PP 0.5% et 7.73% pour l’ajout de fibre de type PVA 0.5%. De plus, l’ajout de fibres améliore le comportement post-pic en cisaillement du BPA en comparaison à l’augmentation de la teneur en granulats. L’augmentation de la teneur en fibres de 0.25% à 0.5%, par volume de béton, a amélioré la résistance et la ténacité au cisaillement, le comportement en flexion peu importe le type de fibres. Cette amélioration a été la plus élevée dans le cas du STH 0.5% et la plus basse pour des valeurs de PVA0.5%. La réponse de la résistance à l’adhésion des barres d’armatures localisées à différentes hauteurs de l’élément de mur (effet top-bar) a été étudiée pour des mélanges optimisés; le BPA de référence, les mélanges ST-H 0.5, et PP 0.5 ont été testés à travers l’essai d’arrachement direct des barres coulées dans le large élément de mur. Utilisation de fibres de propylène et de fibres à crochets d’acier au BPA a légèrement augmenté le facteur de modification à l’adhérence (effet top-bar) de 1 dans le cas du BPA jusque 1,1 et 1,2 pour les fibres de propylène et de crochets d’acier respectivement. Les éléments de mur fabriqués à partir du mélange de BPA de référence a montré la distribution de résistance la plus uniforme avec moins de 5% de réduction de sa résistance à l’adhérence sur la hauteur. Ces pertes de résistance à l’adhérence pour les éléments de mur coulés avec du BPA intégrant les de fibres de propylène et de fibres à crochets d’acier sont respectivement de 10% et 20%.
Abstract : Fiber reinforced self-consolidating concrete (FR-SCC) is one of the recent developments in the world of concrete technology which combines the self-consolidating performance with the post-peak ductility and multiple cracking advantages due to presence of fiber reinforcement in concrete. The use of FR-SCC increases the overall economic efficiency of the construction process by reducing the workforce, or energy consumption required, increasing speed of construction, reduction or elimination of the conventional reinforcement and to the simplification of reinforcement detailing and placement. The FR-SCC has gained increasing popularity applications in the last few years such as bridge decks, girders and beams. Despite the improvement evidence of synergy between self-consolidating technology and fiber addition in the FR-SCC, finding adequate properties of this material is mandatory to find any improper characteristics in the fresh and hardened states. In this regards, defects, such as fiber clustering, segregation and improper flow performance and placement due to improper rheological properties in the fresh state, which leads to reduction in strength, are evaluated. The main objective of this study is to evaluate some rheological and mechanical properties of self-consolidating concrete (SCC) mixtures with different aggregate contents and FR-SCC (incorporating different fiber types and contents). This can help to develop of FR-SCC with adapted rheology and proper mechanical performance including bond strength and shear strength for structural application. In order to evaluate the effect of fibers on rheological properties of SCC in the fresh state, mixtures incorporating four types of fibers with different aspect ratio (L/D) were investigated. The fibers included steel hooked (STH 55/30), steel drawn wire needles (STN 65/13), synthetic macro-fiber propylene (PP 56/38) and polyvinyl alcohol (PVA 60/12) with variety of volume content (0.25%, 0.5%) added to the SCC reference. All mixtures has a fixed w/b ratio of 0.42 and different coarse aggregate contents of 29, 32 and 35%, by volume of concrete. The fresh concrete characteristics were evaluated by considering the slump flow, V-funnel, J-Ring, surface settlement and ConTec rheometer. The hardened properties, mainly compressive strength, splitting tensile strength, flexural strength, flexural toughness, and modulus of elasticity were evaluated. The effect of fiber type, fiber content, and coarse aggregate content on ultimate shear load and shear toughness of the optimized mixtures. The mixtures including SCC reference, SCC with aggregate volume of 32% and 35% (SCCAGG 32% and SCCAGG 35%), SCC incorporating ST-H fibers with the dosages of 0.25% and 0.5% (FRSCC ST-H 0.25% and FRSCC ST-H 0.5%), SCC incorporating PP fibers with the dosages of 0.25% and 0.5% (FRSCC PP 0.25% and FRSCC PP 0.5%), SCC incorporating PVA fibers with the dosages of 0.25% and 0.5% (FRSCC PVA 0.25% and FRSCC PVA 0.5%) and SCC incorporating ST-N fibers with the dosages of 0.25% and 0.5% (FRSCC ST-N 0.25% and FRSCC ST-N 0.5%) were tested using the direct shear push-off test to evaluate shear strength and residual shear strength of the concrete. These test results could be used in the shear load carrying capacity of the structural element made by FRSCC. The test results show that adding fiber was much more effective than increasing aggregate content on the shear strength behaviour of SCC. The ultimate shear stress improvement of the mixtures incorporating fiber compared to the SCC reference mixture were 16.3% for STN 0.5%, 15.8% for STH 0.5%, 14.92% for PP 0.5%, and 7.73% for PVA 0.5% mixture. Moreover, adding fibers improved the post-peak shear behaviour of SCC compared to addition of aggregate content. Increasing the fiber content from 0.25% to 0.5%, by volume of concrete, improved shear strength, shear toughness and flexural toughness behaviour regardless of the fiber types. This enhancement was highest in the case of STH 0.5% and lowest values for PVA0.5%. The bond strength response of rebars located at different heights of the wall element (top-bar effect) investigated for optimized mixtures, including SCC reference, ST-H 0.5, and PP 0.5 mixtures was tested through direct pull-out test of rebars cast in the large wall elements. Adding propylene and steel hooked fibers to SCC is found to slightly increase the bond modification factor (top-bar effect) from 1 in the case of SCC up to 1.1 and 1.2 for propylene and steel hooked fibers, respectively. The wall elements made with SCC reference mixture showed the most uniform bond strength distribution and had less than 5% reduction of bond strength along the height. These bond strength losses for wall element cast with SCC incorporating 0.5 % of steel hooked fiber and that of propylen fiber with the same volume are 10% and 20%, respectively.
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Yan, Yuan. "Investigation into bond strength between EDCC/masonry." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/58185.

