Impact of inclusion of lignocellulosic fibre, metal swarf and industrial waste by products to develop sustainable environment

ABSTRACT Day by day, the percentage of waste increased at an enormous rate due to the increase in population. Utilization of industrial waste in concrete not only prevents the duplication of natural resources but also helps to minimize waste disposal issues. One of the industrial byproducts used in geopolymer concrete is fly ash, which serves as the main source material and is highly rich in alumina and silica. In this study, Quarry rock dust is used as fine aggregate which replaces natural river sand. Recycled coarse aggregate and metal swarf was added in 50:50 proportion with respect to the volume of concrete to replace coarse aggregate. Alkaline activator solution, also called stimulator solution a combination of sodium hydroxide and sodium silicate, is added into the concrete. Polyethylene-based superplasticizer with 1% of the volume of fly ash is mixed into the concrete to increase its workability. Coir fibers (lignocellulosic fibers) are added to the concrete in percentages range from 0.2% to 1.2% at 0.2% interval. The specimens are tested for their compressive strength, water absorption, acid attack, and sulfate attack. Fibres below 0.6% dosage produced the optimum results.