DURABILITAS BETON DENGAN KADAR AIR DAN SEMEN TEREDUKSI BERDASARKAN UJI POROSITAS DAN LAJU PENYERAPAN AIR

Concrete is a vital construction material, and its success heavily depends on the composition and proportions, particularly the water and cement content. This study aims to explore the effects of variations in water and cement content, as well as the use of superplasticizer and hydrated lime, on the performance of concrete. By reducing the water and cement content, it is expected to enhance the compressive strength and durability of the concrete. Laboratory tests were conducted to measure the sorptivity and porosity of the concrete, using cube specimens sized 10 x 10 cm.

In this study, it was found that the use of 1% Superplasticizer and 10% Hydrated Lime can increase the density of concrete, as evidenced by a porosity value of 7.89% compared to normal concrete (without additives), which has a porosity value of 9.09%. Additionally, concrete with 1% superplasticizer has a porosity value of 8.76%. However, the percentage of the mixture using 10% hydrated lime resulted in a Water Absorption rate that is not linear with the porosity results.