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In order to apply Sprayable Eco-Friendly Ductile Cementitious Composites (EDCC) as a thin overlay material for masonry building upgrade, this study aims at understanding one of the key issues of repair: bond strength between old structure and the new repair overlay. Several influencing factors on bond strength were investigated, including repair thickness, fiber addition, substrate properties, curing age and environment. Bond strength was measured by tensile pull-off and friction-transfer tests. At the conclusion of the research, EDCC was able to achieve satisfactory bond strength provided sufficient penetrability into the substrate, even under field conditions and without curing. Fibers added into EDCC impact bond strength negatively, if they are oriented parallel to the interface as a result of manual casting or if there is a low fractal dimension of the substrate surface. Further, 56 days can be used as the maturity age of bond strength with EDCC overlay. In future applications, penetrability of EDCC overlays can be ensured through sufficient amount of superplasticizer or energy of casting. For example, EDCC with 150mm slump was able to satisfy standard bond strength requirement of concrete in the field, at the age of 45 days. Penetrability of EDCC overlay is of vital importance, since EDCC with low workability (0 slump) can’t achieve requirement of structural repair even under standard curing. To mitigate the negative effect of fiber addition on bond strength, higher substrate roughness and 3D fiber orientation can be of help, through proper surface roughness preparation and the use of spray methods (e.g., shotcrete) instead of hand application. For further study, it is suggested that measures should be taken to obtain more pure bond strength values for simplification of analysis. Also surface roughness variation and long term properties of interface are worth investigation, once proper substrates are chosen for lab research.
Applied Science, Faculty of
Civil Engineering, Department of
Graduate
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Sarhosis, Vasilis. "Computational modelling of low bond strength masonry." Thesis, University of Leeds, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.550342.

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The development of a computational model for low bond strength brick masonry is described. Cracking and failure in such masonry occurs typically at the interface between the masonry units and the mortar joints. As a result software based on a 2- dimensional discrete element analysis (UDEC) was used. One feature of the research was the method used to identify the material parameters for the constitutive model. The conventional method of obtaining material parameters from the results of testing small samples of masonry was thought to be problematic. Instead, the material parameters were obtained from the results of tests carried out in the laboratory on single leaf wall panels, each containing a large opening. Each panel was subjected to a gradually increasing vertical in-plane static point load until it collapsed. The wall panel tests were also modelled using UDEC. An optimization procedure was then used to tune the parameters used initially in UDEC in order to better simulate the pre- and post-cracking behaviour and the behaviour close to collapse of the panels tested in the laboratory. Having obtained the material parameters for UDEC, the model was then validated by comparing the UDEC-predicted behaviour of wall panels different to those used to determine the material parameters, with those tested in the laboratory. Some of the panels used for the validation process were reinforced with bed joint reinforcement, others were unreinforced but were of deeper and longer span construction. Good correlation was obtained between the results from the computational model and those obtained from tests in the laboratory.
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Stanish, Kyle David. "Corrosion effects on bond strength in reinforced concrete." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq29397.pdf.

