CN203066284U - Autoclaved sand aerated heat-insulation plate outer wall outer heat-insulation structure - Google Patents

Autoclaved sand aerated heat-insulation plate outer wall outer heat-insulation structure Download PDF

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CN203066284U
CN203066284U CN 201220742416 CN201220742416U CN203066284U CN 203066284 U CN203066284 U CN 203066284U CN 201220742416 CN201220742416 CN 201220742416 CN 201220742416 U CN201220742416 U CN 201220742416U CN 203066284 U CN203066284 U CN 203066284U
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sand aerated
heat
insulation
wall
insulation plate
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李军
李军华
马彪
李胜英
赵晓辉
武启明
丁焱
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TIANJIN RESIDENTIAL SCIENCE INSTITUTE Co Ltd
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TIANJIN RESIDENTIAL SCIENCE INSTITUTE Co Ltd
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Abstract

The utility model relates to an autoclaved sand aerated heat-insulation plate outer wall outer heat-insulation structure. The autoclaved sand aerated heat-insulation plate outer wall outer heat-insulation structure comprises a concrete base layer wall body, and is characterized in that a plurality of layers of parallel tied steel bars are fixed in the horizontal direction of the concrete base layer wall body at intervals, a through concave groove is transversely formed in the middle of the lateral wall of the upper end of each autoclaved sand aerated heat-insulation plate, the tied steel bars are embedded in the autoclaved sand aerated heat-insulation plates through the concave grooves in the lateral walls, the lateral wall of the lower end of each autoclaved sand aerated heat-insulation plate is fixedly connected with a connector. The construction method includes concrete base layer treatment, concrete adhesion agent construction, adhesion of the autoclaved sand aerated heat-insulation plates, installation of the connectors and the tied steel bars, construction of adhesion agents for the autoclaved sand aerated heat-insulation plates, and construction of a plaster mortar layer and a veneer layer. The autoclaved sand aerated heat-insulation plate outer wall outer heat-insulation structure has the advantages that the autoclaved sand aerated heat-insulation plates are applied to the outer wall outer heat-insulation project of high-rise buildings, not only reduces the self-weight of the buildings, but also is favorable for the anti-shock performance and durability of the buildings, is ideal heat-insulation materials for the high-rise buildings, and has broad application prospects.

Description

Steam and press sand aerated insulation board exterior wall outer thermal insulation structure
Technical field
The utility model belongs to the skin heat preservation technology, relates in particular to a kind of steaming and presses sand aerated insulation board exterior wall outer thermal insulation structure and job practices thereof.
Background technology
Along with the continuous development of China's dwelling construction, building energy consumption becomes the rich and influential family of AND ENERGY RESOURCES CONSUMPTION IN CHINA gradually.According to statistics, building energy consumption has accounted for about 1/3 of national total energy consumption, and the 30%-50% of building energy consumption loses by peripheral structure.At present, domestic and international heat-insulation material kind scarcity, the market demand is huge, and particularly supply falls short of demand especially for the high-performance heat insulating material.And along with the continuous development of science and technology and the continuous enhancing of environmental consciousness, high in technological content, good product performance, production is stable, eco-friendly heat insulating material becomes domestic and international research gradually emphasis and focus.Particularly build inflammable, flammable heat insulating material in recent years and become the new disaster hidden-trouble of a class, the fire of Yin Faing is the multiple impetus thus, therefore country has higher requirement to building thermal insulation material, not only require it to have good heat-insulating property, and require to have fireproof performance and endurance quality preferably.Building energy conservation receives much concern at present, and new building is wanted the strict design standard for energy efficiency of buildings of carrying out.Materials for wall is the main body of constructional materials, accounts for 70% of building consumptive material.And traditional materials for wall and traditional mode of production mode can not adapt to the needs of construction " housing and public buildings that use less energy and land " and housing industrialization development.Traditional material and the mode of production are with low content of technology, not only are difficult to improve quality and the performance of dwelling house, and expend a large amount of energy and resource.
