CN109881884B - Reinforced building disassembly-free heat preservation template and preparation method thereof - Google Patents
Reinforced building disassembly-free heat preservation template and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a reinforced building disassembly-free heat preservation template and a preparation method thereof. The reinforced building disassembly-free heat preservation template is of an integrated structure and comprises at least one layer of reinforcing net and at least one layer of heat preservation material layer; when the reinforced building disassembly-free heat insulation template comprises at least two heat insulation material layers and/or at least two reinforcing nets, the reinforcing nets and the heat insulation material layers are alternately arranged; the raw material composition of the heat-insulating material layer comprises 20-120 parts of siliceous materials, 10-111 parts of binders, 1-21 parts of polystyrene particles and water, wherein the binders comprise calcium oxide and/or calcium hydroxide. The reinforced type disassembly-free heat insulation template for the building has A-level fireproof performance, can effectively eliminate fire hazard caused by flammability of heat insulation materials, can be directly used as a construction concrete wall pouring disassembly-free template and plays a heat insulation role, enables the wall to be integrated with a heat insulation structure, and effectively solves the problem of falling off of the heat insulation materials.
Description
Technical Field
The invention relates to a reinforced building disassembly-free heat preservation template and a preparation method thereof.
Background
At present, for the construction of building wall columns, wall plates 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 dismantled after the concrete is solidified, and then a heat-insulating layer is required to be arranged outside the solidified concrete component according to the heat-insulating and energy-saving requirements so as to meet the heat-insulating and energy-saving requirements. The method not only wastes wood or steel (pouring the concrete template on the building wall), but also increases the labor intensity, has more construction procedures, fussy process, high construction cost, long construction period and high safety risk coefficient.
In addition, the traditional external-pasting external-hanging heat preservation technology has a plurality of defects, and the accidents of cracking and falling off of the heat preservation layer, injury to people and car damage happen occasionally. In recent years, hundreds of external wall thermal insulation cracking and falling accidents occur from south to north in China, and under the background, how to find a solution for effectively solving the falling of the thermal insulation material is a technical problem to be solved in the field.
Disclosure of Invention
The invention provides a reinforced building disassembly-free heat preservation template and a preparation method thereof, and aims to overcome the defects that building heat preservation materials are easy to fall off, the manufacturing process is complicated, the cost is high and the like in the prior art. The reinforced building disassembly-free heat insulation template disclosed by the invention realizes the integration of a building heat insulation structure, has better bending strength, impact strength, tensile strength, low heat conductivity coefficient and good fireproof performance (A-grade non-combustible), reduces the whole thickness of the building heat insulation layer, reduces the building volume rate, solves the problem of falling off of the building heat insulation layer, greatly reduces the construction period and the construction amount of the traditional template, improves the construction efficiency and realizes the remarkable effect of reducing the construction cost.
The invention solves the technical problems through the following technical scheme.
The invention provides a reinforced type building disassembly-free heat preservation template which is of an integrated structure and comprises at least one layer of reinforcing net and at least one layer of heat preservation material layer;
when the reinforced building disassembly-free heat insulation template comprises at least two heat insulation material layers and/or at least two reinforcing nets, the reinforcing nets and the heat insulation material layers are alternately arranged;
the raw material composition of the heat-insulating material layer comprises 20-120 parts of siliceous materials, 10-111 parts of binders, 1-21 parts of polystyrene particles and water, wherein the binders comprise calcium oxide and/or calcium hydroxide.
In the present invention, the term "integrated structure" means that the reinforcing mesh is combined with the thermal insulation material layer in an embedded manner, which is known to those skilled in the art.
In the invention, preferably, the reinforced building disassembly-free heat preservation template comprises a layer of reinforcing net and a layer of heat preservation material layer.
In the invention, preferably, the reinforced building disassembly-free heat preservation template comprises a heat preservation material layer and reinforcing nets compounded on two sides of the heat preservation material layer.
In the invention, preferably, the reinforced building disassembly-free heat preservation template comprises two layers of reinforcing nets and two layers of heat preservation material layers, wherein the reinforcing nets and the heat preservation material layers are alternately arranged.
In the invention, the thickness of the reinforced building disassembly-free heat preservation template can be conventional in the field, and can be made into different thicknesses according to needs, for example, the thickness can be 2-10 cm.
