|Table of Contents|

Elastic and noise reduction performance of light weight and high efficacy wood bituminous mixtures

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

Issue:
2012年04期
Page:
21-24，50
Research Field:
Publishing date:

Info

Title:
Elastic and noise reduction performance of light weight and high efficacy wood bituminous mixtures
Author(s):
LI Rui1;  LI Yan-wei2;  SHI Xin2;  WEN Yong1;  PEI Jian-zhong1;  YU Peng1
1. Key Laboratory for Special Area Highway Engineering of the Ministry of Education, Chang’an University, Xi’an 710064, Shaanxi, China; 2. Department of Transportation, Shijiazhuang City Government, Shijiazhuang 050051, Hebei, China
Keywords:
road engineering;  wood bituminous mixture;  mechanical property;  specific strength;  elastic property;  noise reduction performance
PACS:
U414.75
DOI:
-
Abstract:
To study the advantages of wood bituminous mixtures performance, the strain, stress, Poisson’s ratio, and specific strength were used to evaluate the mechanical properties of wood bituminous mixtures and stone bituminous mixtures. Meanwhile, GB rebounding coefficient and absorption coefficient of wood bituminous mixtures were investigated and compared with stone bituminous mixtures in elastic properties and noise reduction performance. The results show that the stress-strain curve of wood bituminous mixtures is gentle and exhibits flexible failure. The Poisson’s ratio and specific strength of wood bituminous mixtures are promoted from 60% to 80% and 10% to 20% respectively compared with stone bituminous mixtures. Furthermore, the GB rebounding coefficient and absorption coefficient of wood bituminous mixtures are from 1/9 to 1/2 and two times respectively of the ones of stone bituminous mixtures. Those show that the wood bituminous mixtures have excellent elastic properties and noise reduction performance. 6 tabs, 6 figs, 6 refs.

References:

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Last Update: 2012-08-30