CN101787779A - Environment-friendly exterior wall hanging plate doping with construction waste and preparation method thereof - Google Patents
Environment-friendly exterior wall hanging plate doping with construction waste and preparation method thereof Download PDFInfo
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- CN101787779A CN101787779A CN201010115201A CN201010115201A CN101787779A CN 101787779 A CN101787779 A CN 101787779A CN 201010115201 A CN201010115201 A CN 201010115201A CN 201010115201 A CN201010115201 A CN 201010115201A CN 101787779 A CN101787779 A CN 101787779A
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- exterior wall
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Curing Cements, Concrete, And Artificial Stone (AREA)
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Abstract
The invention discloses an environment-friendly exterior wall hanging plate doping with construction waste and a preparation method thereof. The environment-friendly exterior wall hanging plate is prepared by mixing the following components in parts by weight: 25-175 parts of construction waste, 75-100 parts of cement, 0-150 parts of sand, 0-1 part of water reducing agent, 0-1 part of thickening agent, 2-18 parts of cold drawn wire and 19.5-30 parts of water. Proved by experiments, the construction waste added in the exterior wall hanging plate improves the performance indexes of anti-breaking force, and the like of the exterior wall hanging plate, a large quantity of the construction waste can be consumed, and the use level of partial cement and sand is reduced, thereby utilizing the waste, saving the resources and protecting the environment. The invention has great function in the field of construction and has wide market prospect.
Description
Technical field
The present invention relates to building materials field, relate generally to utilization again, be specifically related to a kind of environment-friendly exterior wall hanging plate that is mixed with building waste and preparation method thereof industrial waste.
Background technology
Builing industry is as one of mainstay of the national economy industry, obtained the development of advancing by leaps and bounds in recent years, but the building waste that thereupon produces is also more and more.According to statistics, the total discarded concrete amount (the discarded concrete sum in concrete production process, building construction process and the building demolition process) of China in 2005 will reach more than 12,000 ten thousand tons.Along with the further quickening of China's economic construction paces, the total amount of discarded concrete also will increase.So the discarded concrete of flood tide will cause great environmental problem, economic problems even social concern.The strategy of sustainable development that has seriously deviated from China's economy and environment.
At present, domestic used external wall of building type has multiple, and wherein brick mix structure is most widely used; history is also longer; but because the needs that protection environment and saving are ploughed, country's law-making stipulation progressively eliminates and bans use of loam brick, thereby brick mix structure is about to eliminate.Rate of progress of the constructions such as cast-in-situ concrete shear wall structure, cast-in-situ concrete frame construction are slow, long in time limit, and the industrialization of construction industry level is low.Develop the policy of energy-saving building material and green building material for adapting to the primary study that proposes in China's " building energy conservation and green building ", the inventor endeavours to develop the application of a large amount of admixture building wastes in exterior wall cladding, does not have relevant bibliographical information by retrieval so far.Research Significance of the present invention is: one side building waste wide material sources, and twice laid is mixed in the exterior wall cladding and can be reduced production costs; Made from construction refuse resource utilizes again on the other hand, not only can solve construction industry development and the environmental protection difficult problem brought, and the Recycling of building waste allows building waste turn waste into wealth, and realizes the doulbe-sides' victory of benefit and environmental protection.Thereby with building waste preparation exterior wall cladding technology be a kind of press for to have energy-conservation profit useless and reduce the novel building rubbish exterior wall cladding preparation technique of advantages such as product cost.
Summary of the invention
The invention provides a kind of can be the environment-friendly exterior wall hanging plate of raw material preparation with building waste, is utilizing waste resource, when reducing part cement, river sand consumption, can also work in coordination with other exterior wall cladding batching and play a role, and improves the exterior wall cladding performance.
For reducing the exterior wall cladding production cost, solve the problem of environmental pollution that building waste brought, the present invention takes following technical scheme: a kind of environment-friendly exterior wall hanging plate that is mixed with building waste is the environment-friendly exterior wall hanging plate that adds building waste on the basis that special-purpose exterior wall cladding is produced.
