CN103741860A - Self-thermal insulation concrete composite building block with inner straw steel mesh mold core and preparation method of self-thermal insulation concrete composite building block - Google Patents
Self-thermal insulation concrete composite building block with inner straw steel mesh mold core and preparation method of self-thermal insulation concrete composite building block Download PDFInfo
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- CN103741860A CN103741860A CN201310713638.5A CN201310713638A CN103741860A CN 103741860 A CN103741860 A CN 103741860A CN 201310713638 A CN201310713638 A CN 201310713638A CN 103741860 A CN103741860 A CN 103741860A
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- 238000002360 preparation method Methods 0.000 title claims description 6
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Abstract
The invention relates to a self-thermal insulation concrete composite building block with an inner straw steel mesh mold core. An thermal insulation layer is used as an inner core (3) of the building block, a concrete layer (1) is used as an outer layer of the building block, and a steel mesh (2) is arranged in the middle of the building block; a waterproof coating (4) is arranged on the surface of the building block which is a box-type cuboid; the inner core (3) is a straw brick formed by compressing straws which are rice straws or wheat straws; the steel mesh is a steel plate mesh or spot welding mesh or punching hole mesh; and the concrete layer (1) is formed in a casting way. The self-thermal insulation concrete composite building block with the inner straw steel mesh mold core is prepared through the following steps: (a) cutting off the straws and pressing for forming or adding a flame retardant, a preservative, a waterproof agent and a binding material, sufficiently stirring, and then, extruding to form the straw brick; (b) cutting off the steel mesh, forming and welding to prepare an inner steel mesh mold; (c) filling the straw brick into the inner steel mesh mold; (d) placing the inner straw steel mesh mold into a steel mold, adding concrete around the inner steel mesh mold, starting a vibrator, scraping a plane layer and then demolding; and (e) transferring the straw brick to a curing field for naturally curing, and delivering out of the factory after the finished products pass the inspection.
Description
Technical field
The present invention relates to a kind of stalk steel mesh inner mould core self-insulating concrete composite block and preparation method thereof, be a kind of high-performance, green, environmental protection, energy-conservation novel wall material, be applicable to exterior wall and the internal partition wall of newly-built, renovating and enlarging industry and civilian construction.
Background technology
Along with expanding economy, global resources reduce day by day, and the energy is more and more nervous.The current energy consumption of China has occupied second place of the world, building energy consumption proportion in AND ENERGY RESOURCES CONSUMPTION IN CHINA total amount has reached 27%(and has been about 3.5 hundred million tons of mark coals), unit building area energy consumption is that developed country is more than 3 times, it is predicted that the year two thousand twenty China building energy consumption will reach 10.9 hundred million tons of mark coals, make City Air Pollution Index reach the 2-5 times of highest standard that the World Health Organization announces simultaneously.The whole nation up to now cities and towns existing building approaches 200 Yi ㎡, totally builds up energy saving building area and only has 10.5 Yi ㎡, only accounts for 5% left and right.So greatly develop energy-efficient house, can not only energy conservation and protection of the environment, be also the important means that realizes national energy-saving and reduce discharging general objective, can also bring many practical benefits to resident family.Along with the raising of people's living standard, requirement for dwelling house comfortable degree is also more and more higher, common walling product is mainly take flyash, slag, building waste etc. as material, these materials contain more radioimpurity radioactive impurity, unfavorable to health, because the heat-shrinkable of these materials is large, thermal conductivity is strong simultaneously, and the comfortableness that stays in the inside is poor.From existing walling, all undesirable in the effect of heat preservation energy-saving, the thermal transmittance of the materials such as cement, slag, building waste is large, as needing after materials for wall, be incubated, but no matter do interior insulation or insulation outward, all have many problems, be difficult to reach corresponding insulation requirement.The self-heat conserving of body of wall is a research topic that just started in recent years attention.Before our country, be to adopt two kinds of modes of Outer Wall insulation always, but these two kinds of modes have excellent, shortcoming, we elaborate below: exterior wall internal insulation is in most cases that the heat insulating materials such as benzene plate, thermal