CN110540396B - Building disassembly-free heat preservation template and manufacturing method thereof - Google Patents
Building disassembly-free heat preservation template and manufacturing method thereof Download PDFInfo
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- CN110540396B CN110540396B CN201810522910.4A CN201810522910A CN110540396B CN 110540396 B CN110540396 B CN 110540396B CN 201810522910 A CN201810522910 A CN 201810522910A CN 110540396 B CN110540396 B CN 110540396B
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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
- C04B28/10—Lime cements or magnesium oxide cements
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- 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
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
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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
- 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
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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 a building disassembly-free heat preservation template and a manufacturing method thereof, wherein the building disassembly-free heat preservation template comprises a heat preservation layer, an outer protective layer and a connecting piece, wherein the outer protective layer comprises a gridding cloth layer and a polymer mortar layer; the connecting piece includes screw rod and nut, the first end of screw rod has the barrier, the barrier is located outside the outer jacket, the screw rod passes the outer jacket with the heat preservation extends to outside the heat preservation, the nut is located outside the heat preservation and installing the second end of screw rod. The disassembly-free heat-insulation building template and the manufacturing method thereof reduce the construction procedures, reduce the using amount of the template, shorten the construction period and greatly reduce the comprehensive construction cost of the project.
Description
Technical Field
The invention relates to the field of building materials, in particular to a building disassembly-free heat preservation template and a manufacturing method thereof.
Background
In the prior art, for the construction of building wall columns, wall panels and cross beams of frames, shear walls and frame shear structures, a wooden template or a steel template is usually used for fixing, then concrete is poured, the template is removed after the concrete is solidified, and then a heat-insulating layer is made outside the solidified concrete member according to the heat-insulating performance requirement, so that the building wall body meets the heat-insulating and energy-saving requirements. In the method, the concrete pouring template of the building wall body needs to be dismantled and is easy to damage, wood or steel is wasted, the labor intensity is high, the construction procedures are multiple, the construction cost is high, the construction period is long, and the safety risk coefficient is high.
Disclosure of Invention
The invention aims to overcome the defects of more construction procedures and high labor intensity of the prior art that wood or steel is wasted, a heat insulation layer is constructed after a cast-in-place wall is formed, and the invention provides a building disassembly-free heat insulation template with an integrated heat insulation structure and a manufacturing method thereof.
The invention solves the technical problems through the following technical scheme:
the utility model provides a building exempts from to tear open heat preservation template which characterized in that, it includes:
the heat-insulating layer comprises 10-121 parts of siliceous minerals, 60-100 parts of binders, 80-270 parts of mineral activators, 5-15 parts of additives, 1-2 parts of reinforcing fibers, 12-20 parts of graphite polystyrene particles and 40-65 parts of water, wherein the heat-insulating layer has a compressive strength of more than 0.25MPa, a tensile strength of more than 0.2MPa, a bending deformation value of more than 6mm and a heat conductivity coefficient of less than 0.06W/(m.K);
the outer protective layer comprises a mesh fabric layer and a polymer mortar layer, the mesh fabric layer is attached to the outside of the heat insulation layer, and the polymer mortar layer covers the outside of the mesh fabric layer;
the connecting piece, the connecting piece includes screw rod and nut, the first end of screw rod has the barrier, the barrier is located outside the outer jacket, the screw rod passes the outer jacket with the heat preservation extends to outside the heat preservation, the nut is located outside the heat preservation and installing the second end of screw rod.
The adoption of siliceous minerals can improve the combustion performance level of the non-dismantling heat preservation template of the building, the binder and the mineral activator can improve the compression strength and the tensile strength, the reinforced fiber can improve the tensile strength, and the graphite polystyrene particles can obviously reduce the density and the heat conductivity coefficient. The outer jacket can protect the heat preservation not to receive the damage, and the grid cloth layer can increase the joint strength of polymer mortar layer and heat preservation. The connecting piece can make heat preservation and concrete wall more firmly connect, and the stop part can block outside the polymer mortar layer, and the nut can block in concrete wall to accomplish the firm connection of building exempt from to tear open heat preservation template and concrete wall.
