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首页> 外文期刊>International Journal of Engineering Research and Applications >Experimental Study on Concrete with Waste Granite Powder as an Admixture
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Experimental Study on Concrete with Waste Granite Powder as an Admixture

机译：废花岗岩粉掺合料混凝土的试验研究。

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摘要

Granite fines which are the byproduct produced in granite factories while cutting huge granite rocks to the desired shapes. Granite fines are used as a filler material in the concrete, replacing the fine aggregate which will help in filling up the pores in the concrete. Filling up of the pores by granite fines increase the strength of the concrete and also a material which is abundantly to investigate the strength behavior of concrete with use of granite fines as an additive. Concrete is prepared with granite fines as a replacement of fine concrete in 4 different propositions namely 2.5%, 5%, 7.5% and 10% and various tests such as compressive strength, split tensile strength and flexural strength are investigated and these values are compared with the conventional concrete without the granite fines. It was observed that substitution of 7.5% of cement by weight with Granite fines in concrete resulted in an increase in compressive strength for both 7 & 28 days to 33.14 & 43.40 N/mm2 compared to 23.26 & 39.41 N/mm2 of conventional concrete. Tensile strength too followed a similar pattern with a 7.5% substitution with granite fines increasing the tensile strength for 7 & 28 days to 2.87 &4.19 N/mm2 compared with a 2.4 & 3.4 N/mm2 of conventional concrete. However flexure strength of 7.5% granite fine replacement exhibited a good improvement of flexural strength for 28 days to 6.34 N/mm2compared to a 3.35 N/mm2 of conventional concrete. Further investigations revealed that to attain the same strength of conventional concrete a 10% substitution with granite fines is effective. So it can be concluded that when locally available granite is a good partial substitute to concrete and improves compressive, tensile and flexure characteristics of concrete, while simultaneously offsetting the overall cost of concrete substantially.
机译：花岗岩细粉是花岗岩工厂生产的副产品，同时将巨大的花岗岩岩石切割成所需的形状。花岗岩细粉用作混凝土中的填充材料，代替细骨料，这将有助于填充混凝土中的孔隙。用花岗岩细粉填充孔可以增加混凝土的强度，并且还可以使用花岗岩细粉作为添加剂来丰富地研究混凝土的强度性能。用花岗岩细粉代替4种不同的命题即2.5％，5％，7.5％和10％的细混凝土来制备混凝土，并研究了诸如抗压强度，劈裂抗拉强度和抗弯强度等各种测试，并将这些值与没有花岗岩的常规混凝土粉。观察到，用混凝土中的花岗岩细粉代替水泥重量的7.5％导致7天和28天的抗压强度分别提高到33.14和43.40 N / mm2，而常规混凝土为23.26和39.41 N / mm2。拉伸强度也遵循类似的模式，用花岗岩细粉替代7.5％，与传统混凝土的2.4和3.4 N / mm2相比，7和28天的抗拉强度提高到2.87＆4.19 N / mm2。然而，与传统混凝土的3.35 N / mm2相比，7.5％花岗岩细粉替代品的抗弯强度在28天之内表现出良好的抗弯强度，达到6.34 N / mm2。进一步的研究表明，要获得与常规混凝土相同的强度，用花岗岩细粉替代10％是有效的。因此可以得出结论，当地可用花岗岩代替混凝土是一种很好的局部替代品，可以改善混凝土的压缩，拉伸和挠曲特性，同时可以从根本上抵消混凝土的总体成本。

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