Kajian Kuat Tekan dan Lentur pada Komposit Mortar ECC dengan Kerikil Aspal Porous Berbasis Styrofoam dan Crumb Rubber

Abstract

The issues of road infrastructure and waste management in Indonesia present serious challenges that require innovative and sustainable solutions. This study aims to evaluate the compressive and flexural strength of Engineered Cementitious Composite (ECC) mortar combined with porous asphalt gravel modified with styrofoam and crumb rubber, as well as supplementary materials such as fly ash and rice husk ash. The composite was created by mixing asphalt gravel modified with styrofoam and crumb rubber, then pouring ECC mortar into the voids of the aggregate. Testing was conducted on cube specimens (15×15×15 cm) for compressive strength and beam specimens (15×15×60 cm) for flexural strength, at curing ages of 3 and 7 days. The study utilized styrofoam and crumb rubber additives at 7.5% and 15%, fly ash at 15%, and rice husk ash at 5% of the cement weight. The results are expected to offer an environmentally friendly, cost-effective, and high-performance alternative for road pavement. Additionally, this approach has the potential to reduce persistent organic and inorganic waste, while strengthening the strategy of utilizing industrial and agricultural waste in the construction sector.