Research on the road performance of steel slag mixed with recycled stable crushed stone
The study used the amount of steel slag and cement dosage as control parameters and designed 18 different sets of re-cycled stable crushed stone materials with steel slag.They were tested for their unconfined compressive strength,splitting strength,rebound modulus,and dry shrinkage coefficient.The study showed that increasing the amount of steel slag can improve the compressive strength and rebound modulus of crushed stone materials,reduce their dry shrinkage deformation ability,and the splitting strength shows a trend of first increasing and then decreasing.The increase in cement dosage will enhance the compres-sive strength,pre splitting strength,and rebound modulus of the material,but it will have a negative impact on the dry shrinkage coefficient of the material.Research recommends a 5%cement dosage and a 60%steel slag dosage as suitable parameters for se-lecting steel slag recycled stable crushed stone.The compressive strength,splitting strength,rebound modulus,and dry shrinkage coefficient are increased by about 6.2%,8.6%,7.2%,and 8.5%,respectively.
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