CN105906371A - Production method of lightweight concrete prefabricated big panels - Google Patents
Production method of lightweight concrete prefabricated big panels Download PDFInfo
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- CN105906371A CN105906371A CN201610256856.4A CN201610256856A CN105906371A CN 105906371 A CN105906371 A CN 105906371A CN 201610256856 A CN201610256856 A CN 201610256856A CN 105906371 A CN105906371 A CN 105906371A
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- lightweight concrete
- large panel
- assembled large
- concrete assembled
- foaming agent
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a production method of lightweight concrete prefabricated big panels. The method comprises the following steps: 1, selecting raw materials according to a case that every cubic meter of lightweight concrete prefabricated big panels contains 450-550kg of cement, 65-195kg of stone flour, 3.25-9.75kg of a water reducer and 0.01-0.05kg of a foaming agent, foaming the foaming agent, uniformly mixing cement, the stone flour and the water reducer to prepare a cement mortar, adding the foamed foaming agent to the cement mortar, and uniformly stirring the foamed foaming agent and the cement mortar to prepare lightweight concrete; and 2, pouring the lightweight concrete in a die, and carrying out demolding treatment and curing to produce the lightweight concrete prefabricated big panels. The method solves the problem of adverseness of too large weight of common prefabricated big panels to transportation and hoisting installation, the weight of the lightweight concrete prefabricated big panels produced in the invention is about 50% lower than that of common concrete prefabricated big panels, and the construction efficiency of prefabricated wallboards is effectively increased.
Description
Technical field
The invention belongs to assembled large panel technical field, be specifically related to the preparation method of a kind of lightweight concrete assembled large panel.
Background technology
Building industry modernization is the direction of China's building trade development.Development architectural industrialization is the right-about that architecture production mode produces to intensive style from extensive production, is inevitable approach and the developing direction of industry modernization.Currently, " Central Committee of the Communist Party of China is about the decision of some significant problems of deepening the reforms in an all-round way " explicitly point out will " modern market system be improved in quickening, accelerates transformation of the mode of economic development, Accelerating The Construction innovation-oriented country "；" national novel urbanization planning (2014-2020) " proposes to want " strength advances building industrialization, promotes building industry modernization "；House town and country construction portion " about advancing construction industry development and some suggestions of reform " (establishing the city [2014] No. 92) is it is also proposed that " to change construction industry development mode, to advance building industry modernization, to promote that building industry health coordinates sustainable development "." green building action scheme " (Office of the State Council sends out (2013) No. 1) that State Council issues, proposes " to promote building industrialization " in key task, strengthens Society, widely popularize green building.Guangdong Province's " green building action scheme " also indicates that " pushing forward green building action comprehensively, accelerate to advance Resources for construction economizing type and pro-environmental society, carry forward vigorously architectural industrialization ".Through research and effort for many years, national standard " prefabricated concrete structure technical regulation " was formally implemented in October, 2014, and the promotion and application for assembly concrete building provide technical support.
Architectural industrialization is the important support point advancing and implementing country's " one with a road " policy." one with a road " is the important national strategy that China proposes in recent years, and its topmost starting point is to extend and open.Build together " one band one tunnel " serve that and safeguard global free trade system and opening World Economics, promote economic factor to flow freely in order, resource high-efficiency configures and market depth merges, promote various countries along the line to realize economic policy to coordinate, carry out wider, higher level, deeper regional cooperation.Opportunity whereby, Guangdong Province is as reform and opening-up " bridgehead ", it is located in foreign economic exchange forward position, rely on the regional advantages of " Guangdong,Hongkong and Macao economic circle ", superior politics, economic condition are that we explore Hong Kong and Macao and overseas construction market actively, Radix Ginseng preparata and " band one tunnel " countries and regions infrastructure construction along the line, effectively implement, implementing country one band, riches all the way that exhibition strategy has established solid foundation, and everything will significantly accelerate the development of our province building industry modernization, promote and realize our province building industry Export-oriented Economic Development new leap.
The popularization of prefabricated buildings is the core content of architectural industrialization.Modern architecture industrial development needs to promote prefabricated components and constructs with motorization assembly, and concrete assembled house meets modern energy saving building and the direction of Green Architectural Development.Current China is the demand that main building structure external wall system has been not suitable with modern architecture industrial development with " beam+post+filling wall ".Meanwhile universal and construction technology the popularization that progress is concrete assembled house of construction machinery provides advantage.
Summary of the invention
It is an object of the invention to provide the preparation method of a kind of lightweight concrete assembled large panel, this preparation method solve common assembled large panel weight the heaviest and be unfavorable for transport with lifting install problem, use lightweight concrete assembled large panel prepared by the method, weight relatively normal concrete assembled wallboard alleviates weight and is about 50%, effectively raises the efficiency of construction of assembled wallboard.
