Water-tolerant gypsum hollow building block and production method thereof

A hollow block and gypsum block technology, which is applied in chemical instruments and methods, building components, clay preparation devices, etc., to relieve the environmental protection pressure of enterprises and local society, simple process equipment, and low production costs.

Inactive Publication Date: 2009-12-30
GUIZHOU KAILIN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this invention is to provide a water-resistant gypsum hollow block, which fundamentally solves the moistu

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 Ingredients were prepared according to the following mass ratios: 30 kg of phosphogypsum dihydrate, 62 kg of yellow phosphorus slag, 1 kg of lime, 1 kg of polysulfide sealing paste, and 6 kg of phosphate rock slag. The above-mentioned materials are mixed in proportion, stirred evenly, and sent into the mold of the forming machine. Under the condition of no vibration, the forming machine applies pressure of 300 to 800 tons to the static phosphogypsum mixture to produce shaped bricks. Curing with atmospheric pressure steam for 12 hours can produce water-resistant gypsum hollow block products.

Embodiment 2

[0024] Example 2 The ingredients were prepared according to the following mass ratios: 35 kg of phosphogypsum dihydrate, 35 kg of blast furnace slag, 2 kg of propylene polymer, 1 kg of modified epoxy resin, and 27 kg of pyrite slag. The above materials are mixed in proportion, stirred evenly, and sent into the mold of the molding machine. Under the condition of no vibration, the molding machine uses 1000 tons of pressure to press the static phosphogypsum mixture to manufacture shaped bricks. Curing with steam at a pressure of 1.3MPa for 5 hours can produce a water-resistant gypsum hollow block product.

Embodiment 3

[0025] Example 3 Ingredients were prepared according to the following mass ratios: 40 kg of phosphogypsum dihydrate, 45 kg of fly ash, 3 kg of inorganic mineral attapulgite binder, 1 kg of modified hydroxyl-terminated polysiloxane, and 11 kg of coal gangue. The above-mentioned materials are mixed in proportion, stirred evenly, and sent into the mold of the molding machine. Under the condition of no vibration, the molding machine uses 1300 tons of pressure to press the static phosphogypsum mixture to manufacture shaped bricks. Curing with steam at a pressure of 1.0MPa for 10 hours can produce a water-resistant gypsum hollow block product.

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PUM

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Abstract

The invention discloses a water-tolerant gypsum hollow building block which is produced by taking chemical gypsum, hydraulic cementing material, exciting agent and LY gelling agent as raw materials and adopting the processes of mixing, shaping and maintenance. The chemical gypsum is an industrial gypsum of ardealite, desulfurization gypsum or fluorine gypsum. The hydraulic cementing material is an industrial slag of yellow phosphorus slag, blast furnace slag or fly ash. The exciting agent is lime, propylene macromoleclar polymer or inorganic mineral concavo-convex stick earth binder. A production method of the water-tolerant gypsum hollow building block can effectively solve the problem that the discharge of the industrial slag occupies land, relieve the environment-protection pressure brought to enterprises and the society and realize the cyclic use of resources inside the enterprises. The water-tolerant gypsum building block provides an approach for comprehensively utilizing the industrial slag, is an energy-saving and environment-friendly building material product and conforms to state policies for recycling economy and sustainable development. The production method requires simple apparatuses and low cost, and the finished product rate of the production method is over 95 percent. The production method is suitable for the enterprises producing byproduct industrial gypsum.

Description

technical field [0001] The invention relates to concrete building materials, in particular to a gypsum block, and further to a water-resistant gypsum hollow block. Background technique [0002] Water-resistant gypsum hollow block is a new type of wall material, which can be widely used in industrial and civil buildings. It can be used not only as a filling material for the interior and exterior walls of buildings with frame structures, but also as masonry materials for temporary buildings and low-rise buildings. [0003] Traditional gypsum products have poor moisture resistance and water resistance, which leads to great limitations in the use in construction. The production of traditional gypsum products requires frying dihydrate gypsum raw materials into hemihydrate gypsum and reproducing them into finished products, which increases production costs. . [0004] In recent years, there have been many research results on the application of gypsum blocks, and as many as 38 tec...

Claims

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Application Information

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IPC IPC(8): E04C1/00B28C7/04B28B3/00B28B11/24C04B28/14
Inventor 邓竹林杨步雷杨永彬段豫川
Owner GUIZHOU KAILIN GRP CO LTD
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