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采用掺入法将自制纳米TiO_2机械混晶体等量替换水泥制备C30混凝土,研究了混晶体不同掺量(0.5%、1%、1.5%、2%)对混凝土工作性能、抗压强度、劈裂强度、抗折强度的影响。建议在利用混晶体改善混凝土力学性能时,最佳掺量应控制在1.0%~1.5%。降解苯酚试验表明,混凝土降解率为16.1%。虽然掺入法能解决催化剂固定问题,但在保证混凝土力学性能的前提下,不能通过增加掺量的方法提高混凝土的光催化性能。
C30 concrete was prepared by mixing the same amount of self-made nano-TiO_2 mechanically mixed crystals with cement by mixing method. The effects of mixed crystal content (0.5%, 1%, 1.5%, 2%) on concrete performance, compressive strength, The effect of strength, flexural strength. Proposed mixed crystal to improve the mechanical properties of concrete, the optimal dosage should be controlled at 1.0% to 1.5%. Degradation of phenol test showed that the concrete degradation rate was 16.1%. Although the incorporation method can solve the problem of catalyst immobilization, it can not improve the photocatalytic performance of concrete by increasing the dosage, while ensuring the mechanical properties of concrete.