Kesan penggunaan bahan tambah galian dan nisbah air-simen ke atas sifat fizikal konkrit prestasi tinggi

Abstract

This paper discusses the effect of mineral admixture and water/cement ratio on the physical properties of high performance concrete. Since mineral admixtures such as silica fume, fly ash fume and ground granulated blast furnace slag are known to improve the properties of fresh concrete and increase strength and durability of hardened concrete, they are now widely used as a cement replacement materials. In this study, silica fume and fly ash fume together with chemical admixture have been used to investigate the role of mineral admixtures and water/cement ratio on the strength and durability of high performance concrete. The result shows that the effects of mineral admixtures on strength and durability of hardened concrete depends on the percentage of water/cement ratio. The study also focuses on the important role of the hydration process that produces hardened concrete of higher strength and durability