Influence of both Blaine value and curing condition on pore sizes distribution of mortar with using blast furnace slag

Abstract

Concrete has been used as the primary material for civil engineering infrastructure systems. RC structures in marine environments are at risk of steel corrosion due to the penetration of chloride ions. The concrete used blast furnace slag (from now on referred to as “BFS”) to improve durability and water tightness, which development of porosity properties is essential and has low initial strength and susceptible to environmental effects. The use of industrial by-product materials, such as BFS, which aims to improve the pore size distribution of cement, has become a theme of this study when used as a sufficient amount of replacement Blaine value of BFS are experimentally investigated. The Mercury injection porosimetry (from now on referred to as “MIP”) technique was used to examine the effect of water to cement ratio (w/c) on the pore structure of manufactured BFS were different Blaine value in this study. The pore size distribution of cement- based materials has been reviewed, with test results in this investigation also indicate that the threshold radius increases with different curing conditions and BFS replacement percentages. Porosity and mean diameter were considered, which clearly explains the relationship between pore structure and curing condition, as shown in the result. The intruded pore volume per volume of paste in the mortar increases with increasing replacement level concentration. The strongly suggested that pores distribution be disturbed by this testing might not be only pores in the paste alone although could include water ratio, fissures, and bond cracks at the aggregate-paste interface.