The tests were performed during 800 掳C exposure (hot test) and after cooling from 800 掳C to room temperature (cold test). In the cold test, the residual compressive strength of both the wet-mix and the dry-mix mortars increased with increasing content and decreasing particle size of ...
Achieving an inert product after the combined plasma melting of the mentioned waste is attained through the correct mix ratio and temperature. The high temperatures reached in the reaction chamber of the plasma reactor (up to 1,400 degrees C) guarantee the recrystallization of the chrysotile ...
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The cement used in the design of concrete is the result of a chemical process linked to the decarbonation of limestone conducted at high temperature and results in a significant release of carbon dioxide. Under the project EcoBéton (Green concrete) funded by the French National Research Agency ...
Another point of interest that has not been explored is the effect on fresh concrete temperature produced when the dry constituent mixing materials (also referred to as premix), such as portland cement, aggregate, silica fume, and ground quartz, are placed at some specific temperature and batch...
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Shear-thickening behavior of high-performance cement grouts — Influencing mix-design parameters 来自 国家科技图书文献中心 喜欢 0 阅读量: 205 作者: A Yahia 摘要: Rheology of concrete is of great importance to its flow performance, placement and consolidation. A full understanding of fresh ...
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1Control of hydrationReplacement of cement and/or silica fume by other SCMs and/or inert materials[24,32] Use of superplasticizer and viscosity modifying agent[37,40] Regulation of curing temperature[45] 2Addition of internal restraintUse of aggregate and/or fiber[52,60] ...
This paper covers the detailed version of the potential raw material deposits at Darukhula and the adjacent areas of Nizampur, the manufacturing of high-strength Portland cement samples from the same material and comparison of the physical and chemical parameters for resulting cement with British and...