Concrete is a brittle material with a tensile strength of only about 1/10 of its compressive strength.
The cross-sectional size of large volume concrete is relatively large, and the hydration heat of cement will cause a sharp increase in the internal temperature of the concrete; And in the future cooling process, significant tensile stress will be generated under certain constraints.
In large volume concrete structures, only a small amount of steel reinforcement is usually placed on the surface, or no steel reinforcement is provided.
Therefore, tensile stress should be borne by the concrete itself.
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