Solutions To Mitigate Dowel/Tie-Bar Propagated Cracking – Phase 1

Rao, Shreenath; Abdualla, Hesham; Sufian, Abu A

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Solutions To Mitigate Dowel/Tie-Bar Propagated Cracking – Phase 1

2024-04-01
By Rao, Shreenath ; Abdualla, Hesham ; Sufian, Abu A

File Language:

English

[PDF - 26.20 MB]

Details

Creators:

Rao, Shreenath ; Abdualla, Hesham ; Sufian, Abu A
Corporate Creators:

Applied Research Associates ; National Road Research Alliance
Corporate Contributors:

Minnesota. Department of Transportation. Office of Research & Innovation
Subject/TRT Terms:
Publication/ Report Number:

NRRA202402
Resource Type:

Tech Report
Geographical Coverage:

Minnesota ; Wisconsin ; United States
Edition:

Final Report
Corporate Publisher:

Minnesota. Department of Transportation
Abstract:

This Phase 1 study was undertaken to evaluate cracking related to dowel bars and tie bars in concrete pavement. The results of the literature review and field studies suggest that under some conditions, restraint caused by dowel bars and tie bars in the concrete result in high early age stresses that contribute to cracking. Field evaluation of six sites conducted as part of this research suggests that this type of cracking is not an isolated phenomenon. While a notional description of the potential mechanism is described in this report, details regarding the extent to which various factors impact this type of cracking and appropriate reasonable steps to take to mitigate this type of cracking is not fully understood. To gain a more detailed understanding, a combination of finite element (FE) analysis with laboratory experiment is proposed for Phase 2. The analysis proposed includes an evaluation of key parameters and their influence on dowel bar cracking followed by validation through laboratory experimentation and model refinement.
Format:

PDF
Funding:

(c) 1034445
Download URL:

https://rosap.ntl.bts.gov/view/dot/75576/dot_75576_DS1.pdf
File Type:

[PDF - 26.20 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:e97db0f44a83ee2d03536e06b9996c1737b1e139c94d6e5c498ce3bb153c20b644b6ee6829b1fb9a8c4aae8516c7454eb680629fcaf787146832bc07c100b285

File Language:

English

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