CN110627420A - Thermal insulation mortar for building wall and preparation method thereof - Google Patents
Thermal insulation mortar for building wall and preparation method thereof Download PDFInfo
- Publication number
- CN110627420A CN110627420A CN201910983451.4A CN201910983451A CN110627420A CN 110627420 A CN110627420 A CN 110627420A CN 201910983451 A CN201910983451 A CN 201910983451A CN 110627420 A CN110627420 A CN 110627420A
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- CN
- China
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- parts
- heat
- lightweight aggregate
- latex powder
- redispersible latex
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention discloses heat-insulating mortar for a building wall, which comprises the following components in percentage by mass: 20-30 parts of cement, 10-15 parts of fly ash, 30-40 parts of fine sand, 2-3 parts of redispersible latex powder, 0.5-1.2 parts of water reducing agent, 3-5 parts of heat-insulating lightweight aggregate, 1-2 parts of short fiber, 2-3 parts of long fiber and 3-5 parts of mortar reinforcing agent. The invention can strictly control the particle precision of each material, can ensure that the short fibers, the long fibers and the heat-preservation lightweight aggregate are fully contacted with the redispersible latex powder, and can ensure that the short fibers, the long fibers and the heat-preservation lightweight aggregate are combined with cement, fine sand and fly ash more tightly after mixing and molding, thereby greatly increasing the heat-preservation performance and the anti-shearing strength of the mortar.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to thermal insulation mortar for a building wall and a preparation method thereof.
Background
Buildings are generally constructed with insulating layers. The traditional heat insulation materials are expanded polystyrene boards, extruded polystyrene boards, foamed polyurethane and the like, although the heat conductivity coefficient is small and the heat insulation performance is excellent, the traditional heat insulation materials are used as organic heat insulation materials and have poor fireproof performance, and in recent years, China has frequently caused serious fire disasters caused by ignition of the organic heat insulation materials, so that the inorganic heat insulation materials are widely popularized in many areas.
The prior building heat-insulating mortar only mixes and stirs various mortar raw materials in the using process and cannot exert the optimal performance of the heat-insulating mortar.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides thermal insulation mortar for a building wall and a preparation method thereof.
The invention provides heat-insulating mortar for a building wall, which comprises the following components in percentage by mass: 20-30 parts of cement, 10-15 parts of fly ash, 30-40 parts of fine sand, 2-3 parts of redispersible latex powder, 0.5-1.2 parts of water reducing agent, 3-5 parts of heat preservation lightweight aggregate, 1-2 parts of short fiber, 2-3 parts of long fiber and 3-5 parts of mortar reinforcing agent.
The invention provides heat-insulating mortar for a building wall, which further comprises the following components in percentage by mass: 30-50 parts of cement, 10-15 parts of fly ash, 40-50 parts of fine sand, 3-5 parts of redispersible latex powder, 0.8-1.5 parts of water reducing agent, 5-7 parts of heat preservation lightweight aggregate, 3-5 parts of short fiber, 3-4 parts of long fiber and 4-6 parts of mortar reinforcing agent.
A preparation method of thermal insulation mortar for building walls comprises the following steps:
s1: pretreating materials, namely taking sufficient fly ash, fine sand, redispersible latex powder and heat-preservation lightweight aggregate, respectively sieving the fly ash, the fine sand and the redispersible latex powder with a sieve of 70-120 meshes, sieving the heat-preservation lightweight aggregate with a sieve of 30-40 meshes, removing large-particle materials by sieving, and taking the sieved fly ash, the fine sand, the redispersible latex powder and the heat-preservation lightweight aggregate according to a preset proportion;
s2: pre-mixing, namely taking short fibers, long fibers and heat-preservation lightweight aggregate according to a proportion, immersing the short fibers, the long fibers and the heat-preservation lightweight aggregate into water, taking out after soaking, obtaining the mixture according to the proportion, and mixing the redispersible latex powder with the wet short fibers, the wet long fibers and the heat-preservation lightweight aggregate for 10-15 minutes to ensure that the outer walls of the short fibers, the wet long fibers and the heat-preservation lightweight aggregate are fully stained with the redispersible latex powder;
s3: mixing, namely adding the cement, the fine sand, the fly ash, the mortar reinforcing agent and the water reducing agent into the premixed short fiber, the long fiber, the heat-preservation lightweight aggregate and the redispersible latex powder in sequence according to the proportion, mixing and stirring for 30-60 minutes, and stopping stirring after all the materials are uniformly mixed;
s4: adding water for forming, adding a proper amount of water into the mixed material according to the wall painting requirement, stirring and forming to be applied to the wall.
