Добірка наукової літератури з теми "Crystalline admixture"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся зі списками актуальних статей, книг, дисертацій, тез та інших наукових джерел на тему "Crystalline admixture".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Статті в журналах з теми "Crystalline admixture"
Pazderka, Jiří. "The Crystalline Admixture Effect on Concrete and Cement Mortar Compressive Strength." Key Engineering Materials 722 (December 2016): 87–91. http://dx.doi.org/10.4028/www.scientific.net/kem.722.87.
Повний текст джерелаPazderka, Jiří, and Eva Hájková. "CRYSTALLINE ADMIXTURES AND THEIR EFFECT ON SELECTED PROPERTIES OF CONCRETE." Acta Polytechnica 56, no. 4 (August 31, 2016): 306–11. http://dx.doi.org/10.14311/ap.2016.56.0306.
Повний текст джерелаGarcía-Vera, Victoria, Antonio Tenza-Abril, José Saval, and Marcos Lanzón. "Influence of Crystalline Admixtures on the Short-Term Behaviour of Mortars Exposed to Sulphuric Acid." Materials 12, no. 1 (December 27, 2018): 82. http://dx.doi.org/10.3390/ma12010082.
Повний текст джерелаBeltrán Cobos, Rubén, Fabiano Tavares Pinto, and Mercedes Sánchez Moreno. "Analysis of the Influence of Crystalline Admixtures at Early Age Performance of Cement-Based Mortar by Electrical Resistance Monitoring." Materials 14, no. 19 (September 30, 2021): 5705. http://dx.doi.org/10.3390/ma14195705.
Повний текст джерелаNdoj, Genciana, Armona Kastrati, Erisa Elezi, and Klodjan Xhexhi. "Capacity of Self-Sealing Concrete Embedding Crystalline Admixture." European Journal of Engineering and Technology Research 7, no. 2 (March 30, 2022): 76–80. http://dx.doi.org/10.24018/ejeng.2022.7.2.2762.
Повний текст джерелаŽáková, Hana, Jiří Pazderka, and Pavel Reiterman. "Textile Reinforced Concrete in Combination with Improved Self-Healing Ability Caused by Crystalline Admixture." Materials 13, no. 24 (December 18, 2020): 5787. http://dx.doi.org/10.3390/ma13245787.
Повний текст джерелаHodul, Jakub, Nikol Žižková, and Ruben Paul Borg. "The Influence of Crystalline Admixtures on the Properties and Microstructure of Mortar Containing By-Products." Buildings 10, no. 9 (August 21, 2020): 146. http://dx.doi.org/10.3390/buildings10090146.
Повний текст джерелаMircea, Calin, Tudor-Panfil Toader, Andreea Hegyi, Brăduț-Alexandru Ionescu, and Andreea Mircea. "Early Age Sealing Capacity of Structural Mortar with Integral Crystalline Waterproofing Admixture." Materials 14, no. 17 (August 30, 2021): 4951. http://dx.doi.org/10.3390/ma14174951.
Повний текст джерелаKrishnaraj, L., P. T. Ravichandran, M. V.A.Karthik, N. Satheeshram Avudaiyappan, and . "A Study on Porous Sealing Efficacy of hydrophilic Admixture on Blended Cement Concrete." International Journal of Engineering & Technology 7, no. 2.12 (April 3, 2018): 446. http://dx.doi.org/10.14419/ijet.v7i2.12.11514.
Повний текст джерелаPazderka, Jiří, and Eva Hájková. "The Speed of the Crystalline Admixture’s Waterproofing Effect in Concrete." Key Engineering Materials 722 (December 2016): 108–12. http://dx.doi.org/10.4028/www.scientific.net/kem.722.108.
Повний текст джерелаДисертації з теми "Crystalline admixture"
Roig, Flores Marta. "Self-healing concrete: efficiency evaluation and enhancement with crystalline admixtures." Doctoral thesis, Universitat Politècnica de València, 2018. http://hdl.handle.net/10251/100082.
