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Hollow partition slab made of broken straw and cement and its preparing process

A technology of partition wall slats and broken wires, which is used in ceramic products, other household appliances, building components, etc.

Inactive Publication Date: 2003-02-12
黄华大
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned defects of only straw cement veneer and complex processing and maintenance technology, the present invention provides a straw shredded cement hollow partition wall slat and its preparation method, which uses straw shredded shreds as filler, ordinary cement as cementing material, and adds Active fillers and chemical additives are extruded and formed under normal temperature and pressure, and then cured to form an environmentally friendly lightweight partition wall panel. Equal to 0.75mm / M, the process is simple, the cost is low, and it has excellent weather resistance and durability. It is an excellent enclosure material and partition wall material for low, medium and high-rise buildings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1. Weigh 50kg of water, add 3kg of calcium chloride, 3.0kg of aluminum sulfate, 7kg of water glass, mix and stir to form a uniform aqueous solution

[0019] 2. Weigh 120kg of cement, 20kg of gypsum powder, 20kg of fly ash, 20kg of quartz sand, 25kg of shredded straw, 0.5kg of wood calcium powder, and 1.5kg of alkali-resistant glass fiber. Stir in the mixer for 3 to 4 minutes, then add cement, gypsum powder, fly ash, quartz sand, wood calcium powder, and fully stir in the mixer to form a uniform mixed slurry;

[0020] 3. Feed the mixed slurry and alkali-resistant glass fiber into the mold and process it into hollow partition wall slats. After resting for 6-8 hours, the mold can be removed, and the product can be obtained after 28 days of curing. Test results: 1. Hollow rate 68%

[0021] 2. Shrinkage value: 0.68mm / M

[0022] 3. Bending failure load: 4.4 times of the board's own weight.

Embodiment 2

[0024] 1. Weigh 50kg of water and add 3kg of calcium chloride, 1.5kg of aluminum sulfate, 1.5kg of magnesium chloride, 7kg of water glass, mix and stir to form a uniform aqueous solution;

[0025] 2. Take 100kg of cement, 20kg of fly ash, 20kg of quartz sand, 25kg of straw shreds, 0.5kg of wood calcium powder, 1.5kg of alkali-resistant glass fiber wire and all the aqueous solutions in step 1, and put the straw shreds and aqueous solution in the mixer Stir for 3 to 4 minutes, then add cement, fly ash, quartz sand, wood calcium powder, and fully stir in the mixer to form a uniform mixed slurry;

[0026] 3. Put the mixed slurry and alkali-resistant glass fiber into the special hollow light-weight partition wall strip flat mold and process it into a hollow partition wall strip. After resting for 6 to 8 hours, the mold can be removed, and it will be finished after 28 days of curing. product.

[0027] Test results: 1. Hollow rate 68%

[0028] 2. Shrinkage value: 0.68mm / M

[0029]...

Embodiment 3

[0031] 1. Weigh 50kg of water, add 6kg of calcium chloride, 7kg of water glass, mix and stir to form a uniform aqueous solution

[0032] 2. Weigh 95kg of cement, 25kg of fly ash, 25kg of silica fume, 20kg of shredded straw, 0.5kg of wood calcium powder, 1.5kg of alkali-resistant glass fiber and all the aqueous solutions in step 1, and put the shredded straw and aqueous solution in the mixer Stir for 3 to 4 minutes, then add cement, fly ash, silica fume, wood calcium powder, and fully stir in the mixer to form a uniform mixed slurry;

[0033] 3. Send the mixed slurry into the special extruder to extrude the hollow slab, cut it according to the required length, hold the slab with a steel pallet, and send it to the maintenance equipment for a certain period of time to complete the product. Test results: 1. Hollow rate 58%

[0034] 2. Shrinkage value: 0.72mm / M

[0035] 3. Bending failure load: 4.4 times of the board's own weight.

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Abstract

A hollow partition lath made of stalk fibre cement used in the enclosure wall and internal partition of building contains strew or stalk fibres (10-18 wt.%), active filler (20-30), cement (45-55), chemical additive (5-8), water-reducing agent (0.2-0.5) and alkali-resistant glass fibres (0.5-1). Its advantages are high hollow rate (more than 55%), good bending strength, durability and weatherability, and low cost and shrinkage.

Description

[0001] Field [0002] The invention relates to straw broken silk cement hollow partition wall slats and a preparation method thereof. Background technique [0003] In the prior art, boards made of straw and cement are usually made of veneers, such as Chinese patent ZL92104363.5 "Plant Fiber Cement Composite Board" and "Wheat Straw Cement Particle Board" generally use straw as filler, cement It is a cementing material, which is formed by cold pressing with a hydraulic press, clamping and curing. The process is very complicated, and it can only be made into a partition wall after compounding. Contents of the invention [0004] Aiming at the above-mentioned defects of only straw cement veneer and complex processing and maintenance technology, the present invention provides a straw shredded cement hollow partition wall slat and its preparation method, which uses straw shredded shreds as filler, ordinary cement as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02
CPCC04B2111/34C04B28/02Y02W30/91C04B14/00C04B14/42C04B18/24C04B22/08C04B38/0074C04B2103/302
Inventor 黄华大
Owner 黄华大
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