In the invention, the reinforcing mesh is a reinforcing mesh which is conventionally used in the building field, and the material of the reinforcing mesh is not particularly limited as long as the bending load and the impact strength of the reinforced non-dismantling heat preservation formwork for the building can be improved, for example, the reinforcing mesh can be a metal mesh or a glass fiber mesh, and the metal mesh is preferably a steel mesh, a stainless steel mesh, a wire mesh and the like.
In the invention, the specification of the reinforcing net is not specially limited, as long as the reinforced building disassembly-free heat preservation template can reach the compressive strength and the tensile strength. Wherein the wire diameter of the metal mesh may be 0.3-1.5mm, such as 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm or 1.4 mm. The pore size of the metal mesh may be 3-15mm, for example 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm and 14 mm. The specification of the glass fiber net can be 160-300g and can also be 240 g.
In the present invention, the raw material composition may preferably further include an additive. The additives are those conventionally used in the art, and include, for example, water reducing agents, water proofing agents, redispersible latex powders, cellulose ethers, graphite, and foaming agents.
The amount of the water reducing agent can be conventional in the art, and is preferably 1.5 to 3.5 parts, more preferably 2.57 to 2.99 parts, such as 2.66, 2.72, 2.78, 2.84, 2.90 or 2.96 parts.
The cellulose ether generally refers to a polymer compound having an ether structure made of cellulose. The cellulose ether may be used in an amount conventional in the art, preferably from 0.3 to 1 part, more preferably from 0.57 to 0.66 part, for example 0.59, 0.60, 0.62, 0.63 or 0.64 part.
In the invention, the siliceous material is a siliceous mineral which is conventionally used in the field, the main component is silicon dioxide, and the manifestation form of the siliceous material can comprise one or more of silicon micropowder, vitrified micro bubbles, quartz powder, kaolin, bentonite, water glass and diatomite.
In the present invention, the polystyrene particles are preferably also graphite polystyrene particles containing graphite.
In the present invention, the amount of the siliceous material is preferably 24.48 to 110.16 parts, more preferably 36.72 to 107.71 parts, for example, 48.96, 61.20, 73.44, 85.68, 92.48, 95.74, 97.92, 100.10, 100.16, 102.27, 104.45 or 106.62 parts.
In the present invention, the amount of the binder is preferably 12.24 to 110.16 parts, more preferably 23.12 to 97.92 parts, such as 23.94, 24.48, 25.02, 25.57, 26.11, 26.66, 26.93, 36.72, 48.96, 61.20, 73.44 or 85.68 parts.
In the present invention, the fraction of the polystyrene particles is preferably 1.40 to 16.80, more preferably 2.8 to 14.00, such as 5.6, 8.4 or 11.2.
In the present invention, the amount of water used may be conventional in the art, and is preferably 40 to 65 parts, more preferably 45 to 60 parts, for example 50 parts.
In the present invention, the raw material composition of the thermal insulation material layer preferably includes the following components in parts by weight: 20-120 parts of siliceous materials, 10-100 parts of calcium oxide and/or calcium hydroxide, 1-21 parts of polystyrene particles, 40-65 parts of water, 0.3-1 part of cellulose ether and 1.5-3.5 parts of water reducing agents.
The invention also provides a preparation method of the reinforced building disassembly-free heat preservation template, which comprises the following steps:
pretreating the raw material composition of the heat-insulating material layer, compounding the pretreated raw material composition with the reinforcing net in a mould, then performing compression molding, keeping pressure, heating, cooling and demolding;
when the reinforced building disassembly-free heat insulation template comprises at least two layers of heat insulation material layers and/or at least two layers of reinforcing nets, the heat insulation material layers and the reinforcing nets are alternately compounded.
In the present invention, the operation and conditions of the pretreatment may be conventional in the art, and for example, the pretreatment may include the following steps:
and uniformly mixing the expanded polystyrene particles with other substances in the raw materials of the heat-insulating material layer.
Wherein the operation and conditions of the foaming of the polystyrene particles may be conventional in the art, for example, the temperature of the foaming may be 90 to 110 ℃, preferably 100 ℃; the foaming time can be 10-15 s; the foaming pressure may be 0.2-0.3 MPa.
Wherein the operation and conditions of the mixing may be conventional in the art, for example, the mixing may be achieved by stirring, preferably at a speed of 100-.
In the invention, the reinforcing mesh is a reinforcing mesh which is conventionally used in the building field, and the material of the reinforcing mesh is not particularly limited as long as the bending load and the impact strength of the reinforced non-dismantling heat preservation formwork for the building can be improved, for example, the reinforcing mesh can be a metal mesh or a glass fiber mesh, and the metal mesh is preferably a steel mesh, a stainless steel mesh, a wire mesh and the like.
