Development of a composite substrate peel test to assess moisture sensitivity of aggregate–bitumen bonds

This paper presents the development of a suitable procedure to prepare peel test specimens using coarse aggregates and compare the results with the established standard peel test. The newly developed composite substrate peel test (CSPT) was found to be effective in characterising the moisture sensit...

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Main Authors: Zhang, Jizhe, Airey, Gordon D., Grenfell, James, Apeagyei, Alex K., Barrett, Martyn
Format: Article
Published: Elsevier 2016
Subjects:
Online Access:https://eprints.nottingham.ac.uk/41351/
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author Zhang, Jizhe
Airey, Gordon D.
Grenfell, James
Apeagyei, Alex K.
Barrett, Martyn
author_facet Zhang, Jizhe
Airey, Gordon D.
Grenfell, James
Apeagyei, Alex K.
Barrett, Martyn
author_sort Zhang, Jizhe
building Nottingham Research Data Repository
collection Online Access
description This paper presents the development of a suitable procedure to prepare peel test specimens using coarse aggregates and compare the results with the established standard peel test. The newly developed composite substrate peel test (CSPT) was found to be effective in characterising the moisture sensitivity of the aggregate–bitumen bond and the results correlated well with the results from a standard peel test. The results from the CSPT and the standard peel test showed that the fracture energy after moisture damage was found to be aggregate type dependent. Limestone tends to have better resistance to moisture damage than granite when moisture adsorptions are similar. Furthermore, in terms of similar aggregates, lower moisture adsorption results in better moisture resistance. This phenomenon suggests that in a moisture susceptible asphalt mixture, the effect of aggregate may be more influential than the effect of bitumen. Strong correlations were found between the standard peel test and the CSPT in terms of moisture damage evaluation and suggest that the CSPT maybe a more practical procedure to test the aggregate–bitumen bond for actual aggregates used in asphalt mixtures.
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spelling nottingham-413512020-05-04T17:54:20Z https://eprints.nottingham.ac.uk/41351/ Development of a composite substrate peel test to assess moisture sensitivity of aggregate–bitumen bonds Zhang, Jizhe Airey, Gordon D. Grenfell, James Apeagyei, Alex K. Barrett, Martyn This paper presents the development of a suitable procedure to prepare peel test specimens using coarse aggregates and compare the results with the established standard peel test. The newly developed composite substrate peel test (CSPT) was found to be effective in characterising the moisture sensitivity of the aggregate–bitumen bond and the results correlated well with the results from a standard peel test. The results from the CSPT and the standard peel test showed that the fracture energy after moisture damage was found to be aggregate type dependent. Limestone tends to have better resistance to moisture damage than granite when moisture adsorptions are similar. Furthermore, in terms of similar aggregates, lower moisture adsorption results in better moisture resistance. This phenomenon suggests that in a moisture susceptible asphalt mixture, the effect of aggregate may be more influential than the effect of bitumen. Strong correlations were found between the standard peel test and the CSPT in terms of moisture damage evaluation and suggest that the CSPT maybe a more practical procedure to test the aggregate–bitumen bond for actual aggregates used in asphalt mixtures. Elsevier 2016-07-01 Article PeerReviewed Zhang, Jizhe, Airey, Gordon D., Grenfell, James, Apeagyei, Alex K. and Barrett, Martyn (2016) Development of a composite substrate peel test to assess moisture sensitivity of aggregate–bitumen bonds. International Journal of Adhesion and Adhesives, 68 . pp. 133-141. ISSN 0143-7496 Peel test; Bitumen; Aggregate; Moisture damage; CSPT http://www.sciencedirect.com/science/article/pii/S0143749616300380 doi:10.1016/j.ijadhadh.2016.02.013 doi:10.1016/j.ijadhadh.2016.02.013
spellingShingle Peel test; Bitumen; Aggregate; Moisture damage; CSPT
Zhang, Jizhe
Airey, Gordon D.
Grenfell, James
Apeagyei, Alex K.
Barrett, Martyn
Development of a composite substrate peel test to assess moisture sensitivity of aggregate–bitumen bonds
title Development of a composite substrate peel test to assess moisture sensitivity of aggregate–bitumen bonds
title_full Development of a composite substrate peel test to assess moisture sensitivity of aggregate–bitumen bonds
title_fullStr Development of a composite substrate peel test to assess moisture sensitivity of aggregate–bitumen bonds
title_full_unstemmed Development of a composite substrate peel test to assess moisture sensitivity of aggregate–bitumen bonds
title_short Development of a composite substrate peel test to assess moisture sensitivity of aggregate–bitumen bonds
title_sort development of a composite substrate peel test to assess moisture sensitivity of aggregate–bitumen bonds
topic Peel test; Bitumen; Aggregate; Moisture damage; CSPT
url https://eprints.nottingham.ac.uk/41351/
https://eprints.nottingham.ac.uk/41351/
https://eprints.nottingham.ac.uk/41351/