insulation mortar are used in the inner side of exterior wall, thereby makes building reach the construction method of heat preservation energy-saving object.The advantages such as this construction method has easy construction, less demanding to external wall verticality, and construction speed is fast, but also exist some defects simultaneously.1. be difficult to avoid heat (cold) bridge, heat-insulating property is decreased, at the exterior wall inner surface at heat bridge position, easily produce even mildew phenomena of dewfall, humidity.2. insulation layer is made in indoorly, not only takies the interior space, and usable floor area reduces, and user's secondary decoration or set up hanging facility and all can damage insulation layer, is difficult for repairing.3. in, insulation makes exterior wall both sides under different environment temperatures, the speed of exterior wall distortion is higher than interior heat insulation system, under this deformational stress repeated action, be first that exterior wall subjects to destroy, also make insulation layer and body of wall occur that crack becomes universal phenomenon simultaneously.Therefore, first interior insulation is that heat insulation effect is undesirable, is secondly that insulation construction easily destroys, and resident family is produced to inconvenience, so, use at present to such an extent that be not very extensive.In southern area to energy-conservation require slightly lower, use relatively many.
External wall outer insulation is to apply at present commonplace a kind of building insulation method.Compared with exterior wall internal insulation, external wall outer insulation both can have been eliminated the heat bridge in body of wall completely, reach satisfied insulation effect, do not reduce indoor floor space, eliminated condensation simultaneously, improved residence comfort, can in new building and transformation building, can use in addition, applied widely, but the difficulty of construction of external wall outer insulation is larger than exterior wall internal insulation.
In China's building energy conservation practice process for many years, on the basis of study and Importing Foreign Advanced Technology, external thermal insulation system and the construction technology of multiple material, different ways have at present been formed, as sandwich thermal insulated system, smear thermal insulation mortar way, plug-in single-side steel wire mesh polyphenyl plate system, external pasting polyphenyl plate thin plastering system etc. outward.
Mainly there is at present the problem of several aspects in external wall outer insulation aspect: the one, and quality Control.In strict accordance with standard operation, outer insulation at least will be passed through the multiple working procedures such as adhesive mortar, insulation layer, the fixing gauze wire cloth of laying or fibrous mesh cloth, crack resist at mortar, outer finishing coat, and the construction technology of each procedure and quality requirement all will reach acceptance criteria.A lot of building developers are in order to reduce costs, from the service property (quality) of material, all make a discount above working procedure, cause the quality of outer insulation to have a lot of potential safety hazards, and a lot of local external thermal insulation dehiscence of exterior wall or the warming plate phenomenons that solid large area peels off that are pasted not strongly that all occurred in the whole nation.
Due to the deficiency existing on current heat preservation technology and material, also only have 15-20 application life, compared with the building life-span of 50 years, certainly will to carry out part or all reprocess therebetween, cause secondary insulation, to resident, bring inconvenience, increased again cost of investment.
Summary of the invention
For above defect, the invention provides a kind of stalk steel mesh inner mould core self-insulating concrete composite block, it can improve the performances such as the insulation of existing partition material, high-strength, lightweight, fire prevention, sound insulation, developing green, ecology, environmental protection, energy-conservation partition material greatly; Significantly simplify the construction sequence of existing partition wall material, greatly reduced site operation personnel's labour intensity, reduced by 3/4ths duration, reduced the cost of partition wall 50%; Efficiently utilize stalk resource, protection of the environment.
For reaching above object, the present invention has adopted following technical scheme: a kind of stalk steel mesh inner mould core self-insulating concrete composite block, and the inner core of building block is insulation layer, and skin is layer of concrete, and centre is steel mesh.
Building block of the present invention is box cuboid, and the surface of building block is waterproof coating; Described inner core is the stalk brick that stalk is compressed into, and described stalk brick is straw or straw.
Described stalk brick is straw or straw; Described steel mesh is expanded metal lath or spot welding net or punching net; Described layer of concrete forms by cast.
