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Results of Repairs on Texas Longitudinal Joints and Cracks

Chen, Dar Hao / Fowler, David W. / Whitney, David P. / Won, Moon

Longitudinal joint separations are often observed in concrete pavements. An innovative repair procedure was developed in this study for slot stitching in faulted or separated longitudinal joints. It involves with three stages: (1) low pressure grout to restore support under slabs that exhibited signs of pumping and faulting (2) the slot stitching method of retrofitting tie bars, to restore lateral restraint and load transfer across longitudinal joints, and (3) latex modified concrete overlay to restore proper elevation to slabs that had faulted. This paper discusses the results and lesson learned from the first implementation project on US Highway 75 near Sherman, Texas.

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Results of Repairs on Texas Longitudinal Joints and Cracks

Chen, Dar Hao / Fowler, David W. / Whitney, David P. / Won, Moon

Longitudinal joint separations are often observed in concrete pavements. An innovative repair procedure was developed in this study for slot stitching in faulted or separated longitudinal joints. It involves with three stages: (1) low pressure grout to restore support under slabs that exhibited signs of pumping and faulting (2) the slot stitching method of retrofitting tie bars, to restore lateral restraint and load transfer across longitudinal joints, and (3) latex modified concrete overlay to restore proper elevation to slabs that had faulted. This paper discusses the results and lesson learned from the first implementation project on US Highway 75 near Sherman, Texas.

Results of Repairs on Texas Longitudinal Joints and Cracks

Chen, Dar Hao / Fowler, David W. / Whitney, David P. / Won, Moon

Longitudinal joint separations are often observed in concrete pavements. An innovative repair procedure was developed in this study for slot stitching in faulted or separated longitudinal joints. It involves with three stages: (1) low pressure grout to restore support under slabs that exhibited signs of pumping and faulting (2) the slot stitching method of retrofitting tie bars, to restore lateral restraint and load transfer across longitudinal joints, and (3) latex modified concrete overlay to restore proper elevation to slabs that had faulted. This paper discusses the results and lesson learned from the first implementation project on US Highway 75 near Sherman, Texas.

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Title:

Results of Repairs on Texas Longitudinal Joints and Cracks

Contributors:

Chen, Dar Hao (author) / Fowler, David W. (author) / Whitney, David P. (author) / Won, Moon (author)

Conference:

GeoHunan International Conference 2011 ; 2011 ; Hunan, China

Published in:

Emerging Technologies for Material, Design, Rehabilitation, and Inspection of Roadway Pavements ; 208-214

Publication date:

2011-05-16

ISBN:

DOI:

https://doi.org/10.1061/47629(408)26

Type of media:

Conference paper

Type of material:

Electronic Resource

Language:

English

Keywords:

Technology , Maintenance , Joints , Inspection , Design , Concrete pavements , Geomaterials , Rehabilitation , Material tests , Cracking , Pavements

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