Use of Lightweight Concrete Debris for Brick in Wall Works

Abstract

The usage of lightweight concrete has been used in many construction works. As the
higher consumption of construction work, the amount of debris of lightweight concrete
increases with the works due to process of production, storage, and transportation. These
broken lightweight concrete became construction wastes. Therefore, the study of reusing
these debris was conducted by mixing with Type I Portland Cement in ratio 1:1, 1:1.5,
1:2, 1:2.5, and 1:3, respectively, at 3, 7, 14, and 28 days curing. The tests were carried
out all the samples for compressive strength, water absorption, and flexural strength.
The result indicated that lightweight concrete mixed with Portland cement at 28 days has
valued in accordance to TIS 2601-2556. At ratio 1:1 of external wall works and ratio 1:2.5
of internal wall works, the price is cheaper than lightweight concrete brick ฿30.15/sq. m.
and ฿104.12/sq. m., respectively (exclude the crushing of lightweight aggregate work).
Reusing of lightweight aggregate have a significant part to environment and a great way
to eliminate construction waste.