Analysis on Pore Structure of Non-Dispersible Underwater Concrete in Saline Soil Area

In this paper, mercury intrusion porosimetry (MIP) is used to test the pore structure of non-dispersible underwater concrete so as study influence pouring and curing environment, age slag powder on characteristics concrete, analyze characteristics, porosity distribution in different hydration stages, reveal relationship between permeability concrete. The results show that pore-size fresh water condition better than sulfate environment mixed salt therefore, well are not conducive development concrete; chlorine has little effect under three conditions sulfate, salt, with lower without powder. indicate addition can ameliorate size non-dispersed reduce porosity, make more compact, which beneficial improve resistance at macro level.