Steam-pressing aero-concrete is a kind of porous light concrete, it is to be main raw material(s) by siliceous material and calcareous material, add an amount of foaming agent, through levigate, batching, stirring, cast, foaming, quietly stop, a kind of New Building Materials that cutting, steam press maintenance form.The main material of the outer heat insulating work employing of external wall of high-rise building at present is molding polyphenyl plate (EPS), extruded polystyrene board organic insulation materials such as (XPS), and the shortcoming of this type of material maximum is poor durability and is easy to generate disaster hidden-trouble.The novel energy-conserving materials for wall steams presses the sand aerating to belong to the inorganic silicic acid salt product, be A level incombustible material, have insulation, heat insulation, fire prevention, sound insulation, durable, light weight, construction is convenient and characteristics such as environmental protection, as the External Thermal Insulation Technology for External system, can satisfy fully national 65% energy-conservation requirement, and with build the same life-span.
Therefore, how make up to steam by technological means and press sand aerating external thermal insulation system, by the in-depth detail structure, enhance product performance to improve safe, energy-conservation, fire prevention, sound insulation and the endurance quality of this system, become an important research project.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, provides a kind of steaming to press sand aerated insulation board exterior wall outer thermal insulation structure and job practices thereof, can solve heat-insulating property and the security performance of energy saving building external wall heat insulation system.
The utility model for achieving the above object, by the following technical solutions: sand aerated insulation board exterior wall outer thermal insulation structure is pressed in a kind of steaming, comprise the concrete base layer body of wall, it is characterized in that: described concrete base layer body of wall is provided with the concrete interface agent layer from inside to outside successively, steam and press sand aerated insulation plate and sand aerating interfacial agents layer, described concrete base layer body of wall horizontal direction parallel fixed interval has some layers of steel tie, described steaming presses sidewall middle part, sand aerated insulation plate upper end laterally to be provided with the groove of perforation, described steaming presses sand aerated insulation plate to bury steel tie underground by the groove of its sidewall, make to steam and press sand aerated insulation plate to fixedly connected with the concrete base layer body of wall, described steaming is pressed sand aerated insulation plate lower end sidewall to be provided with and can be held and the fixing connector of pressing sand aerated insulation plate that steams.
Described steel tie vertical direction is interval with fixedly head of some reinforcing bars, and described steel tie is affixed with the concrete base layer body of wall by the fixing head of reinforcing bar.
Described steaming is pressed between sand aerated insulation plate and the concrete interface agent layer and is provided with adhesive layer, and described steaming presses sand aerated insulation plate to be linked to be integral body by adhesive layer and concrete base layer body of wall.
Described connector is that the right angle is L shaped, is respectively equipped with via hole at connector two right angle sidewalls.
Described steaming presses sand aerated insulation plate unit weight at 300-325kg/m 3Between, intensity reaches more than the 1.8MPa, and coefficient of thermal conductivity is not more than 0.08W/ (mK).
Described sand aerating interfacial agents layer external surface is provided with polymers anti-cracking mortar layer, alkaline-resisting grid layer of cloth and finish coat successively.
Beneficial effect: steaming the pressure sand aerated concrete is a kind of porous structure material, and unit weight is generally at 200-525kg/m 3, use it as filled wall material or external-wall heat-insulation material, can reduce the building deadweight, be conducive to shock resistance and the durability of building again, be the desirable materials for wall of highrise building and large spatial structure building.Produce to steam and press sand and gas product can realize high mechanization, automation again, the efficiency height, energy consumes low, is a kind of energy-efficient building material product.It is not only in process of production than other constructional materials energy conservation, and on Application in Building, because distinctive thermal and insulating performance own, the building energy conservation effect is remarkable, can save a large amount of energy of heating.
