CN112408900A - Inorganic lightweight aggregate fireproof thermal insulation mortar for building, wall and construction method - Google Patents
Inorganic lightweight aggregate fireproof thermal insulation mortar for building, wall and construction method Download PDFInfo
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- CN112408900A CN112408900A CN202011209824.1A CN202011209824A CN112408900A CN 112408900 A CN112408900 A CN 112408900A CN 202011209824 A CN202011209824 A CN 202011209824A CN 112408900 A CN112408900 A CN 112408900A
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- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 207
- 238000009413 insulation Methods 0.000 title claims abstract description 55
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 239000004088 foaming agent Substances 0.000 claims abstract description 26
- 239000011398 Portland cement Substances 0.000 claims abstract description 25
- 239000004816 latex Substances 0.000 claims abstract description 22
- 229920000126 latex Polymers 0.000 claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 22
- 239000010410 layer Substances 0.000 claims description 179
- 238000004321 preservation Methods 0.000 claims description 81
- 239000000203 mixture Substances 0.000 claims description 49
- 239000004033 plastic Substances 0.000 claims description 35
- 239000006260 foam Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- 239000011247 coating layer Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims 1
- 239000003570 air Substances 0.000 description 11
- 239000004568 cement Substances 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 239000004604 Blowing Agent Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000011325 microbead Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- C04B28/02—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 containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
- E04F13/04—Bases for plaster
- E04F13/047—Plaster carrying meshes
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
- C04B2111/285—Intumescent materials
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Electromagnetism (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Acoustics & Sound (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Building Environments (AREA)
Abstract
The invention discloses inorganic lightweight aggregate fireproof thermal insulation mortar for buildings, a wall and a construction method, which improve fireproof thermal insulation performance. The inorganic lightweight aggregate fireproof thermal insulation mortar for the building comprises the following components in parts by weight: ordinary portland cement: 40-45 parts; inorganic lightweight aggregate: 55-60 parts; foaming agent: 5-8 parts; redispersible latex powder: 1-2 parts.
Description
Technical Field
The invention belongs to the field of building construction, and particularly relates to inorganic lightweight aggregate fireproof thermal insulation mortar for buildings, a wall and a construction method.
Background
The existing building wall is mostly formed by pouring bricks and cement concrete. The cement concrete can stabilize the wall. The cement concrete is usually made by mixing ordinary portland cement and sand and then stirring. The heat insulating performance of cement concrete is poor. In the modern society with resource shortage, if the building wall body has the heat preservation performance, the energy is inevitably greatly saved. For example, in winter, the heat preservation performance of the building wall body is utilized, so that the loss of indoor heat to the outside can be reduced, the supply of indoor heat is reduced, and resources are saved. Therefore, there is a great need in the art for a building wall with good thermal insulation properties.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides inorganic lightweight aggregate fireproof thermal insulation mortar for buildings, a wall and a construction method, and improves fireproof thermal insulation performance.
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides inorganic lightweight aggregate fireproof thermal insulation mortar for buildings, which is characterized in that the fireproof thermal insulation mortar comprises the following components in parts by weight:
ordinary portland cement: 40-45 parts;
inorganic lightweight aggregate: 55-60 parts;
foaming agent: 5-8 parts;
redispersible latex powder: 1-2 parts.
Preferably, the inorganic lightweight aggregate is vitrified micro-beads.
In a second aspect, an embodiment of the present invention provides a building exterior wall, including a base and an inorganic lightweight aggregate fireproof heat-insulating mortar layer outside the base;
the inorganic lightweight aggregate fireproof heat-preservation mortar layer comprises the following components in parts by weight:
ordinary portland cement: 40-45 parts;
inorganic lightweight aggregate: 55-60 parts;
foaming agent: 5-8 parts;
redispersible latex powder: 1-2 parts.
Preferably, the inorganic lightweight aggregate fireproof heat-insulating mortar layer comprises a first fireproof heat-insulating mortar sublayer, a second fireproof heat-insulating mortar sublayer and a third fireproof heat-insulating mortar sublayer, and a first foamed plastic net layer with meshes is arranged between the first fireproof heat-insulating mortar sublayer and the second fireproof heat-insulating mortar sublayer; a second foam plastic net layer with meshes is arranged between the second fireproof heat-insulating mortar sub layer and the third fireproof heat-insulating mortar sub layer; and a fireproof coating layer is arranged on the outer surface of the third fire-proof heat-preservation mortar sub-layer.
