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Computers and Concrete Volume 25, Number 1, January 2020 , pages 59-65 DOI: https://doi.org/10.12989/cac.2020.25.1.059 |
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Effect of fine fillers from industrial waste and various chemical additives on the placeability of self-compacting concrete |
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Yelbek Utepov, Daniyar Akhmetov and Ilnur Akhmatshaeva
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| Abstract | ||
| The premise for the study reflected in this article is the need to dispose of industrial waste, which is increasingly being used in the construction materials industry. Also, dynamically developing building industry demands attention of scientists and a direction of their works on improvement of the technology of carrying out construction works. Thus, the article is devoted to studying the influence of various chemical additives and fine fillers (industrial wastes) available in Kazakhstan on selfcompacting concrete (SCC) mixtures and its rheological, physical, and technical properties. According to the studies, revealed the most efficient type of fine-dispersed filler and the most optimal type of chemical additive to enable obtaining a high-quality SCC mixture based on local raw materials. As a result, the use of microsilica in comparison with other industrial wastes resulted in a conglomerate with high compressive strength of SCC at early terms of curing. In terms of economic efficiency and quality improvement, the results of study are of practical value for the manufacturers of ready-mixed concrete operating in Kazakhstan. | ||
| Key Words | ||
| self-compacting concrete; placeability; persistence; chemical additives; fine fillers from wastes | ||
| Address | ||
| Yelbek Utepov: Department of Civil Engineering, L.N. Gumilyov Eurasian National University, 2 Satpayev, Nur-Sultan 010000, Kazakhstan; NIISTROMPROJECT (LLP), 152/6 Radostovsia, office 109, 050000 Almaty, Kazakhstan Daniyar Akhmetov, Ilnur Akhmatshaeva: NIISTROMPROJECT (LLP), 152/6 Radostovsia, office 109, 050000 Almaty, Kazakhstan | ||