TY - JOUR
T1 - Interfacial (Fiber-matrix) Properties of High-strength Mortar (150 MPa) from Fiber Pullout
AU - Shannag, M.J.
AU - Brincker, Rune
AU - Hansen, Will
PY - 1996
Y1 - 1996
N2 - The steel fiber-matrix properties of high-strength mortar (150 MPa), such as DSP (densified small particle), are obtained and compared to an ordinary strength mortar (40 MPa) using a specially designed fiber pullout apparatus. A new method for estimating the debonding energy of the interfacial zone from the experimental pullout curve is presented. The method is used to separate the areas under the pullout curve corresponding to debonding and friction. The predictions are compared to other methods in the literature. The proposed method seems to provide less variations in the results. The high-strength DSP mortar has significantly improved interfacial properties compared to ordinary strength mortar. These results are important in the understanding of the role of steel fibers in improving the tensile properties of high-strength, brittle, cement-matrix composites.
AB - The steel fiber-matrix properties of high-strength mortar (150 MPa), such as DSP (densified small particle), are obtained and compared to an ordinary strength mortar (40 MPa) using a specially designed fiber pullout apparatus. A new method for estimating the debonding energy of the interfacial zone from the experimental pullout curve is presented. The method is used to separate the areas under the pullout curve corresponding to debonding and friction. The predictions are compared to other methods in the literature. The proposed method seems to provide less variations in the results. The high-strength DSP mortar has significantly improved interfacial properties compared to ordinary strength mortar. These results are important in the understanding of the role of steel fibers in improving the tensile properties of high-strength, brittle, cement-matrix composites.
KW - Composite Materials
KW - Fiber Mortar Interfacial Properties
KW - Fiber Reinforced Concretes
KW - High-Strength Mortar
KW - Interfacial Fiber-matrix Properties
KW - Modeling Fiber Pullout
KW - Composite Materials
KW - Fiber Mortar Interfacial Properties
KW - Fiber Reinforced Concrete
KW - High-strength Mortar
KW - Interfacial Fiber-matrix Properties
KW - Modeling Fiber Pullout
M3 - Journal article
SN - 0889-325X
VL - 93
SP - 480
EP - 486
JO - ACI Materials Journal
JF - ACI Materials Journal
IS - 5
ER -