In a third aspect, an embodiment of the present invention provides a construction method for an exterior wall of a building, including:
cleaning the surface of the matrix of the outer wall to remove dust; spraying water on the surface of the substrate to wet the surface;
preparing fireproof heat-insulation mortar, wherein the fireproof heat-insulation mortar comprises the following components in parts by weight: ordinary portland cement: 40-45 parts; inorganic lightweight aggregate: 55-60 parts; foaming agent: 5-8 parts; redispersible latex powder: 1-2 parts; mixing the fireproof heat-preservation mortar and water according to the proportion of 10: 5-8, and uniformly stirring to form a mixture;
coating the mixture on the substrate to form a first fireproof heat-preservation mortar sub-layer;
before the first fireproof heat-insulating mortar sublayer is hardened, the first foam plastic net layer is embedded into the first fireproof heat-insulating mortar sublayer; the first foam plastic net layer partially exposes out of the first fireproof heat-preservation mortar sub-layer;
after the first fireproof heat-insulating mortar sub-layer is hardened, smearing a mixture to the outer side of the first fireproof heat-insulating mortar sub-layer to form a second fireproof heat-insulating mortar sub-layer; the second fireproof heat-insulation mortar sub-layer covers the first foam plastic net layer exposed out of the first fireproof heat-insulation mortar sub-layer; before the second fireproof heat-insulating mortar sublayer is hardened, embedding the second foam plastic net layer into the second fireproof heat-insulating mortar sublayer, wherein the second foam plastic net layer is partially exposed out of the second fireproof heat-insulating mortar sublayer;
after the second fireproof heat-preservation mortar sub-layer is hardened, coating a mixture on the outer side of the second fireproof heat-preservation mortar sub-layer to form a third fireproof heat-preservation mortar sub-layer; the third fireproof heat-preservation mortar sub-layer covers the second foam plastic net layer exposing the second fireproof heat-preservation mortar sub-layer;
and spraying a fireproof coating layer on the surface of the third fire-proof heat-preservation mortar sub-layer after the third fire-proof heat-preservation mortar sub-layer is hardened.
Preferably, in the first sub-layer of the fireproof thermal insulation mortar, the fireproof thermal insulation mortar comprises the following components in parts by weight: ordinary portland cement: 40-41 parts; inorganic lightweight aggregate: 59-60 parts; foaming agent: 5-8 parts; redispersible latex powder: 1-2 parts; the fireproof heat-preservation mortar and water are mixed according to the proportion of 10: 5.
Preferably, in the second sub-layer of fireproof thermal insulation mortar, the fireproof thermal insulation mortar comprises the following components in parts by weight: ordinary portland cement: 42-43 parts; inorganic lightweight aggregate: 57-58 parts; foaming agent: 5-8 parts; redispersible latex powder: 1-2 parts; the fireproof heat-preservation mortar and water are mixed according to the proportion of 10: 6-7.
Preferably, in the third fire-proof thermal insulation mortar sublayer, the fire-proof thermal insulation mortar comprises the following components in parts by weight: ordinary portland cement: 44-45 parts; inorganic lightweight aggregate: 55-56 parts; foaming agent: 5-8 parts; redispersible latex powder: 1-2 parts; the fireproof heat-preservation mortar and water are mixed according to the proportion of 10: 8.
Preferably, the coating process of the first fireproof thermal insulation mortar sub-layer is as follows: the mixture of each layer is coated in a layered mode, the thickness of the mixture of each layer is smaller than 2 mm, after one layer is coated, the mixture of the next layer is coated after the mixture of the next layer is hardened until the thickness of the first fireproof thermal insulation mortar sublayer reaches the set requirement; the smearing process of the second fireproof heat-preservation mortar sub-layer and the smearing process of the third fireproof heat-preservation mortar sub-layer are respectively the same as the smearing process of the first fireproof heat-preservation mortar sub-layer.