The above-mentioned purpose of the present invention is achieved through the following technical solutions: the preparation method of a kind of lightweight concrete assembled large panel, comprises the following steps:
(1) each raw material is chosen according in every cubic metre of lightweight concrete assembled large panel containing cement 450 ~ 550kg, stone powder 65 ~ 195 kg, water reducer 3.25 ~ 9.75 kg, the proportion by weight of foaming agent 0.01 ~ 0.05 kg, first by foaming agent foam, again cement mortar is made in the mixing of cement, stone powder and water reducer, then the foaming agent after foaming is added in cement mortar, stir evenly and i.e. prepare lightweight concrete；
(2) lightweight concrete is poured in mould, i.e. prepare lightweight concrete assembled large panel through demoulding process and maintenance.
In the preparation method of above-mentioned lightweight concrete assembled large panel:
Described in step (1), water reducer is preferably polycarboxylate water-reducer, commercially available prod.
Foaming agent described in step (1) is preferably sodium lauryl sulphate K12, polyoxyethylenated alcohol sodium sulfate AES or Colophonium soaps foaming agent.
Being painted with releasing agent described in step (2) in mould in advance, described releasing agent is preferably ethylenediamine or O-phthalic ester.
Described in step (2), the width of lightweight concrete assembled large panel is preferably 600,1200,1800 and 3000mm, and length is preferably 1800,2440,3600 and 4000mm.
The lightweight concrete assembled large panel of same width can corresponding multiple length dimensions such as width be that the big plate of lightweight concrete of 600mm can corresponding 1800,2440,3600 or the length of 4000mm.
Described in step (2), the intensity of lightweight concrete assembled large panel is 4.5 ~ 15MPa.
Described in step (2), the density of lightweight concrete assembled large panel is 600～1200kg/m3。
Described in step (2), the heat conductivity of lightweight concrete assembled large panel is 0.13 ~ 0.26w/m K.
Described in step (2), the thickness of lightweight concrete assembled large panel is 100～240mm, and its heat transfer coefficient is 0.57～1.05 w/m2•K。
Compared with prior art, present invention have the advantage that
(1) preparation method of lightweight concrete assembled large panel of the present invention, optimization to the match ratio of lightweight concrete, by adjusting cement and the ratio of stone powder, additive kind and volume, foaming agent kind and consumption etc., the lightweight concrete that the preparation various aspects of performance such as intensity, service behaviour is the most advantageous, it is achieved the optimization design of high-performance light concrete mix；
(2) lightweight concrete that the present invention makes has the performances such as excellent insulation, heat insulation, sound insulation, waterproof and fire prevention；
(3) the lightweight concrete assembled large panel that the inventive method is made has the lightweight concrete assembled large panel of the multifunctional alls such as energy-conservation, fire prevention sound insulation, flatness is good, exempt to plaster, steel pipe buried in advance, hanging are strong；
(4) industrialized production system and the construction system of the multi-functional big plate of lightweight concrete assembled are set up, it is achieved the significant innovation to conventional building construction system；
(5) use fabricated construction, will effectively lower labor intensity, be greatly improved construction precision, reduce construction noise, realize civilized construction；
(6) realize that construction material is energy-conservation, self waterproofing, fire prevention, material-saving and environmental protection；
(7) contribute to China, Guangdong Province's building industrialization system set up with perfect, contribute to the popularization and application of green building.
Detailed description of the invention
Embodiment
1
The preparation method of the lightweight concrete assembled large panel that the present embodiment provides, comprises the following steps:
(1) each raw material is chosen according in every cubic metre of lightweight concrete assembled large panel containing cement 450kg, stone powder 195kg, water reducer 3.25kg, foaming agent 0.05kg, first by foaming agent foam, again cement mortar is made in the mixing of cement, stone powder and water reducer, then the foaming agent after foaming is added in cement mortar, stir evenly and i.e. prepare lightweight concrete；
(2) lightweight concrete is poured in mould, i.e. prepare lightweight concrete assembled large panel through demoulding process and maintenance.
Simultaneously, before lightweight concrete is poured in mould, complete pre-buried default, the steel fabric sheet installation of hydroelectric line of lightweight assembled large panel in a mold, when lightweight concrete is poured in mould, quantity and the diameter of the ectonexine reinforcing bar of lightweight concrete assembled large panel can also be adjusted, steel bar preassembling is embedded in lightweight concrete, quantity is depending on requirement of engineering, thus improving the Wind-Pressure Resistance load-carrying ability of Side fascia, plane deformation performance, these can operate according to ordinary skill in the art means.