Preferably, the siliceous mineral comprises active silica fume, silicon dioxide, vitrified micro bubbles and quartz powder, the binder comprises cement, calcium oxide and fly ash, the mineral activator comprises sodium silicate and sodium fluosilicate, and the additive comprises a water reducing agent, a waterproof agent, redispersible latex powder, cellulose ether, graphite and a foaming agent.
Preferably, the raw material composition comprises the following components in parts by weight: 50 parts of water; 30-50 parts of active silica fume; 3-5 parts of silicon dioxide; 5-6 parts of vitrified micro bubbles; 50-60 parts of quartz powder; 40-50 parts of cement; 25-30 parts of calcium oxide; 8-15 parts of coal ash; 90-110 parts of sodium silicate; 4-5 parts of sodium fluosilicate; 1 part of a water reducing agent; 2 parts of a waterproof agent; 2-3 parts of redispersible latex powder; 2 parts of cellulose ether; 4-5 parts of a foaming agent; 3 parts of graphite; 1 part of reinforcing fiber; 12-15 parts of graphite polystyrene particles.
Preferably, the heat insulation layer is integrally formed. Because the heat preservation integrated into one piece, consequently can guarantee to have sufficient intensity.
Preferably, the polymer mortar layer has a thickness of 5 to 20 mm. The polymer mortar layer can protect the heat-insulating layer from being damaged, if the polymer mortar layer is thinner than 5mm, the protection effect cannot be achieved, and if the polymer mortar layer is thicker than 20mm, the cost can be greatly increased.
Preferably, the blocking portion is a circular disc. Discoid barrier portion can provide sufficient pulling force and effectively be connected with the concrete wall body after guaranteeing template and shaping.
A manufacturing method of a building disassembly-free heat preservation template is characterized by comprising the following steps:
s1, foaming the graphite polystyrene particles for the first time;
s2, uniformly premixing raw material compositions comprising 10-121 parts of siliceous minerals, 60-100 parts of binders, 80-270 parts of mineral activators, 5-15 parts of additives, 1-2 parts of reinforcing fibers, 12-20 parts of graphite polystyrene particles and 40-65 parts of water, and stirring the raw material compositions into gel;
s3, inputting the gel-like raw material composition into a mould with adjustable thickness, compressing and molding the raw material composition in the thickness direction, locking the mould and keeping the raw material composition under pressure;
s4, heating the mould which is fed with the raw material composition and is kept pressure to perform secondary foaming on the graphite polystyrene particles, so that the temperature in the raw material composition reaches 65-130 ℃, the pressure in the raw material composition reaches 0.1-0.3 MPa, and the pressure is kept for more than 8 minutes;
s5, cooling the raw material composition, demolding, maintaining for the first time, and cutting;
s6, laying a mesh fabric layer, laying a polymer mortar layer, and carrying out secondary curing;
and S7, mounting a connecting piece.
Preferably, the raw material composition is compressed by 45 to 55% in the thickness direction to be shaped. If the compression is less than 45%, the strength cannot be obtained, and if the compression exceeds 55%, a very large pressure is required, which increases the cost and easily damages the equipment.
Preferably, the primary foaming step is as follows: and heating and pressurizing the graphite polystyrene particles to foam the graphite polystyrene particles.
Preferably, the mold is locked with a lock. The lock catch is easy to disassemble and lock, and the operation is convenient.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows: the disassembly-free heat preservation template for the building and the manufacturing method thereof reduce the construction process, reduce the using amount of the template, shorten the construction period and greatly reduce the comprehensive construction cost of the project.
Drawings
Fig. 1 is a schematic structural view of a non-dismantling thermal insulation formwork for a building according to a preferred embodiment of the present invention.