Steaming pressure sand and gas product belongs to the A level and does not fire heat insulating material, be applied in the exterior-wall heat insulation engineering if can substitute traditional flammable heat insulating material, and accomplish and steam that to press the sand aerating to fill self heat insulation wall integrated, can not only reduce the generation of disaster hidden-trouble, and can accomplish outer heat insulating work and same life-span of building, solved a puzzlement external wall outer insulation engineering technical barrier for many years.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of connector;
Fig. 3 is the longitudinal sectional drawing of steel tie;
Fig. 4 is the transverse cross-sectional view of steel tie;
Fig. 5 steams the state arrangement figure that mats formation that presses sand aerated insulation plate.
Among the figure: 1, concrete base layer body of wall layer, 2, the concrete interface agent layer, 3, adhesive layer, 4, steam pressure sand aerated insulation plate, 4-1, groove, 5, sand aerating interfacial agents layer, 6, the polymers anti-cracking mortar layer, 7, alkaline-resisting grid layer of cloth, 8, finish coat, 9, connector, 10, steel tie, 10-1, reinforcing bar be head fixedly, and 11, via hole.
The specific embodiment
Describe the specific embodiment of the present utility model in detail below in conjunction with preferred embodiment.
Referring to Fig. 1, the utility model provides a kind of steaming to press sand aerated insulation board exterior wall outer thermal insulation structure, comprise the concrete base layer body of wall, described concrete base layer body of wall 1 is provided with concrete interface agent layer 2 from inside to outside successively, steams and press sand aerated insulation plate 4 and sand aerating interfacial agents layer 5, polymers anti-cracking mortar layer 6, alkaline-resisting grid layer of cloth 7 and finish coat 8.Described concrete base layer body of wall horizontal direction parallel fixed interval has some layers of steel tie 10, described steaming presses sidewall middle part, sand aerated insulation plate upper end laterally to be provided with the groove 4-1 of perforation, described steaming presses sand aerated insulation plate to bury steel tie underground by the groove of its sidewall, make to steam and press sand aerated insulation plate to fixedly connected with the concrete base layer body of wall, described steaming is pressed sand aerated insulation plate lower end sidewall to be provided with and can be held and the fixing connector 9 of pressing sand aerated insulation plate that steams.Described steel tie vertical direction is interval with the fixing 10-1 of some reinforcing bars, and described steel tie is affixed with the concrete base layer body of wall by the fixing head of reinforcing bar.
In the preferred version, described steaming is pressed between sand aerated insulation plate and the concrete interface agent layer and is provided with adhesive layer, and described steaming presses sand aerated insulation plate to be linked to be integral body by adhesive layer and concrete base layer body of wall.Steam simultaneously and press sand aerated insulation plate to reinforce by the steel tie that is fixed on the concrete base layer body of wall again, will steam with connector again and press sand aerated insulation plate below to hold.
Described steaming presses sand aerated insulation plate unit weight at 300-325kg/m 3Between, intensity reaches more than the 1.8MPa, and coefficient of thermal conductivity is not more than 0.08W/ (mK).
In the preferred version, described steaming presses sand aerated insulation flaggy 4 to be connected with concrete base layer body of wall layer by connector 9 and steel tie 10.Described connector is that the right angle is L shaped, be respectively equipped with via hole 11 at connector two right angle sidewalls, L type connector one side is fixed by expand tube and concrete base layer body of wall, and its another side utilizes two via holes to press steaming to press sand aerated insulation flaggy to fix itself and steaming with steel nail.
