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A permanently modified phosphogypsum composite thermal insulation formwork and its manufacturing method

A technology of composite thermal insulation and phosphogypsum, applied in chemical instruments and methods, climate sustainability, synthetic resin layered products, etc., can solve the problem of consuming large molds, sites, labor, increasing costs and investment costs, and affecting the ecological environment, etc. problems, to achieve the effect of good tensile and folding resistance, good thermal insulation performance, and time saving

Inactive Publication Date: 2017-04-19
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the permanent demolition-free formwork that is widely used at present requires a lot of molds, sites, labor, etc. due to the long hydration time of the cement slurry used, which also greatly increases the cost and investment cost.
Phosphogypsum, an industrial by-product, can only be stacked because it cannot be well utilized. This not only takes up a lot of land, but also pollutes groundwater due to the erosion of rainwater during the stacking process. There is no grass around the stacking site, which seriously affects the ecological environment.

Method used

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  • A permanently modified phosphogypsum composite thermal insulation formwork and its manufacturing method
  • A permanently modified phosphogypsum composite thermal insulation formwork and its manufacturing method

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Embodiment Construction

[0021] Case 1

[0022] Such as figure 1 As shown, a permanent modified phosphogypsum composite insulation formwork will be as figure 2 The extruded board with horizontal and vertical grooves shown is placed horizontally, and a layer of interface agent is evenly applied on the outside, with a thickness of about 1mm. The modified phosphogypsum powder is prepared according to the following ratio:

[0023] Calcined phosphogypsum: 56%, cement: 15.1%, fly ash: 20%, quicklime: 4.66%, slag micropowder: 1.6%, vitrified microbeads: 1.1%, latex powder: 0.8%, superplasticizer: 0.22%, waterproofing agent: 0.23%, polypropylene fiber: 0.14%, retarder: 0.15%; the cement mentioned in the above ratio is 42.5R ordinary portland cement sold in the market.

[0024] The latex powder described in the above proportioning is VINNAPAS 5044N.

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Abstract

The invention relates to a permanently modified phosphogypsum composite thermal insulation template and a manufacturing method thereof. The composite thermal insulation formwork is prepared by coating the outside of the extruded board (1) with an interface agent (2), then coating the outside with a modified phosphogypsum slurry (4), and filling the middle of the modified phosphogypsum slurry with a reinforcing material (3). Modified phosphogypsum slurry is made by mixing calcined phosphogypsum powder, cement, fly ash, quicklime, slag micropowder, vitrified microspheres, latex powder, water reducer, retarder, etc. in a certain proportion and then mixed with water. The invention has the advantages of simple preparation process, fast forming, large output, time-saving, labor-saving and labor-saving, and most of the raw materials used are solid waste, which conforms to national policies, is energy-saving and environmentally friendly, and has remarkable economic benefits.

Description

technical field [0001] The invention belongs to the field of building energy saving and structural integration, and specifically relates to a permanently modified phosphogypsum composite thermal insulation template and a manufacturing method thereof. Background technique [0002] Building energy conservation and the utilization of phosphogypsum are both the needs of the country's sustainable development. Building energy saving and structural integration are the development direction of wall materials, and the permanent demolition-free formwork is in line with this development direction. However, the permanent demolition-free formwork that is widely used at present requires a lot of molds, sites, labor, etc. due to the long hydration time of the cement slurry used, which also greatly increases the cost and investment cost. Phosphogypsum, an industrial by-product, can only be stacked because it cannot be well utilized. This not only takes up a lot of land, but also pollutes g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04C2/288E04C2/32B32B27/38B32B27/08B32B13/06B32B13/12B32B17/02B32B15/02B32B15/18B32B3/30B32B37/15C04B28/00C04B18/30C04B14/22
CPCY02A30/244Y02W30/91
Inventor 张国辉温海滨林平李宁翟淑玉
Owner UNIV OF JINAN
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