Description of reference numerals:
Gridding cloth layer 2
Connecting piece 4
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the invention thereto.
The materials used in the various embodiments of the present invention are specifically described below:
active silica fume: 1250 mesh (also known as silica fume) available from Shanghai Weiterui industry development Co., Ltd
Silicon dioxide: also known as silica, available from Jinbei Fine chemical Co., Ltd, Tianjin
Vitrification of the micro-beads: from ten thousand good energy saving materials Co Ltd
Quartz powder: 600 mesh (also called silica micropowder) purchased from Huzhou Huatian micropowder factory
Cement: 525# from Shanghai Xiexing industries Ltd
Fly ash: class C high calcium ash available from commercial fly ash products of Shanghai City, Ltd
Sodium silicate: also known as water glass, available from Yicheng Jingrui New materials Co., Ltd
Sodium fluosilicate: from Yicheng Jingrui New materials Co., Ltd
Water reducing agent: HF retarding superplasticizer purchased from Shanghai Dongda chemical industry Co., Ltd
Redispersible latex powder: from Guangdong Longhu science & technology GmbH
Cellulose ether: from the Europe brocade chemical industry
Reinforcing fibers: chopped glass fiber from the Euro brocade chemical industry
Graphite: from Liaoyang Xingwang graphite products Ltd
Calcium oxide: also called quick lime, purchased from Taicang City Oriental metallurgy lime products factory
Foaming agent: carbonate or calcium carbonate from Guangzhou Jiangjiang salt chemical Co Ltd
A water-proofing agent: organosilicon waterproofing agent available from Shanghai Xianbang chemical Co., Ltd
Graphite polystyrene particles: f301GT is purchased from Tianjin Stenli New Material Co., Ltd, and the basic manufacturing method is that 5-50% of expanded graphite and 2-20% of phosphate compound are added into Expandable Polystyrene (EPS) as flame retardant to modify the expandable polystyrene, and the expandable polystyrene particles are prepared by suspension polymerization or extrusion.
The test standards used in the various embodiments of the present invention are specified below:
the compressive strength is tested according to GB/T5486-2008 test method for inorganic hard heat insulation products, the tensile strength perpendicular to the plate surface is tested according to GB/T29906 plus 2013 material for molded polyphenyl plate thin-plastered external thermal insulation system, the thermal conductivity is tested according to GB/T10294 plus 2008 method for determining the steady-state thermal resistance of heat insulation materials and related characteristics, the bending deformation is tested according to GB/T10801.1 molded polystyrene foam plastics for heat insulation, and the combustion performance grade is tested according to GB 8624 plus 2012 grading for combustion performance of building materials and products.
Example 1
The feedstock composition of example 1 comprises:
siliceous minerals which comprise 50 parts of active silica fume, 5 parts of silicon dioxide, 6 parts of vitrified micro bubbles and 50 parts of quartz powder;
the binder comprises 50 parts of cement, 30 parts of calcium oxide and 10 parts of fly ash;
mineral excitant, which comprises 105 parts of sodium silicate and 5 parts of sodium fluosilicate;
the additive comprises 1 part of water reducing agent, 2 parts of waterproof agent, 2 parts of redispersible latex powder, 2 parts of cellulose ether, 3 parts of graphite and 4 parts of foaming agent;
reinforcing fibers, in this example chopped glass fibers, 1 part;
15 parts of graphite polystyrene particles;
50 parts of water.
In the method for manufacturing the non-dismantling thermal insulation form for buildings in the embodiment 1, firstly, the graphite polystyrene particles are foamed at one time, the graphite polystyrene particles are heated to increase the expansion volume, and the density of the graphite polystyrene particles is changed correspondingly by setting the steam pressure, so that the required density requirement is met. The steam pressure was set to 0.2MPa, the temperature was set to 100 ℃ and the time for one foaming was 10 seconds, then the pressure was maintained for 30 seconds and then the pressure was reduced for 3 seconds.