In the present invention, the specification of the reinforcing mesh is not particularly limited as long as the reinforced type building detachment-free insulation formwork can achieve the bending load and the impact strength of the reinforced type building detachment-free insulation formwork, and the mesh wire diameter of the metal mesh may be 0.3 to 1.5mm, for example, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, or 1.4 mm. The pore size of the metal mesh may be 3-15mm, for example 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm and 14 mm.
In the present invention, the mold may be a mold conventionally used in the art, and preferably, the height of the mold is adjustable.
In the present invention, preferably, when the reinforcing mesh has at least two layers, the reinforcing mesh has the same material and size specification.
In the present invention, when the reinforcing mesh has at least two layers, the reinforcing mesh may be made of different materials.
In the present invention, preferably, the compression is performed in the thickness direction of the raw material composition, and the compression amount of the compression is preferably 45 to 55%. 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.
In the present invention, the heating temperature is preferably 60-200 ℃, more preferably 140-170 ℃.
In the present invention, preferably, the heating is performed so that the pressure inside the raw material composition reaches 0.1MPa to 0.3MPa,
in the present invention, the heating time is preferably at least 2 minutes, more preferably 8 to 10 minutes.
In the invention, after the demolding, the reinforced building disassembly-free heat preservation template is preferably maintained, and the maintenance can be carried out in a maintenance room. Those skilled in the art will appreciate that the conditions in the curing chamber are preferably dry, vented.
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 reagents and starting materials used in the present invention are commercially available.
The positive progress effects of the invention are as follows:
the reinforced type building disassembly-free heat preservation template is characterized by having A-level fireproof performance, effectively avoiding fire hazard caused by flammability of heat preservation materials, having high strength, high toughness, low water absorption rate, low heat conductivity coefficient, strong nail holding force, difficult falling, difficult pulverization and convenient construction, being directly used as a building concrete wall body pouring disassembly-free template to play a role in building heat preservation, being connected with a wall body into a whole, and forming an integration of a heat preservation structure. The construction process and the using amount of the template are reduced, the construction period is shortened, the construction efficiency is improved, and the comprehensive construction cost of the project is greatly reduced. And the construction of the original wall body required to be finished is adjusted to be synchronous with the cast-in-place wall body from the construction node, so that the integration degree of the heat-insulating layer and the wall body is greatly increased, and the problem of falling-off of the heat-insulating material is effectively solved.
Drawings
Fig. 1 is a top view of a reinforced building non-dismantling thermal insulation formwork in embodiment 1 of the present invention.
Fig. 2 is a front view of the reinforced building disassembly-free heat preservation formwork in embodiment 1 of the present invention.
Fig. 3 is a front view of a reinforced building non-dismantling thermal insulation form in embodiment 192 of the present invention.
Fig. 4 is a front view of the reinforced building non-dismantling thermal insulation form in embodiment 193 of the present invention.
Fig. 5 is a front view of the reinforced non-dismantling thermal insulation form for building in embodiment 194 of the present invention.
Description of reference numerals:
second Steel mesh layer 1
Insulating material layer 2
First steel mesh layer 3
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention. The experimental methods without specifying specific conditions in the following examples were selected according to the conventional methods and conditions, or according to the commercial instructions.
The materials used in the various embodiments of the present invention are specifically illustrated below:
steel mesh: from Chengxin Screen works in Anping county
Glass fiber net: glass fiber Co Ltd for Yaojiesheng
Active silica fume: 1250 mesh (also known as silica fume) available from Shanghai Weiterrui Utility Co., Ltd
Calcium oxide: also known as quicklime, from east metallurgy lime product factory of Taicang City
Water reducing agent: HF retarding superplasticizer purchased from Shanghai Dongdong chemical industry Co Ltd
Cellulose ether: from the Europe brocade chemical industry
Polystyrene particles: from Wuxi Xingda bubble Plastic New Material Co Ltd
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 and 2013 material for molded polystyrene plate thin plastered external wall external heat insulation system, the combustion performance grade is tested according to GB 8624 and 2012 classification of combustion performance of building materials and products, and the bending deformation is tested according to GB/T10801.1 molded polystyrene foam plastic for heat insulation.
Examples 1 to 17
The raw material components and parts by weight of examples 1 to 9 are shown in table 1.
The raw material components and parts by weight of examples 10 to 17 are shown in table 2.
