Experimental investigation on compressive behaviour of plastic brick using M Sand as fine aggregate

Abstract The increasing usage of non-biodegradable material plastic causes hazardous effects on the environment while disposing of. By considering these effects, the waste plastic materials started to use in construction in various forms. In this paper, the plastic waste is added to M Sand to fabricate Plastic M Sand bricks. The dosage of plastic addition (Waste plastic: M Sand) is varied from the ratio 1:1 (C1 type) to 1:2 (C2 type). The mix ratios are fixed based on the trial casting. The behaviour of the Plastic M Sand bricks tested for Compression, Water absorption, soundness, and hardness test to ensure the performance in strength and durability checks. The performance under various tests conducted on plastic M Sand bricks has been compared with the standard bricks. In the compression test, the mix combination C2 type bricks show the highest strength of 55.91 MPa, which is 88.59% higher than standard bricks and 18.7% higher than C1 type bricks. On the other hand, the result of the Water absorption test shows that C1 type bricks perform better than the C2 type bricks and standard bricks. By interpreting the test results, the increase in the addition of plastic with M Sand increases the performance of the Plastic M Sand bricks in the water absorption test, but the behaviour of bricks under compression improved upto the dosage of 1:2 (C2 type).