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Zhang, Xiaobo. "Influence of drying pressure on interfibre bond strength." Thesis, KTH, Hållfasthetslära (Inst.), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-103891.

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In this thesis the influence of the drying pressure on interfibre bond strength was investigated. Five different drying pressures, 0.7, 2.9, 4.5, 6.7, and 15 kPa, were applied during the preparation of fiber-fiber cross test pieces. The nominal overlap area of each fibre-fibre cross was measured in a transmission light microscope. A tensile tester was used to record the loaddeformation behavior of each fiber-fiber cross. The final results of the interfibre bond strength were defined by both the overlap area and the maximum force of each bond. The results showed that the influence of drying pressure to the average strength were very weak, although a maximum could be seen at 2.9 kPa of drying pressure. Moreover, the results suggested the overall trend of decreasing strengths at very high drying pressures. Finally, a statistical significance study of the results was presented. In addition, the influences of fiber type (spring wood vs. summer wood) and press type (steel vs. steel or steel vs. rubber) on interfibre bond strength were also discussed.
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Seaton, Alexander Miles. "Bond strength performance characteristics of brick-mortar interfaces." Thesis, Sheffield Hallam University, 2004. http://shura.shu.ac.uk/20339/.

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This work uses a direct tensile test approach, developed in-house, to measure the bond strength of brick-mortar interfaces. The thesis postulates that direct tensile bond strength values can be used as a means of assessing compatibility of brick and mortar properties which directly influence the structural and durability performance of brickwork. The work identifies that direct forms of tensile testing are suited for comparative research more readily than flexural testing techniques, which induce inherent variability to the test system due to sample format and by application of the associated flexural bending theory. It is maintained that flexural bending tests reflect parameters which influence disproportionately the compressive strength of the mortar and the joint periphery. The work uses traditional volume ratios for mortars, proportioned to a constant mass of sand, to identify the effect that discrete changes in cement and lime content have upon bond strength performance of the mortar. The results show that cement content of mortar has no significant influence on bond strength, provided that the combined proportion of cement and lime maintain a 1:3 ratio by volume with the sand. Furthermore, it has been shown that the volume of the mix water should match the volume of cementitious material, in order to achieve suitable workability. The work produces a bond strength development curve for samples aged between 5-minutes and 2-years of age and concludes that bond strength does not develop in the same manner to compressive strength and that bond strength may decline post 28-days. Samples up to 2-years in age can demonstrate up to 40-percent loss of bond due to the effects of sustained drying shrinkage. Consequently the work questions the value of using 28-day strength tests as a means of predicting future bond strength performance. It is identified that the controlling parameter which effects bond strength development is the removal of the excess mix water from the mortar by brick suction forces. The work examines unit water absorption characteristics and identifies that the initial rate of suction test is not sufficiently representative of a unit's ability to remove water from a retentive mortar bed. In response a unique method, which measures the continuous water uptake of the brick bed-face is presented. The resulting water absorption profile identifies the rate of change of flow and the resulting force function, with which water is potentially extracted from the retentive mortar bed. Results show that a good correlation between a unit's suction force and bond strength can be attained. It is presented that initial bond strength is developed by volumetric plastic shrinkage of the mortar bed, induced by rapid removal of the excess mix water by brick background suction, which generates a mechanical lateral gripping action to the undulations of the brick bed-face.
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Wheat, Maurice. "Evalu[t]ation of bond strength at asphalt interfaces." Manhattan, Kan. : Kansas State University, 2007. http://hdl.handle.net/2097/511.

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Zhou, Zhaoxia. "Development of bond strength in hydraulic lime mortared brickwork." Thesis, University of Bath, 2012. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.550613.

