Flexural Fracture Toughness and First-Crack Strength Tests of Steel Fiber-Silica Fume Concrete and Its Engineering Applications

The effect of a steel fiber and silica fume on the first-crack strength and the flexural toughness of concrete is evaluated. The ten sets of specimens with a steel fiber content of 0, 40, 50, and 60 g/m 3 and steel fiber types of wave shear and straight shear types with and without a silica fume con...

Full description

Saved in:
Bibliographic Details
Published in:Strength of materials 2018, Vol.50 (1), p.166-175
Main Authors: Zhang, J. P., Liu, L. M., Zhu, Z. D., Zhang, F. T., Cao, J. Z.
Format: Article
Language:English
Subjects:
Anchors
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Concrete
Concretes
Flexural strength
Fracture toughness
Materials Science
Silica fume
Silicon dioxide
Solid Mechanics
Sprayed concrete
Steel fibers
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effect of a steel fiber and silica fume on the first-crack strength and the flexural toughness of concrete is evaluated. The ten sets of specimens with a steel fiber content of 0, 40, 50, and 60 g/m 3 and steel fiber types of wave shear and straight shear types with and without a silica fume content of a 10% replacement of the cement weight were tested. The results show that the combined effect of silica fume and steel fiber improve the first-crack load and deflection of specimens to a certain degree and increase the flexural fracture toughness of specimens greatly. In the strengthening effect of steel fiber silica fume concrete, the steel fiber is of first importance, while silica fume is an auxiliary component. The wet steel fiber-silica fume shotcrete support for controlling the surrounding rock mass can provide the whole supporting effect of the anchor mesh shotcrete.
ISSN:0039-2316
1573-9325
DOI:10.1007/s11223-018-9956-y