Abstract
One of the most prominent construction materials for walls in the Philippines is the concrete hollow blocks or CHB due to their lower cost than other available materials and the ease of production and installation. To manage our energy and resources, including waste, carbonized biomass as a bonding agent for CHB production was studied to aid in the country's growing need forconstruction materials . On-site fabricated CHB with several percent of carbonized biomass (CB) as substitutes for sand (0%, 20%, and 50% CB), including commercial CHB, are subjected to volume, weight, density determination, and ultimate compressive strength test. The gathered data undergo analysis through one-way ANOVA to determine the difference among the gathered compressive strength of CHB produced with different percentages of carbonized biomass. Cost analysis was also done to determine the costs and profitability of the CHB. As a result, the CHB with carbonized biomass as bonding agent produced CHB with low density, ultimate compressive strength better than commercially available CHB (with proper curing applied), and can be more profitable with increasing the carbonized biomass content.
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