Barely Significant

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After tempering at 200–800 °C, the hardness of the 1Cr13 specimens showed a trend of first increasing, then significantly decreasing and finally rapidly increasing with the increase in the tempering temperature, while the hardness of 2Cr13 showed a consistent decreasing trend, after tempering at 200–770 °C, with the increase in the tempering temperature.
The compressive strength with the increase in moisture content showed a trend of first increasing, then decreasing, and then increasing, indicating that the moisture content had a certain effect on the compressive strength of the material; the changes in the aggregate–binder ratio and calcium carbonate content did not have a significant effect on the uniaxial compressive strength.