13-11-2014, 10:23 AM
Abstracts: Generally, aims to explore the potential utilization of waste crumb Crumbs in various Portland Cement Concrete categories for the production of non-structural Portland cement concrete to study the structural behaviour of concrete, and to help partially solving environmental problem produced from disposing waste Crumbs. Raw materials of coarse and fine aggregate used in this thesis were tested, fine aggregate (sand) was replaced using wait batching method by waste crumb Crumbs with 0, 2and 3% replacements for the PCC categories of M20 concert. Several tests were made on like compressive strength, slump, water absorption. Compressive strength decreased as the percent replacement by waste crumb Crumbs increased; water absorption initially decreased and started to increase after an increasing in the percent of replacement, slump showed no significant change. Finally it is recommended to use waste crumb Crumbs for non-structural Portland cement concrete, such as floor rips, partitions, back stone concrete, concrete blocks, and other non-structural uses.