Feasible and Experimental Study on Partial Replacement of Fine Aggregate using Construction Debris

S. Arivalagan, A. DineshKumarKS, R. Sudhakar
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Abstract

Concrete is the most widely used construction material today. The constituents of concrete are coarse aggregate, fine aggregate, coarse aggregate and water. Concrete plays a major role in the construction industry and a large quantum of concrete is being utilized. River sand, which isone of the constituent used in the production of conventional concrete, has become expensive and also a scarce material. In view of this,the utilization of demolished aggregate which isa waste material has been accepted as building material in many countries for the past three decades. The demand of natural sand in the construction industry has increased a lot resulting in the reduction of sources and an increase in price. Thus an increased need to identify a suitable alternative material from industrial waste in place of river sand, that is eco-friendly and inexpensive construction debris i.e fresh concrete being extensively used as an alternative to the sand in the production of concrete. There is an increase in need to find new alternative materials to replace river sand so that excess river erosion is prevented and high strength concrete is obtained at lower cost. One such material is building construction debris: a by-product obtained during construction and demolition waste. An experimental investigation is carried out on M 25 concrete containing debris during construction in the different range of 20%, 30% & 40% by weight of sand. Material was produced, tested and compared with conventional concrete in terms of workability and strength. These tests were carried out on standard cube of 150×150×150 mm and beam of 700×150×150 mm for 28 days to determine the mechanical properties of concrete.
建筑垃圾部分替代细粉骨料的可行性与试验研究
混凝土是当今应用最广泛的建筑材料。混凝土的成分有粗骨料、细骨料、粗骨料和水。混凝土在建筑工业中起着重要作用,大量的混凝土正在被利用。河砂是用于生产传统混凝土的成分之一,它已经变得昂贵,也是一种稀缺的材料。鉴于此,在过去的三十年里,利用废旧骨料作为建筑材料已被许多国家所接受。建筑行业对天然砂的需求增加了很多,导致来源减少,价格上涨。因此,越来越需要从工业废料中找到一种合适的替代材料来代替河砂,这种材料既环保又便宜,即在混凝土生产中广泛使用新鲜混凝土作为沙子的替代品。人们越来越需要寻找新的替代材料来取代河砂,以防止过度的河流侵蚀,并以较低的成本获得高强度混凝土。其中一种材料是建筑建筑碎片:一种在建筑和拆除过程中产生的副产品。对m25混凝土在施工过程中含砂量在20%、30%、40%的不同范围内进行了试验研究。对该材料进行了生产、测试,并与常规混凝土进行了和易性和强度比较。在150×150×150 mm标准立方体和700×150×150 mm标准梁上进行了28天的试验,以确定混凝土的力学性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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