Preferably, the outer surface of the base body is wave-shaped; in the smearing process of the first fireproof heat-preservation mortar sublayer, each layer of mixture is wavy; in the smearing process of the second fireproof thermal insulation mortar sublayer, each layer of mixture is wavy.
The inorganic lightweight aggregate fireproof thermal insulation mortar for buildings, the wall and the construction method in the embodiment improve the fireproof thermal insulation performance. In the embodiment, the inorganic lightweight aggregate is used for enhancing the fireproof and heat-insulating properties of the mortar. After the ordinary portland cement, the inorganic lightweight aggregate, the foaming agent and the redispersible latex powder are mixed, the foaming agent reacts to generate bubbles in the mortar, and the heat insulation performance is further improved due to the generation of the bubbles. Thus, after the mortar is solidified, air bubbles exist in the mortar, and the heat insulation performance is improved.
Detailed Description
The technical solution of the present invention will be explained in detail below.
The embodiment of the invention provides inorganic lightweight aggregate fireproof thermal insulation mortar for buildings, which comprises the following components in parts by weight:
ordinary portland cement: 40-45 parts;
inorganic lightweight aggregate: 55-60 parts;
foaming agent: 5-8 parts;
redispersible latex powder: 1-2 parts.
In the above embodiment, the inorganic lightweight aggregate is used to enhance the fire-proof and thermal insulation properties of the mortar. Preferably, the inorganic lightweight aggregate is vitrified micro bubbles. After the ordinary portland cement, the inorganic lightweight aggregate, the foaming agent and the redispersible latex powder are mixed, the foaming agent reacts to generate bubbles in the mortar, and the heat insulation performance is further improved due to the generation of the bubbles. Thus, after the mortar is solidified, air bubbles exist in the mortar, and the heat insulation performance is improved. The redispersible latex powder has adhesive property, so that the common Portland cement and the inorganic lightweight aggregate can be bonded into a whole after being mixed. No chemical binder is added in the process, so that pollution is reduced. Meanwhile, in the embodiment, the weight part of the inorganic lightweight aggregate is more than that of the ordinary portland cement, so that the fireproof and heat-insulating properties of the mortar are improved.
The embodiment of the invention also provides a building outer wall which comprises a base body and an inorganic lightweight aggregate fireproof heat-preservation mortar layer on the outer side of the base body. The inorganic lightweight aggregate fireproof heat-preservation mortar layer adopts the mortar layer of the embodiment, and specifically, the inorganic lightweight aggregate fireproof heat-preservation mortar layer comprises the following components in parts by weight:
ordinary portland cement: 40-45 parts;
inorganic lightweight aggregate: 55-60 parts;
foaming agent: 5-8 parts;
redispersible latex powder: 1-2 parts.
In the embodiment, the fireproof and heat-insulating mortar layer made of the inorganic lightweight aggregate is adopted, so that the fireproof and heat-insulating performance of the whole building outer wall is enhanced.
Preferably, the inorganic lightweight aggregate fireproof heat-insulating mortar layer comprises a first fireproof heat-insulating mortar sublayer, a second fireproof heat-insulating mortar sublayer and a third fireproof heat-insulating mortar sublayer, and a first foamed plastic net layer with meshes is arranged between the first fireproof heat-insulating mortar sublayer and the second fireproof heat-insulating mortar sublayer; a second foam plastic net layer with meshes is arranged between the second fireproof heat-insulating mortar sub layer and the third fireproof heat-insulating mortar sub layer; and a fireproof coating layer is arranged on the outer surface of the third fire-proof heat-preservation mortar sub-layer. In the preferred embodiment, the inorganic lightweight aggregate fireproof heat-insulating mortar layer comprises three fireproof heat-insulating mortar sublayers. The first foamed plastic net layer has mortar in its meshes. The first foam web layer has some flexibility. When the external environment temperature changes, the deformation of the first foam plastic net layer is utilized to adapt to the deformation of the first fireproof heat-insulating mortar sub-layer and the second fireproof heat-insulating mortar sub-layer. Meanwhile, the first foam plastic net layer contains a large number of air holes, so that the heat insulation performance can be improved. Also, the second foam plastic net layer has mortar in the net holes. The second foam web layer has some flexibility. When the external environment temperature changes, the deformation of the second foam plastic net layer is utilized to adapt to the deformation of the second fireproof heat-preservation mortar sub-layer and the third fireproof heat-preservation mortar sub-layer. Meanwhile, the second foam plastic net layer contains a large number of air holes, so that the heat insulation performance can be improved.