Preferably, the mass ratio of the water to the mixed material is 1:2 or 1: 3.
The invention has the beneficial effects that:
the particle precision of each material can be strictly controlled by screening the fly ash, the fine sand, the redispersible latex powder and the heat-preservation lightweight aggregate, the use is convenient, the short fibers, the long fibers and the heat-preservation lightweight aggregate are soaked and then premixed with the redispersible latex powder, so that the short fibers, the long fibers and the heat-preservation lightweight aggregate can be fully contacted with the redispersible latex powder, the short fibers, the long fibers and the heat-preservation lightweight aggregate are combined with the cement, the fine sand and the fly ash more tightly after mixing and molding, and the heat preservation performance and the shear strength of the mortar are greatly improved.
Drawings
FIG. 1 is a schematic view of a preparation process of the thermal insulation mortar for building walls according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Embodiment 1, a thermal insulation mortar for building walls and a preparation method thereof, wherein the thermal insulation mortar comprises the following components in percentage by mass: 20-30 parts of cement, 10-15 parts of fly ash, 30-40 parts of fine sand, 2-3 parts of redispersible latex powder, 0.5-1.2 parts of water reducing agent, 3-5 parts of heat preservation lightweight aggregate, 1-2 parts of short fiber, 2-3 parts of long fiber and 3-5 parts of mortar reinforcing agent, and the preparation method comprises the following steps:
s1: pretreating materials, namely taking sufficient fly ash, fine sand, redispersible latex powder and heat-preservation lightweight aggregate, respectively sieving the fly ash, the fine sand and the redispersible latex powder with a sieve of 70-120 meshes, sieving the heat-preservation lightweight aggregate with a sieve of 30-40 meshes, removing large-particle materials by sieving, and taking the sieved fly ash, the fine sand, the redispersible latex powder and the heat-preservation lightweight aggregate according to a preset proportion;
s2: pre-mixing, namely taking short fibers, long fibers and heat-preservation lightweight aggregate according to the proportion of 20-30 parts of cement, 10-15 parts of fly ash, 30-40 parts of fine sand, 2-3 parts of re-dispersible latex powder, 0.5-1.2 parts of water reducing agent, 3-5 parts of heat-preservation lightweight aggregate, 1-2 parts of short fibers, 2-3 parts of long fibers and 3-5 parts of mortar reinforcing agent, soaking the short fibers, the long fibers and the heat-preservation lightweight aggregate in water, fishing out after soaking, obtaining according to the proportion, mixing the re-dispersible latex powder with the wet short fibers, the long fibers and the heat-preservation lightweight aggregate, and keeping for 10-15 minutes to enable the outer walls of the short fibers, the long fibers and the heat-preservation lightweight aggregate to be fully adhered with the re-dispersible latex powder;
s3: mixing, namely adding the cement, the fine sand, the fly ash, the mortar reinforcing agent and the water reducing agent into the premixed short fiber, the long fiber, the heat-preservation lightweight aggregate and the redispersible latex powder in sequence according to the proportion, mixing and stirring for 30-60 minutes, and stopping stirring after all the materials are uniformly mixed;
s4: adding water for forming, adding water into the mixed material according to the wall painting requirement, wherein the mass ratio of the water to the mixed material is 1:2, and stirring and forming to be applied to the wall.