Then, taking the sodium silicate solution, quartz powder, calcium oxide, cement and sodium fluosilicate, fully stirring at a set water temperature of 20 ℃, sequentially adding the fly ash, the active silica fume, the cellulose ether, the chopped glass fiber, the water reducing agent, the waterproof agent, the redispersible latex powder, the graphite and the foaming agent, and stirring for 5 minutes (the stirring time is correspondingly adjusted according to the temperature change, and the rotating speed of the stirrer is set to be 300 revolutions per minute) to ensure that the mixture is completely and uniformly stirred to form the pre-mixed cementing material. The addition of sodium silicate can make the mixture possess fire-resisting property. The addition of materials such as graphite can gradually shorten the initial setting time of the mixture, reduce the fluidity of the mixture, and mainly play a role in improving the bending performance and enhancing the compressive strength and the bending strength of a finished product. Meanwhile, the heat conductivity coefficient is reduced, and the heat preservation effect is enhanced.
Then, graphite polystyrene particles are added into a stirring cylinder, and after the stirrer is started, the premixed gel material is added for mixing and stirring, so that the graphite polystyrene particles are fully and uniformly mixed. After repeated tests, the stirring speed needs to be set at 100 rpm and stirred for 5 minutes, and the graphite polystyrene particles shrink and deform when the speed is too high or the stirring time is too long.
Then the stirred mixture (containing graphite polystyrene particles) is input into a mould (the mould is internally padded with glassine paper with the thickness of 1mm, so that later-stage demoulding is facilitated), and the mixture is preliminarily shaped into a platy raw material composition, and the inner cavity of the mould is adjustable in the thickness direction. As the material can shrink in a certain proportion after being heated and pressurized, after a plurality of tests, the height of the material level meter needs to be adjusted to 10cm according to the thickness of a product of 5cm, and the shrinkage proportion is 45 percent. In order to ensure that the mixture is prevented from generating an uneven phenomenon in the process of inputting the mixture into the die, the transmission speed is optimally set to be 1m in 1 minute, and then the die is locked to ensure that the pressure of the raw material composition is kept;
heating the mold fed with the raw material composition and maintaining the pressure, secondarily foaming graphite polystyrene particles to make the temperature inside the raw material composition to 100 ℃, making the pressure inside the raw material composition to 0.2MPa, maintaining for 10 minutes, cooling the raw material composition, demolding, primarily curing, cutting to obtain the heat-insulating layer 1, laying the mesh fabric layer 2 outside the heat-insulating layer 1, then laying the polymer mortar layer 3 outside the mesh fabric layer 2, and secondarily curing, as shown in fig. 1. The curing chamber is dried and ventilated, and the curing time is 7 days.
The heat-insulating layer A is prepared by adopting the preparation process.
At job site erection joint spare 4, the connecting piece includes screw rod and nut, and the first end of screw rod has the barrier, and the barrier is located the outer jacket outside, and the screw rod passes outer jacket and heat preservation and extends to outside the heat preservation, and the nut is located the heat preservation outside and installs the second end at the screw rod. And after the connecting piece is installed, pouring concrete. The template is not removed and is directly used as the heat-insulating outer wall of the concrete wall 5.
The adoption of siliceous minerals can improve the combustion performance level of the non-dismantling heat preservation template of the building, the binder and the mineral activator can improve the compression strength and the tensile strength, the reinforced fiber can improve the tensile strength, and the graphite polystyrene particles can obviously reduce the density and the heat conductivity coefficient. The outer jacket can protect heat preservation 1 not to receive the damage, and the grid cloth layer 2 can increase the joint strength of polymer mortar layer 3 and heat preservation 1. Connecting piece 4 can make heat preservation 1 and concrete wall 5 more firmly connect, and the stop part can block outside polymer mortar layer 3, and the nut can block in concrete wall 5 to accomplish the firm connection of building exempting from to tear open heat preservation template and concrete wall 5.
