CN102557546A - Building outer wall inorganic heat-preserving board adhesive mortar and construction method - Google Patents

Abstract

The invention provides building outer wall inorganic heat-preserving board adhesive mortar and a construction method and belongs to the fields of production and a construction method of building materials. The mortar is prepared by adding water into raw materials comprising 35 to 40 parts of cement, 55 to 63 parts of quartz sand, 3 to 6 parts of coal ash, 0.6 to 1.4 parts of dispersible latex powder, 0.1 to 0.2 part of hydroxypropyl methyl cellulose, 0.2 to 0.4 part of latex powder optimizing agent and 0.2 to 0.4 part of mortar optimizing agent and stirring uniformly, wherein the weight ratio of the raw materials to the water is 1: (0.20-0.23); and the mixture stands for 4 to 6 minutes to be aged. The construction method comprises the following steps: a) eliminating the surface of the base layer of the wall surface; b) leveling the wall surface by using cement mortar; c) preparing adhesive mortar; and d) adhering a heat-preserving board to the wall surface by a full adhesion method. The building outer wall inorganic heat-preserving board adhesive mortar is reasonable in formula, low in production cost, high in bonding strength and high in flexibility. The construction method is simple and convenient in construction; and the board is high in bonding strength, is not removed when absorbing water and can reach the regulated bearing weight without being strengthened by rivets.

Description

External wall inorganic heat preservation plate adhesive mortar and constructional method

(1) technical field

The present invention relates to a kind of production and constructional method thereof of material of construction, specifically a kind of external wall inorganic heat preservation plate adhesive mortar and constructional method.

(2) background technology

Along with the continuous propelling and the development of China's building energy conservation external wall outer insulation engineering, the Chinese government is decided to be fundamental state policy to energy-saving and emission-reduction, and the building energy conservation external wall outer insulation has been classified compulsory standard as.In the building energy conservation external wall outer insulation engineering of our province, (1) causing cracking to take off the plate phenomenon because adhesive mortar mass defect, cohesive force are not enough, mortar strength is too high, poor adhesive force, sheet material are loosening; So an iron hand in a velvet glove adhesive mortar that requires also will have certain snappiness under the situation that guarantees cohesive strength.(2) conventional construction method is loaded down with trivial details, and high to workmen's technical requirements, the construction standardization lower velocity waits phenomenon slowly.

(3) summary of the invention

Technical assignment of the present invention is a problem high to prior art adhesive mortar cost, the snappiness difference; Provide a kind of production cost low; Cohesive strength is high, receives wet back cohesive strength constant, has certain flexible external wall inorganic heat preservation plate adhesive mortar under the situation of intensity satisfying; A kind of easy construction also is provided simultaneously, the constructional method that the quality safety coefficient is high.

The technical solution adopted for the present invention to solve the technical problems is:

External wall inorganic heat preservation plate adhesive mortar, this mortar are to add water by following materials based on weight to mix:

Cement: 35-40 part, silica sand: 55-63 part, flyash: 3-6 part,

Polymer dispersion powder: 0.4-1.0 part, Vltra tears: 0.1-0.2 part,

Rubber powder is optimized plain: 0.2-0.4 part, and mortar is optimized agent: 0.2-0.4 part,

The raw material of above-mentioned parts by weight is added entry, stir and process mortar, the weight of said raw material: the weight of water=1: 0.20-0.23, placed slaking 4-6 minute.

Said cement is general silicate cement.

Said silica sand is 40-120 purpose grating silica sand.

Said flyash is more than secondary, between the 180-220 order.

Said polymer dispersion powder adopts Germany's watt gram latex powder, and its model is re5010 or re4023.

Said Vltra tears, the viscosity unit of its HPMC is 40,000-100,000.

It is the function building auxiliary agent that said rubber powder is optimized element.

It is the function building auxiliary agent that said mortar is optimized agent.