The raw material components and parts by weight of comparative examples 1 to 2 are shown in table 2.
TABLE 1
TABLE 2
Note: in tables 1 and 2, a indicates the amount of the polystyrene particles, and B indicates the amounts of the silica fume, the calcium oxide, the cellulose ether and the water reducing agent.
Example 18
In this example, the kind and amount of other substances were the same as in example 1 except that cellulose ether and a water reducing agent were not contained.
Example 19
In this example, the same amount of calcium hydroxide was used instead of calcium oxide in example 1, and the kinds and amounts of other substances were the same as in example 1.
Example 1
The composition of the raw material composition of the insulation layer of this example is shown in Table 1.
The preparation process comprises the following steps:
the polystyrene particles are foamed at one time, the polystyrene particles are heated to increase the expansion volume, and the density of the polystyrene particles is correspondingly changed by setting the steam pressure, so that the required density is achieved. 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.
The expanded polystyrene particles and other materials corresponding to those in table 1 were uniformly stirred and mixed, and then poured into a mold in which a first steel mesh layer 3 was laid, and then a second steel mesh layer 1 was laid over the mold into which the raw material mixture was poured, followed by compression molding with pressure maintenance, heating at 60 ℃ to make the internal pressure of the raw material composition reach 0.2MPa, holding for 10 minutes, cooling, demolding, and then placing in a dry and ventilated curing room for curing.
In the embodiment, the sizes and specifications of the first steel mesh layer and the second steel mesh layer are completely the same, the diameter of the steel wire is 0.8mm, and the aperture of the steel mesh is 8 mm.
The reinforced building non-dismantling heat preservation template of the embodiment is shown in a top view in figure 1 and a front view in figure 2.
Example 2
The composition of the raw material composition of the insulation layer of this example is shown in Table 1.
The preparation process comprises the following steps:
the heating temperature was 200 ℃ after compression molding and pressure holding, so that the internal pressure of the raw material composition reached 0.15MPa, and the holding time was 2min, except for the same conditions as in example 1.
Example 3
The composition of the raw material composition of the insulation layer of this example is shown in Table 1.
The preparation process comprises the following steps:
the heating temperature was 140 ℃ after compression molding and pressure holding, and the internal pressure of the raw material composition was 0.15MPa and held for 10 minutes, under the same conditions as in example 1.
Example 4
The composition of the raw material composition of the insulation layer of this example is shown in Table 1.
The preparation process comprises the following steps:
the heating temperature was 170 ℃ after compression molding and pressure holding, and the internal pressure of the raw material composition was 0.2MPa and held for 10 minutes, under the same conditions as in example 1.
Examples 5 to 17, comparative examples 1 and 2
The procedure was the same as in example 1.
Examples 18 and 19
The preparation process is the same as that of the embodiment 1, and the effect of the prepared insulation board is equivalent to that of the insulation board prepared in the embodiment 1.
Comparative example 3
The insulation material in the insulation form of this comparative example was rock wool, which was purchased from okson (beijing) new materials science and technology ltd.
Comparative example 4
The thermal insulation material in the thermal insulation template of the comparative example is an XPS extruded sheet thermal insulation core material which is purchased from Oaksen (Beijing) New Material science and technology Co.
Effect example 1
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 and 2013 material for molded polyphenyl plate thin-plastered external wall external heat insulation system, and the combustion performance grade is tested according to GB 8624 and 2012 grading combustion performance of building materials and products. The results of the tests of examples 1 to 17 and comparative examples 1 to 2 are shown in tables 3 and 4, and the data of the effects of comparative examples 3 and 4 are shown in table 5.
TABLE 3
TABLE 4
TABLE 5
| Compressive strength/MPa | Vertical board surfaceTensile strength of (2)/MPa | Grade of combustion performance | |
| Comparative example 3 | ≥0.04 | ≥0.08 | Class A |
| Comparative example 4 | ≥0.20 | ≥0.15 | Class B |
The comparison shows that the indexes of the compressive strength and the tensile strength of the reinforced type disassembly-free heat preservation template for the building are obviously superior to those of a rock wool heat preservation template with the grade A fireproof performance; compared with an XPS extruded sheet heat-insulating template, the strength value is similar but higher than that of the XPS extruded sheet, and in the aspect of fire prevention, the heat-insulating material is A-grade non-combustible, and the heat-insulating material of the XPS extruded sheet is only B-grade non-combustible, so that the heat-insulating material has better effect on safety.
