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京城大厦外墙板的面砖外饰面要求与墙体反打一次成型,在国内尚无先例。面砖采用日本进口的钛面砖,具有较高的硬度,价格昂贵。针对这一特点,我们对面砖饰面墙板(简称PC板)反打一次成型工艺作了试验和研究,通过试制为完善和改进生产工艺创造了条件。一、生产工艺 PC板采用浅池台座法生产,反打一次成型,其生产工艺流程如图1所示。反打一次成型工艺就是预先将面砖固定在模板底模上,将铝合金轨道槽固定在侧模斜面上,钢筋骨架及埋件入模就位后直接在面砖上浇筑混凝土拌合物,经高频插入式振捣棒振捣后一次成型,蒸养
The face brick outer wall of the exterior wall slab of the Beijing City Building is required to be counter-molded with a wall. There is no precedent in the country. The tile is made of titanium tiles imported from Japan. It has high hardness and is expensive. In response to this feature, we conducted trials and studies on the back molding of a brick facing veneer (PC board) and created conditions for perfecting and improving the production process through trial production. First, the production process PC board using shallow pool pedestal method of production, playing a molding, the production process shown in Figure 1. Reverse molding process is to pre-fix the tile on the template bottom mold, and fix the aluminum alloy track groove on the slope of the side mold. After the steel frame and embedding piece are in position, the concrete mixture is poured directly on the tile. Frequency-insertion type vibrating rods are molded once and vibrated