Specifically, the described composition of raw materials that is mixed with the environment-friendly exterior wall hanging plate of building waste comprises following components by weight portion: building waste 25-175 part, cement 75-100 part, sand 0-150 part, water reducing agent 0-1 part, thickener 0-1 part, cold drawn wire 2-18 part, water 19.5-30 part.
Described cement is preferably silicate series cement or sulphate aluminium cement.
Described building waste is preferably the discarded concrete in concrete production process, building construction process and the building demolition process, and particle diameter is preferably below the 5mm, and more than the 0.15mm, size distribution is particle comparatively uniformly.
It is that 2.3-3.0, mud content are natural sand or the manufactured sand of 0-2.0% that described sand is preferably fineness modulus.
Described cold drawn wire is preferably steel wire diameter 2-6mm, theoretical weight 0.024-0.220kg/m, cross-sectional area 3.14-28.26mm
2, the about 190kg/mm of tensile strength
2, the about 150kg/mm of yield strength
2Steel wire.
Second purpose of the present invention provides a kind of preparation method of environment-friendly exterior wall hanging plate.
The preparation method of environment-friendly exterior wall hanging plate provided by the present invention can may further comprise the steps:
1) cold drawn wire is arranged: the moulding orbit two ends have a fixed mount perpendicular to moulding orbit respectively, and several cold drawn wire parallel longitudinals are fixed between two fixed mounts;
2) getting material by following parts by weight proportioning mixes: building waste 25-175 part, and cement 75-100 part, sand 0-150 part, Admixture (wherein water reducing agent 0-1 part, thickener 0-1 part), water 19.5-30 part mixes above-mentioned raw materials;
3) moulding: mixed raw material are inserted in the special molding car, and wet feed is gone up extrusion modling along with the moulding car moves ahead at moulding orbit (having arranged cold drawn wire) and gone out the exterior wall cladding base substrate.
4) maintenance: the maintenance under the situation of trickle not of link plate base substrate was cut into the sheet material of 1.2 meters (or 0.6 meters), immersion, trickle or natural curing after 24 hours.Obtain environment-friendly exterior wall hanging plate.
The invention provides a kind of environment-friendly exterior wall hanging plate that is mixed with building waste.This material is the part river sand that adopts in the discarded building waste instead of dedicated exterior wall cladding, it is evenly mixed by a certain percentage with cement, sand, Admixture, water etc., mold the exterior wall cladding base substrate by dedicated extruded former on the moulding orbit of cold drawn wire fixing, again the environment-friendly exterior wall hanging plate that obtains through cutting, maintenance.Experiment showed, that the building waste that adds in this material not only can improve the performance indications such as intensity of exterior wall cladding, can also consume a large amount of building wastes, reduce part cement, sand consumption, utilized discarded object, saved resource and protected environment.
The specific embodiment
The present invention is mixed with the environment-friendly exterior wall hanging plate of building waste, is the environment-friendly exterior wall hanging plate that is added with building waste on the basis of special-purpose exterior wall cladding production.
The composition of raw materials of this environment-friendly exterior wall hanging plate comprises following components by weight portion: building waste 25-175 part, cement 75-100 part, sand 0-150 part, Admixture (wherein water reducing agent 0-1 part, thickener 0-1 part), cold drawn wire 2-18 part, water 19.5-30 part.Wherein:
Used cement is silicate series cement or sulphate aluminium cement.
Used building waste is preferably the discarded concrete in concrete production process, building construction process and the building demolition process, after the building waste Mechanical Crushing, selecting particle diameter for use is below the 5mm, 0.15mm above particle, and the size distribution of the particle of selecting for use comparatively evenly (be evenly distributed and be meant that large and small particle all will have).
Used sand is that fineness modulus is that 2.3-3.0, mud content are natural sand or the manufactured sand of 0-2.0%.
Used cold drawn wire is preferably steel wire diameter 2-6mm, theoretical weight 0.024-0.220kg/m, cross-sectional area 3.14-28.26mm
2, the about 190kg/mm of tensile strength
2, the about 150kg/mm of yield strength
2Steel wire.
