Preparation and properties of magnesite aggregate radiation - proof concrete

¹ Department of Mechanical and Power Engineering, Yingkou Institute of Technology, Yingkou 115024, China
² Department of Electrical Engineering, Yingkou Institute of Technology, Yingkou 115024, China

Abstract

This paper, from the point of view of improving compactness of density and crystal water content of radiation-proof concrete, using magnesite with high crystal water content as aggregate and alkaline potential water as mixing water, prepared ordinary density radiation-proof concrete and studied its mechanical properties, resistivity and pore structure. The results show that, compared to base ordinary concrete, the prepared concrete has better 28d compressive strength and resistivity, overall porosity decreases by 17%, and pore gradation at all ages improves significantly. It is indicated that the prepared magnesite aggregate radiation concrete has good density and durability, improves concrete radiation protection performance.