Example 2
The feedstock composition of this example comprises:
the siliceous mineral comprises 35 parts of active silica fume, 3 parts of silicon dioxide, 5 parts of vitrified micro bubbles and 60 parts of quartz powder;
the binder comprises 40 parts of cement, 30 parts of calcium oxide and 12 parts of fly ash;
the mineral excitant comprises 110 parts of sodium silicate and 5 parts of sodium fluosilicate;
the additive comprises 1 part of water reducing agent, 2 parts of waterproofing agent, 3 parts of redispersible latex powder, 2 parts of cellulose ether, 3 parts of graphite and 5 parts of foaming agent;
reinforcing fibers, in this example chopped glass fibers, 1 part;
15 parts of graphite polystyrene particles;
and 45 parts of water.
The manufacturing method of the non-dismantling thermal insulation building template in the embodiment 2 is basically the same as that in the embodiment 1, except that the temperature applied to the raw material composition during heating is 80 ℃, and the pressure applied to the raw material composition by the mold is 0.15 MPa. The heat-insulating layer B is prepared by adopting the preparation process.
Example 3
The feedstock composition of this example comprises:
siliceous minerals which comprise 40 parts of active silica fume, 4 parts of silicon dioxide, 5 parts of vitrified micro bubbles and 50 parts of quartz powder;
the binder comprises 45 parts of cement, 25 parts of calcium oxide and 10 parts of fly ash;
mineral excitant, which comprises 100 parts of sodium silicate and 5 parts of sodium fluosilicate;
the additive comprises 1 part of water reducing agent, 2 parts of waterproofing agent, 3 parts of redispersible latex powder, 2 parts of cellulose ether, 3 parts of graphite and 5 parts of foaming agent;
reinforcing fibers, in this example chopped glass fibers, 1 part;
15 parts of graphite polystyrene particles;
and 55 parts of water.
The manufacturing method of the non-dismantling thermal insulation building template in the embodiment 3 is basically the same as that in the embodiment 1, except that the temperature applied to the raw material composition during heating is 110 ℃, and the pressure applied to the raw material composition by the mold is 0.15 MPa. The heat-insulating layer C is prepared by adopting the preparation process.
Example 4
The feedstock composition of this example comprised:
siliceous minerals which comprise 45 parts of active silica fume, 4 parts of silicon dioxide, 6 parts of vitrified micro bubbles and 50 parts of quartz powder;
the binder comprises 50 parts of cement, 30 parts of calcium oxide and 15 parts of fly ash;
the mineral exciting agent comprises 90 parts of sodium silicate and 5 parts of sodium fluosilicate;
the additive comprises 1 part of water reducing agent, 2 parts of waterproof agent, 3 parts of redispersible latex powder, 2 parts of cellulose ether, 3 parts of graphite and 5 parts of foaming agent;
1 part of reinforcing fiber, namely chopped glass fiber in the embodiment;
15 parts of graphite polystyrene particles;
60 parts of water.
The manufacturing method of the non-dismantling thermal insulation building template in the embodiment 4 is basically the same as that in the embodiment 1, except that the temperature applied to the raw material composition during heating is 130 ℃, and the pressure applied to the raw material composition by the mold is 0.2 MPa. The heat-insulating layer D is prepared by adopting the preparation process.
Example 5
The feedstock composition of this example comprised:
siliceous minerals which comprise 45 parts of active silica fume, 5 parts of silicon dioxide, 5 parts of vitrified micro bubbles and 50 parts of quartz powder;
the binder comprises 45 parts of cement, 25 parts of calcium oxide and 8 parts of fly ash;
mineral excitant, which comprises 95 parts of sodium silicate and 4 parts of sodium fluosilicate;
the additive comprises 1 part of water reducing agent, 2 parts of waterproofing agent, 2 parts of redispersible latex powder, 2 parts of cellulose ether, 3 parts of graphite and 4 parts of foaming agent;
1 part of reinforcing fiber, namely chopped glass fiber in the embodiment;
12 parts of graphite polystyrene particles;
and 65 parts of water.
