Influence of the Type of Aggregate from Industrial Waste on Corrosion Resistance of Modified Fine-Grained Concrete

Buildings

Madina Salamanova¹  Valerij Latypov²  Ljajsjan Zajceva²  Pavel Fedorov²  Ekaterina Lucyk²  Tat’jana Latypova³ 

[1] Department Technology of Construction Production, Grozny State Oil Technical University Named after Academician M. D. Millionshchikova, 364061 Grozny, Russia;Department of Building Structures, Ufa State Petroleum Technological University, 450064 Ufa, Russia;Department of Water Supply and Sewerage, Ufa State Petroleum Technological University, 450064 Ufa, Russia;

关键词: concrete;    waste;    quarry fines;    concrete scrap;    corrosion resistance of concrete;   

DOI  :  10.3390/buildings11080352

来源: DOAJ

【 摘 要 】

The development and implementation of “green” technologies in the construction sector, which ensure natural resource conservation, reduce harmful emissions and provide utilization of industrial waste, are key issues in material engineering of the XXI century. Extensive research has been devoted to solving these issues, including research in the field of concrete science. Still, the issue of developing concrete compositions with increased corrosion resistance remains much less studied. At the same time, reactive aggregates from industrial waste can have positive effect on durability of concrete, and the best result can be achieved by means of modification of a concrete mixture with highly effective additives. The article presents the research data in two lines—the study of applicability of reactive aggregates from waste products of nonmetallic and ceramic industries, mineral wool production and concrete scrap for production of corrosion-resistant concretes, as well as the assessment of possibility of Portland cement quantity reduction in a concrete mixture on local raw materials due to the introduction of additives based on polycarboxylates. The article presents the research evidence of the effect of dust and clay particles content on the quality of concrete with a polycarboxylate additive. The article describes the studies of corrosion resistance of concrete samples based on production wastes in sulfate environments and under the influence of carbon dioxide. The developed concrete compositions with waste use can be recommended for widespread application, rational use of resources, and production of durable high-quality concretes. The application of additives based on polycarboxylates makes it possible to produce concretes with the reduction of cement consumption in the mixture by 10–20% and decrease in the mode of thermo-wet treatment by two times.

【 授权许可】

Unknown