采石场粉尘与废弃混凝土混合混凝土试验分析

N. Devendran, D.Mohan Kumar
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引用次数: 0

摘要

在目前的情况下,随着创新,回收产品的使用越来越多。在新产品的制造中利用废旧产品是一项具有挑战性的工作。自然资源在短时间内减少,因此使用废物是必要的。在世界建筑领域,利用废旧混凝土作为粗骨料的替代品,对节约自然资源和经济效益有着至关重要的作用。天然砂是配制混凝土的主要材料,在配合比设计中也起着重要作用。其中一种材料是采石场石粉:采石过程中获得的副产品。对采石场粉尘作为替代砂石材料的适用性进行了研究,发现采石场粉尘可以改善混凝土的力学性能和弹性模量。目前的工作是尝试使用采石场粉尘作为混凝土中细骨料的部分替代品,拆除的混凝土废物作为混凝土中粗骨料的部分替代品。本工程的主要目的是测定其抗压强度、劈裂抗拉强度、弯曲强度。通过改变水泥、沙子和骨料的比例,制备了各种混合料来进行研究。所有混合料均按M20的特征强度(fck)设计。在室内测试了7、14、28天后混凝土的抗压强度、劈裂抗拉强度、抗弯强度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental Analysis of Concrete with Quarry Dust and Demolished Concrete Waste
The use of Recycle product is increasing with innovation in present scenario. The utilization of waste product in the manufacturing of new product is a challenging job. The Natural Resource decreases in a short period and therefore the use of waste product is necessary. In the construction field of the world, use of Demolished Concrete Waste as alternative of coarse aggregate plays a vital role to save natural resources and economically good for us. Natural sand is a prime material used for the preparation of concrete and also plays an important role in Mix Design. One such material is Quarry stone dust: a by-product obtained during quarrying process. Attempts have been made to study the suitability of Quarry Dust as sand replacing material and it has been found that Quarry Dust improves the mechanical properties of concrete as well as elastic modulus. This present work is an attempt to use Quarry Dust as partial replacement for fine aggregate in concrete and Demolished Concrete Waste as partial replacement for coarse aggregate in concrete. The main object of this project is to determine the Compressive strength, Split tensile strength, Flexural strength. Various mixes were prepared for carrying out the research by varying the proportions of cement, sand and aggregates. All mixes were designed for characteristic strength (fck) of M20. The Compressive strength, Split tensile strength, Flexural strength of concrete was tested in laboratory after 7, 14 and 28 days.
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