Experimental Investigation on Structural Lightweight Concrete Using Expanded Clay Aggregates

Conventional concrete has a large self-weight, which is one of its downsides. In the past, there have been several efforts to make concrete lighter and more efficient as a building material. In this work, we try to figure out how different amounts of light expandable clay aggregates (LECA)—25, 50, 75, and 100% by weight—affect the strength qualities of modified M20 grade concrete. Several tests are performed on the modified concrete after 28 days, including compressive strength, split tensile strength, flexural strength, modulus of elasticity, and in-plane shear strength by mode-II fracture test. The results of these tests are then compared. The outcomes are seen as quite acceptable.