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论文类型：期刊论文

发表时间：2008-07-01

发表刊物：CONSTRUCTION AND BUILDING MATERIALS

收录刊物：SCIE、EI

卷号：22

期号：7

页面范围：1462-1470

ISSN号：0950-0618

关键字：steel fibres; PP-fibres; fibre cocktail; FRSCHPC; workability; rheological behaviour; segregation resistance

摘要：The workability, the strength and the toughness are the significant factors for self-compacting-high performance concrete (SCHPC). The workability is a significant precondition for application of the Fibre Reinforced SCHPC. This paper presents research results on the workability of Monofibre and Fibre Cocktail (hybrid steel-polypropylene fibre), Reinforced SCHPC. Lots of mixtures made with steel fibres, PP-fibres and fibre cocktail of various dosages have been investigated. The mixtures were tested using various new methods for evaluating the flowability, filling ability and segregation risk of the fresh mortar/concrete. Based on the results of the workability, the suitable fibre types (steel fibres, PP-fibres and fibre cocktail) and the upper level of the fibre dosages for Fibre Reinforced SCHPC have been selected for study of the mechanical behaviour and the failure patterns in the next phase. (C) 2007 Elsevier Ltd. All rights reserved.