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The first recorded use of hydraulic lime in construction can be traced back to at least two thousand years ago. Hydraulic lime, produced through either adding pozzolanic materials or calcining clay containing limestone, unlike air lime, can set and harden under water, developing strength through initial hydration reaction and subsequent carbonation. After WWII Portland cement mortars had almost completely replaced lime based mortars in modern construction. However, through conservation and specialist construction the benefits of hydraulic lime are becoming increasingly recognised. To support wider usage of these mortars there is a need for systematic study on the mortar properties and structural performance of lime mortared masonry. This thesis presents findings from a research programme conducted to develop understanding of the mechanical properties of natural hydraulic lime (NHL) mortared brickwork. The work focussed on the flexural strength of NHL mortared brickwork. A variety of material and environmental factors, including lime grade and supplier, mix proportion, sand type and age, have been investigated. In addition the research has completed an in-depth study on the influence of brick absorption characteristics on bond development. The two methods of flexural wall panel and bond wrench testing to establish flexural strength have been compared. In addition to flexural strength, initial shear strength and compressive strength of brickwork has also been investigated. A greater understanding of NHL mortared brickwork performance has been developed through this work. Performance of the brickwork has been related to properties of constituent materials and environmental factors. Recommendations for design performance of materials have been provided.
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Thapa, Bimal. "Laboratory Evaluation of Interface Bond Strength between Asphalt Layers." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1500373006147661.

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Books on the topic "Bond strength"

1

Mercaldi, Mallory. Aetna Bond: Strength, commitment, excellence. Hartford, Conn: Aetna Casualty and Surety Co., 1992.

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Establishment, Building Research, ed. Testing bond strength of masonry. Watford: Building Research Establishment, 1991.

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Association, Portland Cement, ed. Bond strength testing of masonry. [Skokie, Ill.]: Portland Cement Association, 1994.

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Yakimov, Audrey-Olga. Wetting kinetics and polypropylene-aluminum bond strength. Ottawa: National Library of Canada = Bibliothèque nationale du Canada, 1993.

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Stanish, Kyle David. Corrosion effects on bond strength in reinforced concrete. Ottawa: National Library of Canada = Bibliothèque nationale du Canada, 1999.

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Sunnan, Samer Sami. Factors affecting the bond strength of orthodontic brackets. Birmingham: University of Birmingham, 1997.

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Akgun, H. Bond strength of cement borehole plugs in salt. Washington, DC: Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1989.

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Akgun, H. Bond strength of cement borehole plugs in salt. Washington, DC: Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1989.

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Park, Mary Soo. Reusing Brick: Properties of Brick to Mortar Bond Strength. [New York, N.Y.?]: [publisher not identified], 2013.

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Shortall, A. C. Composite inlay/luting resin bond strength - surface treatment effects. [London]: Elsevier Science, 1996.

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Book chapters on the topic "Bond strength"

1

Gooch, Jan W. "Bond Strength." In Encyclopedic Dictionary of Polymers, 89. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_1483.

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Sun, Chang Q. "TDS: Bond Nature and Bond Strength." In Springer Series in Chemical Physics, 133–40. Singapore: Springer Singapore, 2014. http://dx.doi.org/10.1007/978-981-4585-21-7_5.

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Powers, J. M., and W. H. Tate. "Bond Strength to Enamel." In Dental Hard Tissues and Bonding, 53–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/3-540-28559-8_3.

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Wang, Gui-Xiang, Yuzhe Stan Chen, Ya-Kun Chen, and Yan Alexander Wang. "Effective Bond-Strength Indicators." In Concepts, Methods and Applications of Quantum Systems in Chemistry and Physics, 43–54. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-74582-4_3.

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Rajeckas, Valentinas. "Bond Strength and Its Prognosis." In Handbook of Pressure Sensitive Adhesive Technology, 115–57. Boston, MA: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4757-0866-0_7.

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Saffari, Nader, and David T. Green. "Impedance Profiling for Bond Strength Evaluation." In Review of Progress in Quantitative Nondestructive Evaluation, 1335–42. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3742-7_26.

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Ojard, G. C., D. K. Rehbein, O. Buck, and A. Bevolo. "Bond Strength Evaluation in Dissimilar Materials." In Review of Progress in Quantitative Nondestructive Evaluation, 1383–90. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3742-7_32.

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Singher, Liviu, Yitzhak Segal, Emanuel Segal, and Joseph Shamir. "Measurement of a Sandwich Bond Strength." In Review of Progress in Quantitative Nondestructive Evaluation, 1481–88. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1987-4_190.

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Madhavi, K., M. V. Renuka Devi, K. S. Jagadish, and S. M. Basutkar. "Shear Bond Strength of Brick Masonry." In Lecture Notes in Civil Engineering, 583–90. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6969-6_50.