Повний текст джерелаSelf-healing materials are materials with the capability to repair their damage autonomously or with minimal help from an external stimulus. In the construction field, the development of self-healing elements will increase the durability of structures and reduce their maintenance and repair actions. Reinforced concrete elements frequently suffer small cracks (< 0.3 mm), not relevant mechanically, but they can be an entrance point for aggressive agents. Concrete has a natural self-healing capability able to seal small cracks, produced by the continuing hydration and carbonation processes. Recent studies have attempted to improve that healing capability and to design specific products to achieve it. These products include, among others: crystalline admixtures, micro- or macro-encapsulated agents, and even the use of bacteria. Crystalline admixtures (CA) are a concrete admixture that is claimed to provide self-healing properties. However, the lack of knowledge on their behavior and self-healing properties limits their usage. In addition, the methods to evaluate the self-healing capability of mortar and concrete are not standardized yet. This complicates the performance of a critical analysis of the different self-healing products and evaluation methods found in the literature. In order to answer to this lack of knowledge, the objectives of this thesis are: 1) to study and propose experimental procedures in order to evaluate self-healing in concrete and, 2) to evaluate experimentally the self-healing enhancements produced when introducing crystalline admixtures. This thesis includes the following tests for the determination of the self-healing: the evaluation of crack closing, water permeability, three point bending tests and capillary absorption test. In addition, several experimental campaigns have been performed with the objective of validating the proposed tests. Afterwards, these methods have been used to analyze the influence of several parameters, including among others: the presence of crystalline admixtures, the damage extent, healing time needed, concrete composition and healing conditions. Finally, the effects that crystalline admixtures produce in concrete are analyzed in terms of slump, strength and hydration. The results show that crack closing is an effective and simple method to evaluate self-healing. However, the orientation of the crack during healing is of great importance, and disregarding this aspect may lead to misleading conclusions. The water permeability method proposed in this work has good stability and it is easy to implement in concrete laboratories. Moreover, the relations obtained between crack parameters and water permeability confirmed the cubic relation, as reported in the literature. This work shows that analyzing healing efficiency by means of crack closing tends to overestimate self-healing if compared with the results obtained by means of water permeability. Sorptivity analysis tests were easy to implement, however, the results obtained in this work showed high dispersion and sensitivity to the variations of the cracks introduced during the precracking process. Regarding the evaluation of mechanical recoveries, the results show that the evolution of concrete properties with time is a parameter of importance that, therefore, should be considered, especially for early age cracks. In this work, crystalline admixtures have been reported as an enhancer of self-healing reactions, but with a limited capacity of enhancement. The proximity of CA to the industry is a positive point to their inclusion as a new type of admixture for concrete. However, the results obtained in this thesis indicate further analyses are needed to determine their full effects on concrete, especially regarding self-healing.
Els materials autosanables són materials amb la capacitat de reparar els seus danys de forma autònoma o amb ajuda mínima d'estímuls externs. En el camp de la construcció, el desenvolupament d'elements autosanables augmentarà la durabilitat de les estructures i reduirà les accions de manteniment i reparació. Els elements de formigó armat presenten freqüentment fissures menudes (< 0.3 mm), no rellevants des del punt de vista mecànic, però poden suposar un punt d'entrada per a agents agressius. El formigó té una capacitat de autosanació capaç de tancar fissures menudes, produïda principalment per la hidratació continuada i la carbonatació. Estudis recents han intentat millorar eixa capacitat i dissenyar productes específics per aconseguir-la. Aquests productes inclouen, entre d'altres, additius cristal·lins, agents micro- o macroencapsulats, i fins i tot l'ús de bacteris. Els additius cristal·lins (CA) són un tipus d'additiu reductor per formigó que es considera que proporciona propietats de autosanació. No obstant, la manca de coneixement sobre el seu comportament limita el seu ús. A més, els mètodes per avaluar la autosanació de formigons encara no estan estandarditzats. Açò complica la realització d'una anàlisi crítica dels diferents productes i mètodes d'avaluació proposats a la literatura. Per respondre a aquesta manca de coneixement, els objectius d'aquesta tesi són: 1) estudiar i proposar procediments experimentals per avaluar els fenòmens d'autosanació