A kind of stalk steel mesh of the present invention inner mould core self-insulating concrete composite block and preparation method thereof, has following steps:
A) by straw cutting, extrusion forming or add fire retardant, anticorrisive agent, waterproof agent and cementitious material fully to stir after be squeezed into cuboid stalk brick;
B) steel mesh cut-out, moulding, welding production are become to cuboid steel mesh internal mold, stay an opening stand-by;
C) stalk brick is filled in to the one side that in steel mesh inner membrance, also welded closure stays, is made into the stalk steel mesh inner mould core of cuboid;
D) in the bottom of punching block, first spread the concrete that one deck 15-20mm is thick, steel mesh inner mould core is placed in to punching block, and stalk steel mesh inner mould core is placed in the middle of punching block, and at steel mesh inner mould core, all around add concrete, start electromagnetic shaker, vibrations 20-30s, on steel mesh inner mould core, add concrete, again start electromagnetic shaker, vibrations 20-40s, strike off surface layer, the demoulding after initial set such as formation such as concrete such as grade in static 15-20 minute; E) move into curing field natural curing, maintenance 28 days, dispatches from the factory after the assay was approved.
Adopt after above technical scheme, the present invention has following features:
One, adopt a kind of right angle cuboid, slotting heat insulating material is filled out in centre, the complete totally enclosed body structure of its six faces, this structure: the resistance to compression and the rupture strength that 1, have strengthened building block; 2, strengthen the sealing of heat insulating material, reduced the cross-ventilation in loss and the insulation layer of heat insulating material in transportation, work progress, thereby improved the integral heat insulation performance of partition wall.And common self heat-preserving concrete building block to be four sides seal two openings, up-small and down-big tapering hexahedron.
Two, six cuboid steel mesh internal molds in concrete, have been configured.This design: 1, strengthened the overall performance of building block, high-strength, anti-folding, non-friable.And so it is frangible not configure any steel framework material in common self heat-preserving concrete building block.
Three, concrete is to adopt the prefabricated method once-cast of punching block to form.This technique: 1, strengthened the intensity of building block, the corresponding weight that alleviates building block, building block during equality strength rank, than the weight of common self heat-preserving concrete building block brick light 35%; 2, the prefabricated size that guarantees building block of standard punching block, tolerance is in ± 1mm; When 3, prefabricated, cast vibrations make the plain and high strength in the surface of building block.So wall puzzles rear two faces and does not need whitewash mortar again.And common self heat-preserving concrete building block is to adopt pressurization compacting to form, because its density is low, guaranteed strength thick by its wall of increase, rib, thus Heavy Weight, because its rough surface wall puzzles rear two need whitewash mortar again, therefore long in time limit, cost is high.
Four, use in a large number agricultural wastes---straw, using stalk as insulation, fill out slotting material.Stalk is best natural heat insulating material as everyone knows.Its shared total material proportion is greater than 60%, turn waste into wealth, for stablizing Agro-ecology balance, alleviate resource constraint, alleviate environment stress all tool be of great significance.And common self heat-preserving concrete building block is generally filled benzene plate, foamed plastics or polyphenylene granule heat-insulating slurry, construction is complicated, operation is many, product are blamed control, long in time limit, cost is high, the flammable and rear toxic gas that produces of burning.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
Shown in Fig. 1, a kind of stalk steel mesh of the present invention inner mould core self-insulating concrete composite block, the inner core 3 of building block is insulation layer, and skin is layer of concrete 1, and centre is steel mesh 2.
Building block of the present invention is box cuboid, and the surface of building block is waterproof coating 4; The stalk brick that described inner core 3 is compressed into for stalk, inner core 3 also can be foamed plastics (XPS, EPS) or polyphenyl particle heat-insulating mortar or foam concrete, and described stalk brick is straw or straw; Described steel mesh is expanded metal lath or spot welding net or punching net; Described layer of concrete 1 forms by cast.