The working method of above-mentioned external wall inorganic heat preservation plate adhesive mortar, this method is carried out according to following steps:

A) remove the metope substrate surface: remove the foreign matter that substrate surface dust, dirt etc. influence cohesive strength;

B) use the cement mortar screeding metope: protruding, empty swollen and porous spot should be rejected also levelling, and screed-coat should be firm with the body of wall bonding, and delamination, hollowing, crack must not be arranged, and surface layer must not have phenomenons such as efflorescence, peeling, quick-fried ash;

C) preparation adhesive mortar;

D) heat preservation plate material is pasted metope: the adhesive mortar for preparing among the step c is pasted heat preservation plate material with completely sticking method; The gluing tacky area is not less than 50%; Paste evenly extruding on the metope,, available palm or rubber taper knock fixing gently; And the switchboard face is smooth, the discrepancy in elevation, spacing between vertical and adjacent panel, and panel area is extruded the gluing mortar and should in time be cleared up.

External wall inorganic heat preservation plate adhesive mortar of the present invention and constructional method compared with prior art, the beneficial effect that is produced is:

1) external wall inorganic heat preservation plate adhesive mortar prescription of the present invention is reasonable, and production cost is low, and cohesive strength is high, and snappiness is good;

2) constructional method of adhesive mortar of the present invention, easy construction, the sheet material caking ability is high, and suction does not come off, do not need holdfast to reinforce still can reach the regulation load capacity.

(4) embodiment

Embodiment 1:

External wall inorganic heat preservation plate adhesive mortar of the present invention is to add water by following materials based on weight to mix:

40 parts of cement, 55 parts of silica sands, 3 parts in flyash; 1.0 parts of polymer dispersion powders, 0.2 part of Vltra tears, rubber powder are optimized plain 0.2 part; Mortar is optimized 0.2 part of agent, and the raw material of said parts by weight is added entry, stirs and processes mortar; The weight of said raw material: the weight of water=1: 0.20, placed slaking 5 minutes.

The performance of the adhesive mortar that above-mentioned prescription makes and will ask for an interview to table 1.

The performance index of table 1 adhesive mortar (and requirement)

The constructional method of above-mentioned external wall inorganic heat preservation plate adhesive mortar, this method is carried out according to following steps:

A) remove the metope substrate surface: remove the foreign matter that substrate surface dust, dirt etc. influence cohesive strength;

B) use the cement mortar screeding metope: protruding, empty swollen and porous spot should be rejected also levelling, and screed-coat should be firm with the body of wall bonding, and delamination, hollowing, crack must not be arranged, and surface layer must not have phenomenons such as efflorescence, peeling, quick-fried ash;

C) preparation adhesive mortar;

D) heat preservation plate material is pasted metope: the adhesive mortar for preparing among the step c is pasted heat preservation plate material with some frame or the sticking method of bar, and the gluing tacky area is not less than 50%, pastes evenly extruding on the metope.

Embodiment 2:

External wall inorganic heat preservation plate adhesive mortar of the present invention is to add water by following materials based on weight to mix:

35 parts of cement, 58 parts of silica sands, 5.5 parts in flyash; 0.6 part of polymer dispersion powder, 0.2 part of Vltra tears, rubber powder are optimized plain 0.4 part; Mortar is optimized 0.3 part of agent, and the raw material of said parts by weight is added entry, stirs and processes mortar; The weight of said raw material: the weight of water=1: 0.23, placed slaking 4 minutes.

The performance of the adhesive mortar that above-mentioned prescription makes and will ask for an interview to table 2.

The performance index of table 2 adhesive mortar (and requirement)

The constructional method of said external wall inorganic heat preservation plate adhesive mortar is characterized in that this method is carried out according to following steps:

A) remove the metope substrate surface: remove the foreign matter that substrate surface dust, dirt etc. influence cohesive strength;

B) use the cement mortar screeding metope: protruding, empty swollen and porous spot should be rejected also levelling, and screed-coat should be firm with the body of wall bonding, and delamination, hollowing, crack must not be arranged, and surface layer must not have phenomenons such as efflorescence, peeling, quick-fried ash;

C) preparation adhesive mortar;

D) heat preservation plate material is pasted metope: the adhesive mortar for preparing among the step c is pasted heat preservation plate material with some frame or the sticking method of bar, and the gluing tacky area is not less than 50%, pastes evenly extruding on the metope.

