Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Monitoring of Joint Cracking Development in Concrete Pavement with Concrete Embedment Strain Gages
Although joint sawing has been widely used in concrete pavement to prevent uncontrolled cracking, optimum timing of joint sawing is critical to ensure appropriate crack control in designed joint locations. This paper presents a study of using concrete embedment strain gauges to monitor cracking at sawed joints by measuring the strain development at the joints. Five joints with the conventional sawing method were sawed to a depth of one-quarter of the pavement thickness. It was found that the strain gauges used in the study were capable of effectively monitoring the deformations at the joints. The results from the present study indicate that while cracking appeared at different ages in various joint locations, all five joints cracked within 7 days after paving, and no random uncontrolled cracking was observed. The joint crack times (or crack initiation time) measured by the strain gauges were generally consistent with the visual observations. Results and approach of the study can be used to identify potential late-stage random cracking problems in pavements construction with various sawing practices.
Monitoring of Joint Cracking Development in Concrete Pavement with Concrete Embedment Strain Gages
Although joint sawing has been widely used in concrete pavement to prevent uncontrolled cracking, optimum timing of joint sawing is critical to ensure appropriate crack control in designed joint locations. This paper presents a study of using concrete embedment strain gauges to monitor cracking at sawed joints by measuring the strain development at the joints. Five joints with the conventional sawing method were sawed to a depth of one-quarter of the pavement thickness. It was found that the strain gauges used in the study were capable of effectively monitoring the deformations at the joints. The results from the present study indicate that while cracking appeared at different ages in various joint locations, all five joints cracked within 7 days after paving, and no random uncontrolled cracking was observed. The joint crack times (or crack initiation time) measured by the strain gauges were generally consistent with the visual observations. Results and approach of the study can be used to identify potential late-stage random cracking problems in pavements construction with various sawing practices.
Monitoring of Joint Cracking Development in Concrete Pavement with Concrete Embedment Strain Gages
Hu, Jiong (Autor:in) / Wang, Kejin (Autor:in) / Bektas, Fatih (Autor:in)
Geo-Hubei 2014 International Conference on Sustainable Civil Infrastructure ; 2014 ; Yichang, Hubei, China
23.06.2014
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Monitoring of Joint Cracking Development in Concrete Pavement with Concrete Embedment Strain Gages
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