Development of an analytical framework for evaluation of critical fiber length in asphalt concrete with a fiber pullout test

Hossein Noorvand; Barzin Mobasher; Shane Underwood; Kamil Kaloush

doi:10.1016/j.conbuildmat.2022.129561

Development of an analytical framework for evaluation of critical fiber length in asphalt concrete with a fiber pullout test

Hossein Noorvand, Barzin Mobasher, Shane Underwood, Kamil Kaloush

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The interfacial shear bond strength (τ) between fibers and matrix is typically measured by fiber pullout test to determine the critical fiber length (Lc) in fiber reinforced composites. In fiber reinforced asphalt concrete (FRAC), the τ is a time-dependent property and it is affected by asphalt modulus. The main objective of this study was to establish a relationship between the τ and modulus of asphalt mastic and asphalt concrete (AC), from which the Lc in AC was determined. Results from direct tension test, performed to validate the analytical framework, suggested that the use of longer fibers (38-mm vs 19-mm) showed higher reinforcement efficiency in FRAC.

Original language	English (US)
Article number	129561
Journal	Construction and Building Materials
Volume	360
DOIs	https://doi.org/10.1016/j.conbuildmat.2022.129561
State	Published - Dec 19 2022
Externally published	Yes

Keywords

Apparent modulus
Aramid fibers
Asphalt mastic and concrete
Critical fiber length
FRAC
Pullout test
Shear strength

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
General Materials Science

Access to Document

10.1016/j.conbuildmat.2022.129561

Cite this

@article{4d0f657d8ebf4884b6f77c584b506812,

title = "Development of an analytical framework for evaluation of critical fiber length in asphalt concrete with a fiber pullout test",

abstract = "The interfacial shear bond strength (τ) between fibers and matrix is typically measured by fiber pullout test to determine the critical fiber length (Lc) in fiber reinforced composites. In fiber reinforced asphalt concrete (FRAC), the τ is a time-dependent property and it is affected by asphalt modulus. The main objective of this study was to establish a relationship between the τ and modulus of asphalt mastic and asphalt concrete (AC), from which the Lc in AC was determined. Results from direct tension test, performed to validate the analytical framework, suggested that the use of longer fibers (38-mm vs 19-mm) showed higher reinforcement efficiency in FRAC.",

keywords = "Apparent modulus, Aramid fibers, Asphalt mastic and concrete, Critical fiber length, FRAC, Pullout test, Shear strength",

author = "Hossein Noorvand and Barzin Mobasher and Shane Underwood and Kamil Kaloush",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = dec,

day = "19",

doi = "10.1016/j.conbuildmat.2022.129561",

language = "English (US)",

volume = "360",

journal = "Construction and Building Materials",

issn = "0950-0618",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Development of an analytical framework for evaluation of critical fiber length in asphalt concrete with a fiber pullout test

AU - Noorvand, Hossein

AU - Mobasher, Barzin

AU - Underwood, Shane

AU - Kaloush, Kamil

PY - 2022/12/19

Y1 - 2022/12/19

N2 - The interfacial shear bond strength (τ) between fibers and matrix is typically measured by fiber pullout test to determine the critical fiber length (Lc) in fiber reinforced composites. In fiber reinforced asphalt concrete (FRAC), the τ is a time-dependent property and it is affected by asphalt modulus. The main objective of this study was to establish a relationship between the τ and modulus of asphalt mastic and asphalt concrete (AC), from which the Lc in AC was determined. Results from direct tension test, performed to validate the analytical framework, suggested that the use of longer fibers (38-mm vs 19-mm) showed higher reinforcement efficiency in FRAC.

AB - The interfacial shear bond strength (τ) between fibers and matrix is typically measured by fiber pullout test to determine the critical fiber length (Lc) in fiber reinforced composites. In fiber reinforced asphalt concrete (FRAC), the τ is a time-dependent property and it is affected by asphalt modulus. The main objective of this study was to establish a relationship between the τ and modulus of asphalt mastic and asphalt concrete (AC), from which the Lc in AC was determined. Results from direct tension test, performed to validate the analytical framework, suggested that the use of longer fibers (38-mm vs 19-mm) showed higher reinforcement efficiency in FRAC.

KW - Apparent modulus

KW - Aramid fibers

KW - Asphalt mastic and concrete

KW - Critical fiber length

KW - FRAC

KW - Pullout test

KW - Shear strength

UR - http://www.scopus.com/inward/record.url?scp=85141333773&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85141333773&partnerID=8YFLogxK

U2 - 10.1016/j.conbuildmat.2022.129561

DO - 10.1016/j.conbuildmat.2022.129561

M3 - Article

AN - SCOPUS:85141333773

SN - 0950-0618

VL - 360

JO - Construction and Building Materials

JF - Construction and Building Materials

M1 - 129561

ER -

Development of an analytical framework for evaluation of critical fiber length in asphalt concrete with a fiber pullout test

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this