The utility model mainly adopts the sand aerated insulation board exterior wall outer thermal insulation system of pressing of steaming of pressing of steaming, press sand aerated insulation plate to form a whole by bonding and being connected with concrete wall of connector and steel tie of bonding adhesive by steaming to press to steam, resist the variation of weather and the destruction of active force jointly.The brushing special interface agent respectively on concrete surface and warming plate surface to improve its adhesive property, is guaranteed durability and the safety of system.Simultaneously, for the security performance that proves this system satisfies the regulation of relevant national standard, carried out series of experimental research, comprised that the test of weatherability and Wind-Pressure Resistance, antidetonation bench teat are tested, researchs such as low cycle repetitive load test and ANSYS FEM (finite element) calculation;
Atmospheric exposure test, be by the simulation exterior wall heat-preserving system stand to suddenly rain cats and dogs after the summer high temperature Exposure to Sunlight and winter diurnal temperature replace the effect repeatedly of these two kinds of extreme climates, test the ageing resistance of system, it is the test of large-area external heat insulating wall being carried out accelerated weathering aging, atmospheric exposure test (80 circulations of high temperature/trickle cycle and through status adjustment after 2 days, 5 circulations of heating/freeze cycle) after, through circular test, float coat does not have hollowing or breakoff phenomenon such as come off, the body of wall state is complete good, and the window angle does not have infiltration.Test is carried out the impact test of float coat and insulation layer pull-out test and system by status adjustment 7d, and tensile bond strength is 0.22MPa, and destroying the position is insulation layer inside, and system reaches the 10J level 1 meter following impact strength.
The Wind-Pressure Resistance test, be by the negative blast effect that stands to circulate of simulation exterior wall heat-preserving system, the breakoff phenomenon that produces, what test is the ability of the negative blast of system's opposing, test is carried out from low to high step by step with the differential of 1kPa, destroy until sample, test is that the thick B03 level steaming of 100mm presses steaming to press sand aerated insulation plate with warming plate.The Wind-Pressure Resistance result of the test all meets the relevant criterion requirement, and this system does not have destruction after 7000Pa blast cycle detection.
The antidetonation bench teat is tested, be according to People's Republic of China's building trade standard test glue powder polyphenyl granule exterior wall outer heat preservation system anti-seismic performance test sample selection mode regulation, sample should be made of basic unit's body of wall and T type exterior wall heat-preserving system, the sample area is at least 1.0m * 1.0m, quantity should be no less than 3, and test is that the thick B03 level of 100mm is steamed pressure steaming pressure sand aerated insulation plate with warming plate.According to steaming the structural form of pressing sand aerating plate thin plastering exterior wall heat-insulation system, construct the parts of test 1.0m * 1.0m at the concrete base layer body of wall.Described antidetonation bench teat is tested the result and is shown, the actual loaded acceleration amplitude has reached 1.0g, surpasses the acceleration index of 8 degree rarely occurred earthquake earthquake intensitys; By examining, do not find to reach external surface generation cracking between insulation layer and the concrete wall or come off after every grade of vibration test; So can judge B03 level and following rank steams the pressure steaming and presses the anti-seismic performance of sand aerated insulation plate exterior wall heat-preserving system qualified.