The embodiment of the invention also provides a construction method of the building outer wall, which comprises the following steps:
step 10), cleaning the surface of the matrix of the outer wall, and removing dust; spraying water on the surface of the substrate to wet the surface. The cleaning treatment aims to avoid the influence of sundry dust on the subsequent coating of the fireproof heat-insulating mortar, so that the adhesion between the fireproof heat-insulating mortar and the matrix is more reliable.
Step 20) preparing fireproof heat-insulating mortar, wherein the fireproof heat-insulating mortar comprises the following components in parts by weight: ordinary portland cement: 40-45 parts; inorganic lightweight aggregate: 55-60 parts; foaming agent: 5-8 parts; redispersible latex powder: 1-2 parts; and mixing the fireproof heat-preservation mortar and water according to the proportion of 10: 5-8, and uniformly stirring to form a mixture.
In the step, the weight portion of the inorganic lightweight aggregate is larger than that of the ordinary Portland cement. This is beneficial to enhancing the fire-proof and heat-insulating performance of the mortar.
And step 30) coating the mixture on the substrate to form a first fireproof heat-preservation mortar sub-layer.
Step 40) embedding the first foam plastic net layer into the first fireproof heat-insulating mortar sublayer before the first fireproof heat-insulating mortar sublayer is hardened; the first foam plastic net layer partially exposes out of the first fireproof heat-preservation mortar sub-layer;
step 50) after the first fireproof heat-insulating mortar sublayer is hardened, smearing the mixture on the outer side of the first fireproof heat-insulating mortar sublayer to form a second fireproof heat-insulating mortar sublayer; the second fireproof heat-insulation mortar sub-layer covers the first foam plastic net layer exposed out of the first fireproof heat-insulation mortar sub-layer; and before the second fireproof heat-insulating mortar sublayer is hardened, embedding the second foam plastic net layer into the second fireproof heat-insulating mortar sublayer, wherein the second foam plastic net layer is partially exposed out of the second fireproof heat-insulating mortar sublayer.
Step 60) after the second fireproof heat-preservation mortar sub-layer is hardened, smearing the mixture to the outer side of the second fireproof heat-preservation mortar sub-layer to form a third fireproof heat-preservation mortar sub-layer; and the third fireproof heat-preservation mortar sub-layer covers the second foam plastic net layer exposing the second fireproof heat-preservation mortar sub-layer.
And 70) spraying a fireproof coating layer on the surface of the third fire-proof heat-preservation mortar sub-layer after the third fire-proof heat-preservation mortar sub-layer is hardened.
In the method, the first fireproof heat-insulating mortar sublayer is directly contacted with the substrate. The first foam plastic net layer is partially embedded into the first fireproof heat-insulating mortar sub-layer, and the first fireproof heat-insulating mortar sub-layer is partially exposed. In the step 50), the second fireproof heat-preservation mortar sub-layer covers the first foamed plastic net layer exposing the first fireproof heat-preservation mortar sub-layer. And a first foamed plastic net layer is arranged between the second fireproof heat-insulating mortar sub-layer and the first fireproof heat-insulating mortar sub-layer. Through the first foam plastic net layer, deformation of the first fireproof heat-preservation mortar sub-layer and the second fireproof heat-preservation mortar sub-layer caused by temperature change is adjusted, and cracking of the heat-preservation mortar is avoided. Similarly, the deformation of the second fireproof heat-preservation mortar sub-layer and the third fireproof heat-preservation mortar sub-layer caused by temperature change is adjusted through the second foam plastic net layer, so that the heat-preservation mortar is prevented from cracking.
