Construction of Concrete Paving Blocks using Industrial Wastes
J. Environ. Nanotechnol., Volume 7, No 4 (2018) pp. 34-39
Abstract
An attempt has been made in this work to utilize industrial wastes (like fly ash) and plastic waste in concrete for the construction of concrete paving blocks by partial replacement of cement and coarse aggregate with water-cement ratios of 0.55 and 0.6. The concrete paving blocks were constructed with the nominal mix of 1:2:4; the partial replacements of cement and coarse aggregates were 15% and 5% with fly ash and plastic waste, respectively. The research objectives were to determine the compressive strength, flexure strength and split tensile strength of the concrete paving blocks. Specimens were tested for a duration of 7, 14 and 28 days. The study shows that cement can partially be replaced with fly ash and coarse aggregate can partially be replaced with plastic waste. The biggest advantage of the utilization of fly ash and plastic waste in the concrete paving block can reduce its wastage; the disposal of these materials in open land renders it affected. The utilization of industrial waste materials in concrete will aid in the reduction of environmental pollution. The results of the investigation have shown that for 0.55 water-cement ratio, the mechanical properties of concrete specimens were almost the same after 28 days duration.
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