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Assembling type building material and preparation method thereof

A building material and assembly technology, applied in the field of building material preparation, can solve the problems of no aldehyde and no glue, etc., and achieve the effect of good waterproof performance, light weight and compact structure

Inactive Publication Date: 2019-07-23
鲁兵 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of plant straws to prepare prefabricated building materials has been reported, but plant straws are only added in small amounts as auxiliary components, and there is no report on the preparation of prefabricated building materials using plant straws as the main ingredient. At the same time, most of the adhesive materials used are organic. Products, there is a saying "no aldehyde, no glue". Aldehyde adhesives will release harmful gases, such as benzene, phenol, formaldehyde and other carcinogens. Formaldehyde is a "health killer" for many diseases such as leukemia. Healthy and environmentally friendly The binder is the current development needs of the

Method used

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  • Assembling type building material and preparation method thereof
  • Assembling type building material and preparation method thereof
  • Assembling type building material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1: Body of wall brick (size: 240mm * 115mm * 53mm)

[0053] Formula: 50kg of wheat straw, 15kg of sawdust, 10kg of quartz sand, 10kg of 48wt% sodium hydroxide solution, 5kg of urea, 3kg of silica sol (neutral), 1kg of silicone oil.

[0054] Preparation:

[0055] 1) Crushing the wheat straw to debris with a particle size of 0.5-1cm, crushing the sawdust to debris with a particle size of 0.5-1cm, and pulverizing the quartz sand to pass through a 120-mesh sieve;

[0056] 2) Put the pulverized quartz sand and 48wt% sodium hydroxide solution into the reaction kettle, pressurize the steam to 1MPa and react for 34-50 hours, and the filtrate is 60 degrees Baume (°Bé).

[0057] 3) Add urea to the filtrate (together with unreacted quartz sand) to fully dissolve the urea, then add wheat straw and sawdust mixed debris and stir well (speed 600-1000r / min, stirring time 5-10min ), control the reaction temperature below 40°C, so as not to cause agglomeration, which is not ...

Embodiment 2

[0066] Embodiment 2: Interior decoration material (floor: 910mm×120mm×18mm)

[0067] Formula: 60kg of corn stalks, 10kg of quartz sand, 10kg of 48wt% sodium hydroxide solution, 5kg of urea, 2.5kg of silica sol (neutral), and 1.5kg of silicone oil.

[0068] Preparation:

[0069] 1) crushing corn stalks to 120 mesh, crushing and refining quartz sand to pass through a 120 mesh sieve;

[0070] 2) First add quartz sand and 48wt% sodium hydroxide solution into the reaction kettle, pressurize the steam to 1 MPa and react for 34 hours to 50 hours, and the filtrate is 60 degrees Baume (°Bé).

[0071] 2) Add urea to the filtrate (together with unreacted quartz sand) to fully dissolve the urea, then add corn stalk debris and stir well (rotational speed 600-1000r / min, stirring time 5-10min), control the reaction temperature Below 40°C to avoid agglomeration, which is not conducive to molding;

[0072] 3) Put the material in step 2) into the mold, and heat press (temperature 50-60° C.) ...

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Abstract

The invention discloses an assembling type building material and a preparation method thereof. According to the assembling type building material, plant wastes containing lignose and cellulose such asplant straws are used as a main raw material, and quartz sand and sodium hydroxide are subjected to reaction to generate a sodium silicate type substance; then urea is added to enhance the viscosityof the sodium silicate type substance, so as to form an adhesive; then the assembling type building material is prepared by mixing, filling pores of the plant wastes with the quartz sand, molding, carrying out surface spraying and ageing. The assembling type building material prepared by the preparation method has the advantages of light weight, low shrinkage rate, good heat preservation and insulation performance and the like, and can be completely used for various buildings including low-rise, mid-rise and high-rise buildings.

Description

technical field [0001] The invention relates to a prefabricated building material and a preparation method thereof, belonging to the technical field of building material preparation. Background technique [0002] After crops are harvested, a large amount of plant stalks are produced. These plant stalks are piled up in the field, which affects field management, or are buried in the soil after being crushed by returning the straw to the field. These substances cannot be decomposed in the soil in the same year, making it difficult for the next crop to emerge after sowing, which affects the emergence rate and final yield. Some farmers also use incineration. During the burning of plant stalks, carbon dioxide gas, smoke and dust are produced, polluting the air. [0003] In urban greening, a large amount of waste such as branches and leaves is generated during the pruning of indoor landscape plants. In the process of grain processing, a large amount of underutilized substances ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B41/65
CPCC04B28/26C04B41/50C04B41/65C04B2111/00017C04B2201/50C04B24/126C04B14/06C04B18/24
Inventor 鲁兵曹光荣
Owner 鲁兵
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