Abstract
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.
Highlights
The construction sector is in need of alternate and replacement materials for cement due to its costly and pollution-inclined production system
Figure shows the slump of fresh concrete
The findings demonstrate that the slump of samples containing the silica stone waste (SSW) powder increase could be could due to decreased water demand, whichbecannot be absorbed by SSW powder
Summary
The construction sector is in need of alternate and replacement materials for cement due to its costly and pollution-inclined production system. Yu et al [13] investigated the the compressive strengths of samples due to the cracking potential of glass when used as coarse strength of lightweight concrete containing lightweight waste glass as fine aggregate. Yu et al [13] investigated the strength of lightweight concrete containing lightweight many studies of silica derivatives in concrete such as silica fume [14] and nano-silica [15,16,17] have waste glass as fine aggregate. All research has reported that silica derivatives reduce cement consumption but the qualities of concrete, such as mechanical properties and microstructures. The SSW can be an appropriate sustainable unusual material as a replacement of cement while increasing the compressive strength [20]. SEM, EDX, FTIR, and investigate the use of SSW powder as a feasible alternative material to cement. SEM, EDX, FTIR, and XRD tests were presented to identify the chemical and microstructure component
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