Academic literature on the topic 'Stabilising additives'

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Journal articles on the topic "Stabilising additives"

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Schmidt, Wolfram, Henricus Jozef Hubertus Brouwers, Hans Carsten Kuehne, and Birgit Meng. "Influence of Environmental Temperatures on the Performance of Polymeric Stabilising Agent in Fresh Cementitious Materials." Key Engineering Materials 466 (January 2011): 97–104. http://dx.doi.org/10.4028/www.scientific.net/kem.466.97.

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Stabilising admixtures are commonly used additives in repair mortars and grouts. Beyond this, such type of admixture is increasingly used in concrete and other cementitious materials. In particular when fresh mortar or concrete properties have to be adjusted reliably, stabilising agents can be beneficially used to improve workability and robustness of the mixture. The mode of operation of these admixtures varies, rather affecting either the liquid phase or the solid particles in the dispersion, both causing strong interactions with the mortar or concrete system, and significant changes in their rheological behaviour. Furthermore, these are strongly affected by the environmental temperature during the casting process. In the paper the effect of temperature on the performance of stabilising agents in cementitious systems is presented and how performance changes affect fresh and hardening mortar or concrete properties. Particular attention is placed on interactions between stabilising agents and superplasticizers. Results are discussed with special focus on self-compacting concrete.
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Karpenko, Alisa V., and Denis V. Karpenko. "Economic Effect of Implementing Rubberised Asphalt." Materials Science Forum 931 (September 2018): 649–52. http://dx.doi.org/10.4028/www.scientific.net/msf.931.649.

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Article covers the questions of economic effectivity and efficiency of implementing rut-resistant rubberised asphalt. Economic data for all road-construction climatic zones in Russia is included into the investigation. Comparison of the two alternatives: pavement with the use of crumb rubber (RBV) and pavement with a known stabilising agent (SMA) is made. Calculation is based on the additives market price and on 0,8% mineral composition weight dosage. Calculation of the presents costs is made for the different road climatic zones with effective pavement thickness of 6 cm.
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O.A, Fadele,, and Ata, O.J. "Stabilising Potential of Sawdust Lignin based Extracts in Compressed Lateritic Bricks." Civil Engineering Dimension 20, no. 1 (April 7, 2018): 16. http://dx.doi.org/10.9744/ced.20.1.16-20.

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Lignocellulosic materials are abundant in nature, rich in some functional groups, considered less harmful to human health and the environment.The resulting waste may be recycled for other beneficial uses. Lignin is known to be a natural binder in lignocellulosic materials and several studies have confirmed it has binding ability with soil particles. This paper studied its stabilising potential in compressed lateritic bricks, especially its effects on density and compressive strength properties of the bricks. Lignin additives extracted from sawdust were used to stabilise laterite, while the bricks were moulded with the UNIFE ram, a type of the CINVA ram. The laterite was stabilised at 4%, 8% and 12%, while cement stabilised samples and 0% (unstabilised laterite) samples prepared accordingly were used as controls. The results showed that the LBAs contributed to the strength gained by the bricks at 3, 7, 14 and 28 days air curing, while the bricks samples were categorised as high density.
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STANIK, Winicjusz, and Jerzy CISEK. "The influence of cetane-detergent additives into diesel fuel increased to 10% (V/V) of RME content on energy parameters and exhaust gas composition of a diesel engine." Combustion Engines 179, no. 4 (October 1, 2019): 204–9. http://dx.doi.org/10.19206/ce-2019-434.

