A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Testing and performance of fiber-reinforced, self-consolidating concrete
Abstract The casting of fiber-reinforced concrete presents greater handling difficulty and requires more deliberate planning and workmanship than conventional concrete without fibers. The feasibility of producing fiber-reinforced, self-consolidating concrete (FR-SCC) that can be cast into place with minimum or no consolidation was investigated. Sixteen mixtures made with steel fibers measuring 38 mm in length used at dosages of 0, 0.5, and 1%, by volume, were investigated. The mixtures were prepared with various types of binary and ternary cementitious materials and W/CM of 0.37 to 0.45. The higher W/CM mixtures incorporated a viscosity-enhancing agent to reduce the risk of segregation. Concrete mixtures with slump flow consistencies of 650 and 530 mm were prepared, with the latter representing a highly flowable concrete that would require some consolidation. The characteristics of these mixtures were compared to those of a conventional fiber-reinforced concrete with a targeted slump consistency of 200 mm. The mixtures were tested for rheological parameters using a concrete viscometer, for restricted deformability using the filling capacity and V-funnel flow tests, as well as for compressive strength and flexural toughness. The paper evaluates the suitability of using the above workability tests to assess restricted deformability of FR-SCC and discusses the effect of fiber volume, mixture proportioning, and consistency on concrete properties.
Testing and performance of fiber-reinforced, self-consolidating concrete
Abstract The casting of fiber-reinforced concrete presents greater handling difficulty and requires more deliberate planning and workmanship than conventional concrete without fibers. The feasibility of producing fiber-reinforced, self-consolidating concrete (FR-SCC) that can be cast into place with minimum or no consolidation was investigated. Sixteen mixtures made with steel fibers measuring 38 mm in length used at dosages of 0, 0.5, and 1%, by volume, were investigated. The mixtures were prepared with various types of binary and ternary cementitious materials and W/CM of 0.37 to 0.45. The higher W/CM mixtures incorporated a viscosity-enhancing agent to reduce the risk of segregation. Concrete mixtures with slump flow consistencies of 650 and 530 mm were prepared, with the latter representing a highly flowable concrete that would require some consolidation. The characteristics of these mixtures were compared to those of a conventional fiber-reinforced concrete with a targeted slump consistency of 200 mm. The mixtures were tested for rheological parameters using a concrete viscometer, for restricted deformability using the filling capacity and V-funnel flow tests, as well as for compressive strength and flexural toughness. The paper evaluates the suitability of using the above workability tests to assess restricted deformability of FR-SCC and discusses the effect of fiber volume, mixture proportioning, and consistency on concrete properties.
Testing and performance of fiber-reinforced, self-consolidating concrete
Khayat, K. H. (author) / Roussel, Y. (author)
2000
Article (Journal)
English
Testing and performance of fiber-reinforced, self-consolidating concrete
| British Library Online Contents | 2000
Testing and performance of fiber-reinforced self-consolidating concrete
| British Library Conference Proceedings | 1999
Testing and performance of fiber-reinforced, self-consolidating concrete
| Springer Verlag | 2000
SCIENTIFIC REPORTS - Testing and performance of fiber-reinforced, self-consolidating concrete
| Online Contents | 2000