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Buck, O., D. K. Rehbein, R. B. Thompson, D. D. Palmer, and L. J. H. Brasche. "Nondestructive Characterization and Bond Strength of Solid-Solid Bonds." In Review of Progress in Quantitative Nondestructive Evaluation, 1949–56. Boston, MA: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4613-0817-1_247.

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Conference papers on the topic "Bond strength"

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Opedal, Nils, Pierre Cerasi, and Torbjørn Vrålstad. "Cement Bond Strength Measurements." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96773.

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Abstract Cement is an important component to ensure safe and economic sustainable operations of wells. To optimize the performance of cement in a well, and to achieve an adequate level of well integrity, experimental testing of cement under realistic and relevant conditions is vital. This paper reviews three different types of cement bond strengths relevant for the petroleum industry and gives an evaluation of the methodologies used to study these bond strengths. Although the term “Bond strength” should at first be assessed and discussed as an easy-to-understand parameter, the review shows that it is important to understand the fundamental differences between the three-bond strengths. In terms of how they are measured, and in terms of what the information can be used for.
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Wang, B. Q., K. Davison, and J. Osenbach. "Copper wire bond strength reliability assessment." In 2012 IEEE 14th Electronics Packaging Technology Conference - (EPTC 2012). IEEE, 2012. http://dx.doi.org/10.1109/eptc.2012.6507087.

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Zhang, Fan, Hui-Ping Wang, Christina Hicks, Blair E. Carlson, Xin Yang, and Qing Zhou. "Effect of Prelube, Surface Coating and Substrate Materials on Initial Strength of Adhesive Joints Between Al Alloy and Steels." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62577.

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Growing usage of lightweight materials such as Al and Mg alloys in automotive body manufacture has come to a point that bonding of dissimilar materials is a realistic problem to address. A significant issue related to the bonding of dissimilar materials is that the differences in substrate surface conditions and substrate strengths often lead the bond to fail at strength far less than the bond strength established by adhesive manufacturer for a balanced joint. This research experimentally studied several factors potentially influencing initial strengths and debonding modes of adhesively-bonded Al-steel joints using single lap-shear coupons with comparison to like-substrate joints. Three commonly-used SLS coupon fabricating processes were investigated to determine which provided consistent bond strength and was efficient in making large quantities of coupons for the subsequent study. Next, the effect of prelube on the initial bond strength and debonding mode was investigated since the amount of prelube varies from sheet to sheet in automotive production. It was observed that even a very small change in the amount of prelube being applied on Al affected the initial bond strength. The more the prelube the weaker the bond became and the more adhesive failure occurred on the bonded Al surface. On the other hand, varying amount of the mill oil on the steel surface did not make much change to the bonding strength. Finally, various combinations of Al and steel substrates were studied to observe the effect of substrate materials on the initial bond strength and failure behavior. It revealed that the strength of joints between a relatively strong substrate and a relatively weak substrate fell below the strength of identical material joint made of the relatively strong substrate, and was closer to the strength of identical material joint made of the relatively weak substrate. For bonds having a high joint efficiency, adhesive failures were observed mostly on the surfaces of relatively weak substrates in the dissimilar material bonds due to large deformation in the weak substrate resulting in higher loading on that interface.
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"Bond and Anchorage of Reinforcement in High-Strength Concrete." In SP-176: High-Strength Concrete in Seismic Regions. American Concrete Institute, 1998. http://dx.doi.org/10.14359/5893.

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Manoharan, Subramani, Stevan Hunter, and Patrick McCluskey. "Bond pad effects on the shear strength of copper wire bonds." In 2017 IEEE 19th Electronics Packaging Technology Conference (EPTC). IEEE, 2017. http://dx.doi.org/10.1109/eptc.2017.8277533.

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M. Jafarlou, Davoud, Gehn Ferguson, Aaron Nardi, Victor Champagne, and Ian R. Grosse. "Cold Spray Deposition of Pure Titanium Coating Onto High Strength Substrate With Ultra-High Bond Strength." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-11689.

