TY - GEN
T1 - Shear resistance performance evaluations of rubber asphalt waterproof adhesive layer on bridge deck
AU - Ji, Lun
AU - Li, Yunliang
AU - Wang, Haipeng
AU - Zhang, Lei
AU - Tan, Yiqiu
PY - 2014
Y1 - 2014
N2 - Shear resistance performance between asphalt concrete surfacing and cement concrete is very important to guarantee the service life of deck paving. Insufficient shear resistance will result in some premature damage, such as cutting-slippage, folding, spalling, and loose. Shear resistance performance of rubber asphalt waterproof-adhesive layer was evaluated with oblique shear experiment under common design high-low temperature condition(20°C, 50°C and -10°C). With the different effect of loading rate and rubber asphalt spraying quality, shear resistance performance was evaluated with indexes such as maximum shear stress (Tmax), shear resistance energy (Et) and ultimate shear deformation (δb). Results show that shear resistance performance of rubber asphalt waterproof adhesive layer under three different temperature conditions are significantly different. Under high temperature: tmax and Et decrease significantly when temperature varies from 20°Cto 50°C; meanwhile the two indexes are affected by rubber asphalt spraying quality insignificantly; the fundamental factor determining shear resistance ability is interaction ability between rubber asphalt and concrete surface. Under -10°C: Rubber asphalt waterproof-adhesive layer shows elastic properties; the relationship between shear stress and shear deformation shows general linear; δb decreases significantly, but shear stress is great enough to improve Et to an increased result. So the spraying quality and shear resistance ability can be determined and evaluated by the three indexes (Tmax, Et, δb) tested by oblique shear experiment.
AB - Shear resistance performance between asphalt concrete surfacing and cement concrete is very important to guarantee the service life of deck paving. Insufficient shear resistance will result in some premature damage, such as cutting-slippage, folding, spalling, and loose. Shear resistance performance of rubber asphalt waterproof-adhesive layer was evaluated with oblique shear experiment under common design high-low temperature condition(20°C, 50°C and -10°C). With the different effect of loading rate and rubber asphalt spraying quality, shear resistance performance was evaluated with indexes such as maximum shear stress (Tmax), shear resistance energy (Et) and ultimate shear deformation (δb). Results show that shear resistance performance of rubber asphalt waterproof adhesive layer under three different temperature conditions are significantly different. Under high temperature: tmax and Et decrease significantly when temperature varies from 20°Cto 50°C; meanwhile the two indexes are affected by rubber asphalt spraying quality insignificantly; the fundamental factor determining shear resistance ability is interaction ability between rubber asphalt and concrete surface. Under -10°C: Rubber asphalt waterproof-adhesive layer shows elastic properties; the relationship between shear stress and shear deformation shows general linear; δb decreases significantly, but shear stress is great enough to improve Et to an increased result. So the spraying quality and shear resistance ability can be determined and evaluated by the three indexes (Tmax, Et, δb) tested by oblique shear experiment.
UR - https://www.scopus.com/pages/publications/84902363165
U2 - 10.1061/9780784413326.017
DO - 10.1061/9780784413326.017
M3 - 会议稿件
AN - SCOPUS:84902363165
SN - 9780784413326
T3 - Climatic Effects on Pavement and Geotechnical Infrastructure - Proceedings of the International Symposium of Climatic Effects on Pavement and Geotechnical Infrastructure 2013
SP - 167
EP - 175
BT - Climatic Effects on Pavement and Geotechnical Infrastructure - Proceedings of the International Symposium of Climatic Effects on Pavement and Geotechnical Infrastructure 2013
PB - American Society of Civil Engineers (ASCE)
T2 - International Symposium of Climatic Effects on Pavement and Geotechnical Infrastructure 2013
Y2 - 4 August 2013 through 7 August 2013
ER -