Preferably, in the first sub-layer of the fireproof thermal insulation mortar, the fireproof thermal insulation mortar comprises the following components in parts by weight: ordinary portland cement: 40-41 parts; inorganic lightweight aggregate: 59-60 parts; foaming agent: 5-8 parts; redispersible latex powder: 1-2 parts; the fireproof heat-preservation mortar and water are mixed according to the proportion of 10: 5. In the second fireproof heat-insulating mortar sublayer, the fireproof heat-insulating mortar comprises the following components in parts by weight: ordinary portland cement: 42-43 parts; inorganic lightweight aggregate: 57-58 parts; foaming agent: 5-8 parts; redispersible latex powder: 1-2 parts; the fireproof heat-preservation mortar and water are mixed according to the proportion of 10: 6-7. In the third fire-proof heat-insulating mortar sublayer, the fire-proof heat-insulating mortar comprises the following components in parts by weight: ordinary portland cement: 44-45 parts; inorganic lightweight aggregate: 55-56 parts; foaming agent: 5-8 parts; redispersible latex powder: 1-2 parts; the fireproof heat-preservation mortar and water are mixed according to the proportion of 10: 8.
The first fireproof heat-preservation mortar sub-layer, the second fireproof heat-preservation mortar sub-layer and the third fireproof heat-preservation mortar sub-layer are sequentially coated on the surface of the matrix from inside to outside. Wherein, the first fire prevention heat preservation mortar sublayer is located the innermost side, and the third fire prevention heat preservation mortar sublayer is located the outermost side. And the content of the inorganic lightweight aggregate is gradually increased from the third fireproof thermal insulation mortar sub-layer to the first fireproof thermal insulation mortar sub-layer. The heat-insulating and fireproof performances of the fireproof heat-insulating mortar sub-layer are increased in a gradient manner. Compared with the same content of the inorganic lightweight aggregate in each sublayer, the optimal selection example can obviously improve the heat preservation performance. The heat insulation performance of each fireproof heat insulation mortar sublayer is gradually increased from the outer side to the inner side of the wall body.
Preferably, the coating process of the first fireproof thermal insulation mortar sub-layer is as follows: the mixture of each layer is coated in a layered mode, the thickness of the mixture of each layer is smaller than 2 mm, after one layer is coated, the mixture of the next layer is coated after the mixture of the next layer is hardened until the thickness of the first fireproof thermal insulation mortar sublayer reaches the set requirement; the smearing process of the second fireproof heat-preservation mortar sub-layer and the smearing process of the third fireproof heat-preservation mortar sub-layer are respectively the same as the smearing process of the first fireproof heat-preservation mortar sub-layer.
In the preferred embodiment, the coating is applied layer by layer. The mixture contains a foaming agent. The foaming agent continues to generate bubbles during application of the mixture. Since the thickness of each layer of the mixture is less than 2 mm, the external air can be sufficiently introduced into each layer of the mixture during the process of applying each layer of the mixture. When the next layer of mixture is coated, air is blocked in the air holes of the upper layer. This can significantly increase the insulating properties. The process of applying the next layer of mixture is the same as the process of applying the previous layer of mixture. Each application of a layer of the mixture allows ambient air to enter the mixture and fill the cavity of the hole. The mixture is coated in layers, the thickness of each layer is less than 2 mm, and the heat insulation performance is greatly improved. After the mixture of the previous layer is hardened, the mixture of the next layer is coated, so that air enters the gaps of the mixture of the previous layer and can be blocked.
Preferably, the thickness of the inorganic lightweight aggregate fireproof heat-preservation mortar layer is 1-2 cm. The inorganic lightweight aggregate fireproof heat-preservation mortar layer with a certain thickness can play a good role in fireproof heat preservation.
Preferably, the outer surface of the base body is wave-shaped; in the smearing process of the first fireproof heat-preservation mortar sublayer, each layer of mixture is wavy; in the smearing process of the second fireproof thermal insulation mortar sublayer, each layer of mixture is wavy. The wave shape increases the contact area between each layer of mixture and the outside air. The thickness of each layer of the mixture is small, so that the outside air can sufficiently enter the pores in the mixture, especially the pores generated by the action of the foaming agent. If no blowing agent is present, the mixture is free of porosity. The blowing agent increases the porosity in the mixture. When the pores are filled with air, the heat insulation performance of the whole mortar can be improved.
