The pore size of MCRC is enlarged mainly due to the following three reasons: The hydration at the interface between MCNF and concrete is more sufficient because the carbon fiber absorbs the water originally used for mixing during mixing; however, due to the lack of hydration in other parts of concrete, the macropores show an overall trend of enlargement.
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Experimental study of impact mechanical and microstructural properties of modified carbon fiber reinforced concrete.
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