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Abstract Cold spray (CS) is a relatively new spray coating technology which has opened up a new avenue for deposition of bulk coatings with a thickness in the millimeter range. The unique bonding mechanism of the CS process facilitates deposition of commercially pure titanium (CP-Ti) on a wide range of substrates including high strength alloys. In this paper we present a multi-stage bond coat deposition process using a mixture of ultra-hard ceramic beads and CP-Ti prior to the top CP-Ti coating deposition to produce a coating layer with promising bond strength. In addition, three combinations of the carrier gas temperature (450, 540, and 550 °C), and pressure (2.5 and 3.8 MPa) were considered for maximizing bond strength. The relationship between bond strength and surface roughness was also examined. The shear test results indicated a significant high bond strength of approximately 195 MPa for the gas pressure of 3.8 MPa and temperature of 450 °C owing to the newly introduced bond coat deposition method. The relatively high bond strength is explained by the beneficial effect of multi-stage bond coat prior to the deposition of the bond coat. The results also indicated a tradeoff between bond strength and obtained surface roughness.
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Yuen, C. G., and S. L. Lissel. "Flexural bond strength of clay brick masonry." In MATERIALS CHARACTERISATION 2007. Southampton, UK: WIT Press, 2007. http://dx.doi.org/10.2495/mc070251.

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Takeuchi, Kai, and Tadatomo Suga. "Evaluation of Wafer Bond Strength under Vacuum." In 2021 IEEE CPMT Symposium Japan (ICSJ). IEEE, 2021. http://dx.doi.org/10.1109/icsj52620.2021.9648866.

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Ke, Xiaojun, Haiyang Sun, and Zhen Yang. "Calculation on Bond Strength of High-Strength Concrete Filled Steel Tube." In 2015 4th International Conference on Sensors, Measurement and Intelligent Materials. Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/icsmim-15.2016.183.

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He, Jun, Yongjin Guo, and Zhongqin Lin. "Numerical Study on the Effects of Bond Parameters on Thermosonic Bond Strength." In 2007 8th International Conference on Electronic Packaging Technology - ICEPT '07. IEEE, 2007. http://dx.doi.org/10.1109/icept.2007.4441500.

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Reports on the topic "Bond strength"

1

De Rosset, William S., Daniel J. Snoha, and Michael A. Minnicino. Strength of an Explosively-Formed Bond. Fort Belvoir, VA: Defense Technical Information Center, September 2006. http://dx.doi.org/10.21236/ada455905.

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Akgun, H., and J. Daemen. Bond strength of cement borehole plugs in salt. Office of Scientific and Technical Information (OSTI), July 1989. http://dx.doi.org/10.2172/5888676.

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Akgun, H., and J. J. K. Daemen. Bond strength of cementitious borehole plugs in welded tuff. Office of Scientific and Technical Information (OSTI), February 1991. http://dx.doi.org/10.2172/138038.

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Wouters, J. M., P. J. Doe, and W. E. Baker. Effect of panel alignment and surface finish on bond strength. Office of Scientific and Technical Information (OSTI), October 1991. http://dx.doi.org/10.2172/10186732.

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Peters, Piet W., and George S. Springer. Effects of Cure and Sizing on Fiber-Matrix Bond Strength. Fort Belvoir, VA: Defense Technical Information Center, September 1986. http://dx.doi.org/10.21236/ada174160.

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Nuttall, Christopher S. Bond Strength of Silorane- and Methacrylate-Based Composites to Resin-Modified Glass Ionomers. Fort Belvoir, VA: Defense Technical Information Center, January 2012. http://dx.doi.org/10.21236/ad1013158.

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LeClaire, Philip J. The Effect of Temperature on the Bond Strength of Epoxy-Coated Prestressing Strand. Precast/Prestressed Concrete Institute, 1991. http://dx.doi.org/10.15554/pci.rr.mat-008.

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Knab, Lawrence I., and Nathaniel E. Waters. A method to measure the tensile bond strength between two weakly-cemented sand grains. Gaithersburg, MD: National Bureau of Standards, 1988. http://dx.doi.org/10.6028/nist.ir.88-3883.

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Edwards, Glen R., and David L. Olson. Fundamental Concepts of Wettability and Interfacial Bond Strength in Aluminum Matrix, SiC-Reinforced Composites. Fort Belvoir, VA: Defense Technical Information Center, July 1990. http://dx.doi.org/10.21236/ada225158.

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Musah, Rabi A., Gerard M. Jensen, Robin J. Rosenfeld, Duncan E. McRee, and David B. Goodin. Variation in Strength of an Unconventional CH...O Hydrogen Bond in an Engineered Protein Cavity. Fort Belvoir, VA: Defense Technical Information Center, October 1998. http://dx.doi.org/10.21236/ada354823.

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