Performance of engineered cementitious composite containing stone slurry powder waste
Maninder Singh , Babita Saini , H. D. Chalak
Journal of Central South University ›› 2021, Vol. 28 ›› Issue (7) : 1990 -2002.
Performance of engineered cementitious composite containing stone slurry powder waste
Most of the materials used in engineered cementitious composite are fine in size to achieve ductile nature. Stone slurry powder (SSP) is an inert material obtained from stone industries as by-product which may cause hazardous impact on environment. In this research work, partial replacement of silica sand (SS) and fine sand (FS) by SSP with different contents (25% and 50% each) for making engineered cementitious composite has been explored. The performance was evaluated on the basis of strength, tensile strain, mid span deflection capacity, ultra-sonic pulse velocity and microstructure. Mechanical strength was found to be increased at 25% SSP in both replacements; whereas, strength decreased slightly at 50% replacement. Tensile strain, mid span deflection and quality of concrete were enhanced with increase in SSP content. Using SSP formed denser cementitious composite can help to save the natural resources and contribute in making green cementitious composite.
stone slurry powder / fine sand / scanning electron microscopy / energy dispersive X-ray spectroscopy / ultrasonic pulse velocity
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