Warm Mix Asphalt Technology Applied at Low Air Temperature in China

Autor:	Jinhai Yan, Qunle Du, Wenyuan Huang, Zhuohui Tao
Rok vydání:	2009
Předmět:	Asphalt concrete Materials science Asphalt pavement Asphalt business.industry Air temperature Thermometer Compaction Air voids Composite material Atmospheric temperature range business Civil and Structural Engineering
Zdroj:	Road Materials and Pavement Design. 10:337-347
ISSN:	2164-7402 1468-0629
DOI:	10.1080/14680629.2009.9690250
Popis:	Hot mix asphalt could not be compacted easily during construction at low air temperature because the mixture temperature will decrease sharply. With the characteristics of Evotherm warm mix asphalt technology introduced, the available compaction temperature range could be obtained by testing air voids of Evotherm warm asphalt mixture and HMA at different levels of temperature. Compared to HMA, WMA could prolong the compaction time due to a wider compaction temperature range and be compacted more easily at low air temperature. The AC-13 warm asphalt concrete test road was paved at low air temperature after the laboratory performances of mixture was evaluated. In addition, the temperature vs. time curve of Evotherm warm asphalt mixture was derived theoretically by Pavecool® software in advance. The field temperature vs. time curve was also tested by thermometer at specific position during construction, which can guide the compaction occasion of the Evotherm warm mixture. The field performances of t...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3487fa077df8a44fe5fe56e0c2346b8a https://doi.org/10.1080/14680629.2009.9690250 Zobrazit plný text záznamu