CN101544856A

CN101544856A - External wall putty

Info

Publication number: CN101544856A
Application number: CN200910039141A
Authority: CN
Inventors: 陈永坚; 朱建龙
Original assignee: GUANGFU BUILDING MATERIALS (JIAOLING) FINE CHEMICALS INDUSTRY Co Ltd
Current assignee: GUANGFU BUILDING MATERIALS (JIAOLING) FINE CHEMICALS INDUSTRY Co Ltd
Priority date: 2009-05-04
Filing date: 2009-05-04
Publication date: 2009-09-30
Anticipated expiration: 2029-05-04
Also published as: CN101544856B

Abstract

The invention relates to external wall putty, which comprises two components of A and B according to following weight percentage: component A comprises 30-40 percent of heavy calcium carbonate, 5-15 percent of talcum powder, 25-35 percent of quartz sand, 25-30 percent of Portland, 42.5 of cement, 1-3 percent of subdividable latex powder, 0.2-0.5 percent of ethoxyl methyl cellulose ether, and 0.02-0.1 percent of modified starch ether; component B is 5-12 percent of crylic acid latex; assorting ratio of component A and B is 100:5-12. The external wall putty has the advantages that cracks and pores can be padded; after hard drying, the product is characterized by strong adhesion force, good water resistance and corrosion resistance, smooth surface layer, crack control, and good impact resistance; after tested, 0.8 MPa is reached under a standard state in terms of bond strength; after five times of freeze-thaw cycles, bond strength of the putty reaches 1.03 MPa; the putty can be extensively applied to alteration and face lifting of external walls, which provides smooth underside base material for applying dope.

Description

Exterior wall putty

Technical field

The invention belongs to building material field, relate to a kind of pair of component exterior wall putty.

Background technology

Present exterior wall putty has varied, is mainly used in cement wall surface, mixes the earth metope, and intensity does not wait.Exterior wall putty is to some ceramic tile metopes, when the mosaic metope carries out renewal and reform, and there are defectives such as sticking power is not strong, water tolerance is relatively poor in putty.

Summary of the invention

Purpose of the present invention just provides a kind of strong adhesion, and water tolerance is fabulous, the putty that suitable exterior wall is used.

The present invention can realize in the following manner: exterior wall putty is by forming according to two components of following weight percentage calculation A, B: the A component is 30～40% water-ground limestones, 5～15% talcum powder, 25～35% quartz sands, 25～30% Portlands, 42.5 cement, 1～3% redispersable latex powder, 0.2～0.5% hydroxyethylmethyl-cellulose ether, 0.02～0.1% treated starch ether; The B component is 5～12% ACRYLIC EMULSION; The A component is 100: 5～12 with the ratio that cooperates of B component.

Described water-ground limestone is 250～500 orders.

Described talcum powder is 250～500 orders.

Described quartz sand 100～150 orders.

Water-ground limestone is a kind of important stable inorganic environment-friendly stopping composition; Top layer smooth feeling after lubricated sense of talcum powder increase construction and putty are done something in disregard of obstacles; The quartz sand water regain is low, improves workability, increases the impact strength after the doing something in disregard of obstacles of aggregate; Portland 42.5 cement are a kind of hydraulicity binding materials, increase putty intensity, and the sticking power function; Redispersable latex powder increases putty water tolerance and intensity, easily construction, anti-cracking performance; Hydroxyethylmethyl-cellulose ether increases putty water-retentivity and thickening, anti-cracking, easily workability; Treated starch ether increases the putty anti-sag, anti-cracking, easily workability.ACRYLIC EMULSION can improve cement base products intensity, weather resistance, snappiness, resistance to abrasion and sticking power and the low viscosity emulsion that designs.

Exterior wall putty of the present invention is suitable for mosaic, ceramic tile, marble, grouan, the surface of wall of brick, can fill up the crack aperture, after doing something in disregard of obstacles, product has strong adhesion, water tolerance and resistance to abrasion are good, the top layer is smooth, anticracking, good impact resistance characteristics, putty of the present invention after testing, on cohesive strength, standard state is issued to 0.8MPa, behind freeze-thaw cycle 5 times, the cohesive strength of putty reaches 1.03MPa, and the cohesive strength under the state that is above standard embodies the performance that has good weather and overcome external stress, can be widely used in external wall reconstruction renovation, for the use of coating provides soft and smooth bottom surface base material.

Embodiment

Below in conjunction with embodiment, the invention will be further described, but it is not represented as unique embodiment of the present invention.

Embodiment one

The A component is 30 kilograms of orders, 250 order water-ground limestones, 5 kilogram of 500 order talcum powder, 35 kilogram of 100 order quartz sand, 28.48 kilograms of Portland 42.5 cement, 1 kilogram of redispersable latex powder, 0.5 kilogram of hydroxyethylmethyl-cellulose ether, 0.02 kilogram of treated starch ether;

The B component is 12 kilograms of ACRYLIC EMULSION;

A component and B component composition one cover are made two component exterior wall putties.

Embodiment two

The A component is 31.7 kilogram of 500 order water-ground limestone, 15 kilogram of 250 order talcum powder, 25 kilogram of 150 order quartz sand, 25 kilograms of Portland 42.5 cement, 3 kilograms of redispersable latex powders, 0.2 kilogram of hydroxyethylmethyl-cellulose ether, 0.1 kilogram of treated starch ether;

The B component is 5 kilograms of ACRYLIC EMULSION;

Using method of the present invention:

1, use preceding the preparation:

Remove with jet of water that all relax, easily come off, flecked material, treat the top layer airing after, just can construct; Also other instrument such as available iron hammer is beaten lax material and is become broken and remove, and provides a clean surface for putty uses construction.

2, combination process:

20～30 kg water are poured in 5～12 kilograms of B components, added double centner A component and constantly stirring again, prevent that the A component from forming powder ball; Under 30 ℃, this mixing material still can use in 3 hours.

3, construction:

After the mixing material for preparing left standstill 5～10 minutes, paint cutter and trowel is constructed, carry out second time recoat after doing something in disregard of obstacles as required, or carry out recoat as required the 3rd time, the gauge control of every time construction is in 0.5mm, polish flat after 2 days, just can carry out coating application in the above.

Claims

1, a kind of exterior wall putty is characterized in that by forming according to two components of following weight percentage calculation A, B:

The A component is 30～40% water-ground limestones, 5～15% talcum powder, 25～35% quartz sands, 25～30% Portlands, 42.5 cement, 1～3% redispersable latex powder, 0.2～0.5% hydroxyethylmethyl-cellulose ether, 0.02～0.1% treated starch ether;

The B component is 5～12% ACRYLIC EMULSION;

The A component is 100: 5～12 with the ratio that cooperates of B component.

2, a kind of exterior wall putty according to claim 1 is characterized in that water-ground limestone is 250～500 orders.

3, a kind of exterior wall putty according to claim 1 is characterized in that talcum powder is 250～500 orders.

4, a kind of exterior wall putty according to claim 1 is characterized in that quartz sand 100～150 orders.