Effect Of Polypropylene Fiber On The Properties Of Self- Compacting Concrete With M-Sand

Abstract

Concrete made from agro-industrial waste is frequently utilized for both environmental and economic benefits. Extensive research has explored the incorporation of such waste materials in both plain and self-compacting concrete (SCC). This study investigates the recent advancements in SCC incorporating agricultural and industrial waste, with a focus on the use of admixtures to enhance SCC quality. Specifically, the impact of polypropylene fiber on the properties of self-compacting concrete with manufactured sand (M-sand) is examined. Experimental results indicate that incorporating polypropylene fiber improves the concrete's strength due to the bond formed between the fiber and concrete matrix. Compressive strength tests conducted using a Universal Testing Machine (UTM) revealed that an optimal fiber content of 0.5% yields the highest compressive strength. Higher fiber content results in decreased strength. Testing of M20 grade concrete blocks (150 x 150 x 150 mm) after 7 and 14 days of curing showed that 0.5% fiber content provided the best results, with a compressive strength of 22.755 MPa after 14 days. These findings suggest that adding 0.5% polypropylene fiber significantly enhances the performance of self-compacting concrete with M-sand, providing a viable option for improving concrete properties while utilizing agro-industrial waste.