The manufacturing method of the non-dismantling thermal insulation building template in the embodiment 5 is basically the same as that in the embodiment 1, except that the temperature applied to the raw material composition during heating is 110 ℃, and the pressure applied to the raw material composition by the mold is 0.25 MPa. The heat-insulating layer E is prepared by adopting the preparation process.
Example 6
The feedstock composition of this example comprises:
the siliceous mineral comprises 50 parts of active silica fume, 5 parts of silicon dioxide, 6 parts of vitrified micro bubbles and 50 parts of quartz powder;
the binder comprises 50 parts of cement, 30 parts of calcium oxide and 10 parts of fly ash;
mineral excitant, which comprises 105 parts of sodium silicate and 5 parts of sodium fluosilicate;
the additive comprises 1 part of water reducing agent, 2 parts of waterproofing agent, 2 parts of redispersible latex powder, 2 parts of cellulose ether, 3 parts of graphite and 4 parts of foaming agent;
1 part of reinforcing fiber, namely chopped glass fiber in the embodiment;
15 parts of graphite polystyrene particles;
50 parts of water.
The manufacturing method of the non-dismantling thermal insulation building template in the embodiment 6 is basically the same as that in the embodiment 1, except that the temperature applied to the raw material composition during heating is 90 ℃, and the pressure applied to the raw material composition by the mold is 0.3 MPa. The heat-insulating layer F is prepared by adopting the preparation process.
The test results of examples 1-6 are shown in Table 1. In order to be used as a building pouring template, the heat-insulating layer is required to meet the requirements of compressive strength of more than 0.25MPa, tensile strength of more than 0.2MPa and bending deformation value of more than 6 mm.
TABLE 1 test results for examples 1-6
| Examples | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 |
| Sample number | A | B | C | D | E | F |
| Compressive strength/MPa | 0.2860 | 0.3250 | 0.3150 | 0.3200 | 0.2950 | 0.3650 |
| Tensile strength/MPa perpendicular to the plate surface | 0.25 | 0.24 | 0.25 | 0.24 | 0.25 | 0.28 |
| Bending deformation/mm | 6.346 | 6.928 | 6.678 | 7.138 | 7.256 | 10.034 |
| Thermal conductivity (25 ℃), W/(m.k) | 0.0552 | 0.0519 | 0.0502 | 0.0495 | 0.0525 | 0.0480 |
| Combustion performance grade | Class A (A2) | Class A (A2) | Class A (A2) | Class A (A2) | Class A (A2) | Class A (A2) |
The embodiments 1 to 6 all meet the conditions of serving as the building pouring formworks, the thermal conductivity coefficients of the embodiments 1 to 6 are all below 0.06W/(m.K), the combustion performance grades are all A2 grades, and the thermal insulation material can be directly used as a thermal insulation layer of the building pouring formworks without dismantling.
Comparative example 1
The building non-dismantling template sample prepared by using rock wool as a heat insulation layer is subjected to performance test, and the test result of the obtained sample is shown in the following table 2:
TABLE 2 test results of rock wool as insulating layer
| Test index | Number of sample |
| Compressive strength/MPa | 0.04 |
| Tensile strength/MPa perpendicular to the plate surface | 0.08 |
| Thermal conductivity (25 ℃), W/(m.K) | 0.048 |
| Combustion performance grade | Class A |
It can be seen from comparative example 1 that the heat conductivity coefficient of the rock wool with grade A combustion performance as the heat insulation layer is equivalent to that of the heat insulation layers of examples 1 to 6, but the sample value of the heat insulation layers of examples 1 to 6 is approximately 10 times that of the rock wool as the heat insulation layer in compressive strength. The sample values for the insulation layers of examples 1-6 were also several times higher than for rock wool as the insulation layer in terms of tensile strength perpendicular to the panel surface.
