Void Distribution in Zeolite Warm Mix Asphalt Mixture Based on X-ray Computed Tomography
Warm mix asphalt mixtures have the advantages of energy saving, emission reduction and good road performance. Zeolite asphalt mixtures, as a warm mixing technology, have been applied in the world. To understand the warm mix mechanism of zeolite warm mix asphalt mixture, the mesoscale structure of ze...
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doaj-bac64373f2a34f9e8284981e7ea064ab2020-11-24T21:33:23ZengMDPI AGMaterials1996-19442019-06-011212188810.3390/ma12121888ma12121888Void Distribution in Zeolite Warm Mix Asphalt Mixture Based on X-ray Computed TomographyJunda Ren0Chao Xing1Yiqiu Tan2Nan Liu3Jingyi Liu4Liying Yang5Liaoning Transportation Research Institute Co. Ltd., Key Laboratory of Transport Industry of Expressway Maintenance Technology, Shenyang 110000, ChinaSchool of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150000, ChinaSchool of Transportation Science and Engineering, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150000, ChinaLiaoning Transportation Research Institute Co. Ltd., Key Laboratory of Transport Industry of Expressway Maintenance Technology, Shenyang 110000, ChinaLiaoning Transportation Research Institute Co. Ltd., Key Laboratory of Transport Industry of Expressway Maintenance Technology, Shenyang 110000, ChinaBeijing Municipal Road & Bridge Building Material Group Co. Ltd., Beijing 100000, ChinaWarm mix asphalt mixtures have the advantages of energy saving, emission reduction and good road performance. Zeolite asphalt mixtures, as a warm mixing technology, have been applied in the world. To understand the warm mix mechanism of zeolite warm mix asphalt mixture, the mesoscale structure of zeolite asphalt is studied. Micro computed tomography (CT) is utilized to obtain the internal structure image of zeolite-modified asphalt and asphalt mixture. The quantity and volume of voids are used as internal void distribution evaluation indexes. The results indicate that with respect to the void distribution in zeolite-modified asphalt, with the increase of temperature, there is an obvious evolution trend of smaller voids to larger voids. With respect to the voids in the zeolite-modified asphalt mixture, the zeolite asphalt mixture is equivalent to hot mix asphalt mixture when it is above 120 °C, while below 120 °C, the maximum and average void volumes increase significantly, making it difficult for the mixture to achieve ideal compaction effect.https://www.mdpi.com/1996-1944/12/12/1888asphalt mixturewarm mixzeoliteCT methodvoid distribution |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Junda Ren Chao Xing Yiqiu Tan Nan Liu Jingyi Liu Liying Yang |
spellingShingle |
Junda Ren Chao Xing Yiqiu Tan Nan Liu Jingyi Liu Liying Yang Void Distribution in Zeolite Warm Mix Asphalt Mixture Based on X-ray Computed Tomography Materials asphalt mixture warm mix zeolite CT method void distribution |
author_facet |
Junda Ren Chao Xing Yiqiu Tan Nan Liu Jingyi Liu Liying Yang |
author_sort |
Junda Ren |
title |
Void Distribution in Zeolite Warm Mix Asphalt Mixture Based on X-ray Computed Tomography |
title_short |
Void Distribution in Zeolite Warm Mix Asphalt Mixture Based on X-ray Computed Tomography |
title_full |
Void Distribution in Zeolite Warm Mix Asphalt Mixture Based on X-ray Computed Tomography |
title_fullStr |
Void Distribution in Zeolite Warm Mix Asphalt Mixture Based on X-ray Computed Tomography |
title_full_unstemmed |
Void Distribution in Zeolite Warm Mix Asphalt Mixture Based on X-ray Computed Tomography |
title_sort |
void distribution in zeolite warm mix asphalt mixture based on x-ray computed tomography |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2019-06-01 |
description |
Warm mix asphalt mixtures have the advantages of energy saving, emission reduction and good road performance. Zeolite asphalt mixtures, as a warm mixing technology, have been applied in the world. To understand the warm mix mechanism of zeolite warm mix asphalt mixture, the mesoscale structure of zeolite asphalt is studied. Micro computed tomography (CT) is utilized to obtain the internal structure image of zeolite-modified asphalt and asphalt mixture. The quantity and volume of voids are used as internal void distribution evaluation indexes. The results indicate that with respect to the void distribution in zeolite-modified asphalt, with the increase of temperature, there is an obvious evolution trend of smaller voids to larger voids. With respect to the voids in the zeolite-modified asphalt mixture, the zeolite asphalt mixture is equivalent to hot mix asphalt mixture when it is above 120 °C, while below 120 °C, the maximum and average void volumes increase significantly, making it difficult for the mixture to achieve ideal compaction effect. |
topic |
asphalt mixture warm mix zeolite CT method void distribution |
url |
https://www.mdpi.com/1996-1944/12/12/1888 |
work_keys_str_mv |
AT jundaren voiddistributioninzeolitewarmmixasphaltmixturebasedonxraycomputedtomography AT chaoxing voiddistributioninzeolitewarmmixasphaltmixturebasedonxraycomputedtomography AT yiqiutan voiddistributioninzeolitewarmmixasphaltmixturebasedonxraycomputedtomography AT nanliu voiddistributioninzeolitewarmmixasphaltmixturebasedonxraycomputedtomography AT jingyiliu voiddistributioninzeolitewarmmixasphaltmixturebasedonxraycomputedtomography AT liyingyang voiddistributioninzeolitewarmmixasphaltmixturebasedonxraycomputedtomography |
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1725953473142325248 |