Manufacturing high-strength water-proof fire braking-free brick by industrial subgypsum

A technology of unburned bricks and gypsum, which is applied in the field of new building materials, can solve the problems of environmental pollution, consumption of clay and coal resources, etc., and achieve the effects of reducing energy consumption, excellent volume stability, and good fire resistance

A technology of unburned bricks and gypsum, which is applied in the field of new building materials, can solve the problems of environmental pollution, consumption of clay and coal resources, etc., and achieve the effects of reducing energy consumption, excellent volume stability, and good fire resistance

CN1955141AInactive Publication Date: 2007-05-02尹小林
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] By weight percentage, use 73% desulfurization gypsum, 11.2% fly ash, 13% slag, R 1 0.8% type recrystallization agent, 2% water-soluble gelling agent, mix well with a mixer, press into a 240×115×53mm standard brick by a brick press, maintain for 2 weeks, compressive strength 11.5MPa, softening coefficient 0.67, one month , compressive strength 21.7MPa, softening coefficient 0.91.

Embodiment 2

[0034] By weight percentage, 72.5% of phosphogypsum, 13% of slag powder, 12.9% of phosphorus slag, R 2 0.6% type recrystallization agent, 1% emulsified adhesive, mix well with a mixer, and press it into a 240×115×53mm porous brick by a brick press. After 2 weeks of curing, the compressive strength is 13.7MPa, the softening coefficient is 0.63, and the compressive strength is one month. 27.3MPa, softening coefficient 0.93.

Embodiment 3

[0036] Percentage by weight, using 70% fluorine gypsum, 12% slag powder, 3% carbide slag, 11% pebble, R 3 Type recrystallization agent 1.0%, emulsifying gelling agent 1%, water 2%, mix well with a mixer, and then use a brick press to press into a 240×115×53mm standard brick, and maintain for 2 weeks, the compressive strength is 19.6MPa, and the softening coefficient 0.71, cured for one month, compressive strength 48.6MPa, softening coefficient 0.96.

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Abstract

A water-proof, fire-proof and high-strength brick without calcine is prepared from the rejected industrial gypsum, modified adhesive, aggregate and water through proportional mixing, stirring, die pressing, and curing.

Description

technical field [0001] The invention relates to a new type of building material, in particular to a technology for comprehensively utilizing industrial waste slag and auxiliary gypsum to manufacture high-strength, water-resistant, fire-resistant and unburned bricks. Background technique [0002] The basic technology of gypsum application is to use heat treatment to make mature gypsum powder, such as building gypsum, high-strength gypsum, plastering gypsum, floor gypsum, fireproof mortar, etc. [0003] Industrial by-product gypsum refers to CaSO 4 or CaSO 4 2H 2 O is the main waste residue. At present, the application technology of industrial side gypsum at home and abroad can be summarized as follows: [0004] ① Partially replace natural gypsum as cement coagulation agent; [0005] ②Mature gypsum powder is produced by heat treatment after purification or direct heat treatment; [0006] ③ Manufacture of sulfuric acid by-product cement; [0007] ④ A small amount as a so...

Claims

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Application Information

Patent Timeline
02 May 2007
Publication
CN1955141A
IPC
C04B28/14
Inventors
尹小林