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To avoid the negative effects of increasing the amount of RME in the diesel fuel (to 10%), three different additive packages were used: stabilising, cleaning, and increasing the cetane number with different concentrations. The tests were carried out using a 4-cylinder, turbocharged 1.9 TDI engine from VW. The tests were carried out for 4 fuels (comparative fuel with a content of 7% RME and 3 test fuels with a content of 10% RME, differing in the content of the additive package.It was found that each of the 3 additive packages used does not have a significant impact on fuel consumption. However, a different effect of the tested additives on the composition of exhaust gases was observed. The first package had a slight effect on reducing the NOx concentration in the exhaust, but only for small engine loads. On the other hand, the second additive pack worked more effectively only at higher engine loads (in relation to the reduction of NOx concentration in the exhaust gases). In the third packet, the amount of the cetane additive was doubled (compared to the second packet). Then, the reduction in the NOx concentration in the exhaust gas by 3–8% was obtained with reference to the comparative fuel.
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Rawlings, Andrea E. "Membrane protein engineering to the rescue." Biochemical Society Transactions 46, no. 6 (October 31, 2018): 1541–49. http://dx.doi.org/10.1042/bst20180140.

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The inherent hydrophobicity of membrane proteins is a major barrier to membrane protein research and understanding. Their low stability and solubility in aqueous environments coupled with poor expression levels make them a challenging area of research. For many years, the only way of working with membrane proteins was to optimise the environment to suit the protein, through the use of different detergents, solubilising additives, and other adaptations. However, with innovative protein engineering methodologies, the membrane proteins themselves are now being adapted to suit the environment. This mini-review looks at the types of adaptations which are applied to membrane proteins from a variety of different fields, including water solubilising fusion tags, thermostabilising mutation screening, scaffold proteins, stabilising protein chimeras, and isolating water-soluble domains.
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Guo, Yan Ling, Shi Gang Long, and Rainer Telle. "Effect of Dopants on the Corrosion Behaviour of Zirconia by Steel at High Temperature." Key Engineering Materials 280-283 (February 2007): 999–1004. http://dx.doi.org/10.4028/www.scientific.net/kem.280-283.999.

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Zirconia based material is one of the most interesting materials for semi-solid processing of steel because of its good mechanical properties and high corrosion resistance at high temperatures. In many cases, degradation of zirconia refractories or advanced ceramics is due to unexpected tetragonal-tomonoclinic^transformation accompanied by volume expansion. But only little attention was paid to outdiffusion of stabilising additives. In present paper, zirconia based ceramics with different rare-earth oxides (Y2O3 and CeO2) are used in contact with HS6-5-2 steel at 1330°C in order to obtain a good understanding about the corrosion behaviour of high-strength zirconia tool material, especially the effect of yttria and ceria on the corrosion behaviour of zirconia. The results showed that both Y2O3 and CeO2 diffused out of the zirconia structure and formed new compounds with alloying elements of steel at the zirconia grain boundaries. Both lack of stabiliser and grain growth result in t-m transformation and cracks were formed in zirconia ceramic.
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SRINIVASAN, MARUWADA, and N. MANOJ KUMAR. "A LABORATORY STUDY OF BITUMINOUS MIXES USING A NATURAL FIBRE." YMER Digital 21, no. 04 (April 29, 2022): 567–79. http://dx.doi.org/10.37896/ymer21.04/57.

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Generally, a hydrocarbon mixture could be a mixture of coarse combination, fine combination, filler and binder. A Hot combine Asphalt could be a hydrocarbon mixture wherever all constituents ar mixed, placed and compacted at warm temperature. HMA is Dense ranked mixes (DGM) called Bituminous Concrete (BC) or gap ranked called Stone Matrix Asphalt (SMA). SMA requires stabilising additives composed of polysaccharide fibbers, mineral fibres or polymers to prevent drain down of the combination. within the gift study, an effort has been created to review the consequences of use of a naturally and domestically out there fibre known as SISAL fibre is employed as stabilizer in SMA associated as an additive in BC. For preparation of the mixes combination gradation has been taken as per MORTH specification, binder content has been varied often from fourdimensional to seven-membered and fibre content varied from 1/3 to most zero.5% of total combine. As a district of preliminary study, ash has been found to result satisfactory Marshall Properties and therefore has been used for mixes in subsequent works. victimization Marshall Procedure Optimum Fibre Content (OFC) for each B.C. and SMA mixes was found to be zero.3%. equally Optimum Binder Content (OBC) for B.C. and SMA were found to be five-hitter and five.2% severally. Then the B.C. and SMA mixes ready at OBC and OFC ar subjected to totally different performance checks like Drain down test, Static Indirect strength check and Static Creep check to judge the consequences of fibre addition on combine performance. it's ended that addition of sisal fibre improve the combination properties like Marshall Stability, Drain down characteristics and indirect strength just in case of each BC and SMA mixes. Ii is ascertained that SMA is healthier than B.C. in respect of indirect tensile strength and creep characteristics.
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del Prado, Agustin, Pablo Manzano, and Guillermo Pardo. "The role of the European small ruminant dairy sector in stabilising global temperatures: lessons from GWP* warming-equivalent emission metrics." Journal of Dairy Research 88, no. 1 (February 2021): 8–15. http://dx.doi.org/10.1017/s0022029921000157.

