engleski

Study on the properties of high performance fibre reinforced concrete

High performance fibre reinforced concrete (HPFRC) is material which contains very fine particles. Main principles for HPFRC producing were issued at the end of the last century. They recommend use of smaller aggregate grains. In most of cases maximum grain size of used aggregate is not higher than 1 mm. Currently, scientists and experts do not have shared opinions about required maximum aggregate grain size for HPFRC. In this paper influence of increasing of maximum aggregate grain size and selecting of curing method (water curing, heat treatment) on mechanical and durability properties of HPFRC is analyzed. Experimental part of research, in which a certain number of HPFRC mixes was made, is described. HPFRC mix components, used in experimental part of research, are all available on Croatian market. Furthermore, modern laboratory test methods, adjusted to HPFRC, were used. Test results indicate that it is possible to achieve ultra high compressive and tensile characteristics and exceptional durability of HPFRC by using of bigger maximum aggregate grain sizes.

high performace fibre reinforced concrete; mechanical properties; durability

nije evidentirano