Examples 20 to 32
The first steel mesh layer and the second steel mesh layer of each of examples 20 to 32 have the same size and specification, the diameter of the steel wire of the first steel mesh layer (the second steel mesh layer) is 1.0mm in examples 20 to 32, the pore diameters of the steel mesh are 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm and 15mm, respectively, and the impact strength and the bending load of the reinforced building non-dismantling thermal insulation formwork in examples 20 to 32 are shown in table 6. The remaining conditions were the same as in example 1.
TABLE 6
Examples 33 to 45
The first steel mesh layer and the second steel mesh layer of each of examples 33 to 45 have the same size and specification, the diameter of the steel wire of the first steel mesh layer (the second steel mesh layer) is 1.1mm in examples 33 to 45, the pore diameters of the steel mesh are 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm and 15mm, respectively, and the impact strength and the bending load of the reinforced building non-dismantling thermal insulation formwork in examples 33 to 45 are shown in table 7. The remaining conditions were the same as in example 1.
TABLE 7
Examples 46 to 58
The first steel mesh layer and the second steel mesh layer of each of examples 46 to 58 have the same size and specification, the diameter of the steel wire of the first steel mesh layer (the second steel mesh layer) is 1.2mm in examples 46 to 58, the pore diameters of the steel mesh are 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm and 15mm, respectively, and the impact strength and the bending load of the reinforced building non-dismantling thermal insulation formwork in examples 46 to 58 are shown in table 8. The remaining conditions were the same as in example 1.
TABLE 8
Examples 59 to 71
The first steel mesh layer and the second steel mesh layer of each of examples 59 to 71 have the same size and specification, the diameter of the steel wire of the first steel mesh layer (the second steel mesh layer) is 1.3mm, the pore size of the steel mesh is 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm and 15mm, respectively, in examples 59 to 71, and the impact strength and the bending load of the reinforced building non-dismantling thermal insulation formwork in examples 59 to 71 are shown in table 9. The remaining conditions were the same as in example 1.
TABLE 9
Examples 72 to 84
The first steel mesh layer and the second steel mesh layer of each of examples 72 to 84 are identical in size and specification, the diameter of the steel wire of the first steel mesh layer (the second steel mesh layer) is 1.4mm in examples 72 to 84, the pore diameters of the steel mesh are 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm and 15mm, respectively, and the impact strength and the bending load of the reinforced building non-dismantling thermal insulation formwork in examples 72 to 84 are shown in table 10. The remaining conditions were the same as in example 1.
Watch 10
Examples 85 to 97
The first steel mesh layer and the second steel mesh layer of each of examples 85 to 97 have the same size and specification, the diameter of the steel wire of the first steel mesh layer (the second steel mesh layer) is 1.5mm in examples 85 to 97, the pore diameters of the steel mesh are 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm and 15mm, respectively, and the impact strength and the bending load of the reinforced construction non-dismantling thermal insulation formwork in examples 85 to 97 are shown in table 11. The remaining conditions were the same as in example 1.
TABLE 11
Examples 98 to 110
The first steel mesh layer and the second steel mesh layer of each of examples 98-110 are identical in size and specification, the diameter of the steel wire of the first steel mesh layer (the second steel mesh layer) is 0.3mm in examples 98-110, the pore diameters of the steel mesh are 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm and 15mm respectively, and the impact strength and the bending load of the reinforced building non-dismantling heat preservation formwork in examples 98-110 are shown in table 12. The remaining conditions were the same as in example 1.
TABLE 12
Example 111-
The sizes and specifications of the first steel mesh layer and the second steel mesh layer of each example in the example 111-123 are completely the same, the diameter of the steel wire of the first steel mesh layer (the second steel mesh layer) in the example 111-123 is 0.4mm, the pore diameters of the steel meshes are respectively 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm and 15mm, and the impact strength and the bending load of the reinforced building non-dismantling heat preservation formwork in the example 111-123 are shown in table 13. The remaining conditions were the same as in example 1.
Watch 13
Example 124-
The sizes and specifications of the first steel mesh layer and the second steel mesh layer of each of the embodiments 124-136 are completely the same, the diameter of the steel wire of the first steel mesh layer (the second steel mesh layer) in the embodiments 124-136 is 0.5mm, the hole diameters of the steel mesh layers are respectively 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm and 15mm, and the impact strength and the bending load of the reinforced building non-dismantling heat preservation formwork in the embodiments 124-136 are shown in table 14. The remaining conditions were the same as in example 1.
