| 翟红侠,方伟,刘运林.基于装配式建筑设计超高性能混凝土
(UHPC)试验研究[J].安徽建筑大学学报,2019,27(1):42-45 |
| 基于装配式建筑设计超高性能混凝土
(UHPC)试验研究 |
| Experimental Study of Ultra-High Performance Concrete (UHPC) Basedon Fabricated Building Design |
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| DOI： |
| 中文关键词: 超高性能混凝土 正交试验 最优配合比 钢纤维 强度 |
| 英文关键词: UHPC orthogonal test optimal mixture ratio steel fiber strength |
| 基金项目:安徽高校自然科学研究项目(KJ2016A147) |
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| 中文摘要: |
| ：本文探究强度在150 MPa 以上的装配式墙体材料超高性能混凝土(简称UHPC)，分析常用矿物掺合料
和钢纤维等对UHPC 流动性及强度发展的影响，通过原材料优化选择、正交试验设计，寻求最佳配合比。结果
表明钢纤维掺量对UHPC 强度性能影响较大，随着钢纤维掺量的增加，硬化UHPC 的抗折、抗压强度都有显
著提升；在UHPC 新拌物流动性方面减水剂掺量起到重要作用；当硅灰掺量25%、石英粉掺量15%、水胶比
0.18 时，即可获得试验所需的抗压强度大于150 MPa、扩展度大于180 mm 的超高性能混凝土。 |
| 英文摘要: |
| In order to explore the fabricated wall material with strength over 150 MPa — ultra-high performance concrete
( UHPC for short )，the experiment analyzed the influence of common mineral admixtures and steel fiber on the
fluidity and strength development of UHPC through the selection of raw materials and orthogonal experimental design，
and sought the best mixture ratio. The results show that the steel fiber content has a great influence on UHPC ’s
strength properties，and with the increase of steel fiber content，the flexural strength and compressive strength of sclerotic
UHPC mix are significantly improved；The content of superplasticizer plays an important role in the fluidity of UHPC
fresh mix；When the silica fume content is 25 %，quartz powder content is 15%，and water-binder ratio is 0.18，UHPC
with compressive strength greater than 150 MPa and expansion degree greater than 180 mm can be obtained. |
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