KR790001272B1 - Method of manufacture for light material of building - Google Patents

Abstract

A manufacturing method utilized heat treatment after the unifomly composing and forming the material by adding hardening mixture and organic polymer subs. to briquet ash. and applying pressure. Briquet ash was crushed into fine (0.1-0.5mm) and coarse (1-2mm) material, then the characteristics of light wt. and colouring and isolation, intensity of prods. were upgraded by heating and pressurized forming the uniform mixture of organic polymer subs. and hardening mix. in the mould. The organic polymer subs. were composed of acrylic resin and nitric vinyle resin (65wt%), soluable phenolic resin (15wt%), acrylamide (20wt%).

Description

Manufacturing method of lightweight building materials

The present invention relates to a method for producing a light weight brick using briquettes.

In particular, the present invention relates to a method of preparing a briquette, an organic polymer composition, and a curing accelerator mixture by forming a predetermined amount and then pressing and molding the mixture.

Conventionally, in the manufacture of bricks and blocks, the material to be treated is mainly mixed with an inorganic material, followed by hydrothermal treatment.

In addition, the organic polymer composition of the briquette brick and the block forming material should accelerate the curing to improve the product properties such as strength and thermal insulation. The brick by the vinyl emulsion zone treatment has a high water immersion rate and has low water resistance. Bricks treated with an aqueous urine resin solution were easily cracked due to severe cracking.

In view of the drawbacks of the present invention, briquettes are pulverized into fine aggregates (0.1-0.5 mm in diameter) and coarse aggregates (1-2 mm in diameter), and then mixed with an organic polymer composition and a curing accelerator mixture in a predetermined amount, followed by press molding in a molding machine. It is an object of the present invention to provide a lightweight building material to improve the strength, heat insulation, water resistance, colorability and light weight of the product by heat treatment.

The organic polymer composition according to the present invention is based on a copolymer of a certain amount of a vinyl acetate emulsion and an acrylic emulsion, and is treated as an initial condensate of the phenol resin so that the molar ratio of phenol and formaldehyde is 1: 1.5 or less. Water-soluble phenolic resin with 6-7% of water, 40-50% of water and pH 8-12 as a reinforcing agent, and acrylamide obtained by treating acrylonitrile as a supplement was used as a main ingredient, a reinforcing agent and a supplement. The composition was quenched and quenched by a certain amount, and their compositions were emulsified to exhibit flexibility in the subject matter, curability in the reinforcing agent, and elasticity and flexibility in the supplement.

Such a composition is strongly bonded when acting with the particles of the briquette material, thereby forming physical properties such as blocking the air, preventing shrinkage, peeling strength and water resistance.

In addition, it enhances the binding force between the added processing material. That is, briquettes are porous in their physical properties, so fine aggregates and coarse aggregates are separated, and the organic polymer composition is primarily mixed with the fine particles of fine aggregates and combined with the hardening accelerator mixture to fill the pores of coarse aggregates to promote hardening. Minimizes the bubble generation of the product and reduces the absorption rate, densifying the structure of the product. Therefore, it increases the strength of the product.

Thus, by bridging the briquette material according to the particle size to further improve the physical properties of the product.

The organic polymer composition used in the present invention is a quench and quench treatment of a composition consisting of about 65 wt% of a main copolymer of acrylic resin and vinyl acetate resin at 35:30, about 15 wt% of a reinforcing agent as a water-soluble phenolic resin, and about 20 wt% of acrylamide as a supplement. What was prepared is used as a stock solution and diluted according to the purpose of the object.

In addition, the hardening accelerator mixture of the present invention refers to a mixture of sodium silicate, calcium hydroxide, and magnesium oxide in a ratio of 3: 6: 1, wherein sodium silicate is insoluble calcium silicate in combination with soluble calcium hydroxide as a clathrate silicate. In order to accelerate hardening, magnesium oxide is actuated to quench and at the same time shorten the dehydration drying time.

Hereinafter, the present invention will be described by process.

First step (mixing of briquettes, mixing with organic polymer composition and curing accelerator mixture)

The briquette is pulverized into fine aggregate (diameter 0.1-0.5mm) and coarse aggregate (diameter 1-2mm), and 10-15 wt% of fine aggregate of briquettes is charged into the first mixer, such as 10-15wt% of the curing accelerator mixture, and then mixed. Charge into a secondary mixer and mix 15-20 wt% of the organic polymer composition with 55-60 wt% of coarse aggregate of briquettes while stirring and mixing at a speed of 80-130 rpm.

2nd process (molding compression process)

The mixture completed in the first step is brought into a molding machine and subjected to compression molding.

At this time, compression molding is performed at 50-250kg / cm 2 depending on the product.

Third process (curing process)

The compression molded product in the second process is moved by a conveyor, hydrothermally treated at 150-200 ° C. for 2-4 hours in a curing machine, and then cured.

The product treated in this way is more than twice as lightweight as the cement brick, the cement brick is broken at 400 ℃ but this product is not broken at 1,500 ℃, the thermal conductivity is less effective as an insulating material. In addition, the colorability is better than the conventional ones, and up to six test results are possible.

Compared with the conventional products and products processed by the present invention are as follows.

Therefore, it can be seen that the present product is a light weight, strong strength and extremely low absorption brick.

When described according to an embodiment of the present invention.

Example 1

[Step 1]

The fine aggregate 255 gr of briquettes are charged into a first mixer such as 250 gr of a hardening accelerator mixture (sodium silicate 3: calcium hydroxide 6: magnesium oxide 1), and then charged into a second mixer. While stirring and mixing at a speed, 840 gr of briquette coarse aggregate was added and mixed.

Second Process

The mixture completed in the first step was brought into a molding machine, compression molded at 200㎏ / ㎠ and spontaneously cured and hydrothermally treated at 170 ℃ for 4 hours, and measured as brick (6x9x19㎝) after 2 weeks. SK) 10, water absorption (%) 12.8, thermal conductivity (Kcal / mh ° C) 0.362, and specific gravity 1.4 g / cm 2.

Claims (1)

In the manufacture of light brick using briquette materials, an organic polymer composition comprising about 65wt% of copolymer of acrylic resin and vinyl acetate resin, 15wt% of water-soluble phenolic resin, and 20wt% of acrylamide is used for the manufacture of lightweight building materials. Way.