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Effects of geogrid in enhancing the resistance of asphalt concrete to reflection cracks

Chang, D.T. / Lai, Rui-Qi / Chang, Jung-Yang / Wang, Yao-Hung

A study was conducted on the formation and development of reflection cracks in overlaid dense graded asphalt concrete. The geogrids used were made of glass fiber, with strengths of 100 kN/m and 200 kN/m. A series of testing for a beam reinforced with geogrid of 100 kN/m strength showed a fatigue life 1.5 to 2.5 times that of the non-reinforced beam and for a beam reinforced with 200 kN/m geogrid, the fatigue life was 5 to 9 times longer. In addition, the modified asphalt appeared to perform nearly as well as the 200 kN/m grid.

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Effects of geogrid in enhancing the resistance of asphalt concrete to reflection cracks

Chang, D.T. / Lai, Rui-Qi / Chang, Jung-Yang / Wang, Yao-Hung

A study was conducted on the formation and development of reflection cracks in overlaid dense graded asphalt concrete. The geogrids used were made of glass fiber, with strengths of 100 kN/m and 200 kN/m. A series of testing for a beam reinforced with geogrid of 100 kN/m strength showed a fatigue life 1.5 to 2.5 times that of the non-reinforced beam and for a beam reinforced with 200 kN/m geogrid, the fatigue life was 5 to 9 times longer. In addition, the modified asphalt appeared to perform nearly as well as the 200 kN/m grid.

Effects of geogrid in enhancing the resistance of asphalt concrete to reflection cracks

Chang, D.T. / Lai, Rui-Qi / Chang, Jung-Yang / Wang, Yao-Hung

A study was conducted on the formation and development of reflection cracks in overlaid dense graded asphalt concrete. The geogrids used were made of glass fiber, with strengths of 100 kN/m and 200 kN/m. A series of testing for a beam reinforced with geogrid of 100 kN/m strength showed a fatigue life 1.5 to 2.5 times that of the non-reinforced beam and for a beam reinforced with 200 kN/m geogrid, the fatigue life was 5 to 9 times longer. In addition, the modified asphalt appeared to perform nearly as well as the 200 kN/m grid.

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Title:

Effects of geogrid in enhancing the resistance of asphalt concrete to reflection cracks

Contributors:

Chang, D.T. (author) / Lai, Rui-Qi (author) / Chang, Jung-Yang (author) / Wang, Yao-Hung (author)

Published in:

Symposium on Flexible Pavement Rehabiliation and Maintenance, 1997 ; 39-52

ASTM STP - Special Technical Publication ; 1348

Publication date:

1999

Size:

14 Seiten, 10 Quellen

ISSN:

Type of media:

Conference paper

Type of material:

Print

Language:

English

Keywords:

Rissbildung , Glasfaser , mechanische Festigkeit , Materialermüdung , Decke (Straßenbelag) , Geogitter

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