Experimental study of the effect of water reducing admixtures on concrete

下跌 水泥 耐久性 环境科学 水灰比 混凝土坍落度试验 减水剂 生产(经济) 节约用水 废物管理 工程类 材料科学 复合材料 水资源 生物 宏观经济学 经济 生态学
作者
G. N. Lokesh,P. Nanthakumar,N. Aishwarya,P. Parthiban,A. Ponshanmugakumar
出处
期刊:Materials Today: Proceedings [Elsevier]
被引量:4
标识
DOI:10.1016/j.matpr.2023.05.163
摘要

In the year 1950, each individual in India had access to 5177 cubic metres of water. This was a considerable sum. In 2009, after being trimmed back, its capacity was reduced to 1700 cubic metres. Water conservation is an absolute necessity in the contemporary world. The building and construction industry is the industry most responsible for environmental degradation. As a result of the production of one kilogramme of cement, 0.93 kilogrammes of carbon dioxide are released into the environment. It is crucial to take immediate action to limit the environmental damage caused by the production of cement, which must be reduced immediately. By adding water-reducing admixtures to concrete, the required workability (slump) can be achieved while maintaining a lower water-to-cement ratio than the control concrete. This can be performed without compromising the final product's durability. Utilizing admixtures that reduce the amount of water in the mixture might enhance the quality of concrete. In addition, specified levels of strength can be achieved while utilising less cement. In addition, they improve the quality of concrete even when the aggregates used to produce it are of mediocre or poor quality, and they make it easier to place concrete in challenging areas. The most common applications of water reducers in concrete have been for bridge decks, low-slump concrete overlays, and repairs to existing concrete. The widespread use of water-saving technologies could result in the following outcomes: Reduce the amount of cement used by 0.75 million tonnes for every 50 million tonnes of output, save up to 3.75 million kiloliters of water annually, and save the construction industry around Rs.3300 crores annually. All relevant tests must be conducted, and the findings must be compared to those of conventional M20 concrete in order to emphasise the differences. IS 9103:1999 has been adhered to in order to retain compatibility with India's existing standards.
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