000			02163nam a2200253 4500
999			_c14179 _d14179
082			_aRef 373.07 Sa965 2026
245			_aSawdust-concrete vs coconut coir (Cocos nucifera)-concrete : _ba comparative analysis of its structure stability and blocking capacity to mitigate flood / _cby Nathan Josh D. Asoy, Evania Francesca B. Contreras, Princess N. Jardiolin, Reuven Andre A. Montenegro, and Mary Margaret F. Panes.
260			_a[Iloilo City] : _b[Ateneo de Iloilo], _cc2026.
300			_a73 p.
520			_aIloilo City faces persistent flooding challenges, highlighting the limitations of traditional infrastructure. This study investigated sustainable engineering solutions by evaluating sawdust and coconut coir as alternative fine aggregates in concrete for floodwall construction. Using an experimental comparative design, mixtures were tested at 50%, 75%, and 100% sand replacement against a standard control. Mechanical (compressive and flexural strength) and hydraulic (infiltration resistance) properties were assessed after a 28-day curing period. Statistical analysis using ANOVA and Tukey HSD showed that coconut coir-concrete performed significantly better than sawdust mixtures (p < 0.001). The 50% and 75% coconut coir mixes achieved higher compressive strength (up to 9.57 MPa) and greater flexural strength. Coconut coir samples also had lower water infiltration and minimal damage under pressure, while high sawdust content resulted in high porosity and structural failure. Overall, coconut coir proved to be the better organic additive for flood-mitigation structures, with a 50% replacement ratio identified as the most effective and durable mix.
526			_a300-399
650			_aLightweight concrete.
650			_aWaste products as building materials.
650			_aCoconut coir.
650			_aFiber-reinforced concrete.
650			_aFlood control -- Materials.
650			_aAgricultural wastes.
700			_aAsoy, Nathan Josh D.
700			_aContreras, Evania Francesca B.
700			_aJardiolin, Princess N.
700			_aMontenegro, Reuven Andre A.
700			_aPanes, Mary Margaret F.
942			_2ddc _cBK