Road and bridge pile foundation grouting pipe/Hubei Wuhan grouting pipe wholesale
. The grouting pipe is installed on the top and left embedded
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. The top of the grouting symbol is buried in the template for positioning,
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. 4. Use reverse molding to install stairs, component side moldings, etc. as much as possible to increase the template turnover rate
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. According to the design size. The template uses a shearing machine and a folding machine. A training and sectioning machine is used for cutting, and cutting standards are used to hide steel bars, horizontal slabs, etc. Those that fail the acceptance inspection will be rectified until they meet the construction technology for concrete pouring. Before mixing concrete, the moisture content of sand and stone should be measured and adjusted according to the test results. Construction mix ratio.
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.. The concrete should be distributed evenly, and the vibration should be done quickly in and out slowly, and the concrete should be vibrated evenly up and down by twitching slightly up and down. Vibration is carried out in sequence to avoid over-vibration and vibration leakage, until the concrete surface is level, no longer significantly sinks, no bubbles appear, and mortar appears on the surface. During vibrating, the vibrating arm should be prevented from touching the component side molds, grouting pipes, pipelines, embedded parts, etc.
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.. During the concrete construction process, there should be a dedicated person responsible for guarding the steel bars, formwork, and water and electricity reserves to prevent deformation and displacement. And processes such as calendering the surface of components and roughening the surface of the laminated panels are carried out in a timely manner.
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.. The concrete should be subjected to slump test when entering the site. No less than 3 sets of test specimens should be made from the same batch of concrete with the same strength level. One group should be used for standard curing, and the other two groups should be used for the same purpose. Conditional curing is used to determine demoulding and allowable lifting time.
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. The concrete strength must meet the design requirements when the components are lifted and demoulded. When there are no special requirements in the design, non-prestressed components should not be lower than the designed standard value of concrete cube compressive strength, and prestressed components should not be lower than the designed standard value of concrete cube compressive strength.
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. .Special spreaders must be used to lift horizontal components such as laminated boards, and ensure uniform stress on each lifting point to avoid breakage caused by uneven stress on the components.
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Road and bridge pile foundation grouting pipe/Hubei Wuhan grouting pipe wholesale