| The utilization of lightweight concrete in construction of infrastructure is greatly beneficial, in that, it is capable of assembling loadbearing elements of small cross sections and a corresponding reduction in the size of the foundation. Basaltic pumice (scoria), although porous but a potential lightweight aggregate, remains unexploited in the mountains of Makkah and Madina in abundance. Waste materials/Industrial byproducts such as oil ash and crumb rubber have opened avenues for their use in concretes.;This study was intended to explore the possibility of utilizing different lightweight local materials, such as scoria, polypropylene, oil ash and rubber, as aggregate to develop Lightweight Concrete (LWC). The mechanical, thermal and durability properties of concretes produced utilizing these materials individually, as well as in combination with others, were investigated. Results of this investigation show that these lightweight materials are capable of producing thermal resistant concretes of low to medium strength and corrosion resistance requirements. Recommendations were made on possible applications of the developed LWC. |