Wherein in step (1), water reducer is polycarboxylate water-reducer, and foaming agent is sodium lauryl sulphate K12.
Being painted with releasing agent in advance in step (2) mould, releasing agent is ethylenediamine.
In step (2), the width of lightweight concrete assembled large panel is 600mm, a length of 1800mm.
In step (2), the intensity of lightweight concrete assembled large panel is 7.8MPa.
In step (2), the density of lightweight concrete assembled large panel is 791kg/m3。
In step (2), the heat conductivity of lightweight concrete assembled large panel is 0.18w/m K.
In step (2), the thickness of lightweight concrete assembled large panel is 240mm, and its heat transfer coefficient is 1.05 w/m2•K。
Prepared lightweight concrete assembled large panel send the detection of project delivery method safety supervision detection master station of Guangdong Province, and testing result shows, normal concrete unit weight 2400 ~ 2800kg/m3, the lightweight concrete assembled large panel unit weight that the present invention prepares is 600～1200kg/m3, compared with the quality with the normal concrete assembled large panel of size, the Mass lost of the lightweight concrete assembled large panel in the present invention about 50%.
Embodiment
2
The preparation method of the lightweight concrete assembled large panel that the present embodiment provides, comprises the following steps:
(1) each raw material is chosen according in every cubic metre of lightweight concrete assembled large panel containing cement 550kg, stone powder 65kg, water reducer 9.75kg, foaming agent 0.01kg, first by foaming agent foam, again cement mortar is made in the mixing of cement, stone powder and water reducer, then the foaming agent after foaming is added in cement mortar, stir evenly and i.e. prepare lightweight concrete；
(2) lightweight concrete is poured in mould, i.e. prepare lightweight concrete assembled large panel through demoulding process and maintenance.
Wherein in step (1), water reducer is polycarboxylate water-reducer, and foaming agent is polyoxyethylenated alcohol sodium sulfate AES.
Being painted with releasing agent in advance in step (2) mould, releasing agent is O-phthalic ester.
In step (2), the width of lightweight concrete assembled large panel is 1200mm, a length of 1800mm.
In step (2), the intensity of lightweight concrete assembled large panel is 15MPa.
In step (2), the density of lightweight concrete assembled large panel is 1187kg/m3。
In step (2), the heat conductivity of lightweight concrete assembled large panel is 0.26w/m K.
In step (2), the thickness of lightweight concrete assembled large panel is 160mm, and its heat transfer coefficient is 0.8 w/m2•K。
Prepared lightweight concrete assembled large panel send the detection of project delivery method safety supervision detection master station of Guangdong Province, and testing result shows, normal concrete unit weight 2400 ~ 2800kg/m3, the lightweight concrete assembled large panel unit weight that the present invention prepares is 600～1200kg/m3, compared with the quality with the normal concrete assembled large panel of size, the Mass lost of the lightweight concrete assembled large panel in the present invention about 50%.
Embodiment
3
The preparation method of the lightweight concrete assembled large panel that the present embodiment provides, comprises the following steps:
(1) each raw material is chosen according in every cubic metre of lightweight concrete assembled large panel containing cement 500kg, stone powder 100kg, water reducer 6.25kg, foaming agent 0.03kg, first by foaming agent foam, again cement mortar is made in the mixing of cement, stone powder and water reducer, then the foaming agent after foaming is added in cement mortar, stir evenly and i.e. prepare lightweight concrete；
(2) lightweight concrete is poured in mould, i.e. prepare lightweight concrete assembled large panel through demoulding process and maintenance.
Wherein in step (1), water reducer is polycarboxylate water-reducer, and foaming agent is Colophonium soaps foaming agent.
Being painted with releasing agent in advance in step (2) mould, releasing agent is O-phthalic ester.
In step (2), the width of lightweight concrete assembled large panel is 3000mm, a length of 4000mm.
In step (2), the intensity of lightweight concrete assembled large panel is 4.5MPa.
In step (2), the density of lightweight concrete assembled large panel is 600kg/m3。
In step (2), the heat conductivity of lightweight concrete assembled large panel is 0.2w/m K
In step (2), the thickness of lightweight concrete assembled large panel is 100mm, and its heat transfer coefficient is 0.57w/m2•K。
Prepared lightweight concrete assembled large panel send the detection of project delivery method safety supervision detection master station of Guangdong Province, and testing result shows, normal concrete unit weight 2400 ~ 2800kg/m3, the lightweight concrete assembled large panel unit weight that the present invention prepares is 600～1200kg/m3, compared with the quality with the normal concrete assembled large panel of size, the Mass lost of the lightweight concrete assembled large panel in the present invention about 50%.
