超高性能装饰混凝土的制备及性能

发布时间：2018-05-06 19:04

本文选题：超高性能装饰混凝土 + 强度　；参考：《土木工程与管理学报》2017年02期

【摘要】：本文研究了超高性能装饰混凝土UHPDC在不同养护方式和养护龄期下的力学性能。通过采用白色水泥、白色矿物掺合料,以及不同品种、不同掺量的纤维增强,制备出了超高性能装饰混凝土。研究表明掺入纤维之后,所制备出的超高性能混凝土具有早强、自密实等性能,其中MOSF2的1 d抗压强度最高可达74 MPa,抗弯强度最高可达16 MPa,此外,MOSF1经过28 d自然养护后,抗压和抗弯强度也可以达到174 MPa和21Mpa。UHPDC具有优异的力学性能,同时又兼具装饰性能。其成型后色泽亮白,表面光洁度高,且可塑性好,能制成结构复杂的产品,达到了满足结构与装饰要求的双重目的。
[Abstract]:In this paper, the mechanical properties of ultra high performance decorative concrete (UHPC) UHPDC under different curing modes and curing ages are studied. High performance decorative concrete was prepared by using white cement, white mineral admixture and fiber reinforced with different varieties and different amount of fiber. The results show that the ultra-high performance concrete prepared by adding fiber has the properties of early strength and self-compacting. The maximum compressive strength and bending strength of MOSF2 are 74 MPA and 16 MPA respectively. In addition, after 28 days of natural curing, the compressive strength of MOSF2 is up to 74 MPA and the flexural strength is up to 16 MPA. Compressive and flexural strength can also reach 174 MPa and 21Mpa.UHPDC with excellent mechanical properties as well as decorative properties. It has bright white color, high surface finish and good plasticity. It can be made into a product with complex structure and can meet the requirements of structure and decoration.
【作者单位】：南京理工大学材料科学与工程学院;
【基金】：国家自然科学基金(51278249,50808101) 中央高校基本科研业务费专项资金(AE16001)
【分类号】：TU528.38

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