UHPC decorative concrete and preparation method thereof

The invention relates to the technical field of concrete, and provides UHPC (Ultra High Performance Concrete) decorative concrete and a preparation method thereof. The UHPC decorative concrete is prepared from the following components in parts by weight: 800 to 1200 parts of sand, 900 to 1200 parts of broken stone, 250 to 350 parts of cement, 120 to 150 parts of water, 60 to 80 parts of fly ash, 10 to 20 parts of a water reducing agent, 10 to 15 parts of polyvinyl alcohol fiber and 15 to 25 parts of 4, 4 '-diaminodiphenyl sulfone modified carbon nanotubes. Through the technical scheme, the problems of poor crack resistance and low strength of concrete in the prior art are solved. 本发明涉及混凝土技术领域，提出了一种UHPC装饰混凝土及其制备方法。所述一种UHPC装饰混凝土，包括以下重量份数的组分：砂子800～1200份、碎石900～1200份、水泥250～350份、水120～150份、粉煤灰60～80份、减水剂10～20份、聚乙烯醇纤维10～15份、4,4'-二氨基二苯砜改性碳纳米管15～25份。通过上述技术方案，解决了现有技术中的混凝土抗裂性能差、强度低问题。