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水工泄洪建筑物的冲磨破坏现象较为普遍,给国家带来巨大的经济损失,而当前的技术手段并不能有效解决问题,迫切需要新材料和新技术的产生和应用.本文主要采用圆环法和水下钢球法研究了超高性能纤维增强水泥基复合材料(UHPFRCC)的抗冲磨性能.结果表明:UHPFRCC可实现高流动度(扩展度可达690 mm)、超高强度(28 d抗压强度可达190 MPa)、超高抗冲磨强度(28 d抗冲磨强度可达C50混凝土的5.5倍).
The phenomenon of punching and sabotage of waterworks and flood-releasing structures is relatively common, which brings huge economic losses to the country, but the current technical means can not effectively solve the problems and urgently require the production and application of new materials and new technologies.In this paper, (UHPFRCC) was investigated by using the method and underwater steel ball method.The results show that UHPFRCC can achieve high fluidity (up to 690 mm), ultra-high strength (28% d compressive strength of up to 190 MPa), ultra-high abrasion strength (28 d abrasion strength up to 5.5 times C50 concrete).