Comparative example 2
The building non-dismantling template sample prepared by using the XPS extruded sheet (extruded polystyrene foam plastic board) as the heat insulation layer is subjected to performance test, and the test results of the obtained sample are shown in the following table 3:
table 3 test results of XPS extruded sheet as insulation layer
| Test index | Number of samples |
| Compressive strength/MPa | 0.15 |
| Tensile strength/MPa perpendicular to the plate surface | 0.20 |
| Thermal conductivity (25 ℃), W/(m.K) | 0.030 |
| Combustion performance grade | Class A |
It can be seen from comparative example 2 that the insulation layers of examples 1-6 have higher compressive strength and higher tensile strength perpendicular to the panel surface than the samples using XPS extruded sheets as the insulation layers of examples 1-6. Although the values of the samples of the embodiments 1 to 6 are slightly higher than those of the samples using the XPS extruded sheet as the insulating layer in terms of the thermal conductivity coefficient, the comprehensive consideration is that the B-grade insulating material is in practical application according to the national standard of the existing building design fire protection code GB 50016-2014: the outer heat-insulating system adopts a B-grade heat-insulating material, must adopt the matching of fireproof door and window products with the fire endurance not less than 0.5h, and needs to arrange a fireproof isolation strip on each layer, thereby greatly increasing the comprehensive use cost and the construction period and having potential safety hazards.
In conclusion, the disassembly-free heat-insulation building template and the manufacturing method thereof in the embodiments 1 to 6 reduce the construction procedures, reduce the usage amount of the template, shorten the construction period and greatly reduce the comprehensive construction cost of the project.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. The utility model provides a building exempts from to tear open heat preservation template which characterized in that, it includes:
the heat-insulating layer comprises, by weight, 10-121 parts of siliceous minerals, 60-100 parts of binders, 80-270 parts of mineral activators, 5-15 parts of additives, 1-2 parts of reinforcing fibers, 12-20 parts of graphite polystyrene particles and 40-65 parts of water, wherein the heat-insulating layer has a compressive strength of more than 0.25MPa, a tensile strength of more than 0.2MPa, a bending deformation value of more than 6mm and a thermal conductivity coefficient of less than 0.06W/(m ∙ K);
the outer protective layer comprises a gridding cloth layer and a polymer mortar layer, the gridding cloth layer is attached to the outside of the heat-insulating layer, and the polymer mortar layer covers the outside of the gridding cloth layer;
the connecting piece comprises a screw and a screw cap, a blocking part is arranged at the first end of the screw, the blocking part is positioned outside the outer protective layer, the screw penetrates through the outer protective layer and the heat insulation layer and extends out of the heat insulation layer, and the screw cap is positioned outside the heat insulation layer and is installed at the second end of the screw;
the manufacturing method of the building disassembly-free heat preservation template comprises the following steps:
s1, foaming the graphite polystyrene particles for the first time;
s2, uniformly premixing raw material compositions comprising 10-121 parts of siliceous minerals, 60-100 parts of binders, 80-270 parts of mineral activators, 5-15 parts of additives, 1-2 parts of reinforcing fibers, 12-20 parts of graphite polystyrene particles and 40-65 parts of water, and stirring the raw material compositions into gel;
s3, inputting the gelatinous raw material composition into a mould with adjustable thickness, compressing and molding the raw material composition in the thickness direction, locking the mould and keeping the raw material composition under pressure;
s4, heating the mould which is input with the raw material composition and kept pressure to perform secondary foaming on the graphite polystyrene particles, so that the temperature in the raw material composition reaches 65-130 ℃, the pressure in the raw material composition reaches 0.1-0.3 MPa, and the pressure is kept for more than 8 minutes;
s5, cooling the raw material composition, demolding, maintaining for the first time, and cutting;
s6, laying a mesh fabric layer, laying a polymer mortar layer, and carrying out secondary curing;
and S7, mounting a connecting piece.
