TY - GEN
T1 - Tension stiffening behavior of self compacting high strength fiber reinforced concrete incorporating river gravels
AU - Silva, Marco Antonio
AU - Pepe, Marco
AU - Pfeil, Michele
AU - Mobasher, Barzin
AU - Toledo-Filho, Romildo Dias
N1 - Publisher Copyright:
© Springer International Publishing AG 2018.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2017
Y1 - 2017
N2 - This study proposes a comprehensive analysis on the structural performance of reinforced Self Compacting High Strength Fiber Reinforced Concrete members. Particularly, it summarizes the results of an experimental investigation aimed at analyzing the tension stiffening behavior of concrete mixtures produced with different kinds of natural aggregates: crushed granite and two types of amazon river gravels (derived from two different Brazilian regions). The mixtures were proportioned in order to achieve 60 MPa of compressive strength and, moreover, beyond three plain concrete mixtures, 35 mm length steel fibers were added to these mixtures, as spread reinforcing element, in volumetric fractions equal to 0.5% and 1.0%. The results derived from this type of test furnish a comprehensive analysis on the crack formation and propagation on concrete elements as well as distributed cracking mechanisms. The results indicate that the adherence between the steel bar and the concrete is not affected by the presence of the river gravels and that the fiber reinforcement controls crack width leading to a great number of cracks and, this effect is more pronounced for higher volume fractions.
AB - This study proposes a comprehensive analysis on the structural performance of reinforced Self Compacting High Strength Fiber Reinforced Concrete members. Particularly, it summarizes the results of an experimental investigation aimed at analyzing the tension stiffening behavior of concrete mixtures produced with different kinds of natural aggregates: crushed granite and two types of amazon river gravels (derived from two different Brazilian regions). The mixtures were proportioned in order to achieve 60 MPa of compressive strength and, moreover, beyond three plain concrete mixtures, 35 mm length steel fibers were added to these mixtures, as spread reinforcing element, in volumetric fractions equal to 0.5% and 1.0%. The results derived from this type of test furnish a comprehensive analysis on the crack formation and propagation on concrete elements as well as distributed cracking mechanisms. The results indicate that the adherence between the steel bar and the concrete is not affected by the presence of the river gravels and that the fiber reinforcement controls crack width leading to a great number of cracks and, this effect is more pronounced for higher volume fractions.
KW - Crack propagation
KW - High strength concrete
KW - Steel-concrete bond
KW - Tension stiffening
UR - http://www.scopus.com/inward/record.url?scp=85025611832&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85025611832&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-59471-2_48
DO - 10.1007/978-3-319-59471-2_48
M3 - Conference contribution
AN - SCOPUS:85025611832
T3 - High Tech Concrete: Where Technology and Engineering Meet - Proceedings of the 2017 fib Symposium
SP - 396
EP - 404
BT - High Tech Concrete
A2 - Hordijk, Dick A.
A2 - Lukovic, Mladena
PB - Springer International Publishing
T2 - 2017 fib Symposium - High Tech Concrete: Where Technology and Engineering Meet
Y2 - 12 June 2017 through 14 June 2017
ER -