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AbstractRecent calls advocate that a huge reduction in the consumption of animal products (including dairy) is essential to mitigate climate change and stabilise global warming below the 1.5 and 2°C targets. The Paris Agreement states that to stabilise temperatures we must reach a balance between anthropogenic emissions by sources and removals by sinks of greenhouse gases (GHG) in the second half of this century. Consequently, many countries have adopted overall GHG reduction targets (e.g. EU, at least 40% by 2030 compared to 1990). However, using conventional metric-equivalent emissions (CO2-e GWP100) as the basis to account for emissions does not result in capturing the effect on atmospheric warming of changing emission rates from short-lived GHG (e.g. methane: CH4), which are the main source of GHG emissions by small ruminants. This shortcoming could be solved by using warming-equivalent emissions (CO2-we, GWP*), which can accurately link annual GHG emission rates to its warming effect in the atmosphere. In our study, using this GWP* methodology and different modelling approaches, we first examined the historical (1990–2018) contribution of European dairy small ruminant systems to additional atmosphere warming levels and then studied different emission target scenarios for 2100. These scenarios allow us to envision the necessary reduction of GHG emissions from Europe's dairy small ruminants to achieve a stable impact on global temperatures, i.e. to be climatically neutral. Our analysis showed that, using this type of approach, the whole European sheep and goat dairy sector seems not to have contributed to additional warming in the period 1990–2018. Considering each subsector separately, increases in dairy goat production has led to some level of additional warming into the atmosphere, but these have been compensated by larger emission reductions in the dairy sheep sector. The estimations of warming for future scenarios suggest that to achieve climate neutrality, understood as not adding additional warming to the atmosphere, modest GHG reductions of sheep and goat GHG would be required (e.g. via feed additives). This reduction would be even lower if potential soil organic carbon (SOC) from associated pastures is considered.
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Chan Min, Dat Le, Vadim B. Balabanov, and Maksim Yu Protsenko. "Use of hydrolytic lignin as a stabilising additive for crushed stone-mastic asphalt concrete." Journal «Izvestiya vuzov. Investitsiyi. Stroyitelstvo. Nedvizhimost» 9, no. 2 (2019): 334–41. http://dx.doi.org/10.21285/2227-2917-2019-2-334-341.

