Improved Concrete Properties Using Quarry Dust as Replacement for Natural Sand
Improved Concrete Properties Using Quarry Dust as Replacement for Natural Sand
复制标题
使用采石场粉尘替代天然砂改善混凝土性能
DOI：
10.6084/m9.figshare.1372347.v1
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Hamid Mir Anzar
中科院分区：
文献类型：
--
作者：
Ijerd;Hamid Mir Anzar
混凝土在建筑业中发挥着重要作用。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的作用。现在一天的河流侵蚀和其他环境问题导致河砂稀缺。天然砂来源的减少和降低混凝土生产成本的要求导致了对寻找新的替代材料来代替河砂的需求增加，从而防止过度的河流侵蚀并以较低的成本获得高强度混凝土。其中一种材料是采石场粉尘：采石过程中产生的副产品。已经尝试研究采石场粉尘作为砂替代材料的适用性，并且已经发现采石场粉尘改善了混凝土的机械性能以及弹性模量。当粗细比为60：40时，抗压强度最佳。
Concrete plays a major role in the construction industry. Natural sand is a prime material used for the preparation of concrete and also plays an important role in Mix Design. Now a day's river erosion and other environmental issues have led to the scarcity of river sand. The reduction in the sources of natural sand and the requirement for reduction in the cost of concrete production has resulted in the increased 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 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. The optimum compressive strength is achieved at the proportion of fine to coarse with 60:40 ratio.