Improving pavement friction through aggregate blending

M. Al Assi; E. Kassem; R. B. Kogbara; E. A. Masad

Improving pavement friction through aggregate blending

M. Al Assi, E. Kassem, R. B. Kogbara, E. A. Masad

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Maintaining adequate level of skid resistance on highways is essential for the safety of motorists. Among other factors, skid resistance of asphalt pavements depends on aggregate shape characteristics and its resistance to abrasion and polishing. This study investigated the effect of aggregate blending on improving the frictional characteristics of asphalt pavements. Test slabs prepared using different blends of limestone and gabbro were subjected to accelerated polishing. Gabbro is known to have better resistance to abrasion and polishing compared to limestone. A dynamic friction tester was used to measure the coefficient of friction at different polishing cycles; in addition, the macrotexture was measured using a sand patch test. The results showed that blending gabbro with limestone would improve the frictional characteristics of asphalt mixtures compared to the control mix prepared with only limestone. Based on the findings of this study, a blend of 50% gabbro and 50% limestone would provide comparable skid resistance and cut down the amount of gabbro imported for road construction leading to cost savings and maximizing the use of natural resources in Qatar. Meanwhile, the researchers recommend constructing trial test sites and monitoring their frictional characteristics alongside evaluating the mechanical properties of the proposed blend to ensure durability.

Original language	English
Title of host publication	Advances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018
Editors	Eyad Masad, Ilaria Menapace, Amit Bhasin, Tom Scarpas, Anupam Kumar
Publisher	CRC Press/Balkema
Pages	277-280
Number of pages	4
ISBN (Print)	9781138313095
Publication status	Published - 2018
Externally published	Yes
Event	International Conference on Advances in Materials and Pavement Performance Prediction, AM3P 2018 - Doha, Qatar Duration: 16 Apr 2018 → 18 Apr 2018

Publication series

Name	Advances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018

Conference

Conference	International Conference on Advances in Materials and Pavement Performance Prediction, AM3P 2018
Country/Territory	Qatar
City	Doha
Period	16/04/18 → 18/04/18

Cite this

Al Assi, M., Kassem, E., Kogbara, R. B., & Masad, E. A. (2018). Improving pavement friction through aggregate blending. In E. Masad, I. Menapace, A. Bhasin, T. Scarpas, & A. Kumar (Eds.), Advances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018 (pp. 277-280). (Advances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018). CRC Press/Balkema.

Al Assi, M. ; Kassem, E. ; Kogbara, R. B. et al. / Improving pavement friction through aggregate blending. Advances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018. editor / Eyad Masad ; Ilaria Menapace ; Amit Bhasin ; Tom Scarpas ; Anupam Kumar. CRC Press/Balkema, 2018. pp. 277-280 (Advances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018).

@inproceedings{f460da9024d64efbbe29b883c5d8375a,

title = "Improving pavement friction through aggregate blending",

abstract = "Maintaining adequate level of skid resistance on highways is essential for the safety of motorists. Among other factors, skid resistance of asphalt pavements depends on aggregate shape characteristics and its resistance to abrasion and polishing. This study investigated the effect of aggregate blending on improving the frictional characteristics of asphalt pavements. Test slabs prepared using different blends of limestone and gabbro were subjected to accelerated polishing. Gabbro is known to have better resistance to abrasion and polishing compared to limestone. A dynamic friction tester was used to measure the coefficient of friction at different polishing cycles; in addition, the macrotexture was measured using a sand patch test. The results showed that blending gabbro with limestone would improve the frictional characteristics of asphalt mixtures compared to the control mix prepared with only limestone. Based on the findings of this study, a blend of 50% gabbro and 50% limestone would provide comparable skid resistance and cut down the amount of gabbro imported for road construction leading to cost savings and maximizing the use of natural resources in Qatar. Meanwhile, the researchers recommend constructing trial test sites and monitoring their frictional characteristics alongside evaluating the mechanical properties of the proposed blend to ensure durability.",

author = "{Al Assi}, M. and E. Kassem and Kogbara, {R. B.} and Masad, {E. A.}",

note = "Publisher Copyright: {\textcopyright} 2018 Taylor & Francis Group, London.; International Conference on Advances in Materials and Pavement Performance Prediction, AM3P 2018 ; Conference date: 16-04-2018 Through 18-04-2018",

year = "2018",

language = "English",

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series = "Advances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018",

publisher = "CRC Press/Balkema",

pages = "277--280",

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booktitle = "Advances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018",

}

Al Assi, M, Kassem, E, Kogbara, RB & Masad, EA 2018, Improving pavement friction through aggregate blending. in E Masad, I Menapace, A Bhasin, T Scarpas & A Kumar (eds), Advances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018. Advances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018, CRC Press/Balkema, pp. 277-280, International Conference on Advances in Materials and Pavement Performance Prediction, AM3P 2018, Doha, Qatar, 16/04/18.