TABLE 14
Example 137-
The sizes and specifications of the first steel mesh layer and the second steel mesh layer of each of the embodiments 137-149 are completely the same, the diameter of the steel wire of the first steel mesh layer (the second steel mesh layer) in the embodiments 137-149 is 0.6mm, the pore diameters of the steel meshes are 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm and 15mm, respectively, and the impact strength and the bending load of the reinforced building non-dismantling heat preservation formwork in the embodiments 137-149 are shown in table 15. The remaining conditions were the same as in example 1.
Watch 15
Example 150-
The first steel mesh layer and the second steel mesh layer of each example in the example 150-162 are identical in size and specification, the diameter of the steel wire of the first steel mesh layer (the second steel mesh layer) in the example 150-162 is 0.7mm, the pore diameters of the steel mesh layers are 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm and 15mm, respectively, and the impact strength and the bending load of the reinforced building non-dismantling heat preservation formwork in the example 150-162 are shown in table 16. The remaining conditions were the same as in example 1.
TABLE 16
Example 163-
The sizes and specifications of the first steel mesh layer and the second steel mesh layer of each example in the example 163-. The remaining conditions were the same as in example 1.
TABLE 17
Example 176-
The sizes and specifications of the first steel mesh layer and the second steel mesh layer of each of the embodiments 176-188 are completely the same, the diameter of the steel wire of the first steel mesh layer (the second steel mesh layer) in the embodiments 176-188 is 0.9mm, the hole diameters of the steel mesh layers are 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm and 15mm, respectively, and the impact strength and the bending load of the reinforced building non-dismantling heat preservation formwork in the embodiments 176-188 are shown in table 18. The remaining conditions were the same as in example 1.
Watch 18
Example 189
The composition of the raw material composition of the heat-retaining material layer in this example was the same as in example 1, and the preparation process was the same as in example 1. The gauge of the glass fiber web used in this example was 300 g.
Example 190
The composition of the raw material composition of the heat-retaining material layer in this example was the same as in example 1, and the preparation process was the same as in example 1. The gauge of the glass fiber web used in this example was 240 g.
Example 191
The composition of the raw material composition of the heat-retaining material layer in this example was the same as in example 1, and the preparation process was the same as in example 1. The gauge of the glass fiber web used in this example was 160 g.
Effect example 2
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 and 2013 material for molded polyphenyl plate thin-plastered external wall external heat insulation system, and the combustion performance grade is tested according to GB 8624 and 2012 grading combustion performance of building materials and products. The results of the above detection in example 189-191 are shown in Table 19.
Watch 19
Example 192
The composition of the raw material composition of the insulating material layer of this example was the same as that of example 1.
The preparation process comprises the following steps:
the polystyrene particles are foamed at one time, the polystyrene particles are heated to increase the expansion volume, and the density of the polystyrene particles is correspondingly changed by setting the steam pressure, so that the required density is achieved. 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.
The foamed polystyrene particles and other materials corresponding to those in table 1 were uniformly mixed and stirred, and then injected into a mold with a steel mesh 4 laid thereon, and then compression-molded and kept under pressure, and then heated at 60 ℃ to make the pressure inside the raw material composition reach 0.2MPa, kept for 10 minutes, cooled and demolded, and then placed in a dry and ventilated curing room for curing.
The steel mesh used in this example had a diameter of 0.8mm and a mesh aperture of 8 mm.
The front view of the reinforced building disassembly-free heat preservation template of the embodiment is shown in figure 3.
The effect of the reinforced building disassembly-free heat preservation template prepared by the embodiment is equivalent to that prepared by the embodiment 1.
Example 193
The composition of the raw material composition of the insulating material layer of this example was the same as that of example 1.
The preparation process comprises the following steps:
the polystyrene particles are foamed at one time, the polystyrene particles are heated to increase the expansion volume, and the density of the polystyrene particles is correspondingly changed by setting the steam pressure, so that the required density is achieved. 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. Two portions were prepared.
Uniformly stirring and mixing the foamed polystyrene particles and other substances corresponding to the substances in the table 1 (preparing two parts), then injecting the mixture into a mold paved with a first steel mesh layer 3, then paving a second steel mesh layer 1 above the mold injected with the raw material mixture, then injecting the other part of the pretreated heat-insulating material composition into the mold, then performing compression molding and maintaining the pressure, then heating at 200 ℃ to enable the pressure inside the raw material composition to reach 0.2MPa, maintaining for 3 minutes, cooling and demolding, and then placing the mixture into a dry and ventilated curing chamber for curing.