en formigó i, 2) avaluar experimentalment les millores produïdes en introduir additius cristal·lins. Aquesta tesi inclou com assajos per a la determinació de l'autosanació: l'avaluació del tancament de fissures, la permeabilitat a l'aigua, flexió a tres punts i absorció capil·lar. A més, s'han realitzat diverses campanyes experimentals per validar els assajos proposats. Posteriorment, aquests assajos s'han utilitzat per analitzar la influència de diversos paràmetres: presència d'additius cristal·lins, nivell de dany, temps necessari per a la sanació, composició del formigó i condicions de sanació. Finalment, s'analitzen els efectes produïts en afegir additius cristal·lins en formigó en fluïdesa, resistència i hidratació. Els resultats mostren que el tancament de fissures és un assaig eficaç i senzill per avaluar l'autosanació. No obstant això, l'orientació de la fissura durant la sanació ha resultat ser de gran importància, i no considerar aquest aspecte pot portar a conclusions enganyoses. L'assaig de permeabilitat a l'aigua proposat presenta una bona estabilitat i és fàcil d'implementar en laboratoris. A més, les relacions obtingudes entre els paràmetres de fissura i la permeabilitat a l'aigua han confirmat la relació cúbica de la literatura. Aquest treball mostra que analitzar l'eficiència de l'autosanació amb el tancament de fissures pot sobreestimar la capacitat de sanació, comparada amb els resultats obtinguts-dues mitjançant permeabilitat a l'aigua. Els assajos de sorptivitat van resultar fàcils d'implementar, però, els resultats obtinguts en aquest treball van mostrar una alta dispersió i sensibilitat a les variacions en les fissures produïdes durant el procés de prefissuració. Pel que fa a l'avaluació de la recuperació mecànica, els resultats mostren que l'evolució de les propietats del formigó amb el temps és un paràmetre d'importància que, per tant, s'ha de considerar, especialment per fissures primerenques. En aquest treball s'ha obtingut que els additius cristal·lins potencien les reaccions d'autosanació, però tenen una capacitat limitada. La proximitat dels CA a la indústria és un punt positiu per a la seva inclusió com un nou tipus d'additiu de formigó. Tanmateix, els resultats obtinguts en aquesta tesi indiquen que calen més anàlisis per determinar els seus efectes complets en formigó, especialment pel que fa a l'autosanació.
Roig Flores, M. (2018). Self-healing concrete: efficiency evaluation and enhancement with crystalline admixtures [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/100082
TESIS
Lu, Jui-Lung, and 盧瑞龍. "Development of Cementitious Capillary Crystalline Waterproofing Admixture." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/by8ex8.
Повний текст джерела國立高雄第一科技大學
營建工程研究所
103
In the earthquake zone countries, micro-cracks generated by the earthquake, its one of the main factors that reduce the durability of concrete structures. In addition, in wet conditions, the crack within the concrete structure shortens the service life due to the moisture in the air and harmful factors. As a result, in order to solve the aforementioned problems related to crack, one emerging material called “cementitious capillary crystalline waterproofing material” can seal the micro-cracks within the concrete, block the water seepage by the function of self-healing. Our research group has proposed capillary crystalline coating before long. However, the proposed coating material cannot directly be applied to different construction process; Thus, this study aims to continue the further exploration by following the result of the previous study. In the process of concrete mixing, it adds to admixture. The first advantage is that it can decrease period of time and manpower in working. The second one is that it can develop crystalline to seal the micro-crack in the interior of concrete. Its permeability is better than capillary crystalline coating. This study aims to develop cementitious capillary crystalline admixture to promote the compactness of concrete, which not only enhance the compressive strength, but also improve the water resistance of concrete, supplemented by microscopic analysis of observation crystallization structure. Through this study, the new type of cementitious capillary crystalline waterproofing with enhanced concrete compressive strength and improved water resistance can be expected. In the preliminary design formulation, method formulation by simplex lattice, test indicator was set on liquidity and setting time for judging. In the experiments analysis of result, its show that the optimal formulation:chelating agents L(53%)、the main agent R(41%)、additives M(3%) and additives Y(3%), the experiment result liquidity 255mm、setting time 255 minutes. Design formulation by orthogonal array, test indicators was set on compressive strength, permeability test for analysis, In the analysis showed that the compressive strength of the impact factor affecting level in order, is water-cement ratio(0.35)、the aggregate volume ratio( 65%)、the proportion of crystallization agent(20%), adding capacity(1.5%); pervious test the impact factor affecting level is sequentially crystallizing agent ratio(10%), adding capacity(1.0%) , the aggregate volume ratio(55%) , water-cement ratio(0.3).
