KR20010002568A - method of constructing for waterproof by mutilayer- composite - Google Patents

Abstract

PURPOSE: A construction method for multi-layer compound water-proofing is provided to prevent separation smong layers, and cracks of a water proofing layer, and improve the heat resistance, salt resistance, tensile strength and elongation, and reduce the term of work and cost. CONSTITUTION: A construction method for multi-layer compound water-proofing comprises the steps of; mixing asphalt, styrene-butadienes rubber, oil of naphthene group, filler(CaCO3) and petroleum resins at the temperature of 150-170 deg.C; bonding the composite to a water proof sheet; covering the unsaturated polyester resin of which the elongation is 40-100%, and the tensile strength is 100-200kg/cm<SP POS="POST">2</SP>; laying fiber glass before the resin is hardened, and then covering polyester resin on the fiber glass.

Description

{Method of constructing for waterproof by mutilayer- composite}

The present invention improves and complements the shortcomings of the conventional waterproof sheet, such as breakage of the waterproof sheet, lack of durability against the ultraviolet rays of the junction, and can be applied throughout the construction, civil engineering, particularly coastal landfills, port facilities starch, and various construction, civil The present invention relates to a multi-layer composite waterproof construction method that can be constructed according to requirements.

The conventional waterproof sheet is deteriorated due to the change of physical properties and the loss of melting due to the thermal fusion of the joints, the coating material is heated and applied on the site, there is a risk of environmental pollution, fire, burns in the city and lack durability There was a drawback of limited construction.

The present invention improves the defects of the joints and melting loss, environmental pollution, lack of durability, etc., which are disadvantages of the conventional waterproof sheet and coating material, and can be applied to all fields and can be constructed without connecting parts according to the requirements of various building structures. To provide a multi-layer composite waterproof construction method.

As a result of repeated studies to solve the problems of the conventional waterproof sheet as described above, a specific waterproof sheet is attached to a construction surface or a specific coating material is applied, and then a specific unsaturated polyester resin solution is applied thereon, and then glass fiber is applied. The present invention was completed by applying a polyester resin solution and spreading the glass fiber thereon to completely solve the defects of the conventional waterproof sheet.

The present invention attaches a specific waterproof sheet or coating a specific coating material on the construction, civil engineering, coastal landfill, port facilities, especially in salty areas, facilities, underground, rooftops, greening facilities and other waterproofing applications. It is a multi-layer composite waterproof construction method with no joints that penetrates the glass fiber by applying unsaturated polyester resin solution and then spreading the glass fiber and then applying the polyester resin solution on it.

According to such a construction method, there is no interlayer separation due to the excellent interlayer adhesion of each layer, and the waterproof layer has excellent waterproofing effect due to its strength, saline resistance, abrasion resistance, chemical resistance, impact resistance, tensile strength, tear strength, and the like.

Hereinafter, the waterproof sheet, the coating material, the unsaturated polyester resin liquid, and the polyester resin liquid used in the present invention will be described.

1. Waterproof sheet

50 to 60 parts by weight of solid asphalt with 85 to 100% penetration, 10 to 15 parts by weight of styrene-butadiene rubber, 10 to 15 parts by weight of naphthenic oil, 10 to 15 parts by weight of filler (CaCO ₃ ), and 5 to 10 petroleum resin The parts by weight (the total of each component were 100 parts by weight) were kneaded at 150 to 170 ° C., and the resultant kneaded product arrived on the release paper at a thickness of 1 to 3 mm to prepare a waterproof sheet.

2. Coating material

1) 60 to 70 parts by weight of liquid asphalt having a penetration of 85 to 100, 25 to 35 parts by weight of styrene-butadiene rubber latex, emulsifier, antifoaming agent, 0.5 to 1 part by weight of viscosity modifier, and 5 to 10 parts by weight of water (for each component 100 parts by weight in total) was kneaded at 70 to 85 ° C to prepare a liquid coating material.

2) 40 to 50 parts by weight of solid asphalt with a penetration of 85 to 100, 15 to 20 parts by weight of solid asphalt with a penetration of 10 to 20, 10 to 15 parts by weight of styrene-butadiene rubber, 10 to 15 parts by weight of naphthenic oil, and filler 10-15 parts by weight of (CaCO ₃ ) and 5-6 parts by weight of petroleum resin (the total of each component were 100 parts by weight) were kneaded at 130 to 150 ° C. to prepare a solid coating film.

