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Function modified cement accelerator

A technology of modifier and quick-setting agent, which is applied in the field of preparation of functionally modified cement quick-setting agent to achieve obvious effect and high curing strength

Inactive Publication Date: 2017-12-26
广州速力新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It does not involve the functional modification of accelerators to broaden the application of ordinary Portland cement as a new material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] In the following, the present invention combines actual cases to further illustrate the implementation mode.

[0016] One, for example, use the modified accelerator of the present invention to make ordinary Portland cement pen holder crafts. First, the technical requirements for the production of cement crafts. First, the use of the infusion process requires good cement fluidity and workability, otherwise it cannot be poured into the mold. Second, set the curing time in advance. Third, the strength after curing should reach the demoulding standard (or it will be broken if demoulding, and it will not meet the requirements of use)

[0017] 1. The implementation formula is as shown in the table (pre-set 10 to 15 minutes curing), the total material is 195 grams

[0018] Amorphous calcium aluminate

Modifier

Ordinary Portland White Cement (Abbot, USA)

Water

14.25g

0.75g

135g

45g

[0019] 2. To implement the method, first disperse and mix a certain ratio of amorphous calci...

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PUM

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Abstract

The invention relates to a function modified cement accelerator. The function modified cement accelerator is characterized in that ordinary Portland cement is endowed with a special function through modification. As for the traditional accelerator, once the traditional accelerator is added into and stirred with the ordinary Portland cement and water, calcium sulphoaluminate is generated and hydrated to release heat, thereby causing workability loss of cement and thus being only suitable for a jetting process; the setting time of the cement cannot be flexibly preset; and the cement curing is only mechanically accelerated, so that the traditional accelerator is unsuitable for various projects and technologies. Different from the traditional accelerator, the function modified cement accelerator has main characteristics that the function modified cement accelerator can be poured, jetted and injected for molding at the aspect of use technology, the setting time can be roughly preset and the workability and liquidity thereof are almost not influenced before the preset setting time; an additive is used for solving the problem of partial functional application of the ordinary Portland cement; the function modified cement accelerator has a wide application prospect in the fields of metro grouting, cement technical components, quick pavement patching, 3D printing of building walls, and the like, in the future.

Description

Technical field [0001] The invention relates to a method for preparing and using a functionally modified cement accelerator. technical background [0002] Cement accelerator (hereinafter referred to as accelerator), also called accelerator, is a chemical admixture that can promote the rapid setting of cement or concrete. It is used for bolting and shotcrete support in mines, tunnels, tunnels, etc., as well as leak plugging and emergency repairs It is widely used in engineering. As a chemical product, the production and use of accelerators can be traced back to the 1930s. The birth and use of accelerators made sprayed concrete construction possible, and played an important role in the creation of bolt and shotcrete support technology for mines and tunnels. The performance indicators to measure the quality of the quick-setting agent mainly include the physical and chemical properties and state of the quick-setting agent itself, the performance of the quick-setting effect, early s...

Claims

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Application Information

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IPC IPC(8): C04B24/04C04B28/04C04B103/12
Inventor 黄雨
Owner 广州速力新材料科技有限公司
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