Water reducing agent can be selected " high efficiency water reducing agent " (" high efficiency water reducing agent " is the industry standard name of product) of GB regulation for use in the used Admixture, as UNF, SM; Thickener is optional to be the additive of main component in order to cellulose ether, starch ether etc., as ABW.Admixture all is purchased.
The inventor sums up in research practice: on mechanism; 1) the one, the influence of building waste activity: building waste is that the concrete behind the building demolition forms through the Mechanical Crushing processing; because concrete setting and harden is a process very slowly; even through the time in 20 years; the aquation of its cement does not also finish fully; the activity index that is drawn building waste by test is 66%; prove that also building waste itself has certain activity; when cycling and reutilization; can be beneficial to the further aquation of cement, favourable to the development of intensity.2) influence of building waste interface combination: be mixed with in the cement-based material of building waste, because the hydrophily of building waste is strong, can be very fast moistening by water, the cement mortar that building waste rough surface out-of-flatness meeting absorption is new, promptly be wrapped in cement mortar on the building waste surface, cause that modulus of elasticity differs very little between building waste and the new cement mortar, and the aquation of contact zone is more complete, the interface is in conjunction with being strengthened.3) influence of process: handle through Mechanical Crushing and form because building waste is a concrete behind the building demolition, can improve particle shape and size distribution by abundant fragmentation in shattering process, also the cement-based material strength developing for the building waste preparation provides advantage.Therefore, use building waste not only to be embodied in the twice laid aspect, also have the advantage that promotes exterior wall cladding quality aspect.
Below in conjunction with specific embodiment the present invention is described in further details.Method therefor is conventional method if no special instructions among the embodiment.
Embodiment 1, be mixed with the preparation and the Performance Detection thereof of the environment-friendly exterior wall hanging plate of building waste
Prepare the building waste exterior wall cladding with following method, concrete grammar may further comprise the steps:
1) cold drawn wire is arranged: cold drawn wire (diameter 2mm) 2kg, be fixed between two fixed mounts;
2) weigh and get material: the building waste (75kg of particle diameter 0.15mm～5mm), Portland cement (P.O42.5 model, available from Hebei province Ji Dong Cement Group Co., Ltd) 100kg, river sand (fineness modulus is 2.5) 75kg, water reducing agent (UNF high efficiency water reducing agent, Hebei Jiuqiang Building Material Co., Ltd. produces) 1kg, thickener (ABW thickening powder, China Building Material Scientific Research General Institute produces) 0.5kg, water 26kg is mixed into wet feed with above-mentioned raw materials;
3) moulding: wet feed is inserted in the special molding car, and extrusion modling goes out the exterior wall cladding base substrate on moulding orbit;
4) maintenance: maintenance is 24 hours under the situation of trickle not, is cut into the sheet material of 1.2 meters (or 0.6 meters), the maintenance of back immersion bubble;
Obtain being mixed with the environment-friendly exterior wall hanging plate of building waste.
According to the method for testing performance among " concrete exterior wall link plate " standard Q/CBMA-01-2008 (table 1) environment-friendly exterior wall hanging plate that the present invention is mixed with building waste is detected.Testing result is as shown in table 2, shows that the environment-friendly exterior wall hanging plate that is mixed with building waste with the inventive method preparation not only meets
Standard, and have preferable performance, fracture resistence force reaches 892N, is higher than standard-required.
Stipulate performance indications among table 1 " concrete exterior wall link plate " the standard Q/CBMA-01-2008
Table 2 is pressed the testing result of Q/CBMA-01-2008 standard to embodiment 1 product
Embodiment 2, be mixed with the preparation and the Performance Detection thereof of the environment-friendly exterior wall hanging plate of building waste
Prepare the environment-friendly exterior wall hanging plate that is mixed with building waste with following method, concrete grammar may further comprise the steps:
1) cold drawn wire is arranged: cold drawn wire (diameter 3mm) 4.4kg, be fixed between two fixed mounts;
2) weigh and get material: the building waste (100kg of particle diameter 0.15mm～5mm), sulphate aluminium cement (R-SAC42.5 model, available from Tangshan six or nine cement Co., Ltds) 90kg, manufactured sand (fineness modulus is 3.0) 60kg, water reducing agent (SM high efficiency water reducing agent, the Suzhou City chemical building material Co., Ltd that makes the country prosperous produces) 0.3kg, thickener (ABW thickening powder, China Building Material Scientific Research General Institute produces) 0.4kg, water 30kg mixes above-mentioned raw materials;
3) moulding: wet feed is inserted in the special molding car, and extrusion modling goes out the exterior wall cladding base substrate on moulding orbit;
4) maintenance: maintenance is 24 hours under the situation of trickle not, is cut into the sheet material of 1.2 meters (or 0.6 meters), back showering curing.
