This paper describes the flexural characteristic of high strength steel fiber reinforced concrete (SFRC) prisms with different fiber tensile strength. All mixtures have specified compressive strength of 80 MPa and fiber volume fraction of 0.5% and 1.0%. In accordance with EN-14651, SFRC prisms were made and tested under bending loading. Test results indicated that steel fiber has no significant effects on compressive behavior of SFRC. However, flexural behavior of high strength SFRC was improved considerably with increase of fiber tensile strength.
This paper provides the flexural test results of steel fiber reinforced concrete (SFRC) prisms with different aspect ratios of steel fibers (60 and 67). All mixtures have specific compressive strength of 40 MPa and steel fiber volume fraction of 0.75%. According to ASTM C 1609 and EN-14651, SFRC prisms with 150×150×550 mm were made and tested under bending loading. Test results indicated that the aspect ratio of hooked-end steel fibers has insignificant effect on the first-cracking strength and flexural behavior of SFRC prisms.
This paper presents the flexural test results of steel fiber reinforced concrete (SFRC) prisms with different lengths of steel fibers. The specified compressive strength of SFRC is 40 MPa. Two types of steel fiber used in this study have lengths (0.5 and 0.9mm). Test results indicated that steel fibers with longer length is more effective to improve the flexural performance of concrete prisms than steel fibers with shorter length.
This paper provides the flexural test results of steel fiber reinforced concrete (SFRC) prisms with different aspect ratios of steel fibers (60 and 67). All mixtures have specific compressive strength of 40 MPa and steel fiber volume fraction of 0.75%. According to ASTM C 1609 and EN-14651, SFRC prisms with 150×150×550 mm were made and tested under bending loading. Test results indicated that the aspect ratio of hooked-end steel fibers has insignificant effect on the first-cracking strength and flexural behavior of SFRC prisms.
This paper presents the flexural test results of steel fiber reinforced concrete (SFRC) prisms with different lengths of steel fibers. The specified compressive strength of SFRC is 40 MPa. Two types of steel fiber used in this study have lengths (0.5 and 0.9mm). Test results indicated that steel fibers with longer length is more effective to improve the flexural performance of concrete prisms than steel fibers with shorter length.
The effects of maximum aggregate size on mechanical properties of high-strength steel fiber reinforced concrete (SFRC) were investigated in this work. Test main variable is maximum aggregate size (8 and 20mm). The cylinder specimens was casted for compressive test and the prism specimens was tested under four points loading. Test results indicated that the addition of steel fiber improves compressive and flexural behavior of high-strength concrete. Also smaller aggregate size improve mechanical properties of high fiber volume fraction SFRC.