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A pouring gypsum wall and formulating method thereof

A preparation method and wall technology, applied to walls, building components, buildings, etc., can solve the problems of easy peeling of cement mortar plastering layer, slow water evaporation, high water consumption, etc., achieve good market promotion prospects, and low moisture content , the effect of mitigating pollution

Inactive Publication Date: 2011-04-20
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a pouring gypsum wall formula and its preparation and use method to overcome the high water consumption when pouring the gypsum wall, the large amount of residual water, the slow evaporation of water content in the natural state, and the low strength. Defects such as low height, cement mortar plastering layer easy to fall off, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In parts by mass, take 70 parts of building gypsum, 25 parts of yellow phosphorus slag as a hydraulic cementitious material, 5 parts of alkaline activator lime, 1 part of externally mixed Nai series water reducer, 1 part of stearic acid water repellent, water ash than 0.60.

[0023] According to the above ratio, after stirring and mixing the building gypsum, hydraulic cementitious material, and alkaline activator evenly, add water reducer, water repellent and water, stir and mix evenly, pour it into the mold, and remove the mold after 2 hours. Can.

Embodiment 2

[0025] In parts by mass, take 80 parts of building gypsum, 10 parts of yellow phosphorus slag of hydraulic cementitious material, 10 parts of alkaline activator lime, 2.8 parts of externally mixed Nai series water reducer, 2.8 parts of sodium stearate water repellent, water The gray ratio is 0.55.

[0026] According to the above ratio, stir and mix the water reducer, water repellent and water evenly, then add the hydraulic cementitious material, alkaline activator and building gypsum in turn, stir and mix evenly, pour it into the mold, and remove the mold after 4 hours That's it.

Embodiment 3

[0028] In parts by mass, take 75 parts of construction gypsum, 20 parts of granulated blast furnace slag of hydraulic cementitious material, 5 parts of alkaline activator lime, 2 parts of polycarboxylate superplasticizer, and 0.5 part of sodium stearate water repellent 1 part of paraffin water repellent, water-cement ratio 0.40.

[0029] According to the above proportions, after stirring and mixing the building gypsum, hydraulic cementitious material, and alkaline activator evenly, add water reducer, water repellent and water, stir and mix evenly, pour it into the mold, and remove the mold after 3 hours. Can.

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PUM

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Abstract

The invention discloses a pouring gypsum wall and formulating method thereof, which is prepared by70-80 parts of building gypsum, 10-30 parts of hydraulicity gelate material, 1-10 parts of alkaline activator, dehydragent and hydrophober. Compared with the existing gypsum wall pouring construction technique, the invention has the following advantages: (1) simple gypsum wall prescription and technology route, low production costs; (2) low gypsum wall moisture percentage, fast drying, capability of adopting cement mortar surface smearing or building exterior wall paint facing; (3) the poured gypsum wall having favorable strength character and water resistance, which can be applied in inside and outside building walls; (4) mitigation of environmental pollution by discharging chemical waste gypsum.

Description

technical field [0001] The invention relates to a building material, in particular to a cast gypsum wall and a preparation method thereof. Background technique [0002] Gypsum walls have the advantages of green, environmental protection, energy saving, and economy. At present, the application patents for pouring gypsum walls include: Chinese Patent Publication No. CN200710051888.1 disclosed "lightweight gypsum walls and their integral pouring method" on September 26, 2007, and CN200710115939 disclosed on June 25, 2008 "Pouring gypsum walls on site", etc., these methods are to use the principle of dissolution and crystallization of gypsum, and use the method of pouring to make it a hardened gypsum wall. Since the building gypsum powder has a plate-like crystal shape and poor fluidity, it can only have good fluidity at a high water-to-paste ratio. Therefore, the use of building gypsum to directly pour water into the wall is relatively high, and the residual water in the gyps...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B2/84C04B28/14
Inventor 曹建新杨林刘力林倩
Owner GUIZHOU UNIV