KR950014703B1 - Process for producing lightweight brick - Google Patents

Abstract

The lightweight brick is manufactured by (A) mixing 80% synthetic lightweight aggregate, 3% stone powder, 7% glass fiber and 10% unsaturated polyester; (B) charging the mixture in a mold, while vibrating with a vibrator; (C) releasing the mixture from the mold after natural curing; and (D) cutting it into the size of a brick or block. The synthetic lightweight aggregate is prepared by mixing soil and a little bit of metal powder with water to make spherical product with a diameter of 5-20mm, and calcining the product in a rotary heating kiln at 1100-1200 deg.C.

Description

Light brick manufacturing method

The present invention relates to a light brick manufacturing method.

Conventional bricks, that is, bricks made by mixing sand and cement, are heavy, consume a lot of manpower, have a high rate of breakage, and have a large influence on the weight of buildings. Insulation and soundproof functions are almost impossible to expect, so there is a closed end that requires the use of a separate insulation or soundproofing material, and the tendency of the brick with insulation and reaction function is required. As an auxiliary aggregate, it is mixed with cement using briquettes, vermiculite, perlite and sludge. Molding to prepare a light brick. However, such lightweight bricks have some effect of tendency, but the excessive use of cement to maintain the strength of the bricks reduces the insulation and sound insulation effect, as well as the auxiliary aggregates such as briquettes, vermiculite, perlite and sludge. Due to the different specific gravity and mixing, it is not uniformly mixed and lacks cohesiveness, so it is weak in weathering and has a lot of failure rate.

In addition, lightweight bricks made of portland or magnesia cement, etc. using lightweight materials such as vermiculite, perlite, sludge, etc., which form a large amount of pores with rapid penetration of air and water, are made of Portland or magnesia cement. It is a disadvantage that is not waterproof.

In view of the above, the present invention has been made of a suitable size by adding a small amount of metal powder (iron oxide, or other metal powder) in order to form a variety of pores in the soil and surface treatment that can act as a crack-proofing waterproofing Artificial aggregate, stone powder, and glass fiber unsaturated polyester resin, mixed by firing water in a thermal rotary kiln, are filled in bricks, vibrated by vibrator, and naturally cured. Maintain strength of 60㎏ / ㎡-8㎏ / ㎡ and use synthetic polyester resin, unsaturated polyester resin as adhesive instead of cement, maintains the strength of the raw materials that are immature in the production process of lightweight artificial aggregate, the main raw material of the present invention It strengthens the oxidation prevention of the metal coating part coated on the surface of the aggregate. And the pores of the air which is led to an increase in scattered sikimeuroseo insulation and sound insulation and the outer block, if more detailed description of the present invention as being waterproof also be obtained with an embodiment as follows.

EXAMPLE

1. Form artificial lightweight aggregate by firing the scripture which was composed of soil and trace metal powder (iron oxide or other metal powder) with water and sintered in the diameter of 5mm-20mm in a thermal rotary kiln of 110 ~ 1200 ℃. do.

2. Add 80% artificial light aggregate, 3% stone powder (fine granite, etc.), 7% glass fiber, unsaturated polyester resin (more than 60% of synthetic resin, less than 40% of styrene monomer) as a coagulant, and mix do.

3. After filling the mixed mixture into the mold, give a vibrator and vibrating it like natural brick.

4. Cut the cured curable into brick or block size.

As the brick is molded as described above, the plastic molded artificial aggregate is lightweight, and thus, the weight of the brick can be reduced. Since the unsaturated polyester resin is mixed and used as the adhesive of the artificial lightweight aggregate, the unsaturated polyester resin is applied to the surface of the lightweight aggregate. The aggregates are bonded to each other to cover the pores of the lightweight aggregates, thereby blocking the air and the outside inherent in the pores, so that the pores can be insulated and soundproofed, and the lightweight aggregates are immature in the production process. It maintains the strength of the aggregate and is contained in the light weight aggregate, thereby preventing the oxidation of iron oxide and the like exposed to the surface. In addition, since the unsaturated polyester resin is applied to the surface of the light weight aggregate, the light weight aggregate becomes waterproof, so that the brick made of the light weight aggregate has a waterproof effect. Stone powder and glass fibers help to solidify the unsaturated polyester and contribute to the increase of strength of the solidified unsaturated polyester.

The weight bricks formed as described above maintain the compressive strength of 6㎏ / ㎡-8㎏ / ㎡, specific gravity is 0.4g / ㎡ ² and the thermal conductivity is 0.3-0.12Kcalmbc. By reducing the heavy weight of the giant, not only can reduce the cost of the skeleton, but also less manpower, and do not need to insulate, separate insulation, construction cost reduction and air shortening effect can be obtained.

Claims (1)

In the manufacturing method of light weight brick, which is mainly composed of soil and trace metal powder, heat-rotation of 1,200 ~ 1200 ℃ of a scripted material composed of soil and trace metal powder with water and having a diameter of 5mm ~ 20mm 80% of artificial lightweight aggregates fired in a kiln are mixed with 3% of stone powder, 7% of glass fiber, and 10% of unsaturated polyester resin, and then vibrated with a filling vibrator in the mold to demould after natural curing to cut and cut into brick or block size. Light brick manufacturing method characterized in that.