Obtain being mixed with the environment-friendly exterior wall hanging plate of building waste.
According to the method for testing performance among " concrete exterior wall link plate " standard Q/CBMA-01-2008 (table 1) environment-friendly exterior wall hanging plate that the present invention is mixed with building waste is detected.Testing result is as shown in table 3, shows that the environment-friendly exterior wall hanging plate that is mixed with building waste with the inventive method preparation meets standard, and has preferable performance, and fracture resistence force reaches 885N, is higher than standard-required.
Table 3 is pressed the testing result of Q/CBMA-01-2008 standard to embodiment 2 products
Embodiment 3, be mixed with the preparation and the Performance Detection thereof of the environment-friendly exterior wall hanging plate of building waste
Prepare the environment-friendly exterior wall hanging plate that is mixed with building waste with following method, concrete grammar may further comprise the steps:
1) cold drawn wire is arranged: cold drawn wire (diameter 6.0mm) 18kg, be fixed between two fixed mounts;
2) weigh and get material: the building waste (150kg of particle diameter 0.15mm～5mm), Portland cement (P.O42.5 model, available from Hebei province Ji Dong Cement Group Co., Ltd) 75kg, river sand (fineness modulus is 2.3) 25kg, thickener (ABW thickening powder, China Building Material Scientific Research General Institute produces) 0.8kg, water 27kg mixes above-mentioned raw materials;
3) moulding: wet feed is inserted in the special molding car, and extrusion modling goes out the exterior wall cladding base substrate on moulding orbit;
4) standard curing: maintenance is 24 hours under the situation of trickle not, is cut into the sheet material of 1.2 meters (or 0.6 meters), back natural curing;
Obtain being mixed with the environment-friendly exterior wall hanging plate of building waste.
According to the method for testing performance among " concrete exterior wall link plate " standard Q/CBMA-01-2008 (table 1) environment-friendly exterior wall hanging plate that the present invention is mixed with building waste is detected.Testing result is as shown in table 4, shows that the environment-friendly exterior wall hanging plate that is mixed with building waste with the inventive method preparation meets standard, and has preferable performance, and fracture resistence force reaches 857N, is higher than standard-required.
Table 4 is pressed the testing result of Q/CBMA-01-2008 standard to embodiment 3 products
Embodiment 4～6, be mixed with the preparation and the Performance Detection thereof of the environment-friendly exterior wall hanging plate of building waste
Get material by table 5 proportioning, be mixed with the environment-friendly exterior wall hanging plate of building waste with the method preparation identical with embodiment 1-3, according to the method for testing performance among " concrete exterior wall link plate " standard Q/CBMA-01-2008 (table 1) environment-friendly exterior wall hanging plate that is mixed with building waste that obtains is detected, testing result is as shown in table 5, show that the environment-friendly exterior wall hanging plate that is mixed with building waste with the inventive method preparation meets standard, and has a preferable performance, fracture resistence force all 〉=850N, be higher than standard-required.
The raw material proportioning of table 5 embodiment 4～6 and product testing result
Above embodiment shows, the present invention can utilize discarded building waste to prepare environment-friendly exterior wall hanging plate, not only can consume a large amount of building wastes, can also reduce cement consumption (reducing 10-20%), partly or entirely substitute sand, its product meets " concrete exterior wall link plate standard " fully, and is much higher than standard-required on performance indications such as fracture resistence force, has excellent performance.In addition, the present invention has utilized waste resource, does not also have new pollution to produce in the preparation process, adapts to environmental protection concept, and the present invention will play a great role at building field, and market prospects are wide.
