With the increase of LS content, the axial compressive strength, elastic modulus, and peak strain of concrete showed a trend of first increasing and then decreasing.
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Compression stress-strain curve of lithium slag recycled fine aggregate concrete.
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The sentences
With the increase of the replacement rate of RFA, the axial compressive strength and elastic modulus of concrete showed a decreasing trend, while the peak strain showed the opposite trend, which increased with the increase of the replacement rate of RFA.