Effects of Nominal Maximum Aggregate Size on the Performance of Stone Matrix Asphalt

It is well known that the performance of hot mix asphalt (HMA) in service life is closely related to a proper aggregate gradation. A laboratory study was conducted to investigate the effects of nominal maximum aggregate size (NMAS) on the performance of stone matrix asphalt (SMA). The volumetric cha...

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Tác giả chính: Hongying Liu (Highway College, Chang’An University, Xi’an 710064, China), Peiwen Hao (Highway College, Chang’An University, Xi’an 710064, China), Jinzhi Xu (Highway College, Chang’An University, Xi’an 710064, China)
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Năm xuất bản: MDPI AG 2018
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Truy cập Trực tuyến:http://lrc.quangbinhuni.edu.vn:8181/dspace/handle/DHQB_123456789/4075
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spelling oai:localhost:DHQB_123456789-40752018-10-22T08:44:42Z Effects of Nominal Maximum Aggregate Size on the Performance of Stone Matrix Asphalt Applied Sciences Hongying Liu (Highway College, Chang’An University, Xi’an 710064, China) Peiwen Hao (Highway College, Chang’An University, Xi’an 710064, China) Jinzhi Xu (Highway College, Chang’An University, Xi’an 710064, China) Technology: Engineering (General). Civil engineering (General) Science: Biology (General) | Science: Physics Science: Chemistry It is well known that the performance of hot mix asphalt (HMA) in service life is closely related to a proper aggregate gradation. A laboratory study was conducted to investigate the effects of nominal maximum aggregate size (NMAS) on the performance of stone matrix asphalt (SMA). The volumetric characteristics and performance properties obtained from wheel tracking tests, permeability test, beam bending test, contabro test are compared for SMA mixes with different NMAS. The results indicated that voids in mineral aggregate (VMA) and voids filled with asphalt (VFA) of SMA mixtures increased with a decrease of aggregate size in aggregate gradation. SMA30 had the lowest optimum asphalt content among all the mixtures. Increase of NMAS contributed to improvement of the rutting resistance of SMA mixtures. However, a decrease of NMAS showed better cracking and raveling resistance. Permeability rate of SMA was primarily affected by the air voids (AV) and break point sieve, but was also sensitive to aggregate gradation to some extent, with reduced NMAS corresponding to less permeability rate. Based on the test results, SMA5 and SMA13 are suggested to be used as a water-proof layer in bridge deck pavement, and SMA20 and SMA30 are suggested to be used as binder course in asphalt pavement, which needs to possess superior rutting resistance at high temperature. 2018-09-11T08:50:25Z 2018-09-11T08:50:25Z 2017 Other http://lrc.quangbinhuni.edu.vn:8181/dspace/handle/DHQB_123456789/4075 MDPI AG
institution Trung tâm Học liệu Đại học Quảng Bình (Dspace)
collection Trung tâm Học liệu Đại học Quảng Bình (Dspace)
topic Technology: Engineering (General). Civil engineering (General)
Science: Biology (General) | Science: Physics
Science: Chemistry
spellingShingle Technology: Engineering (General). Civil engineering (General)
Science: Biology (General) | Science: Physics
Science: Chemistry
Hongying Liu (Highway College, Chang’An University, Xi’an 710064, China)
Peiwen Hao (Highway College, Chang’An University, Xi’an 710064, China)
Jinzhi Xu (Highway College, Chang’An University, Xi’an 710064, China)
Effects of Nominal Maximum Aggregate Size on the Performance of Stone Matrix Asphalt
description It is well known that the performance of hot mix asphalt (HMA) in service life is closely related to a proper aggregate gradation. A laboratory study was conducted to investigate the effects of nominal maximum aggregate size (NMAS) on the performance of stone matrix asphalt (SMA). The volumetric characteristics and performance properties obtained from wheel tracking tests, permeability test, beam bending test, contabro test are compared for SMA mixes with different NMAS. The results indicated that voids in mineral aggregate (VMA) and voids filled with asphalt (VFA) of SMA mixtures increased with a decrease of aggregate size in aggregate gradation. SMA30 had the lowest optimum asphalt content among all the mixtures. Increase of NMAS contributed to improvement of the rutting resistance of SMA mixtures. However, a decrease of NMAS showed better cracking and raveling resistance. Permeability rate of SMA was primarily affected by the air voids (AV) and break point sieve, but was also sensitive to aggregate gradation to some extent, with reduced NMAS corresponding to less permeability rate. Based on the test results, SMA5 and SMA13 are suggested to be used as a water-proof layer in bridge deck pavement, and SMA20 and SMA30 are suggested to be used as binder course in asphalt pavement, which needs to possess superior rutting resistance at high temperature.
format Other
author Hongying Liu (Highway College, Chang’An University, Xi’an 710064, China)
Peiwen Hao (Highway College, Chang’An University, Xi’an 710064, China)
Jinzhi Xu (Highway College, Chang’An University, Xi’an 710064, China)
author_facet Hongying Liu (Highway College, Chang’An University, Xi’an 710064, China)
Peiwen Hao (Highway College, Chang’An University, Xi’an 710064, China)
Jinzhi Xu (Highway College, Chang’An University, Xi’an 710064, China)
author_sort Hongying Liu (Highway College, Chang’An University, Xi’an 710064, China)
title Effects of Nominal Maximum Aggregate Size on the Performance of Stone Matrix Asphalt
title_short Effects of Nominal Maximum Aggregate Size on the Performance of Stone Matrix Asphalt
title_full Effects of Nominal Maximum Aggregate Size on the Performance of Stone Matrix Asphalt
title_fullStr Effects of Nominal Maximum Aggregate Size on the Performance of Stone Matrix Asphalt
title_full_unstemmed Effects of Nominal Maximum Aggregate Size on the Performance of Stone Matrix Asphalt
title_sort effects of nominal maximum aggregate size on the performance of stone matrix asphalt
publisher MDPI AG
publishDate 2018
url http://lrc.quangbinhuni.edu.vn:8181/dspace/handle/DHQB_123456789/4075
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score 9,463379