RE-ENGINEERING THE MANUFACTURING PROCESSES OF SANDCRETE BLOCKS: A STATISTICAL ANALYSIS OF SAMPLES IN MINNA

Abstract

The increasing incidence of building collapse in Nigeria has raised concerns about the quality of building materials, necessitating the review of the block manufacturing process for enhanced quality control. This study focused on assessing the quality of commercially produced Sandcrete blocks in Minna, Niger State. Statistical analysis, including sampling, and laboratory experiments, was employed to evaluate the blocks' compliance with the Nigeria Industrial Standard for Sandcrete block. Results revealed that the sampled blocks exhibited dimensions, compressive strength, and water absorption capacity below the specified standards. Regression analysis showed a significant negative relationship between block dimensions and compressive strength. The findings indicate a clear need for improved manufacturing processes, stricter quality control measures, and adherence to the recommended standards to ensure the production of sandcrete blocks with adequate compressive strength for safe and reliable construction.