A kind of stalk steel mesh of the present invention inner mould core self-insulating concrete composite block and preparation method thereof, has following steps:
A) by straw cutting, extrusion forming or add fire retardant, anticorrisive agent, waterproof agent and cementitious material fully to stir after be squeezed into cuboid stalk brick;
B) steel mesh cut-out, moulding, welding production are become to cuboid steel mesh internal mold, stay an opening stand-by;
C) stalk brick is filled in to the one side that in steel mesh inner membrance, also welded closure stays, is made into the stalk steel mesh inner mould core of cuboid;
D) in the bottom of punching block, first spread the concrete that one deck 15-20mm is thick, steel mesh inner mould core is placed in to punching block, and stalk steel mesh inner mould core is placed in the middle of punching block, and at steel mesh inner mould core, all around add concrete, start electromagnetic shaker, vibrations 20-30s, on steel mesh inner mould core, add concrete, again start electromagnetic shaker, vibrations 20-40s, strike off surface layer, the demoulding after initial set such as formation such as concrete such as grade in static 15-20 minute; E) move into curing field natural curing, maintenance 28 days, dispatches from the factory after the assay was approved.
Stalk steel mesh inner mould core self-insulating concrete composite block of the present invention is to use pure natural heat insulating material straw and steel mesh concrete to be composited, and is real green, ecology, environmental protection walling.1, a large amount of stalks is fully utilized and itself for stablizing Agro-ecology balance, is significant.2, in its manufacturing process not sintering, pollution-free, without dry sound, without emission.Very favourable to the health of human body, comfort level is good, belongs to environmental-friendly ecological material.
Stalk steel mesh inner mould core self-insulating concrete composite block of the present invention, it utilizes stalk, steel mesh, the concrete manufacture of not calcining, production technology is simple, equipment investment is little, every square metre of unit temperature difference of the product coefficient of heat conduction, below 0.45 watt, is equivalent to 1.5 meters of thick common brick wall heat insulation effects of tradition.Building body is without doing interior external insulation system again, and body of wall does not need whitewash mortar again, and significantly reduces and move in cost, reduces construction link, can be widely used in and severe cold area.
The superior function of a kind of stalk steel mesh of the present invention inner mould core self-insulating concrete composite block:
The superior functions such as stalk steel mesh core rod self-insulating concrete composite block has environmental protection, energy-conservation, insulation, lightweight, high strength, sound insulation, antidetonation, cracking resistance, fire prevention, protection against the tide, anticorrosion, durability, easily cutting, easily construction, the duration is short, cost is low.
?
1, superior function:
2, performance indications:
Claims (6)
1. a stalk steel mesh inner mould core self-insulating concrete composite block, is characterized in that: the inner core (3) of building block is insulation layer, and skin is layer of concrete (1), and centre is steel mesh (2).
2. a kind of stalk steel mesh inner mould core self-insulating concrete composite block according to claim 1, is characterized in that: building block is box cuboid, and the surface of building block is waterproof coating (4).
3. a kind of stalk steel mesh inner mould core self-insulating concrete composite block according to claim 1, is characterized in that: the stalk brick that described inner core (3) is compressed into for stalk, described stalk brick is straw or straw.
4. a kind of stalk steel mesh inner mould core self-insulating concrete composite block according to claim 1, is characterized in that: described steel mesh (2) is expanded metal lath or spot welding net or punching net.
5. a kind of stalk steel mesh inner mould core self-insulating concrete composite block according to claim 1, is characterized in that: described layer of concrete (1) forms by cast.
