Abbasi Saeid, Jannaty Mohammad Hemen, Faraj Rabar H, Shahbazpanahi Shahriar, Mosavi Amir
Department of Civil Engineering, Sanandaj Branch, Islamic Azad University, Kurdistan 66169, Iran.
Civil Engineering Department, University of Halabja, Halabja 46006, Kurdistan Region, Iraq.
Materials (Basel). 2020 Aug 30;13(17):3832. doi: 10.3390/ma13173832.
Incorporating various industrial waste materials into concrete has recently gained attention for sustainable construction. This paper, for the first time, studies the effects of silica stone waste (SSW) powder on concrete. The cement of concrete was replaced with 5, 10, 15, and 20% of the SSW powder. The mechanical properties of concrete, such as compressive and tensile strength, were studied. Furthermore, the microstructure of concrete was studied by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy analysis (EDX), Fourier transformed infrared spectroscopy (FTIR), and X-Ray diffraction (XRD) tests. Compressive and tensile strength of samples with 5% SSW powder was improved up to 18.8% and 10.46%, respectively. As can be observed in the SEM images, a reduced number of pores and higher density in the matrix can explain the better compressive strength of samples with 5% SSW powder.
将各种工业废料掺入混凝土中最近在可持续建筑方面受到关注。本文首次研究了硅石废料（SSW）粉末对混凝土的影响。用5%、10%、15%和20%的SSW粉末替代混凝土中的水泥。研究了混凝土的力学性能，如抗压强度和抗拉强度。此外，通过扫描电子显微镜（SEM）、能量色散X射线光谱分析（EDX）、傅里叶变换红外光谱（FTIR）和X射线衍射（XRD）测试研究了混凝土的微观结构。含5%SSW粉末的样品的抗压强度和抗拉强度分别提高了18.8%和10.46%。从SEM图像中可以看出，孔隙数量减少且基体密度更高，可以解释含5%SSW粉末的样品具有更好的抗压强度。
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