Laboratory evaluation of hot-mix asphalt concrete containing copper slag aggregate

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

This paper reports a laboratory study investigating the use of granulated copper slag as a fine aggregate in hot-mix asphalt concrete. Marshall-mix design was performed on different blends of aggregate containing up to 40% copper slag. The dynamic modulus |E| test, as a primary material property input in the Mechanistic-Empirical Pavement Design Guide (ME-PDG), was conducted at different frequencies (0.1 to 16 Hz) and temperatures (25 to 60°C). |E*| master curves and shift factors were developed for the control and slag mixes. The developed curves were compared with the Witczak predictive |E*| model for Levels 2 and 3 of the ME-PDG. The results indicated strength reduction as slag content increases in the mixes compared to the control mix. The developed master curves and shift factors were compared with the Witczak predictive model. The results of stripping potential evaluated by the indirect tensile strength indicated a reduction in strength, but the tensile-strength ratio was superior to that of the control mix. The results indicated a good potential for using copper slag as an aggregate in asphalt mixes and provided the essential material haracterization for using the material in the ME-PDG method.

Original languageEnglish
Pages (from-to)879-885
Number of pages7
JournalJournal of Materials in Civil Engineering
Volume23
Issue number6
DOIs
Publication statusPublished - Jun 13 2011

Fingerprint

Asphalt concrete
Slags
Copper
Pavements
asphalt
Tensile strength
Asphalt
Materials properties
Temperature

Keywords

  • Asphalt mix
  • Copper slag
  • Dynamic modulus
  • ME-PDG
  • Tensile strength

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials
  • Building and Construction
  • Materials Science(all)

Cite this

@article{e249a8ebf0324fe1849c683a28558c90,
title = "Laboratory evaluation of hot-mix asphalt concrete containing copper slag aggregate",
abstract = "This paper reports a laboratory study investigating the use of granulated copper slag as a fine aggregate in hot-mix asphalt concrete. Marshall-mix design was performed on different blends of aggregate containing up to 40{\%} copper slag. The dynamic modulus |E| test, as a primary material property input in the Mechanistic-Empirical Pavement Design Guide (ME-PDG), was conducted at different frequencies (0.1 to 16 Hz) and temperatures (25 to 60°C). |E*| master curves and shift factors were developed for the control and slag mixes. The developed curves were compared with the Witczak predictive |E*| model for Levels 2 and 3 of the ME-PDG. The results indicated strength reduction as slag content increases in the mixes compared to the control mix. The developed master curves and shift factors were compared with the Witczak predictive model. The results of stripping potential evaluated by the indirect tensile strength indicated a reduction in strength, but the tensile-strength ratio was superior to that of the control mix. The results indicated a good potential for using copper slag as an aggregate in asphalt mixes and provided the essential material haracterization for using the material in the ME-PDG method.",
keywords = "Asphalt mix, Copper slag, Dynamic modulus, ME-PDG, Tensile strength",
author = "Hassan, {Hossam F.} and Khalifa Al-Jabri",
year = "2011",
month = "6",
day = "13",
doi = "10.1061/(ASCE)MT.1943-5533.0000246",
language = "English",
volume = "23",
pages = "879--885",
journal = "Journal of Materials in Civil Engineering",
issn = "0899-1561",
publisher = "American Society of Civil Engineers (ASCE)",
number = "6",

}

TY - JOUR

T1 - Laboratory evaluation of hot-mix asphalt concrete containing copper slag aggregate

AU - Hassan, Hossam F.

AU - Al-Jabri, Khalifa

PY - 2011/6/13

Y1 - 2011/6/13

N2 - This paper reports a laboratory study investigating the use of granulated copper slag as a fine aggregate in hot-mix asphalt concrete. Marshall-mix design was performed on different blends of aggregate containing up to 40% copper slag. The dynamic modulus |E| test, as a primary material property input in the Mechanistic-Empirical Pavement Design Guide (ME-PDG), was conducted at different frequencies (0.1 to 16 Hz) and temperatures (25 to 60°C). |E*| master curves and shift factors were developed for the control and slag mixes. The developed curves were compared with the Witczak predictive |E*| model for Levels 2 and 3 of the ME-PDG. The results indicated strength reduction as slag content increases in the mixes compared to the control mix. The developed master curves and shift factors were compared with the Witczak predictive model. The results of stripping potential evaluated by the indirect tensile strength indicated a reduction in strength, but the tensile-strength ratio was superior to that of the control mix. The results indicated a good potential for using copper slag as an aggregate in asphalt mixes and provided the essential material haracterization for using the material in the ME-PDG method.

AB - This paper reports a laboratory study investigating the use of granulated copper slag as a fine aggregate in hot-mix asphalt concrete. Marshall-mix design was performed on different blends of aggregate containing up to 40% copper slag. The dynamic modulus |E| test, as a primary material property input in the Mechanistic-Empirical Pavement Design Guide (ME-PDG), was conducted at different frequencies (0.1 to 16 Hz) and temperatures (25 to 60°C). |E*| master curves and shift factors were developed for the control and slag mixes. The developed curves were compared with the Witczak predictive |E*| model for Levels 2 and 3 of the ME-PDG. The results indicated strength reduction as slag content increases in the mixes compared to the control mix. The developed master curves and shift factors were compared with the Witczak predictive model. The results of stripping potential evaluated by the indirect tensile strength indicated a reduction in strength, but the tensile-strength ratio was superior to that of the control mix. The results indicated a good potential for using copper slag as an aggregate in asphalt mixes and provided the essential material haracterization for using the material in the ME-PDG method.

KW - Asphalt mix

KW - Copper slag

KW - Dynamic modulus

KW - ME-PDG

KW - Tensile strength

UR - http://www.scopus.com/inward/record.url?scp=79958703114&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79958703114&partnerID=8YFLogxK

U2 - 10.1061/(ASCE)MT.1943-5533.0000246

DO - 10.1061/(ASCE)MT.1943-5533.0000246

M3 - Article

AN - SCOPUS:79958703114

VL - 23

SP - 879

EP - 885

JO - Journal of Materials in Civil Engineering

JF - Journal of Materials in Civil Engineering

SN - 0899-1561

IS - 6

ER -