Improving pavement friction through aggregate blending. / Al Assi, M.; Kassem, E.; Kogbara, R. B. et al.
Advances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018. ed. / Eyad Masad; Ilaria Menapace; Amit Bhasin; Tom Scarpas; Anupam Kumar. CRC Press/Balkema, 2018. p. 277-280 (Advances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Improving pavement friction through aggregate blending

AU - Al Assi, M.

AU - Kassem, E.

AU - Kogbara, R. B.

AU - Masad, E. A.

PY - 2018

Y1 - 2018

N2 - Maintaining adequate level of skid resistance on highways is essential for the safety of motorists. Among other factors, skid resistance of asphalt pavements depends on aggregate shape characteristics and its resistance to abrasion and polishing. This study investigated the effect of aggregate blending on improving the frictional characteristics of asphalt pavements. Test slabs prepared using different blends of limestone and gabbro were subjected to accelerated polishing. Gabbro is known to have better resistance to abrasion and polishing compared to limestone. A dynamic friction tester was used to measure the coefficient of friction at different polishing cycles; in addition, the macrotexture was measured using a sand patch test. The results showed that blending gabbro with limestone would improve the frictional characteristics of asphalt mixtures compared to the control mix prepared with only limestone. Based on the findings of this study, a blend of 50% gabbro and 50% limestone would provide comparable skid resistance and cut down the amount of gabbro imported for road construction leading to cost savings and maximizing the use of natural resources in Qatar. Meanwhile, the researchers recommend constructing trial test sites and monitoring their frictional characteristics alongside evaluating the mechanical properties of the proposed blend to ensure durability.

AB - Maintaining adequate level of skid resistance on highways is essential for the safety of motorists. Among other factors, skid resistance of asphalt pavements depends on aggregate shape characteristics and its resistance to abrasion and polishing. This study investigated the effect of aggregate blending on improving the frictional characteristics of asphalt pavements. Test slabs prepared using different blends of limestone and gabbro were subjected to accelerated polishing. Gabbro is known to have better resistance to abrasion and polishing compared to limestone. A dynamic friction tester was used to measure the coefficient of friction at different polishing cycles; in addition, the macrotexture was measured using a sand patch test. The results showed that blending gabbro with limestone would improve the frictional characteristics of asphalt mixtures compared to the control mix prepared with only limestone. Based on the findings of this study, a blend of 50% gabbro and 50% limestone would provide comparable skid resistance and cut down the amount of gabbro imported for road construction leading to cost savings and maximizing the use of natural resources in Qatar. Meanwhile, the researchers recommend constructing trial test sites and monitoring their frictional characteristics alongside evaluating the mechanical properties of the proposed blend to ensure durability.

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M3 - Conference contribution

AN - SCOPUS:85061279084

SN - 9781138313095

T3 - Advances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018

SP - 277

EP - 280

BT - Advances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018

A2 - Masad, Eyad

A2 - Menapace, Ilaria

A2 - Bhasin, Amit

A2 - Scarpas, Tom

A2 - Kumar, Anupam

PB - CRC Press/Balkema

T2 - International Conference on Advances in Materials and Pavement Performance Prediction, AM3P 2018

Y2 - 16 April 2018 through 18 April 2018

ER -

Al Assi M, Kassem E, Kogbara RB, Masad EA. Improving pavement friction through aggregate blending. In Masad E, Menapace I, Bhasin A, Scarpas T, Kumar A, editors, Advances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018. CRC Press/Balkema. 2018. p. 277-280. (Advances in Materials and Pavement Performance Prediction - Proceedings of the International AM3P Conference, 2018).

Improving pavement friction through aggregate blending

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