Embodiment 2, a thermal insulation mortar for a building wall, further comprising the following components in parts by mass: 30-50 parts of cement, 10-15 parts of fly ash, 40-50 parts of fine sand, 3-5 parts of redispersible latex powder, 0.8-1.5 parts of water reducing agent, 5-7 parts of heat preservation lightweight aggregate, 3-5 parts of short fiber, 3-4 parts of long fiber and 4-6 parts of mortar reinforcing agent.
S1: pretreating materials, namely taking sufficient fly ash, fine sand, redispersible latex powder and heat-preservation lightweight aggregate, respectively sieving the fly ash, the fine sand and the redispersible latex powder with a sieve of 70-120 meshes, sieving the heat-preservation lightweight aggregate with a sieve of 30-40 meshes, removing large-particle materials by sieving, and taking the sieved fly ash, the fine sand, the redispersible latex powder and the heat-preservation lightweight aggregate according to a preset proportion;
s2: the heat-insulating mortar is premixed, and further comprises the following components in percentage by mass: 30-50 parts of cement, 10-15 parts of fly ash, 40-50 parts of fine sand, 3-5 parts of redispersible latex powder, 0.8-1.5 parts of water reducing agent, 5-7 parts of heat preservation lightweight aggregate, 3-5 parts of short fiber, 3-4 parts of long fiber and 4-6 parts of mortar reinforcing agent, taking the short fiber, the long fiber and the heat preservation lightweight aggregate, immersing the short fiber, the long fiber and the heat preservation lightweight aggregate in water, soaking and then taking out, obtaining the redispersible latex powder according to the proportion, and mixing the redispersible latex powder with the wet short fiber, the long fiber and the heat preservation lightweight aggregate for 10-15 minutes to enable the outer walls of the short fiber, the long fiber and the heat preservation lightweight aggregate to be fully stained with the redispersible latex powder;
s3: mixing, namely adding the cement, the fine sand, the fly ash, the mortar reinforcing agent and the water reducing agent into the premixed short fiber, the long fiber, the heat-preservation lightweight aggregate and the redispersible latex powder in sequence according to the proportion, mixing and stirring for 30-60 minutes, and stopping stirring after all the materials are uniformly mixed;
s4: adding water for forming, adding water into the mixed material according to the wall painting requirement, wherein the mass ratio of the water to the mixed material is 1:3, stirring and forming, and then applying the mixed material to the wall.
The preparation methods of the embodiments are tested by taking the same materials, the mortar prepared by the materials which are the same as the embodiments by using the common preparation method is tested, and the results of the shear strength and the thermal conductivity coefficient of the embodiments are compared with the results of the shear strength and the thermal conductivity coefficient of the common mixed preparation method by the test as shown in the table below:
| mode of preparation | Shear strength (Mpa) | Coefficient of thermal conductivity (W/m.K) |
| EXAMPLE 1 preparation method | 0.59 | 0.083 |
| General preparation of the same materials as in example 1 | 0.53 | 0.085 |
| EXAMPLE 2 preparation method | 0.61 | 0.079 |
| General preparation of the same materials as in example 2 | 0.57 | 0.078 |
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. The heat-insulating mortar for the building wall is characterized by comprising the following components in percentage by mass: 20-30 parts of cement, 10-15 parts of fly ash, 30-40 parts of fine sand, 2-3 parts of redispersible latex powder, 0.5-1.2 parts of water reducing agent, 3-5 parts of heat preservation lightweight aggregate, 1-2 parts of short fiber, 2-3 parts of long fiber and 3-5 parts of mortar reinforcing agent.
2. The thermal insulation mortar for building walls according to claim 1, further comprising the following components in percentage by mass: 30-50 parts of cement, 10-15 parts of fly ash, 40-50 parts of fine sand, 3-5 parts of redispersible latex powder, 0.8-1.5 parts of water reducing agent, 5-7 parts of heat preservation lightweight aggregate, 3-5 parts of short fiber, 3-4 parts of long fiber and 4-6 parts of mortar reinforcing agent.
