THE INFLUENCE OF LIE-BETWEEN MORTAR ON A PRECAST REINFORCED-CONCRETE RETAINING WALL'S SLIDING RESISTANCE

摘要

In the construction of a precast reinforced-concrete retaining wall, mortar is placed between the precastwall and the concrete foundation to provide a flat interfacebetween the wall and foundation. In traditional constructionmethods, a viscous spread mortar is used. In newer constructionmethods, a thin mortarAgmilkAh is injected in place.If the sub-base conditions are the same for both constructionmethods, we need to know the sliding resistance properties ofthe material to be put between the precast wall and thefoundation to develop a reasonable design for a precastreinforced-concrete retaining wall.According to the results of the experiment, after one day ofcuring, the new construction method shows a 40Ai increasein coefficient of friction due to the effect of adhesioncompared to the traditional construction method. In addition,motar milk is strong enough to transmit the vertical forceacting on the retaining wall to the foundation. Therefore, thenew construction method can be said to be an excellentconstruction method for ensuring greater sliding resistance properties.