Effect of Glass Waste Powder on the Compressive Strength and Permeation Properties of Concrete Containing Portland Cement and Sawdust Ash

The paper investigated the effect of Glass Waste Powder (GWP), as a ternary cement component on the compressive strength and permeation resistance of Portland cement (PC) and sawdust ash (SDA) blended cement concrete. Compressive strengths up to 28 days and void content and initial surface absorption after 10 minutes (ISAT-10) up to 90 days at the total replacement levels of up to 30% were determined and compared with the values obtained for conventional concrete. Seven concrete mix combinations were examined at the water/cement (w/c) ratios of 0.35, 0.50 and 0.65 and at 28-day strengths of 35-40 N/mm2. At the same w/c ratios, compressive strength decreased and void content and ISAT-10 increased with increasing content of SDA and GWP. A unit replacement of PC with SDA reduced strength by 1.06% while a unit replacement of SDA with GWP, as a ternary cement component, increased strength by 1.64%. Similarly, a unit of SDA increased void content and ISAT-10 by 0.95 and 1.01% respectively while a unit of GWP as a ternary cement component reduced void content and ISAT-10 by 0.84 and 0.94% respectively. At same strengths, all the binary and ternary cement concretes possess higher resistance to permeation than the 100% PC concrete. At equal performance level, the ternary cement concretes possess higher permeation resistance than the binary cement concretes. The paper concluded that GWP, as a ternary cement component, improved the strength and permeation resistance of SDA binary cement concrete. Keywords: absorption, compressive strength, concrete, glass waste powder, permeation, sawdust powder DOI: 10.7176/CER/12-4-05 Publication date: April 30th 202