2. The disassembly-free heat-preservation template for buildings as claimed in claim 1, wherein the siliceous mineral comprises active silica fume, silica, vitrified micro bubbles and quartz powder, the binder comprises cement, calcium oxide and fly ash, the mineral activator comprises sodium silicate and sodium fluosilicate, and the additive comprises a water reducing agent, a waterproof agent, redispersible latex powder, cellulose ether, graphite and a foaming agent.
3. The disassembly-free heat-preservation formwork for buildings as claimed in claim 1, wherein the raw material composition comprises the following components in parts by weight: 50 parts of water; 30-50 parts of active silica fume; 3-5 parts of silicon dioxide; 5-6 parts of vitrified micro bubbles; 50-60 parts of quartz powder; 40-50 parts of cement; 25-30 parts of calcium oxide; 8-15 parts of coal ash; 90-110 parts of sodium silicate; 4-5 parts of sodium fluosilicate; 1 part of a water reducing agent; 2 parts of a waterproof agent; 2-3 parts of redispersible latex powder; 2 parts of cellulose ether; 4-5 parts of a foaming agent; 3 parts of graphite; 1 part of reinforcing fiber; 12-15 parts of graphite polystyrene particles.
4. The non-dismantling thermal insulation formwork for buildings according to claim 1, wherein the thermal insulation layer is integrally formed.
5. The non-dismantling thermal insulation formwork for construction as claimed in claim 1, wherein the thickness of the polymer mortar layer is 5 to 20 mm.
6. The non-dismantling thermal formwork for buildings according to any one of claims 1 to 5, wherein the blocking portion is a circular disc.
7. The method for manufacturing the disassembly-free heat preservation template for the building as claimed in any one of claims 1 to 6, characterized by comprising the following steps:
s1, primary foaming of the graphite polystyrene particles;
s2, uniformly premixing raw material compositions comprising 10-121 parts of siliceous minerals, 60-100 parts of binders, 80-270 parts of mineral activators, 5-15 parts of additives, 1-2 parts of reinforcing fibers, 12-20 parts of graphite polystyrene particles and 40-65 parts of water, and stirring the raw material compositions into gel;
s3, inputting the gel-like raw material composition into a mould with adjustable thickness, compressing and molding the raw material composition in the thickness direction, locking the mould and keeping the raw material composition under pressure;
s4, heating the mould which is fed with the raw material composition and is kept pressure to perform secondary foaming on the graphite polystyrene particles, so that the temperature in the raw material composition reaches 65-130 ℃, the pressure in the raw material composition reaches 0.1-0.3 MPa, and the pressure is kept for more than 8 minutes;
s5, cooling the raw material composition, demolding, maintaining for the first time, and cutting;
s6, laying a gridding cloth layer, laying a polymer mortar layer, and carrying out secondary curing;
and S7, mounting a connecting piece.
8. The method for manufacturing the disassembly-free heat preservation template for the building as claimed in claim 7, wherein the raw material composition is compressed by 45-55% in the thickness direction for molding.
9. The method for manufacturing the disassembly-free heat preservation template for the building as claimed in claim 7, wherein the primary foaming step is as follows: and heating and pressurizing the graphite polystyrene particles to foam the graphite polystyrene particles.
10. The method for manufacturing the disassembly-free heat preservation formwork for the building as claimed in any one of claims 7 to 9, wherein the formwork is locked by a lock catch.
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| CN111153671B (en) * | 2020-02-26 | 2022-01-11 | 廊坊华津保温材料有限公司 | Production process of integrated non-dismantling external wall template with thermal insulation structure |
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