This research work deals with partial usage of LECA (Lightweight Expanded Clay Aggregate) as partial replacement
for fine aggregate in mortaring, plastering and concreting. The experimental work had been gone through by replacing the fine
aggregate by 25%, 50%, 75% and 100%. M20 grade of mortar and concrete is used in this project, the consistency of watercement ratio initiated at 0.4 and increased up to 0.5. When the percentage of LECA increased the w/c ratio also get increased.
Material study like specific gravity, water absorption and grading of LECA was initially done. strength characters of mortar cube
and concrete had been done for 7,14 and 28 days. A comparison study of conventional specimens and LECA was done in this
project. Comparatively replacing LECA in 100% obtaining the optimum strength in concreting and in mortar cube 25%
replacement of LECA obtain the maximum result. The compressive strength of brick masonry structure had been studied for
9”x9” wall by replacing the fine aggregate by using LE