Those skilled in the art can make non-inventive technical improvements to the present application based on the above-described embodiments without departing from the spirit of the present invention. Such modifications are to be considered within the scope of the claims of the present application.
Claims (10)
1. The inorganic lightweight aggregate fireproof thermal insulation mortar for the building is characterized by comprising the following components in parts by weight:
ordinary portland cement: 40-45 parts;
inorganic lightweight aggregate: 55-60 parts;
foaming agent: 5-8 parts;
redispersible latex powder: 1-2 parts.
2. The inorganic lightweight aggregate fireproof thermal mortar for construction according to claim 1, wherein the inorganic lightweight aggregate is vitrified beads.
3. The building outer wall is characterized by comprising a base body and an inorganic lightweight aggregate fireproof heat-preservation mortar layer outside the base body;
the inorganic lightweight aggregate fireproof heat-preservation mortar layer comprises the following components in parts by weight:
ordinary portland cement: 40-45 parts;
inorganic lightweight aggregate: 55-60 parts;
foaming agent: 5-8 parts;
redispersible latex powder: 1-2 parts.
4. The building exterior wall according to claim 3, wherein the inorganic lightweight aggregate fireproof heat-insulating mortar layer comprises a first fireproof heat-insulating mortar sub-layer, a second fireproof heat-insulating mortar sub-layer and a third fireproof heat-insulating mortar sub-layer, and a first foamed plastic net layer with meshes is arranged between the first fireproof heat-insulating mortar sub-layer and the second fireproof heat-insulating mortar sub-layer; a second foam plastic net layer with meshes is arranged between the second fireproof heat-insulating mortar sub layer and the third fireproof heat-insulating mortar sub layer; and a fireproof coating layer is arranged on the outer surface of the third fire-proof heat-preservation mortar sub-layer.
5. A construction method of a building outer wall is characterized by comprising the following steps:
cleaning the surface of the matrix of the outer wall to remove dust; spraying water on the surface of the substrate to wet the surface;
preparing fireproof heat-insulation mortar, wherein the fireproof heat-insulation mortar comprises the following components in parts by weight: ordinary portland cement: 40-45 parts; inorganic lightweight aggregate: 55-60 parts; foaming agent: 5-8 parts; redispersible latex powder: 1-2 parts; mixing the fireproof heat-preservation mortar and water according to the proportion of 10: 5-8, and uniformly stirring to form a mixture;
coating the mixture on the substrate to form a first fireproof heat-preservation mortar sub-layer;
before the first fireproof heat-insulating mortar sublayer is hardened, the first foam plastic net layer is embedded into the first fireproof heat-insulating mortar sublayer; the first foam plastic net layer partially exposes out of the first fireproof heat-preservation mortar sub-layer;
after the first fireproof heat-insulating mortar sub-layer is hardened, smearing a mixture to the outer side of the first fireproof heat-insulating mortar sub-layer to form a second fireproof heat-insulating mortar sub-layer; the second fireproof heat-insulation mortar sub-layer covers the first foam plastic net layer exposed out of the first fireproof heat-insulation mortar sub-layer; before the second fireproof heat-insulating mortar sublayer is hardened, embedding the second foam plastic net layer into the second fireproof heat-insulating mortar sublayer, wherein the second foam plastic net layer is partially exposed out of the second fireproof heat-insulating mortar sublayer;
after the second fireproof heat-preservation mortar sub-layer is hardened, coating a mixture on the outer side of the second fireproof heat-preservation mortar sub-layer to form a third fireproof heat-preservation mortar sub-layer; the third fireproof heat-preservation mortar sub-layer covers the second foam plastic net layer exposing the second fireproof heat-preservation mortar sub-layer;
and spraying a fireproof coating layer on the surface of the third fire-proof heat-preservation mortar sub-layer after the third fire-proof heat-preservation mortar sub-layer is hardened.