3. Unsaturated Polyester Resin

A linear unsaturated polyester was prepared by reacting 30 to 40 parts by weight of diethylene glycol, 15 to 20 parts by weight of terephthalic acid, 5 to 10 parts by weight of adipic acid, 5 to 10 parts by weight of phthalic anhydride, and 5 to 10 parts by weight of maleic anhydride. 30-40 weight part of styrene and 3-5 weight part of cobalt compounds (drying material) were added, and the unsaturated polyester resin liquid was prepared. The elongation of this resin is 40 to 100%, and the tensile strength is 100 to 200 kg / cm 2.

4. Polyester resin solution

20 to 30 parts by weight of propylene glycol, 20 to 30 parts by weight of isophthalic acid and 15 to 20 parts by weight of maleic anhydride are reacted to prepare a linear polyester, 40 to 50 parts by weight of styrene and 3 to 5 parts by weight of cobalt compound (drying material). Part and 5-7 parts by weight of methyl alcohol were added to prepare a polyester resin solution.

Example 1

After cleaning the construction surface, remove the release paper from the waterproof sheet prepared in 1, attach to the construction surface and apply the resin solution of 3 above, lay the glass fiber and apply the resin solution of 4 above before the resin solution is cured. Penetrated into the glass fiber was waterproof construction so that the total thickness is 3 ~ 5㎜. The multilayer composite waterproof layer thus obtained had excellent salt water resistance, tensile strength of 100 kg / cm 2 or more, tear strength of 50 kg or more, and elongation rate of 1000% or more.

Example 2.

After cleaning the construction surface, apply the coating material prepared in 1) of 1 to 1.5mm thickness on the construction surface, apply the resin solution of 3 above, and lay down the glass fiber before curing the resin solution. The resin solution was applied to penetrate the glass fiber and waterproofed to a total thickness of 2.5 to 3 mm. The multilayer composite waterproof layer thus obtained was excellent in salt water resistance, had a tensile strength of 90 kg / cm 2 or more, a tear strength of 48 kg or more, and an elongation of 1500% or more.

Example 3.

In Example 2, except that the coating material prepared in 2) above was used instead of the coating material prepared in 2) above, it was waterproofed as in Example 2. Physical properties of the obtained multilayer composite waterproof layer were substantially the same as those in Example 2.

Example 4.

After attaching the waterproof sheet prepared in 1 above or the coating material prepared in 1 of 2 above to the construction surface, apply the resin solution of 3 above and cover the glass fiber on it before curing the resin solution. The resin solution was applied to penetrate into the glass fiber and waterproofed to a total thickness of 2.5 to 4.5 mm. Thus obtained multilayer composite waterproofing layer was excellent in saline resistance, tensile strength was 120 kg / cm 2 or more, tear strength was 60 kg or more, and elongation was 1000% or more.

Example 5.

Thin fiberglass was laid on the multilayer composite waterproof layer of Example 4, and a polyurethane or galcoat was applied to a thickness of 0.5 mm to finish. In addition to the physical properties of the multilayer composite waterproof layer of Example 4, the obtained multilayer composite waterproof layer was excellent in abrasion resistance, chemical resistance, heat resistance, and ultraviolet resistance.

According to the present invention, the multilayer composite waterproof layer has a structure in which a glass fiber layer in which a waterproof sheet, a coating material, an unsaturated ester resin, and a polyester resin penetrate is laminated, there is no connection site, and there is no separation between layers, and heat resistance, abrasion resistance, salt water resistance, Excellent chemical resistance, tensile strength, tear strength, elongation rate is large, shows excellent waterproof effect over a long period of time.

Claims (4)

Asphalt, styrene-butadiene rubber, naphthenic oil, filler and petroleum resin were kneaded at 150 ~ 170 ℃ on the construction surface, and the resulting kneaded product arrived on the release paper. The multilayer composite waterproof construction method of apply | coating the resin liquid of unsaturated polyester of 100-200 kg / cm <2> of strength, and spreading glass fiber and apply | coating polyester resin liquid on it before hardening of resin liquid. The multilayer composite waterproof construction method according to claim 1, wherein the unsaturated polyester resin solution is applied, the glass fiber is laid, and the polyester resin solution is applied twice. The multi-layer composite waterproof construction method according to claim 2, wherein the thin glass fiber is further coated, and a polyurethane or galcoat is applied to a thickness of 0.5 mm to finish the treatment. A coating material prepared by kneading asphalt, styrene-butadiene rubber latex, naphthenic oil, filler, petroleum resin, emulsifier, antifoaming agent, and viscosity modifier on the construction surface, and has elongation of 40-100%, tensile strength 100-200 The multilayer composite waterproof construction method of apply | coating the resin liquid of kg / cm <2> unsaturated polyester, and spreading a glass fiber and apply | coating polyester resin liquid on it before hardening of a resin liquid.