Traditional Culture Encyclopedia - Traditional culture - What are the uses of coarse aggregate and fine aggregate of concrete?
What are the uses of coarse aggregate and fine aggregate of concrete?
Coarse aggregate is suitable for mass concrete, such as foundation and pile cap. Fine aggregate is suitable for structural members with high steel bar density, such as beams and walls. Aggregate has a certain relationship with concrete grade, and the strength of coarse aggregate of low-grade concrete below C30 is relatively high. High-grade concrete mostly adopts medium-fine aggregate, especially concrete with centrifugal forming technology above C60. The use of fine aggregate is beneficial to improve the compactness of concrete and reduce the porosity.
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