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The experience of using hydrolytic lignin in Russian and foreign literature allows it to be considered as a stabilising additive in the production of stone-mastic asphalt concrete mix. For thispurpose, it is necessary to conduct laboratory tests of raw materials and asphalt concrete mixtures with different percentages of hydrolytic lignin. Also, on the basis of the obtained results, to draw a conclusion about the use of waste from the hydrolysis industry for the building of the top layers of stone-mastic asphalt concrete coatings at the construction sites, reconstructions, major repairs and highways. Crushed stone-mastic asphalt concrete is an artificial road-building material, consisting of a mixture of mineral materials (crushed stone, sand from crushing siftings and mineral powder), oil road bitumen, used as a binding and stabilising additive for re-sistance to delamination and uniformity of crushed stone-asphalt concrete. Hydrolytic lignin is a polymer that makes up the walls of plant cells. The use of hydrolytic lignin as a stabilising additive for crushed stone-mastic asphalt concrete mixture allows to stabilise this mixture, to increase the adhesion of bitumen to the surface of the mineral material and to improve the physical and mechanical properties of crushed-stone-asphalt concrete. Based on the data obtained, the composition of crushed stone-mastic asphalt con-crete was developed using a stabilising additive from hydrolytic lignin. The use of hydrolytic lignin as a sta-bilising additive will improve the performance properties of crushed stone-mastic asphalt concrete, as well as reduce the cost of construction, reconstruction and overhaul of highways.
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Bosso, Antonella, Silvia Motta, Loretta Panero, Maurizio Petrozziello, Andriani Asproudi, Ricardo Lopez, and Massimo Guaita. "Use of polyaspartates for the tartaric stabilisation of white and red wines and side effects on wine characteristics." OENO One 54, no. 1 (January 28, 2020): 15–26. http://dx.doi.org/10.20870/oeno-one.2020.54.1.2527.

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Aim: The stabilising efficacy against tartaric precipitations of polyaspartates-based products (PAs), in particular potassium polyaspartate (KPA), was tested with six different wines (three white and three red). Some side effects on wine characteristics (white wine colour stability, wine turbidity and filterability) were also studied.Results and conclusions: All PAs showed good stabilising efficacy against tartaric precipitations according to the cold test. With the same test, the PAs were stable in wine for 1 year of storage, which was the total duration of the study. The dose of 100 mg/L was sufficient to stabilise the tested wines. No differences in filterability were observed in comparison with MTA (metatartaric acid). The hypothesised protective effect against colour browning in white wines was not observed.Significance and impact of the study: The international wine trade requires stable wines. This paper provides information to support wineries in managing the use of KPA, as little information is available to date in the literature on this stabilising additive.
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Dissertations / Theses on the topic "Stabilising additives"

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Okopi, I. A. "Solubility and migration of stabilizing additives in polyolefins." Thesis, University of Sussex, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382571.

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This thesis describes a series of studies of the physical behaviour of commercially important stabilizing additives in polyolefins. A series of nickelthiocarbamates have been synthesised and their solubilities measured as a function of temperature in linear hydrocarbon solvents, low density polyethylene and isotactic polypropylene. The results are compared with predictions from a regular solution model. The loss of three benzophenone UV-stabilizers from supersaturated solution has been investigated with the aim of determining whether the loss is a diffusion controlled blooming or involves phase separation. Our data shows this phenomenon is a diffusion controlled blooming process. The volatilities of these same UV-stabilizers have been measured as a function of temperature. The solubility of a typical hindered amine (Tinuvin 770) has been investigated in hydrocarbon solvents and in polypropylene by infrared methods. Low solubility values were obtained in all cases. The diffusion of Tinuvin 770 in polypropylene has been monitored by an infrared method developed for the purpose and the diffusion coefficient estimated over a range of temperatures. Litp.rature data on solubility of additives together with our own data are critically reviewed and the effect of structure on solubility is analysed. Data on the benzophenone additives allows prediction of loss times and mechanisms to be made for the first time.
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Whiteman, David James. "The physical chemistry of stabilising additives in rubber toughened polyolefins." Thesis, University of Sussex, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285136.

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Kozak, Darby Merrick. "The adsorption and stabilising effect of fuel additives on carbon black and steel surfaces." Thesis, University of Bristol, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.420903.

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Book chapters on the topic "Stabilising additives"

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Frigerio, Francesco, and Luciano Montanari. "Characterisation of the Surfactant Shell Stabilising Calcium Carbonate Dispersions in Overbased Detergent Additives: Molecular Modelling and Spin-Probe-ESR Studies." In Computational Science – ICCS 2007, 272–79. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-72586-2_39.

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