关键词: 道路工程;水泥锶渣混凝土;路用性能;配合比;性能评价

Abstract: In order to analyze the feasibility of cement strontium slag concrete in low traffic road pavement,the influence of cement content,water consumption (slump),sand rate and gravel gradation on compressive strength and flexural strength of cement strontium slag concrete are analyzed by orthogonal test,a reasonable material mix proportion is selected;Through tests,the mechanical properties,drying shrinkage,temperature shrinkage and frost resistance of cement strontium slag concrete with different cement content are systematically evaluated.The results show that:the strength of cement strontium slag concrete is lower than that of ordinary C30 concrete,but the ratio of fold to compression is high,the modulus of elasticity is small,and it has better crack resistance;The dry shrinkage strain is 20％ lower than that of ordinary concrete,and the coefficient of temperature contraction is 53％ of that of ordinary concrete,and has excellent anti shrinkage properties;The frost resistance is not as good as that of ordinary concrete.Cement strontium slag concrete can be used in non-frozen areas with low traffic road pavement.

Key words: road engineering;cement strontium slag concrete;road performance;mix proportion;performance evaluation