PRODUCTION OF LIGHTWEIGHT BUILDING BLOCK

Abstract

Environment pollution is the most concerned issue in today’s world. Construction Industries is one of the largest sectors to pollute the environment. In Bangladesh, burnt clay block is the most commonly used building material which produce a significant amount of greenhouse gasses. For a better environment, alternative sustainable building material is a must. This study appraises alternative building materials and technologies as a walling material. Burnt clay block have been used for long in building construction and its demand is increasing rapidly with the passage of time. In the burning process of clay block air is polluted and necessary clay is collected from agricultural land. As a result, agricultural land is being diminished. So alternative building block can be the possible solution of the disadvantages of burnt clay block. In this thesis, we use four types of blocks. These are Block with EPS beads, Burnt clay block (BCB), Block from Narayanganj (NT), Block from Gabtoli (GT). Among which Block with EPS beads was produced in laboratory. The bulk density of Block with EPS beads, Burnt clay block, block from Narayanganj, block from Gabtoli were 1400, 1741, 1308 and 1500 kg/m3 respectively. The absorption of Block with EPs beads, Burnt clay block, block from Narayanganj, block from Gabtoli were 9.6, 13.1, 11.9 and 10.5% and respectively. The 28 days compressive strength of these blocks were 1740, 3300, 2040 and 1800 psi respectively. So for use in construction block from EPS beads is better than other types.