000			02168nam a2200205 4500
999			_c12993 _d12993
082			_aRef 373.07 Ef41 2024
245			_aThe efficacy of carbonized risce husk with powdered eggshells as partial replacement to cement / _cby Josh Andrie G. Dorado, Jed Benedict M. Macailing, Rainer Jasper S. Gasacao, & Hean Jubert I. Superticioso.
260			_a[Iloilo City] : _b[Ateneo de Iloilo], _cc2024.
300			_a71 p.
520			_aThis study explores the effectiveness of carbonized rice husk (CRH) and powdered eggshells as partial cement replacements in sustainable concrete, focusing on compressive strength, water absorption, and weight. Employing a factorial quasi-experimental design, four CRH and eggshell ratios were tested across three curing periods. Twenty-four concrete samples were prepared, with 12 for compressive strength and weight assessment using ASTM cylinders (4x8 inches), and 12 for water absorption evaluation. In the results of the study, the data was analyzed through a One-way ANOVA statistical test. It revealed that there was no significant difference between the concrete samples with different ratios and different curing periods on their compressive strength, water absorption, and weight. However, there was a significant difference with the different curing periods and water absorption. Statistical analysis indicated no significant difference in compressive strength, water absorption capacity, or weight between concrete samples grouped by replacement ratios, while a significant difference was observed in water absorption capacity across different curing periods. To conclude, concrete samples with higher replacement ratios tended to exhibit lower compressive strength and higher water absorption rates. However, longer curing periods generally led to reduced water absorption, indicating potential for improved durability.
526			_a300-399
650			_aEggshells--Powdered.
650			_aCement--Research.
650			_aRice hulls.
700			_aDorado, Josh Andrie G.
700			_aMacailing, Jed Benedict M.
700			_aGasacao, Rainer, Jasper S.
700			_aSuperticioso, Hean Jubert L.
942			_2ddc _cBK