Graphene concrete and preparation method thereof
A graphene and concrete technology, applied in the field of concrete, can solve the problems of complicated preparation process, insufficient mechanical properties, difficult large-scale preparation, etc., and achieve good stability, improve physical properties, and improve time-dependent effects
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[0037] Example 1
[0038] A graphene concrete, the preparation process is as follows:
[0039] S1. Prepare an aqueous graphene dispersion with a concentration of 0.6 g / L.
[0040] After mixing 2.6028 kg of graphite flakes and 0.5206 kg of surfactant sodium cholate with 208 kg of water, a high-shear mixer was used for peeling at 5000 rpm for 2 hours. After the peeling is completed, the obtained suspension is decanted to obtain a graphene dispersion with a concentration of 0.6 g / L.
[0041] S2. Add 365 kg of cement, 730 kg of silica sand, 1095 kg of crushed stone, and 208 kg of graphene aqueous dispersion into a forced mixer, and stir for 10 minutes to obtain a graphene concrete slurry. The cement uses 42.5R ordinary Portland cement. Silica sand is made by mixing quartz sand with three particle size ranges of (800~400)μm, (400~200)μm and (200~100)μm at a mass ratio of 1:0.286:0.114. The crushed stone includes two kinds of crushed stone particles of 5-10 mm and 10-16 mm; the mass frac...
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