|Table of Contents|

Molding method of super large stone asphalt mixture

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2012年04期
Page:
7-11
Research Field:
Publishing date:

Info

Title:
Molding method of super large stone asphalt mixture
Author(s):
JIANG Xiao-xia1; 2;  SHA Ai-min1
1. Key Laboratory for Special Area Highway Engineering of the Ministry of Education, Chang’an University, Xi’an 710064, Shaanxi, China; 2. Hongkong-Zhuhai-MacaoBridge Authority, Zhuhai 519015, Guangdong, China
Keywords:
road engineering;  super large stone mixture;  molding method;  compaction work;  voidage
PACS:
U414.1
DOI:
-
Abstract:
According to the characteristics of super large stone asphalt mixture, the superpave gyratory compaction(SGC)method, the big Marshall compaction method and the vibration compaction method were used to prepare the specimens and calculate the relevant parameters. The results indicate that the asphalt-aggregate ratio is the smallest with SGC method, the voidage with vibration compaction method is greater than the one with big Marshall compaction method, and the voidage with the big Marshall compaction method is greater than the one with SGC method. The vibration compaction method is prone to cause aggregate segregation and larger voidage content, and cannot form a skeleton dense structure by analyzing the molding effect for the super large stone asphalt mixture. In addition, under the same voidage, it is can be seen that the SGC method is the preferred method by comparing the compaction works with the other two compaction methods, it can decrease the compaction times and reduce energy consumption. 7 tabs, 3 figs, 6 refs.

References:

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Last Update: 2012-08-30