Claims (9)
1. an environment-friendly exterior wall hanging plate that is mixed with building waste is to be added with the exterior wall cladding that building waste is made on the basis of special-purpose exterior wall cladding.
2. according to the right 1 described environment-friendly exterior wall hanging plate that is mixed with building waste, it is characterized in that: the described composition of raw materials that is mixed with the environment-friendly exterior wall hanging plate of building waste comprises following components by weight portion: building waste 25-175 part, cement 75-100 part, sand 0-150 part, water reducing agent 0-1 part, thickener 0-1 part, cold drawn wire 2-18 part, water 19.5-30 part.
3. according to the right 2 described environment-friendly exterior wall hanging plates that are mixed with building waste, it is characterized in that: described building waste is preferably the particle of discarded concrete after fragmentation in concrete production process, building construction process and the building demolition process, particle diameter is preferably below the 5mm, 0.15mm more than, size distribution is comparatively even.
4. according to the right 2 described environment-friendly exterior wall hanging plates that are mixed with building waste, it is characterized in that: described cement is silicate series cement or sulphate aluminium cement.
5. according to the right 2 described environment-friendly exterior wall hanging plates that are mixed with building waste, it is characterized in that: described sand is that fineness modulus is 2.3-3.0, and mud content is 0-2.0% nature sand or manufactured sand.
6. according to the right 2 described environment-friendly exterior wall hanging plates that are mixed with building waste, it is characterized in that: described cold drawn wire is preferably steel wire diameter 2-6mm, theoretical weight 0.024-0.220kg/m, cross-sectional area 3.14-28.26mm
2, the about 190kg/mm of tensile strength
2, the about 150kg/mm of yield strength
2Steel wire.
7. according to the right 2 described environment-friendly exterior wall hanging plates that are mixed with building waste, it is characterized in that: described water reducing agent is a high efficiency water reducing agent.
8. according to the right 2 described environment-friendly exterior wall hanging plates that are mixed with building waste, it is characterized in that: described thickener is for being the additive of main component with cellulose ether, starch ether.
9. one kind prepares the arbitrary described method that is mixed with the environment-friendly exterior wall hanging plate of building waste of claim 1 to 8, may further comprise the steps:
1) cold drawn wire is arranged: the moulding orbit two ends have a fixed mount perpendicular to moulding orbit respectively, and several cold drawn wire parallel longitudinals are fixed between two fixed mounts;
2) raw material is mixed into wet feed;
3) moulding: mixed raw material is inserted in the special molding car, and wet feed is extruded the moulding wall link plate base substrate of going out on the moulding orbit of arranging cold drawn wire along with the moulding car moves ahead;
4) maintenance: the maintenance after 24 hours under the situation of trickle not of link plate base substrate, be cut into the sheet material of 1.2 meters or 0.6 meter, immersion, trickle or natural curing obtain being mixed with the environment-friendly exterior wall hanging plate of building waste.
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| CN2010101152018A CN101787779B (en) | 2010-02-26 | 2010-02-26 | Environment-friendly exterior wall hanging plate doping with construction waste and preparation method thereof |
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| CN101787779B CN101787779B (en) | 2012-06-06 |
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| CN105669093A (en) * | 2014-11-20 | 2016-06-15 | 北新绿色住宅有限公司 | Energy-saving environment-friendly exterior wall hanging plate and preparation method thereof |
| CN111871522A (en) * | 2020-07-24 | 2020-11-03 | 中鼎国际工程有限责任公司 | Environment-friendly exterior wall cladding doped with construction waste and preparation method thereof |
| CN114603701A (en) * | 2022-04-13 | 2022-06-10 | 武汉市华江幸福装配式建筑有限公司 | Production and processing method of green prestressed laminated slab |
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| CN111871522B (en) * | 2020-07-24 | 2021-10-26 | 中鼎国际工程有限责任公司 | Preparation method of environment-friendly exterior wall cladding doped with construction waste |
| CN114603701A (en) * | 2022-04-13 | 2022-06-10 | 武汉市华江幸福装配式建筑有限公司 | Production and processing method of green prestressed laminated slab |
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| CN101787779B (en) | 2012-06-06 |
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