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为了探究植筋胶与混凝土之间的界面结合性能,设计的混凝土植筋挤压试验方案为在混凝土试块上钻孔、注胶、植筋后,通过在钢筋顶部施加压力将植筋胶体包裹着钢筋一起压出混凝土试块。该试验在同济大学力学实验中心进行。试验试件按钢筋与混凝土黏结段长度不同分为5组,共20个。经过探索性试验后,对正式试验的植筋方案作了改进,先在注入胶的洞口插
In order to explore the interface between anchorage rubber and concrete bonding performance, the design of concrete planting bar extrusion test program in the concrete block drilling, plastic injection, planting bar, by applying pressure on the top of the bar will be anchorage colloid wrapped With steel bars out of the concrete test block. The experiment was carried out at Mechanics Experimental Center of Tongji University. The test specimens are divided into 5 groups according to the length of the bond between the reinforcing bars and the concrete, totally 20 pieces. After the exploratory test, the formal test of the implant plan has been improved, the first hole in the injection of plastic plug