碾压橡胶混凝土特性综述

Sunday U. Azunna , Farah N.A.A. Aziz , Raizal S.M. Rashid , Nabilah B.A. Bakar
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引用次数: 0

摘要

全球科研界和政府机构面临着一系列严峻的环境挑战,其中之一就是 "报废轮胎"(ELT)的回收利用。据估计,每年将有十亿个轮胎结束其使用寿命,而目前只有大约 50%的轮胎被回收利用,其余的轮胎则被填埋。因此,要解决 ELT 利用率上的这一缺口,就必须加强目前的应用,并进一步为回收轮胎材料创造新的应用。目前正在研究的一个领域是将废轮胎引入混凝土中,作为混凝土生产中天然骨料的部分替代品。尽管废轮胎前景广阔,但它也存在一些缺点,如与水泥基体缺乏适当的粘合力,橡胶内在强度较弱,因此不适合作为骨料广泛使用。为了克服这一障碍,研究人员研究了许多橡胶处理技术,以显著提高橡胶混凝土的机械特性和粘结特性。本综述论文探讨了橡胶替代率、橡胶骨料粒度和不同处理技术对橡胶混凝土各种机械特性的影响。但为了让混凝土行业接受橡胶混凝土,研究人员需要设计一种橡胶处理技术,以解决橡胶骨料的高可燃性和遇火释放有害气体的问题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Review on the characteristic properties of crumb rubber concrete

The global scientific research circle and government agencies face a number of serious environmental challenges, one of which is the recycling of “End of Life Tires” (ELT). An estimation of one billion tires is expected to end their useful life annually, of which only roughly 50% are recycled at the moment, with the remainder ending up in landfills. Consequently, to solve this gap in the ELT's utilization rate, it is imperative to enhance the current application and furthermore create new applications for recycled tire materials. One of such areas that is currently being investigated is the introduction of waste tire into concrete as partial replacement of natural aggregates in concrete production. Despite its great prospects, it has drawbacks such as lack of proper bonding with the cement matrix and weak rubber intrinsic strength, which make it unsuitable for widespread usage as an aggregate. To get past this obstacle, numerous rubber treatment techniques that enhance the mechanical characteristics of rubber concrete remarkably as well as the bonding properties have been studied by researchers. The impact of rubber percentage replacement, rubber aggregate size and different treatment techniques on various mechanical characteristics of rubber concrete are examined in this review paper. But in order for the concrete industry to embrace it, the researchers need to devise a rubber treatment technique that can tackle the issues of high combustible and the harmful gases that are released from the rubber aggregates when they come in contact with fire.

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