1、 控制混凝土内部缺陷的验收规范 清水混凝土表面缺陷主要为表面平整度、轴线位置不满 设计要求、表面蜂窝、麻面、有气泡密集区，表面缺损， 非受力钢筋露筋。小孔洞、单个气泡等；混凝土内部缺陷 主要指混凝土浇筑过程中，混凝土振捣质量差，造成混 凝土内部架空和孔隙率偏大的缺陷，内部缺陷应在混凝 土浇筑过程中及时发现，及时清除。 Concrete surface defect is mainly for the surface roughness and axis position with the design requirements, surface voids, pits, bubble conc
2、entration areas, surface defect, and the reinforced bar. Small holes, the individual bubbles, etc.; Inside the concrete defects mainly refers to the concrete pouring process, the poor quality of concrete vibratory, caused concrete internal overhead and large porosity defects, internal defects should
3、 be found in concrete pouring process in a timely manner, timely removal. 目前国内尚无统一的清水混凝土质量验收规范，在普通 结构混凝土验收标准的基础上，形成如下质量标准： At present there is no unified water concrete quality acceptance specification, on the basis of the common structural concrete acceptance standard, form the following quality st
4、andard: 轴线通直、尺寸准确；棱角方正、线条顺直；表面平整、 清洁、色泽一致；表面无明显气泡，无砂带和黑斑；表面 无蜂窝、麻面、裂纹和露筋现象；模板接缝、对拉螺栓和 施工缝留设有规律性；模板接缝与施工缝处无挂浆、漏 浆。 Axis through straight, size accurate; Edges and founder, straight lines; Surface smooth, clean, colour and lustre is consistent; Surface have no obvious bubbles, without abrasive belt an
5、d dark spots; Honeycomb, pits, cracks and surface without phenomenon; Template juncture, to bolt and construction joints with regularity; Template juncture no hang pulp, slurry leakage and construction joints. (1)清水混凝土施工用的模板必须具有足够的刚度。在混 凝土侧压力作用下不允许有一点变形，以保证结构物的 几何尺寸均匀、断面的一致，防止浆体流失； (1) clear water c
6、oncrete construction with template must have enough stiffness. In concrete under the action of lateral pressure are not allowed to have a little out of shape, so as to ensure the same geometry size uniform, cross section structure, prevent loss of slurry; (2)选用的模板材料要有很高要求，表面平整光洁， 强度高、耐腐蚀，并具有一定的吸水性；
7、(2) the chosen template materials should have high requirements, smooth bright and clean surface, high strength, corrosion resistance, and has certain absorbent; (3)对模板的接 缝 和固定模板的螺栓等， 则要求接缝 严密，不允许漏浆； Seams and fixed template (3) for the template of the bolt, etc., requires joint closely, not allowed
8、 to leak slurry; (4)酿酒 设备模板 设计要充分考虑在拼装和拆除方面 的方便性支撑的牢固性和简便性，并保持较好的强度、 刚度、稳定性及整体拼装后的平整度； (4) template design should fully consider the assembling and dismantling convenient. Support robustness and simplicity, and maintain a good strength, stiffness, stability and the overall flatness after assembling;
9、 (5)根据构件的 规 格和形状，建议配制定型模板，以 便周转施工所需； (5) according to the specifications of the components and shapes, proposal preparation, finalize the design template so that the turnover of construction required; (6)模板制作 时应 保证几何尺寸精确，拼 缝严密，材 质一致，模板面板拼缝高差、宽度应1mm，模板间接缝 高差、宽度2mm； 喷灌设备模板接缝处理要严密，建议 矿用风机模板内板缝用油膏批嵌外侧用硅
10、胶或发泡剂 封闭，以防漏浆，模板脱模剂应采用吸水率适中的无色 的轻机油； (6) template should guarantee the geometry precision when producing, flat-fell seam, material is consistent, flat-fell seam height difference template panel, the width should be 1 mm or less, joint elevation difference between template and width 2 mm or less; Tem
11、plate template joint is tight, it is recommended that the plate seam with silica gel or foaming agent with the outside of ointment group of embedded closed, to prevent leak slurry, formwork release agent should be used bibulous rate moderate colorless light oil; (7)严格控制模板周转次数，周转 3 次后应进行全面 检修并抛光打磨。 (7) strict control template turnover, turnover of 3 times should be to conduct a comprehensive maintenance and polishing burnish.