The low cycle repetitive load test, its test specimen is divided into two kinds of section forms, and a kind of is L type cross section, basic size is: height * wide * thick=2300mm * 1300mm * 150mm(L type edge of a wing length is 300mm); A kind of is T type cross section, and basic size is: height * wide * thick=2300mm * 1300mm * 150mm(T type edge of a wing length is 450mm).Design six test specimens altogether based on these two kinds of cross sectional shapes, test is that the thick B03 level of 100mm is steamed pressure steaming pressure sand aerated insulation plate with warming plate.Described low cycle repetitive load result of the test shows, when the relative displacement of concrete wall top reaches the elasticity relative storey displacement limit value (H/1000) that " seismic design provision in building code " (GB50011) stipulate, a small amount of horizontal fracture appears in the concrete wall bottom, and the outer mortar of warming plate a small amount of crack also occurs in the horizontal mortar joint place.When the relative displacement of concrete wall top reached elastoplasticity relative storey displacement limit value (H/120), concrete wall and warming plate all occurred than multiple cracking and crack diagonal expansion, and the cracking situation of warming plate will be lighter than concrete wall.When concrete wall reached destruction (bearing capacity drop to peak value 85%), body of wall destroyed or distortion has than large fracture than the large part warming plate, and alkali resistant glass fibre open weave cloth is broken and exposed phenomenon, but systematic entirety is better, does not come off.In the concrete wall deformation process, alkali resistant glass fibre open weave cloth and outer mortar can delay the development in warming plate crack, and just because of the effect of adhesive mortar, alkali resistant glass fibre open weave cloth and outer mortar, warming plate crack situation will be lighter than concrete wall.The big position of malformation under the geological process as body of wall end, bight, coupling beam and wall between windows etc., also is the exterior wall heat-preserving system position of cracking easily.At the body of wall failure stage, the alkali resistant glass fibre open weave cloth and the connector that arrange in the system play important effect, even at the position that moderate finite deformation takes place, warming plate is not seen yet and come off.When the relative displacement of body of wall top reached the elasticity relative storey displacement limit value (H/1000) of " seismic design provision in building code " (GB 50011) regulations, connector and reinforcement stress were all less and do not play a role substantially; When reaching elastoplasticity relative storey displacement limit value (H/120), connector and reinforcement stress are increased by a small margin and are brought into play partial action; When reaching destruction (bearing capacity drop to peak value 85%), connector and reinforcement stress increase obviously, but still less and not surrender of stress, and connector and lacing wire can significantly limit and delay warming plate and body of wall is peeled off, and prevent that warming plate from coming off when body of wall destroys.
Described ANSYS FEM (finite element) calculation, its design condition comprises: the finite element simulation at the test test specimen calculates (comprising just pushing away and counter drawing corresponding to elastic deformation stage and elastic-plastic deformation stage); At nine shear wall thermal insulation plates of typical case in certain residential building, according to the actual configuration way carry out finite element simulation calculate (comprise corresponding to elastic deformation stage and elastic-plastic deformation stage just push away and counter draw or the plane in push away and the plane extrapolation); Finite element simulation at three beam warming plates of actual engineering typical case calculates; Provide the thinking of optimization and choose individual layer body of wall in certain actual engineering at existing connector shape, carry out the earthquake of corresponding Efficiency in Buildings in Tianjin Area earthquake intensity and calculate.Described ANSYS result of finite element shows, calculation assumption meets how much of practical problem, material behavior and fringe conditions substantially, and analog result is coincide better with experimental phenomena, and is particularly relatively consistent at the test fundamemtal phenomena.Connector and lacing wire intensity can satisfy the quake-resistant safety requirement, and calculating shows, in the body of wall elastic-plastic deformation stage, most of connectors and lacing wire do not reach yield situation.At body of wall elastic-plastic deformation and failure stage, connector and lacing wire play a role, but overstocked the setting causes warming plate to occur the stress concentration phenomenon in malformation than large part easily.Should be optimized its space position, quantity etc.Element type commonly used and the size in multilayer and the high-rise concrete building structures contained in numerical analysis, and heat-insulation system all shows well.Therefore, this heat-insulation system is applicable to public and civilian construction structures such as multilayer and high-rise concrete shear force wall, shear wall with short piers, framework-shear walls.Finite element analysis shows, when the thickness of warming plate changes (100mm-150mm), concrete wall, warming plate and adhesive mortar stress and mortar slippage otherness are less, and connector and reinforcement stress differ greatly, but all not surrenders, heat-insulation system is safe on the whole.Under the rarely occurred earthquake input condition of " seismic design provision in building code " (GB 50011) regulation, this heat-insulation system is safe on the whole, and the slippage between warming plate and the body of wall is very little.
