关键词: EPS混凝土;正交试验;EPS颗粒上浮;流动性;抗压强度

Abstract: EPS concrete is a new type of building materials with light weight,and good insulation properties,and it is widely used in engineering constructions.Suppressing the floating of EPS particles effectively is the key of the production of EPS concrete.The orthogonal test of six factors and three levels was adopted to optimize the mixing ratio of high consistency EPS plastic concrete so that the floating of EPS could be well controlled.The factors included water-cement ratio,EPS volume ratio,sand rate,the content of admixture Ⅰ,the content of admixture Ⅱ and the content of admixture Ⅲ.Based on the intuitive analysis and variance analysis of results,the optimal combination of the factors of EPS plastic concrete and the main influencing factors were obtained,and the relationship between the factors and the mobility and compressive strength was summarized.

Key words: EPS concrete;orthogonal test;floating of EPS particle;mobility;compressive strength