Embodiment 3:

External wall inorganic heat preservation plate adhesive mortar of the present invention is to add water by following materials based on weight to mix:

38 parts of cement, 63 parts of silica sands, 6 parts in flyash; 1 part of polymer dispersion powder, 0.2 part of Vltra tears, rubber powder are optimized plain 0.2 part; Mortar is optimized 0.4 part of agent, and the raw material of said parts by weight is added entry, stirs and processes mortar; The weight of said raw material: the weight of water=1: 0.21, placed slaking 6 minutes.

The performance of the adhesive mortar that above-mentioned prescription makes and will ask for an interview to table 3.

The performance index of table 3 adhesive mortar (and requirement)

The constructional method of said external wall inorganic heat preservation plate adhesive mortar is characterized in that this method is carried out according to following steps:

A) remove the metope substrate surface: remove the foreign matter that substrate surface dust, dirt etc. influence cohesive strength;

B) use the cement mortar screeding metope: protruding, empty swollen and porous spot should be rejected also levelling, and screed-coat should be firm with the body of wall bonding, and delamination, hollowing, crack must not be arranged, and surface layer must not have phenomenons such as efflorescence, peeling, quick-fried ash;

C) preparation adhesive mortar;

D) heat preservation plate material is pasted metope: the adhesive mortar for preparing among the step c is pasted heat preservation plate material with some frame or the sticking method of bar, and the gluing tacky area is not less than 50%, pastes evenly extruding on the metope.

Claims (9)

1. external wall inorganic heat preservation plate adhesive mortar is characterized in that, this mortar is to add water by following materials based on weight to mix:

Cement: 35-40 part, silica sand: 55-63 part, flyash: 3-6 part,

Polymer dispersion powder: 0.4-1.0 part, Vltra tears: 0.1-0.2 part,

Rubber powder is optimized plain: 0.2-0.4 part, and mortar is optimized agent: 0.2-0.4 part,

The raw material of above-mentioned parts by weight is added entry, stir and process mortar, the weight of said raw material: the weight of water=1: 0.20-0.23, placed slaking 4-6 minute.

2. external wall inorganic heat preservation plate adhesive mortar according to claim 1 is characterized in that said cement is general silicate cement.

3. external wall inorganic heat preservation plate adhesive mortar according to claim 1 is characterized in that, said silica sand is 40-120 purpose grating silica sand.

4. external wall inorganic heat preservation plate adhesive mortar according to claim 1 is characterized in that said flyash is more than secondary, between the 180-220 order.

5. external wall inorganic heat preservation plate adhesive mortar according to claim 1 is characterized in that, said polymer dispersion powder adopts Germany's watt gram latex powder, and its model is re5010 or re4023.

6. external wall inorganic heat preservation plate adhesive mortar according to claim 1 is characterized in that, said Vltra tears, and the viscosity unit of its HPMC is 40,000-100,000.

7. external wall inorganic heat preservation plate adhesive mortar according to claim 1 is characterized in that, it is the function building auxiliary agent that said rubber powder is optimized element.

8. external wall inorganic heat preservation plate adhesive mortar according to claim 1 is characterized in that, it is the function building auxiliary agent that said mortar is optimized agent.

9. constructional method of external wall inorganic heat preservation plate adhesive mortar according to claim 1 is characterized in that this method is carried out according to following steps:

A) remove the metope substrate surface: remove the foreign matter that substrate surface dust, dirt etc. influence cohesive strength;

B) use the cement mortar screeding metope: protruding, empty swollen and porous spot should be rejected also levelling, and screed-coat should be firm with the body of wall bonding, and delamination, hollowing, crack must not be arranged, and surface layer must not have phenomenons such as efflorescence, peeling, quick-fried ash;

C) preparation adhesive mortar;

D) heat preservation plate material is pasted metope: the adhesive mortar for preparing among the step c is pasted heat preservation plate material with completely sticking method, and the gluing tacky area is not less than 50%, pastes evenly extruding on the metope.