Carbon fiber reinforced recycled aggregate concrete
A technology of recycled aggregate and recycled coarse aggregate, applied in the field of concrete, can solve the problems of high material processing cost, unsatisfactory effect, complex formula, etc., and achieve the effect of low processing cost, delayed consolidation time, and simple processing technology
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[0021] Introduce the specific embodiment of the present invention below, and comparative example and detection result situation; In order to demonstrate technical scheme and beneficial effect of the present invention in detail.
[0022] In the embodiment, the cement is 325 conventional cement, the sand is natural fine sand, the recycled coarse aggregate made by crushing waste concrete has a particle size of 20-40mm, the carbon fiber grade is T700, and the length is 10-20mm, and the retarder grade is ZLC-A1.
[0023] The pretreatment of the carbon fiber is to weigh 1.6% of the total weight of the carbon fiber and dissolve the silane coupling agent in an appropriate amount of water; soak the carbon fiber in the aqueous solution and take it out to dry; or spray the aqueous solution evenly on the surface of the carbon fiber and then dry it.
[0024] Then according to the ratio of C30, silica fume, carbon fiber, retarder, and slaked lime were added to prepare 10 groups of concrete s...
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