The use of steel fibre reinforced concrete for civil engineering shafts and mine shaft

摘要

Multiple research studies and tests on the behaviour of steel fiber reinforced concrete have been carried out in recent years in various countries. They have greatly contributed to a better characterization of Steel Fibre Reinforced Concrete (SFRC), and have thus allowed to gain a better understanding of the behaviour of this material and to specify minimum performance requirements for each project. This article will present the material property determination using standardized testing methods and some improvement in the test procedure for sprayed concrete in order to: 1. obtain a mechanical property to be used as input for the dimensioning method 2. be in line with International recommendation as model code 2010 edited by fib Indeed the use of SFRC in deep shaft required a good knowledge about materials properties taking in account in the design.