Although the present invention is open the most as above with embodiment, but it is not limited to protection scope of the present invention, any is familiar with those skilled in the art, in the change made without departing from the spirit and scope of the invention and retouching, all should belong to protection scope of the present invention.
Claims (9)
1. a preparation method for lightweight concrete assembled large panel, is characterized in that comprising the following steps:
(1) each raw material is chosen according in every cubic metre of lightweight concrete assembled large panel containing cement 450 ~ 550kg, stone powder 65 ~ 195 kg, water reducer 3.25 ~ 9.75kg, the proportion by weight of foaming agent 0.01 ~ 0.05kg, first by foaming agent foam, again cement mortar is made in the mixing of cement, stone powder and water reducer, then the foaming agent after foaming is added in cement mortar, stir evenly and i.e. prepare lightweight concrete；
(2) lightweight concrete is poured in mould, i.e. prepare lightweight concrete assembled large panel through demoulding process and maintenance.
The preparation method of lightweight concrete assembled large panel the most according to claim 1, is characterized in that: described in step (1), water reducer is polycarboxylate water-reducer.
The preparation method of lightweight concrete assembled large panel the most according to claim 1, is characterized in that: foaming agent described in step (1) is sodium lauryl sulphate K12, polyoxyethylenated alcohol sodium sulfate AES or Colophonium soaps foaming agent.
The preparation method of lightweight concrete assembled large panel the most according to claim 1, is characterized in that: be painted with releasing agent described in step (2) in mould in advance, and described releasing agent is ethylenediamine or O-phthalic ester.
The preparation method of lightweight concrete assembled large panel the most according to claim 1, is characterized in that: described in step (2), the width of lightweight concrete assembled large panel is 600,1200,1800 and 3000mm, a length of 1800,2440,3600 and 4000mm.
The preparation method of lightweight concrete assembled large panel the most according to claim 1, is characterized in that: described in step (2), the intensity of lightweight concrete assembled large panel is 4.5 ~ 15MPa.
The preparation method of lightweight concrete assembled large panel the most according to claim 1, is characterized in that: described in step (2), the density of lightweight concrete assembled large panel is 600～1200kg/m3。
The preparation method of lightweight concrete assembled large panel the most according to claim 1, is characterized in that: described in step (2), the heat conductivity of lightweight concrete assembled large panel is 0.13 ~ 0.26w/m K.
The preparation method of lightweight concrete assembled large panel the most according to claim 1, is characterized in that: described in step (2), the thickness of lightweight concrete assembled large panel is 100～240mm, and its heat transfer coefficient is 0.57～1.05 w/m2•K。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610256856.4A CN105906371B (en) | 2016-04-25 | 2016-04-25 | A kind of preparation method of lightweight concrete assembled large panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610256856.4A CN105906371B (en) | 2016-04-25 | 2016-04-25 | A kind of preparation method of lightweight concrete assembled large panel |
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| Publication Number | Publication Date |
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| CN105906371A true CN105906371A (en) | 2016-08-31 |
| CN105906371B CN105906371B (en) | 2019-01-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108947579A (en) * | 2018-09-20 | 2018-12-07 | 扬州工业职业技术学院 | A kind of novel light, resistance to compression, insulating foam concrete segment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103896540A (en) * | 2014-03-14 | 2014-07-02 | 四川长安育才建材有限公司 | Preparation method of foam concrete in mountain flour structure |
| CN104829187A (en) * | 2015-01-05 | 2015-08-12 | 潍坊德霖建材科技有限公司 | Novel foam concrete block for self-heat-insulation of wall body and producing method of same |
-
2016
- 2016-04-25 CN CN201610256856.4A patent/CN105906371B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103896540A (en) * | 2014-03-14 | 2014-07-02 | 四川长安育才建材有限公司 | Preparation method of foam concrete in mountain flour structure |
| CN104829187A (en) * | 2015-01-05 | 2015-08-12 | 潍坊德霖建材科技有限公司 | Novel foam concrete block for self-heat-insulation of wall body and producing method of same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108947579A (en) * | 2018-09-20 | 2018-12-07 | 扬州工业职业技术学院 | A kind of novel light, resistance to compression, insulating foam concrete segment |
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| CN105906371B (en) | 2019-01-11 |
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Effective date of registration: 20200116 Address after: 510500 No. 121 martyrs East Road, Guangzhou, Guangdong, Tianhe District Patentee after: Guangdong Construction Academy Group Plc Address before: 510500 No. 121 martyrs East Road, Guangzhou, Guangdong, Tianhe District Co-patentee before: Guangdong Jian Ke energy-conserving and environment-protective Science and Technology Ltd. Patentee before: Guangdong Construction Academy Group Plc |
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