6. a kind of stalk steel mesh inner mould core self-insulating concrete composite block as claimed in claim 1 and preparation method thereof, is characterized in that having following steps:
A) by straw cutting, extrusion forming or add fire retardant, anticorrisive agent, waterproof agent and cementitious material fully to stir after be squeezed into cuboid stalk brick;
B) steel mesh cut-out, moulding, welding production are become to cuboid steel mesh internal mold, stay an opening stand-by;
C) stalk brick is filled in to the one side that in steel mesh inner membrance, also welded closure stays, is made into the stalk steel mesh inner mould core of cuboid;
D) in the bottom of punching block, first spread the concrete that one deck 15-20mm is thick, steel mesh inner mould core is placed in to punching block, and stalk steel mesh inner mould core is placed in the middle of punching block, and at steel mesh inner mould core, all around add concrete, start electromagnetic shaker, vibrations 20-30s, on steel mesh inner mould core, add concrete, again start electromagnetic shaker, vibrations 20-40s, strike off surface layer, the demoulding after initial set such as formation such as concrete such as grade in static 15-20 minute;
E) move into curing field natural curing, maintenance 28 days, dispatches from the factory after the assay was approved.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310713638.5A CN103741860A (en) | 2013-12-23 | 2013-12-23 | Self-thermal insulation concrete composite building block with inner straw steel mesh mold core and preparation method of self-thermal insulation concrete composite building block |
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| CN201310713638.5A CN103741860A (en) | 2013-12-23 | 2013-12-23 | Self-thermal insulation concrete composite building block with inner straw steel mesh mold core and preparation method of self-thermal insulation concrete composite building block |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895238A (en) * | 2015-06-17 | 2015-09-09 | 盐城工学院 | Self-thermal insulation building block for building |
| CN111531675A (en) * | 2020-04-04 | 2020-08-14 | 江苏禾吉新材料科技有限公司 | Heat-insulation straw board for outer wall and preparation method and application thereof |
| CN115095074A (en) * | 2022-06-17 | 2022-09-23 | 哈尔滨理工大学 | Based on ecological straw composite blocks used in green buildings |
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| CN2630359Y (en) * | 2003-07-22 | 2004-08-04 | 王胜林 | Heat-insulating light block |
| CN2698880Y (en) * | 2004-05-28 | 2005-05-11 | 梅志成 | Render-free concrete building block with integrally poured straw core |
| KR20070025406A (en) * | 2005-09-02 | 2007-03-08 | 구경회 | Building Mortar Block |
| CN201704855U (en) * | 2010-04-26 | 2011-01-12 | 闫振甲 | Foam concrete jacketing building block |
| CN202157455U (en) * | 2011-07-07 | 2012-03-07 | 郑小伟 | Light heat-preservation environment-friendly building block |
| CN103132642A (en) * | 2013-03-05 | 2013-06-05 | 哈尔滨工程大学 | Concrete sandwich straw building block |
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2013
- 2013-12-23 CN CN201310713638.5A patent/CN103741860A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2630359Y (en) * | 2003-07-22 | 2004-08-04 | 王胜林 | Heat-insulating light block |
| CN2698880Y (en) * | 2004-05-28 | 2005-05-11 | 梅志成 | Render-free concrete building block with integrally poured straw core |
| KR20070025406A (en) * | 2005-09-02 | 2007-03-08 | 구경회 | Building Mortar Block |
| CN201704855U (en) * | 2010-04-26 | 2011-01-12 | 闫振甲 | Foam concrete jacketing building block |
| CN202157455U (en) * | 2011-07-07 | 2012-03-07 | 郑小伟 | Light heat-preservation environment-friendly building block |
| CN103132642A (en) * | 2013-03-05 | 2013-06-05 | 哈尔滨工程大学 | Concrete sandwich straw building block |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895238A (en) * | 2015-06-17 | 2015-09-09 | 盐城工学院 | Self-thermal insulation building block for building |
| CN111531675A (en) * | 2020-04-04 | 2020-08-14 | 江苏禾吉新材料科技有限公司 | Heat-insulation straw board for outer wall and preparation method and application thereof |
| CN115095074A (en) * | 2022-06-17 | 2022-09-23 | 哈尔滨理工大学 | Based on ecological straw composite blocks used in green buildings |
| CN115095074B (en) * | 2022-06-17 | 2024-11-22 | 哈尔滨理工大学 | Ecological straw composite blocks used in green buildings |
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Application publication date: 20140423 |