Nondestructive quality assessment of asphalt pavements based on dynamic modulus

被引：28
|
作者：
Lin, Shibin [1 ]
Ashlock, Jeramy C. [1 ]
Williams, R. Christopher [1 ]
机构：
[1] Iowa State Univ, Dept Civil Construct & Environm Engn, Ames, IA 50010 USA
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2016年 / 112卷
关键词：
Asphalt pavement; Quality control; Quality assurance; Dynamic modulus; Shear-wave velocity; Density; HOT-MIX ASPHALT; SURFACE-WAVES;
D O I：
10.1016/j.conbuildmat.2016.02.189
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Dynamic modulus has been recognized as an objective and sensitive material property for designing and evaluating pavement systems. To accurately measure the in situ elastic modulus (E = 2(1 + v)pV52) for nondestructive quality assessment of asphalt pavements, field measurements of density (p) via an electromagnetic gauge and shear -wave velocity (V5) via surface -wave testing were examined for four paving projects covering a range of mixes and traffic loads. A quality control/quality assurance (QC/QA) procedure was developed to correct the in situ moduli at different field temperatures to a common reference temperature using a fitting function from experimental data for QC and using master curves from laboratory dynamic modulus tests for QA. The corrected in situ moduli can then be compared against the maximum moduli for an assessment of the actual pavement performance. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：836 / 847
页数：12
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