Table 2.2 shows the compressive strength research results of concrete and mortar, which are replaced by shell waste in certain components of the workpiece. By using shell waste in certain components, the replacement ratio is between 4% and 25%, and the water to binder ratio is 0.35- 1.0, most samples are cured in water for 28 days. The compressive strength is 2.7-88.5 MPa.
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