郭琳                电话：13910676425  15652622600                      JY-M01系列高强抗磨料施工工艺                                                              
                                                                                                                                在进行抗磨层施工前，筒仓和卸煤槽的原有混凝土基层已施工完超过28天，达到最终硬化强度，为了保证抗磨层和原有混凝土基层粘接牢固，形成有机整体，采取以下三个必要的工艺准备：基层处理、铺设钢筋网、涂刷界面剂。                                                              
1基层处理                                                              
                                                                                                                                界面基层处理主要注意三点：⑴粗糙程度，基层越粗糙，界面结合面积越大，合力越大，抵抗剪切破坏的能力就越强，所以要对基层进行凿毛。⑵完好程度，指粘接面受损伤的程度，损伤越轻，内部产生缺陷越少，粘接性能越好，所以要对基础表面如有疏松部位应予剔除。⑶洁净程度，减少杂质，有利于提高粘接强度。所以要用压力水冲洗清理基础表面，不得有浮浆、浮灰和脱模剂等杂物。                              

2                                铺设钢筋网                                                              
                                                                                                                                为了保证抗磨层与混凝土基层的整体性，减少大面积抹灰造成的抗磨层收缩，增大约束，防止产生空鼓和裂纹，在基层表面需埋设钢筋网。                                                              
                                                                                                                                混凝土基层钻孔深70mm，孔径12mm；用钢筋锚固料锚固Ф6mm钢筋棍，钢筋棍埋设深度70mm，外露15～30mm（设计抗磨层厚度的1/3），钢筋棍之间的间距300mm；钢筋棍的顶端用Ф6mm盘条焊接成网。                              

3                                涂刷界面剂                                                              
                                                                                                                                3.1                                施工前2小时充分湿润基础表面，施工时将浮水吸干。                                                              
                                                                                                                                3.2                                专用界面处理剂与42.5级普通硅酸盐水泥、细沙按照1：2：1比例混合，搅拌均匀待用。将混合好的界面剂浆体均匀涂刷在已处理好的混凝土基础表面，不能漏刷                              

4                                抗磨料搅拌                                                              
                                                                                                                                高强抗磨料可采用机械搅拌或人工搅拌，建议采用强制式搅拌机进行机械搅拌，可以提高施工效率，保证搅拌充分均匀，施工效果更好。现场加水量为13.5%～14%加水搅拌，稠度以适合施工为宜，搅拌位置尽量靠近施工位置，以利施工的连续进行。从加水搅拌到施工完毕应控制在40分钟内为宜，因此应保证每次搅拌量与施工速度相匹配。                                                              
5                                抹灰                                                              
                                                                                                                                待涂刷的界面剂表面指触干燥时，用抹刀将抗磨料抹在混凝土面层上，第一层抹灰时要用力按压。每次抹灰厚度不宜超过20mm，当抗磨层设计较厚时，待第一层抹灰层达到初凝状态后，进行下一层抹灰施工，施工至设计抗磨层厚度。                              

6                                压光                                                              
                                                                                                                                根据气候条件，1～2小时后，抗磨料接近初凝时进行压光处理。压光工序非常重要，可降低抗磨层表面的粗糙度，有利于出料通畅，不堵料。如果施工厚度较大，容易出现塑型裂纹，所以在第一次压光后1～2小时要进行第二次压光处理                              

7                                养护                                                              
                                                                                                                                夏季施工，应在施工完毕后4小时内，高强抗磨料初凝后加盖湿草袋或岩棉被浇水养护。冬季施工，施工完毕后应立即覆盖塑料薄膜，并加盖草袋或岩棉被，并采取保温措施。养护期为7天，养护措施还应符合《钢筋混凝土工程施工及验收规范》中的有关规定