TY - JOUR
T1 - Mechanical Properties of Steel Fiber-Reinforced Self-Consolidating Controlled Low-Strength Material for Pavement Base Layers
AU - Okuyucu, Osman
AU - Jayawickrama, Priyantha
AU - Senadheera, Sanjaya
N1 - Publisher Copyright:
© 2019 American Society of Civil Engineers.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019/9/1
Y1 - 2019/9/1
N2 - A material selected for pavement base layers must possess the structural capacity to withstand stresses and strains caused by vehicle loading and environmental factors. Self-consolidating base material (SCBM) is a variant of controlled low-strength material (CLSM), and it typically uses fine aggregate, pozzolanic material, portland cement, and water. This paper presents findings from research that evaluated mechanical properties and constructability of SCBM and how the addition of steel fiber reinforcement can influence them. The experimental plan included mixes containing no steel fiber (control mix), three steel fiber contents, and two fine aggregate types. The material properties and constructability were assessed based on flowability, compressive strength, indirect tensile strength, and shrinkage. The results show that the addition of steel fiber enhances compressive and indirect tensile strength and reduces shrinkage while maintaining good constructability. Based on findings from the laboratory test program, SCBM was used to construct industry-scale outdoor test sections, and experience gained from the construction process is also discussed in this paper.
AB - A material selected for pavement base layers must possess the structural capacity to withstand stresses and strains caused by vehicle loading and environmental factors. Self-consolidating base material (SCBM) is a variant of controlled low-strength material (CLSM), and it typically uses fine aggregate, pozzolanic material, portland cement, and water. This paper presents findings from research that evaluated mechanical properties and constructability of SCBM and how the addition of steel fiber reinforcement can influence them. The experimental plan included mixes containing no steel fiber (control mix), three steel fiber contents, and two fine aggregate types. The material properties and constructability were assessed based on flowability, compressive strength, indirect tensile strength, and shrinkage. The results show that the addition of steel fiber enhances compressive and indirect tensile strength and reduces shrinkage while maintaining good constructability. Based on findings from the laboratory test program, SCBM was used to construct industry-scale outdoor test sections, and experience gained from the construction process is also discussed in this paper.
KW - Controlled low-strength material (CLSM)
KW - Fine aggregate
KW - Flowability
KW - Self-consolidating base material (SCBM)
KW - Shrinkage
KW - Steel fiber
KW - Strength
UR - http://www.scopus.com/inward/record.url?scp=85067399724&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)MT.1943-5533.0002816
DO - 10.1061/(ASCE)MT.1943-5533.0002816
M3 - Article
AN - SCOPUS:85067399724
VL - 31
JO - Journal of Materials in Civil Engineering
JF - Journal of Materials in Civil Engineering
SN - 0899-1561
IS - 9
M1 - 04019177
ER -