Investigation of marble powder and waste as partial replacement for cement and sand on mortar properties

<p>In this paper an investigation of marble powder (MP) as partial replacement for cement and marble waste (MW) as partial replacement for sand is presented. MP replaced the cement at the rate of 5%, 10% and 15% of cement by mass. MW was used as a replacement for sand at constant 50% replacement level. Control mixture was prepared without MP and MW. Water to cement (w/c) ratio varied  since MP was considered as binder, thus w/b ratio was constant. Fresh properties were determined by air content, workability and density, while hardened properties were evaluated with compressive and flexural strength, absorption and quality. The results indicate a small decrease in workability, but no significant change in compressive strength for samples with 5% and 10% MP addition and 50% MW addition. However, increasing the MP replacement level beyond 10% leads to decrease in compressive strength.</p>