京沪高铁桥梁墩身施工及外观质量控制技术（Beijing-Shanghai high-speed railway construction quality control technology and the appearance of bridge pier）.docVIP

京沪高铁桥梁墩身施工及外观质量控制技术（Beijing-Shanghai high-speed railway construction quality control technology and the appearance of bridge pier） The surface quality of mixed coagulation + mainly depends on the template, and the template selection and installation quality directly affects the appearance of the concrete. In the design of the elbow, select the plate which is not easily deformed and the surface is bright and clean, so that the formwork has enough strength and rigidity to prevent the concrete from obvious deflection and deformation when pouring the concrete. The template after processing first check template material specifications and sizes are consistent with design drawings; secondly check whether the size of the template structure to meet the design requirements; the final inspection template flatness, wrong table, template connections can meet the requirements of design and specification Before the template is installed, try to spell, set the positioning pin in the test joint, check the template seam and flatness, and simultaneously number to ensure the accuracy and consistency of the template, and ensure that the wrong table is not greater than 2mm. Subsequently, rust, polish and polish each template. Apply mold paint and release agent When the formwork is installed, the connecting pin of the upper and lower formwork must be aligned to ensure the joint is smooth. The template plate between joints must be sealed with double sided tape 2mm thick and 30mm wide, namely the first double-sided tape affixed to a template to install the side bolt connection, in a template to close before tearing off the release paper double-sided adhesive tape, two pieces of adhesive after alignment template together, tighten the bolts. When the connecting bolt is stressed, the double face adhesive tape can be sealed by extrusion to ensure that the template does not leak slurry. After the template is installed, it should be corrected to ensure the quality of the template splicing. Befor