Study on the Effects of Steel Slag on the Mechanical Properties and Microstructure of Cement-Stabilised Base Course Mixtures.

(2) As the steel slag content increased, the unconfined compressive strength and splitting tensile strength of the cement-stabilised steel slag mixture showed a trend of initially increasing and then slightly decreasing, whilst the compressive modulus of elasticity continued to rise.

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Compared to the cement-stabilised steel slag aggregate with a cement content of 3.5%, the pore area between the steel slag aggregates shows a decreasing trend, with a reduction in the number of pores, which is more conducive to improving the mechanical strength of the cement-stabilised steel slag mixture.

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Furthermore, as the density of steel slag is significantly greater than that of limestone, the maximum dry density of the mixture shows an increasing trend with an increase in the steel slag content [ 18 ]. 3.2.

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