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Construction method of concrete cylindrical formwork

A construction method and concrete technology, applied in molds, manufacturing tools, coatings, etc., can solve the problems of easy deformation, poor surface quality of cylindrical concrete, poor waterproofness, etc. good effect

Active Publication Date: 2021-07-27
平凉市新世纪建筑工程有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the concrete column formwork is used to make the concrete column, it is usually prone to deformation due to the construction load and the lateral pressure generated during the concrete pouring process, and the water resistance is poor. Long-term exposure to the sun and rain will also cause its deformation, resulting in the production of cylindrical concrete. The surface quality is not good enough, and it is urgent to provide a new construction method for concrete cylindrical formwork, which can greatly improve the deformation resistance of the cylindrical formwork during the construction process, so as to prevent its deformation, improve the service life of the formwork, and improve the quality of the cylindrical concrete produced. the quality of

Method used

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Examples

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Effect test

preparation example 1

[0066] A preparation method of silica-coated nano-calcium carbonate, comprising the following steps:

[0067] Mix nanometer calcium carbonate with water, ultrasonically disperse for 40 minutes, add 1 / 5 amount of ammonium fluorosilicate solid, heat to 80°C, then add ammonia water and the remaining ammonium fluorosilicate solid, stir and react at 80°C for 60 minutes, filter , washing the filter cake, and vacuum drying to obtain a silica-coated nano-calcium carbonate composite;

[0068] Among them, the mass ratio of nano-calcium carbonate to ammonium fluorosilicate solid total addition amount and ammonia water is 1:1:3.5, and the mass ratio of nano-calcium carbonate to water is 1:3.

preparation example 2

[0070] A method for preparing silica-coated nano-calcium carbonate, carried out according to the method in Preparation Example 1, the difference is that nano-calcium carbonate is mixed with water, ultrasonically dispersed for 40 minutes, and 1 / 5 of the amount of ammonium fluorosilicate solid is added , heated to 100°C, then added ammonia water and the remaining ammonium fluorosilicate solid, stirred and reacted at 100°C for 40 minutes, filtered, washed the filter cake, and dried in vacuum to obtain a silica-coated nano-calcium carbonate composite;

[0071] Among them, the mass ratio of nano-calcium carbonate to ammonium fluorosilicate solid total addition amount and ammonia water is 1:1.5:5, and the mass ratio of nano-calcium carbonate to water is 1:5.

preparation example 3

[0073] A method for preparing silica-coated nano-calcium carbonate, carried out according to the method in Preparation Example 1, the difference is that nano-calcium carbonate is mixed with water, ultrasonically dispersed for 40 minutes, and 1 / 5 of the amount of ammonium fluorosilicate solid is added , heated to 90°C, then added ammonia water and the remaining ammonium fluorosilicate solid, stirred and reacted at 90°C for 50 minutes, filtered, washed the filter cake, and dried in vacuum to obtain a silica-coated nano-calcium carbonate composite;

[0074] Among them, the mass ratio of nano-calcium carbonate to ammonium fluorosilicate solid total addition amount and ammonia water is 1:1.2:4, and the mass ratio of nano-calcium carbonate to water is 1:4.

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Abstract

The invention relates to the technical field of building construction, and particularly discloses a construction method of a concrete cylindrical formwork. The method comprises the following steps that S1, an arc-shaped formwork is machined, specifically, the arc-shaped formwork comprises an arc-shaped formwork base material obtained through high-temperature and high-pressure forming and an epoxy resin film coating the surface of the formwork base material; the formwork base material comprises a wood board and wood-plastic boards located on the two sides of the wood board, and the wood board is obtained by laying birch boards and poplar boards in a crossed mode; the epoxy resin film is obtained by coating the following raw materials including, by weight, epoxy resin, a curing agent, dibutyl ester, ethylenediamine, silicon dioxide coated nano calcium carbonate and nano silicon dioxide; S2, positioning and paying off are performed; S3, the formworks are assembled; S4, the perpendicularity is corrected; S5, concrete is poured; and S6, formwork removal is conducted, and the construction method of the concrete cylindrical formwork is achieved. The construction method has the characteristics that the deformation resistance of the cylindrical formwork in the construction process is improved, and the production quality of cylindrical concrete is improved.

Description

technical field [0001] The present application relates to the technical field of building construction, and more specifically, it relates to a construction method of a concrete column formwork. Background technique [0002] Concrete column formwork is a production tool that has been used a lot in recent years. It is used to produce cylindrical concrete. Because of its fast production speed, the produced concrete column is compact, durable, and low in production cost. It is widely used in various fields. When the concrete column formwork is used to make the concrete column, it is usually prone to deformation due to the construction load and the lateral pressure generated during the concrete pouring process, and the water resistance is poor. Long-term exposure to the sun and rain will also cause its deformation, resulting in the production of cylindrical concrete. The surface quality is not good enough, and it is urgent to provide a new construction method for concrete cylindr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B21/04B28B21/76C09D163/00C09D183/06C09D7/61C09D7/62C09D7/63C09D7/20
CPCB28B21/04B28B21/76C09D163/00C09D7/61C09D7/62C09D7/63C09D7/20C08K2003/265C08K2201/011C08L83/06C08K9/10C08K3/26C08K3/36C08K5/17C08K5/5419
Inventor 王改牛李虎杨向兵
Owner 平凉市新世纪建筑工程有限责任公司
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