The steel mesh used in this example had a diameter of 0.8mm and a mesh aperture of 8 mm.
The front view of the reinforced building disassembly-free heat preservation template of the embodiment is shown in figure 4.
The effect of the reinforced building disassembly-free heat preservation template prepared by the embodiment is equivalent to that prepared by the embodiment 1.
Example 194
The composition of the raw material composition of the insulating material layer of this example was the same as that of example 1.
The preparation process comprises the following steps:
the polystyrene particles are foamed at one time, the polystyrene particles are heated to increase the expansion volume, and the density of the polystyrene particles is correspondingly changed by setting the steam pressure, so that the required density is achieved. 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. Two portions were prepared.
Uniformly stirring and mixing the foamed polystyrene particles and other substances corresponding to the substances in the table 1 (preparing two parts), then injecting the mixture into a mold, paving a steel mesh 4 above the mold into which the raw material mixture is injected, then injecting the other part of the pretreated heat-insulating material composition into the mold, then performing compression molding and maintaining the pressure, then heating the mixture at 200 ℃ to enable the pressure inside the raw material composition to reach 0.2MPa, maintaining the pressure for 8 minutes, cooling and demolding, and then placing the mixture into a dry and ventilated curing room for curing.
The steel mesh used in this example had a diameter of 0.8mm and a mesh aperture of 8 mm.
The front view of the reinforced building disassembly-free heat preservation template of the embodiment is shown in figure 5.
The effect of the reinforced building disassembly-free heat preservation template prepared by the embodiment is equivalent to that prepared by the embodiment 1.
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 (17)
1. A reinforced type building disassembly-free heat preservation template is characterized in that the reinforced type building disassembly-free heat preservation template is of an integrated structure and comprises at least one layer of reinforcing net and at least one layer of heat preservation material layer;
when the reinforced building disassembly-free heat insulation template comprises at least two heat insulation material layers and/or at least two reinforcing nets, the reinforcing nets and the heat insulation material layers are alternately arranged;
the raw material composition of the heat-insulating material layer comprises 20-120 parts of siliceous materials, 10-111 parts of binders, 1-21 parts of polystyrene particles and water, wherein the binders are calcium oxide and/or calcium hydroxide;
the siliceous matter is one or more of micro silicon powder, vitrified micro bubbles, quartz powder, kaolin, bentonite, water glass and diatomite.
2. The reinforced disassembly-free heat preservation formwork for buildings according to claim 1, wherein the integrated structure is that the reinforcing mesh is combined with the heat preservation material layer in an embedded manner;
and/or the reinforced building disassembly-free heat preservation template comprises a layer of reinforcing net and a layer of heat preservation material layer; or the reinforced building disassembly-free heat insulation template comprises a heat insulation material layer and reinforcing nets compounded on two sides of the heat insulation material layer; or the reinforced building disassembly-free heat insulation template comprises two layers of reinforcing nets and two layers of heat insulation material layers, wherein the reinforcing nets and the heat insulation material layers are alternately arranged;
and/or the reinforcing mesh is a metal mesh or a glass fiber mesh.
3. The reinforced disassembly-free heat preservation formwork for buildings as claimed in claim 2, wherein the metal mesh is steel mesh, stainless steel mesh or iron wire mesh;
and/or the diameter of the metal mesh wire is 0.3-1.5 mm;
and/or the pore diameter of the metal net is 3-15 mm.
4. The reinforced disassembly-free heat preservation formwork for buildings as claimed in claim 3, wherein the diameter of the mesh of the metal mesh is 0.6-1.2 mm;
and/or the pore diameter of the metal net is 6-12 mm.
5. The reinforced disassembly-free heat preservation formwork for buildings according to claim 4, wherein the diameter of the mesh of the metal mesh is 0.8 mm; and/or the aperture of the metal net is 8 mm.
6. The reinforced type disassembly-free heat preservation formwork for buildings as claimed in claim 1, wherein in the raw material composition, the weight ratio of the polystyrene particles to the raw materials except the water and the polystyrene particles is (1-16): (84-99);
and/or, the raw material composition further comprises an additive; the additive comprises a water reducing agent, a waterproof agent, redispersible latex powder, cellulose ether, graphite and a foaming agent;
and/or the polystyrene particles are also graphite polystyrene particles containing graphite;
and/or the using amount of the siliceous matter is 24.48-110.16 parts;
and/or the using amount of the binder is 12.24-110.16 parts;
and/or the dosage of the polystyrene particles is 1.40-16.80 parts;
and/or the using amount of the water is 40-65 parts.
