Influence of Pulverized Cow Bone as Partial Replacement of Cement and Demolished Concrete as Full Fine Aggregates on Properties of Foam Concrete

Civil Engineering Department, University of Mindanao, 8000 Davao City, Philippines

^* daarol_michelle@umindanao.edu.ph

Abstract

Cement is partially replaced by cow bone powder, and demolished concrete is used as fine aggregates in manufacturing foam concrete. Cow bone powder is a waste product with a high calcium content that may be used as a partial substitute for cement, and fine demolished concrete particles may be used to act as fine aggregates in foam concrete. Cow Bone powder is replaced in cement at 18%, 20%, and 25%. The study aims to determine the performance of the cow bone powder and demolished concrete mixture foam concrete compared to conventional foam concrete in terms of compressive strength, air voids, and fire resistance test. Comparing foam concrete with cow bone to ordinary foam concrete, the compressive strength of the foam rose at 18% and 20% replacement. However, foam concrete’s compressive strength dropped at 25% replacement of cow bone powder. The results show that cow bone powder significantly affects the foam concrete’s compressive strength. Additionally, since destroyed concrete wastes and a tiny amount of cow bone is fully utilized, the samples can receive more air, making this material perfect for lightweight partitioning. Pulverized Cow Bone as a partial replacement of cement and Demolished Concrete Waste does not influence the fire resistance of the samples. This study is limited to concrete walls but can serve as a reference for future researchers interested in developing durable concrete materials.