Evaluation of compressive strength for paper sludge brick

Abstract

This study was to investigate the suitability of waste paper produced from paper mill used to make bricks and sand mixed with cement. Physical characteristics and chemical products such as specific gravity and absorption of water from paper sludge review. The mixture of cement and sand with different content of paper sludge will be prepared and compressive strength, water absorption and density of the brick was tested by making comparisons between the control brick and brick from the mixed paper sludge (20%, 30%, 40% and 50%) used. Based on these findings, the percentage of paper waste suitable content is less than 20%. This is because only 20% use of waste paper to achieve results that meet Standard Specification for Building Works 2005 (JKR) which is 5.601 MPa in a period of 28 days. Strength decrease associated with water absorption of bricks and the contents of paper sludge used. Based on the study, the increasing of paper sludge content as a mixture of brick causes the brick water absorption is higher and this resulted effect compressive strength become lower.