7. The reinforced disassembly-free heat preservation formwork for buildings as claimed in claim 6, wherein in the raw material composition, the weight ratio of the polystyrene particles to the raw materials except the water and the polystyrene particles is 2:98, 4:93, 6:94, 8:92, 10:90, 12:88 or 15: 85;
and/or the amount of the water reducing agent is 1.5-3.5 parts;
and/or the dosage of the cellulose ether is 0.3-1 part;
and/or the using amount of the siliceous material is 36.72-107.71 parts;
and/or the using amount of the binder is 23.12-97.92 parts;
and/or the dosage of the polystyrene particles is 2.8-14.00 parts;
and/or the using amount of the water is 45-60 parts.
8. The reinforced type disassembly-free heat preservation formwork for the building as recited in claim 7, wherein the amount of the water reducing agent is 2.57-2.99 parts;
and/or the dosage of the cellulose ether is 0.57-0.66 parts.
9. The reinforced type disassembly-free heat preservation formwork for buildings as claimed in claim 8, wherein the amount of the water reducing agent is 2.66, 2.72, 2.78, 2.84, 2.90 or 2.96 parts;
and/or the cellulose ether is used in an amount of 0.59, 0.60, 0.62, 0.63 or 0.64 parts.
10. The reinforced disassembly-free thermal insulation building formwork of claim 7, wherein the amount of the siliceous material is 48.96, 61.20, 73.44, 85.68, 92.48, 95.74, 97.92, 100.10, 100.16, 102.27, 104.45 or 106.62 parts;
and/or the binder is used in an amount of 23.94, 24.48, 25.02, 25.57, 26.11, 26.66, 26.93, 36.72, 48.96, 61.20, 73.44 or 85.68 parts;
and/or the polystyrene particles are used in an amount of 5.6, 8.4 or 11.2 parts;
and/or the water is used in 50 parts.
11. The reinforced disassembly-free heat preservation formwork for the buildings as claimed in any one of claims 6 to 10, wherein the raw material composition of the heat preservation material layer comprises the following components in parts by weight: 20-120 parts of siliceous materials, 10-100 parts of calcium oxide and/or calcium hydroxide, 1-21 parts of polystyrene particles, 40-65 parts of water, 0.3-1 part of cellulose ether and 1.5-3.5 parts of water reducing agents.
12. A method for preparing a reinforced construction disassembly-free heat preservation template as recited in any one of claims 1 to 11, which comprises the following steps:
pretreating the raw material composition of the heat-insulating material layer, compounding the pretreated raw material composition with the reinforcing net in a mould, then performing compression molding, keeping pressure, heating, cooling and demolding;
when the reinforced building disassembly-free heat insulation template comprises at least two layers of heat insulation material layers and/or at least two layers of reinforcing nets, the heat insulation material layers and the reinforcing nets are alternately compounded.
13. The method of claim 12, wherein the pre-treating comprises the steps of: and uniformly mixing the expanded polystyrene particles with other substances in the raw materials of the heat-insulating material layer.
14. The method of claim 13, wherein the foaming temperature is 90-110 ℃;
and/or the foaming time is 10-15 s;
and/or the foaming pressure is 0.2-0.3 MPa;
and/or the mixing is achieved by stirring.
15. The method of claim 14, wherein the foaming temperature is 100 ℃;
and/or the rotating speed of the stirring is 100-300 rpm.
16. The production method according to claim 12, wherein the compression is performed in a thickness direction of the raw material composition;
and/or, the compressed amount of compression is 45-55%;
and/or the heating temperature is 60-200 ℃;
and/or, the heating is carried out to enable the pressure inside the raw material composition to reach 0.15MPa-0.25 MPa;
and/or, the heating is for a time of at least 2 minutes.
17. The method of claim 16, wherein the heating temperature is 140-170 ℃;
and/or, the heating brings the pressure inside the raw material composition to 0.2 MPa;
and/or, the heating time is at least 8-10 minutes.
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| CN101863642B (en) * | 2010-05-18 | 2012-08-22 | 江苏华伟佳建材科技有限公司 | Composite disassembly-free heat-insulation permanent template and production method thereof |
| CN102080422B (en) * | 2010-12-02 | 2015-03-11 | 付振顶 | Heat preservation and fire prevention integrated template and preparation and installation method thereof |
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