6. The construction method of the building outer wall according to claim 5, wherein in the first fireproof heat-insulating mortar sublayer, the fireproof heat-insulating mortar comprises the following components in parts by weight: ordinary portland cement: 40-41 parts; inorganic lightweight aggregate: 59-60 parts; foaming agent: 5-8 parts; redispersible latex powder: 1-2 parts;
the fireproof heat-preservation mortar and water are mixed according to the proportion of 10: 5.
7. The construction method of the building external wall according to claim 5, wherein in the second fireproof heat-insulating mortar sublayer, the fireproof heat-insulating mortar comprises the following components in parts by weight: ordinary portland cement: 42-43 parts; inorganic lightweight aggregate: 57-58 parts; foaming agent: 5-8 parts; redispersible latex powder: 1-2 parts;
the fireproof heat-preservation mortar and water are mixed according to the proportion of 10: 6-7.
8. The construction method of the building outer wall according to claim 5, wherein in the third fire-proof heat-insulating mortar sub-layer, the fire-proof heat-insulating mortar comprises the following components in parts by weight: ordinary portland cement: 44-45 parts; inorganic lightweight aggregate: 55-56 parts; foaming agent: 5-8 parts; redispersible latex powder: 1-2 parts;
the fireproof heat-preservation mortar and water are mixed according to the proportion of 10: 8.
9. The construction method of the building outer wall according to claim 5, wherein the coating process of the first fireproof thermal insulation mortar sub-layer is as follows: the mixture of each layer is coated in a layered mode, the thickness of the mixture of each layer is smaller than 2 mm, after one layer is coated, the mixture of the next layer is coated after the mixture of the next layer is hardened until the thickness of the first fireproof thermal insulation mortar sublayer reaches the set requirement;
the smearing process of the second fireproof heat-preservation mortar sub-layer and the smearing process of the third fireproof heat-preservation mortar sub-layer are respectively the same as the smearing process of the first fireproof heat-preservation mortar sub-layer.
10. The method for constructing an exterior wall of a building as claimed in claim 9, wherein the outer surface of the base body is waved; in the smearing process of the first fireproof heat-preservation mortar sublayer, each layer of mixture is wavy; in the smearing process of the second fireproof thermal insulation mortar sublayer, each layer of mixture is wavy.
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| CN202011209824.1A CN112408900A (en) | 2020-11-03 | 2020-11-03 | Inorganic lightweight aggregate fireproof thermal insulation mortar for building, wall and construction method |
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| CN202011209824.1A CN112408900A (en) | 2020-11-03 | 2020-11-03 | Inorganic lightweight aggregate fireproof thermal insulation mortar for building, wall and construction method |
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Citations (4)
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| CN102408214A (en) * | 2011-08-22 | 2012-04-11 | 天津市贝乐建筑材料有限公司 | Heat insulation mortar and outer wall construction technology based on the same |
| CN103276826A (en) * | 2013-06-28 | 2013-09-04 | 安徽中瑞节能装饰材料集团有限公司 | Inorganic composite A-class non-combustible insulation board and preparation method thereof |
| CN107840609A (en) * | 2017-12-25 | 2018-03-27 | 安徽金阳金属结构工程有限公司 | A kind of waterproof thermal insulation mortar |
| EP3854762A1 (en) * | 2020-01-21 | 2021-07-28 | SE Tylose GmbH & Co.KG | Composition comprising a hydraulic binder and a cellulose ether |
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2020
- 2020-11-03 CN CN202011209824.1A patent/CN112408900A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408214A (en) * | 2011-08-22 | 2012-04-11 | 天津市贝乐建筑材料有限公司 | Heat insulation mortar and outer wall construction technology based on the same |
| CN103276826A (en) * | 2013-06-28 | 2013-09-04 | 安徽中瑞节能装饰材料集团有限公司 | Inorganic composite A-class non-combustible insulation board and preparation method thereof |
| CN107840609A (en) * | 2017-12-25 | 2018-03-27 | 安徽金阳金属结构工程有限公司 | A kind of waterproof thermal insulation mortar |
| EP3854762A1 (en) * | 2020-01-21 | 2021-07-28 | SE Tylose GmbH & Co.KG | Composition comprising a hydraulic binder and a cellulose ether |
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