Preparation of Ultra-High Performance Concrete with common technology and materials
Preparation of Ultra-High Performance Concrete with common technology and materials
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DOI：
10.1016/j.cemconcomp.2011.11.005
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发表时间：
2012-04-01
影响因子：
10.5
通讯作者：
Pu, Xincheng
中科院分区：
文献类型：
--
作者：
Wang, Chong;Yang, Changhui;Pu, Xincheng
混凝土技术的发展和对高强度建筑材料的需求推动了超高性能混凝土的发展。目前的UHPC制备方法需要昂贵的材料和相对复杂的技术。针对这些不足，本文重点研究了用普通原材料和普通工艺制备超高性能混凝土。研究了胶凝材料掺量、水胶比、矿渣掺量、石灰石粉掺量对混凝土流动性和抗压强度的影响。试验结果表明，高效减水剂和细矿物掺合料的加入使UHPC在极低的水胶比（0.14-0.18）下得到了良好的工作性能，其最大坍落度为268 mm，90 d抗压强度为175.8 MPa，365 d抗压强度为182.9 MPa。(C)2011爱思唯尔有限公司保留所有权利。
The technology development of concrete and demand for high strength construction materials give momentum to the development of Ultra-High Performance Concrete (UHPC). Current UHPC preparation methods require costly materials and relatively sophisticated technology. To overcome these weaknesses, this paper focused on the preparation of UHPC with common technology and ordinary raw materials. Influence of binder content, water/binder ratio, ground granulated blastfurnace slag (GGBS) content, and limestone powder (LP) replacement on fluidity and compressive strength of concrete were researched, respectively. The test results show that the addition of superplasticizer and fine mineral additives enabled the UHPC to be produced at an extremely low water/binder ratio of 0.14-0.18, achieving excellent workability with a maximum slump of 268 mm and compressive strengths of 175.8 MPa at 90 d and 182.9 MPa at 365 d. (C) 2011 Elsevier Ltd. All rights reserved.