Azarsa, Pejman. "Multi-scale investigation and resistivity-based durability modeling of EShC containing crystalline admixtures." Thesis, 2018. https://dspace.library.uvic.ca//handle/1828/10127.
Повний текст джерелаGraduate
2019-09-11
Частини книг з теми "Crystalline admixture"
Ammar, Lina, Kinda Hannawi, and Aveline Darquennes. "Self-healing Capacities of Mortars with Crystalline Admixtures." In RILEM Bookseries, 131–41. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-76465-4_12.
Повний текст джерелаKong, K. H., and C. Q. Lye. "Crystalline Admixtures for Autonomous Healing in Concrete: The Past, Present and Future." In Lecture Notes in Civil Engineering, 1–11. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-4040-8_1.
Повний текст джерелаCuenca, E., E. M. Gastaldo Brac, S. Rigamonti, V. Violante, and L. Ferrara. "Self-healing Stimulated by Crystalline Admixtures in Chloride Rich Environments: Is It Possible to Extend the Structure Service Life?" In Concrete Durability and Service Life Planning, 141–47. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43332-1_28.
Повний текст джерелаDoostkami, Hesam, Marta Roig-Flores, Alberto Negrini, Eduardo J. Mezquida-Alcaraz, and Pedro Serna. "Evaluation of the Self-healing Capability of Ultra-High-Performance Fiber-Reinforced Concrete with Nano-Particles and Crystalline Admixtures by Means of Permeability." In RILEM Bookseries, 489–99. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58482-5_45.
Повний текст джерелаHerz, Norman, and Ervan G. Garrison. "Metallic Minerals and Archaeological Geology." In Geological Methods for Archaeology. Oxford University Press, 1998. http://dx.doi.org/10.1093/oso/9780195090246.003.0018.
Повний текст джерелаТези доповідей конференцій з теми "Crystalline admixture"
Krelani, Visar, and Liberato Ferrara. "Reducing the Porosity and Sealing Cracks by Using Crystalline Admixture in Conventional Concrete." In University for Business and Technology International Conference. Pristina, Kosovo: University for Business and Technology, 2015. http://dx.doi.org/10.33107/ubt-ic.2015.71.
Повний текст джерелаKrelani, Visar, and Liberato Ferrara. "Reducing the Porosity and Sealing Cracks by Using Crystalline Admixture in Conventional Concrete." In University for Business and Technology International Conference. Pristina, Kosovo: University for Business and Technology, 2017. http://dx.doi.org/10.33107/ubt-ic.2017.49.
Повний текст джерелаŠebestová, Pavlína, Vít Černý, and Rostislav Drochytka. "The influence of the fireclay waste on the microstructure and the physico-mechanical properties of autoclaved aerated concrete." In The 13th international scientific conference “Modern Building Materials, Structures and Techniques”. Vilnius Gediminas Technical University, 2019. http://dx.doi.org/10.3846/mbmst.2019.128.
Повний текст джерела"Influence of Self-Healing Stimulated via Crystalline Admixtures on Chloride Penetration." In SP-326: Durability and Sustainability of Concrete Structures (DSCS-2018). American Concrete Institute, 2018. http://dx.doi.org/10.14359/51710987.
Повний текст джерела"Repeatability of Self-Healing in Fiber Reinforced Concretes with and without Crystalline Admixtures: Preliminary Results." In SP-319: Reduction of Crack Width with Fiber. American Concrete Institute, 2017. http://dx.doi.org/10.14359/51700860.
Повний текст джерела"Self Healing Of Cement Based Materials Engineered Through Crystalline Admixtures: Experimental Results From A Multinational University Network." In SP-305: Durability and Sustainability of Concrete Structures. American Concrete Institute, 2015. http://dx.doi.org/10.14359/51688573.
Повний текст джерела