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Title:

Evaluation of Transverse-Cracked Semirigid Pavement Based on Morphological Parameter of Deflection Basin Crossing Crack

Accession Number:

01592564

Record Type:

Component

Abstract:

Cracking distress is common on semi-rigid pavement and transverse cracking occupies the overwhelming majority of entire crack occurrence. In order to evaluate the transverse-cracked semi-rigid pavement by falling weight deflectometer (FWD), three-dimensional (3D) dynamic finite element (FE) models were created to analyze pavement deflection response under FWD load. Deflection basin data acquired from a test road were used to validate the established models. Then the effects of cracking type and width on deflection basin morphological parameters were investigated. Results show that deflection basins calculated by finite element model coincide well with that measured by FWD field test. The largest difference between calculated deflections and measured values is less than 15% of the measured value. A practical field test method placing FWD sensors across the crack was introduced and slope of deflections between sensor S300 and sensor S600 (k sub 300-600) was proposed as evaluation criteria for the rapid determination of cracking type and width. The cracking is probably mostly reflective cracking when k sub 300-600 is between 0.09~0.12 ‰ and it is very likely thermal cracking if k sub 300-600 is about 0.03 ‰. For reflective cracking, when the crack width increases from 5 to 50 mm, k sub 300-600 increases from 0.09 to 0.13 ‰ correspondingly.

Supplemental Notes:

This paper was sponsored by TRB committee AFD80 Standing Committee on Strength and Deformation Characteristics of Pavement Sections. Alternate title: Evaluation of Transverse-cracked Semi-rigid Pavement Based on Morphological Parameter of Deflection Basin Crossing Crack.

Monograph Accession #:

01584066

Report/Paper Numbers:

16-4735

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Yang, Qun
Deng, Ying-Jie
Sun, Wen-Zhou

Pagination:

17p

Publication Date:

2016

Conference:

Transportation Research Board 95th Annual Meeting

Location: Washington DC, United States
Date: 2016-1-10 to 2016-1-14
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Photos; References; Tables

Uncontrolled Terms:

Crack width; Semi-rigid

Subject Areas:

Highways; Pavements

Source Data:

Transportation Research Board Annual Meeting 2016 Paper #16-4735

Files:

TRIS, TRB, ATRI

Created Date:

Jan 12 2016 6:05PM