Table 1 steams the performance requirement of pressing sand aerating outer wall heat preservation system
Table 2 steams presses sand aerated insulation plate gauge lattice and apparent size deviation
Figure BDA00002679656900072
Table 3B03 level is steamed the performance indications of pressing sand aerated insulation plate
Figure BDA00002679656900073
Figure BDA00002679656900081
The performance indications of table 4 special-purpose adhesive (warming plate is used)
Figure BDA00002679656900082
The performance indications of table 5 concrete special interface inorganic agent (I type)
The performance indications of table 6 sand aerating special interface inorganic agent (II type)
Figure BDA00002679656900084
Figure BDA00002679656900091
The performance indications of table 7 finishing mucilage
Figure BDA00002679656900092
The performance indications of table 8 alkali-resistant glass fibre screen cloth
Figure BDA00002679656900093
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment does.

Claims (6)

1. one kind is steamed pressure sand aerated insulation board exterior wall outer thermal insulation structure, comprise the concrete base layer body of wall, it is characterized in that: described concrete base layer body of wall is provided with the concrete interface agent layer from inside to outside successively, steam and press sand aerated insulation plate and sand aerating interfacial agents layer, described concrete base layer body of wall horizontal direction parallel fixed interval has some layers of steel tie, described steaming presses sidewall middle part, sand aerated insulation plate upper end laterally to be provided with the groove of perforation, described steaming presses sand aerated insulation plate to bury steel tie underground by the groove of its sidewall, make to steam and press sand aerated insulation plate to fixedly connected with the concrete base layer body of wall, described steaming is pressed sand aerated insulation plate lower end sidewall to be provided with and can be held and the fixing connector of pressing sand aerated insulation plate that steams.
2. steaming according to claim 1 is pressed to steam and is pressed sand aerated insulation board exterior wall outer thermal insulation structure, and it is characterized in that: described steel tie vertical direction is interval with fixedly head of some reinforcing bars, and described steel tie is affixed with the concrete base layer body of wall by the fixing head of reinforcing bar.
3. steaming according to claim 1 and 2 is pressed to steam and is pressed sand aerated insulation board exterior wall outer thermal insulation structure, it is characterized in that: described steaming is pressed between sand aerated insulation plate and the concrete interface agent layer and is provided with adhesive layer, and described steaming presses sand aerated insulation plate to be linked to be integral body by adhesive layer and concrete base layer body of wall.
4. steaming according to claim 3 is pressed to steam and is pressed sand aerated insulation board exterior wall outer thermal insulation structure, and it is characterized in that: described connector is that the right angle is L shaped, is respectively equipped with via hole at connector two right angle sidewalls.
5. steaming according to claim 4 is pressed to steam and is pressed sand aerated insulation board exterior wall outer thermal insulation structure, and it is characterized in that: described steaming presses sand aerated insulation plate unit weight at 300-325kg/m 3Between, intensity reaches more than the 1.8MPa, and coefficient of thermal conductivity is not more than 0.08W/ (mK).
6. steaming according to claim 5 is pressed to steam and is pressed sand aerated insulation board exterior wall outer thermal insulation structure, and it is characterized in that: described sand aerating interfacial agents layer external surface is provided with polymers anti-cracking mortar layer, alkaline-resisting grid layer of cloth and finish coat successively.
CN 201220742416 2012-12-28 2012-12-28 Autoclaved sand aerated heat-insulation plate outer wall outer heat-insulation structure Expired - Lifetime CN203066284U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102995764A (en) * 2012-12-28 2013-03-27 天津住宅科学研究院有限公司 External wall insulation structure of autoclaved sand aerated insulation board and construction method thereof
CN103604002A (en) * 2013-11-29 2014-02-26 天津住宅集团建设工程总承包有限公司 Through-wall pipeline construction structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102995764A (en) * 2012-12-28 2013-03-27 天津住宅科学研究院有限公司 External wall insulation structure of autoclaved sand aerated insulation board and construction method thereof
CN103604002A (en) * 2013-11-29 2014-02-26 天津住宅集团建设工程总承包有限公司 Through-wall pipeline construction structure

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