Abstract
Latex modified concrete (LMC) has many advantages against an ordinary Portland concrete. Hundreds of projects have been completed using LMC for overlay in Korea. A sound bond is an essential requirements of bridge deck pavements, and the bond property of a bonded overlay to its substrate concrete during the life-time is one of the most important performance requirements. This paper compare and evaluate the effect of the hydrodemolition and cutting diameter of the pull-off test into the bond strength of latex-modified concrete overlay by a series of experimental variables. The concrete surface preparation methods included hydrodemolition, cold milling and jack hammer. The core cutting diameters of pull-off test included four levels: 50, 75, 100 and 150 mm.
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