3. A preparation method of thermal insulation mortar for building walls is characterized by comprising the following steps:
s1: pretreating materials, namely taking sufficient fly ash, fine sand, redispersible latex powder and heat-preservation lightweight aggregate, respectively sieving the fly ash, the fine sand and the redispersible latex powder with a sieve of 70-120 meshes, sieving the heat-preservation lightweight aggregate with a sieve of 30-40 meshes, removing large-particle materials by sieving, and taking the sieved fly ash, the fine sand, the redispersible latex powder and the heat-preservation lightweight aggregate according to a preset proportion;
s2: pre-mixing, namely taking short fibers, long fibers and heat-preservation lightweight aggregate according to a proportion, immersing the short fibers, the long fibers and the heat-preservation lightweight aggregate into water, taking out after soaking, obtaining the mixture according to the proportion, and mixing the redispersible latex powder with the wet short fibers, the wet long fibers and the heat-preservation lightweight aggregate for 10-15 minutes to ensure that the outer walls of the short fibers, the wet long fibers and the heat-preservation lightweight aggregate are fully stained with the redispersible latex powder;
s3: mixing, namely adding the cement, the fine sand, the fly ash, the mortar reinforcing agent and the water reducing agent into the premixed short fiber, the long fiber, the heat-preservation lightweight aggregate and the redispersible latex powder in sequence according to the proportion, mixing and stirring for 30-60 minutes, and stopping stirring after all the materials are uniformly mixed;
s4: adding water for forming, adding a proper amount of water into the mixed material according to the wall painting requirement, stirring and forming to be applied to the wall.
4. The preparation method of the thermal mortar for the building wall according to claim 3, wherein the mass ratio of the water to the mixed material is 1:2 or 1: 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910983451.4A CN110627420A (en) | 2019-10-16 | 2019-10-16 | Thermal insulation mortar for building wall and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910983451.4A CN110627420A (en) | 2019-10-16 | 2019-10-16 | Thermal insulation mortar for building wall and preparation method thereof |
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| CN110627420A true CN110627420A (en) | 2019-12-31 |
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| CN201910983451.4A Pending CN110627420A (en) | 2019-10-16 | 2019-10-16 | Thermal insulation mortar for building wall and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305972A (en) * | 2001-02-23 | 2001-08-01 | 重庆大学 | External insulating mortar and its preparing process |
| CN101239799A (en) * | 2008-03-14 | 2008-08-13 | 上海中绿建材有限公司 | Cement lightweight mortar |
| CN101255717A (en) * | 2007-12-11 | 2008-09-03 | 刘健 | Construction technique for building block and wall board |
| CN106396529A (en) * | 2015-08-03 | 2017-02-15 | 厦门嘉达环保建造工程有限公司 | Damping sound-insulating spraying mortar |
| CN108484212A (en) * | 2018-06-11 | 2018-09-04 | 江西省建筑材料工业科学研究设计院 | A kind of hollow tiny pearl thermal insulation mortar and preparation method thereof |
| CN109485321A (en) * | 2018-12-07 | 2019-03-19 | 徐州市万达石英有限公司 | A kind of quartz sand miberal powder thermal insulation material |
-
2019
- 2019-10-16 CN CN201910983451.4A patent/CN110627420A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305972A (en) * | 2001-02-23 | 2001-08-01 | 重庆大学 | External insulating mortar and its preparing process |
| CN101255717A (en) * | 2007-12-11 | 2008-09-03 | 刘健 | Construction technique for building block and wall board |
| CN101239799A (en) * | 2008-03-14 | 2008-08-13 | 上海中绿建材有限公司 | Cement lightweight mortar |
| CN106396529A (en) * | 2015-08-03 | 2017-02-15 | 厦门嘉达环保建造工程有限公司 | Damping sound-insulating spraying mortar |
| CN108484212A (en) * | 2018-06-11 | 2018-09-04 | 江西省建筑材料工业科学研究设计院 | A kind of hollow tiny pearl thermal insulation mortar and preparation method thereof |
| CN109485321A (en) * | 2018-12-07 | 2019-03-19 | 徐州市万达石英有限公司 | A kind of quartz sand miberal powder thermal insulation material |
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Application publication date: 20191231 |