CN108249846A - A kind of non-evaporating curing concrete prefabricated components and its forming method - Google Patents
A kind of non-evaporating curing concrete prefabricated components and its forming method Download PDFInfo
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- CN108249846A CN108249846A CN201711331839.3A CN201711331839A CN108249846A CN 108249846 A CN108249846 A CN 108249846A CN 201711331839 A CN201711331839 A CN 201711331839A CN 108249846 A CN108249846 A CN 108249846A
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- concrete
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- prefabricated components
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Classifications
-
- 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
- C04B28/02—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 containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0025—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with installation or service material, e.g. tubes for electricity or water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/003—Methods for mixing
-
- 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
Abstract
The present invention relates to a kind of non-evaporating curing concrete prefabricated components, it is characterised in that：Inorganic whisker early strength agent and nucleus type early strength agent are added to by a certain percentage simultaneously, its early strength is improved in concrete prefabricated element raw material；Energy consumption can be reduced to avoid steam curing process, it is energy saving, inside concrete compactness is improved, increases concrete surface layer flatness, Crack prevention is formed, and late strength of concrete is kept to stablize, and improves concrete integral strength.
Description
Technical field
The present invention relates to building material field more particularly to a kind of non-evaporating curing concrete prefabricated components and its forming method.
Background technology
Answer what State Council put into effect《About the instruction for greatly developing assembled architecture》In " want adaptation to local conditions development assembling
The assembled architectures such as formula concrete structure, steel construction and modern wood structure strive the time with 10 years or so, making assembled architecture
The ratio for accounting for new building area reaches 30% " requirement, and more and more with assembled architecture, required concrete is pre-
Component processed is also more and more, and in order to improve early strength, form removal molding earlier need to usually use steam-cured work in the prior art
Sequence, but steam curing process has the following disadvantages：
（1）It needs to consume a large amount of energy consumption；
（2）With the raising of temperature, a part of water translates into gas, so as to more aggravate expansion.This expansion can increase
Add the porosity in concrete, and due to the increase of pressure in hole, can also cause internal generation microcrack.It is serious can be
Concrete surface generates apparent crack, causes loose, shows " swelling " state；
（3）Simultaneously in heating or cooling, due to the temperature gradient and the draught head of generation between in concrete table, it can cause
Water, gas transfer, and orientation access is formed in concrete, during heating, since steam condensate (SC) productive set is in concrete table
Face is simultaneously inwardly shifted, this is for non-condensing cement mortar, it will the ratio of mud is caused to increase, causes surface layer skin effect phenomenon；
（4）In addition, concrete is in steam-cured, since the temperature difference can form temperature stress in table, particularly during cooling, due to table
The drastically cooling of layer easily generates tensile stress so that there is crack.
（5）The growth of concrete strength depends mainly on the development of crystal colloid system in cement setting hardening process
With variation.Wherein, colloid neoformation more can Developed fiber strength effect than crystal neoformation.But in hydrothermal curing, temperature is higher, shape
Into crystal neoformation size it is bigger;Crystalline size is excessive, then means that dispersion degree is small, this is not for the development of later strength
Profit.In addition, in high-temperature steam curing, since the neoplastic speed of separating out of colloid is accelerated, and around unhydrated cement particle
One layer of colloid film, and glued membrane progressive additive are gathered, hinders moisture deeply and the aquation of cement particle develops, so as to make the later stage
Intensity is hindered, and temperature is higher, and such phenomenon is more serious.
Invention content
The technical problem to be solved by the present invention is to：In order to overcome the deficiencies in the prior art and defect, the present invention carries
For a kind of non-evaporating curing concrete prefabricated components and its forming method, energy consumption can be reduced to avoid steam curing process, it is energy saving, it carries
Compactness inside high concrete increases concrete surface layer flatness, and Crack prevention is formed, and late strength of concrete is kept to stablize,
Improve concrete integral strength.
The technical solution adopted by the present invention to solve the technical problems is：A kind of non-evaporating curing concrete prefabricated components, simultaneously
Inorganic-organic hybrid early strength agent and nucleus type early strength agent are added to by a certain percentage and improved in concrete prefabricated element raw material
Its early strength, wherein each cubic meter of concrete prefabricated components raw material is formed by following each component：
42.5 Portland cements：227.5Kg；
Inorganic-organic hybrid early strength agent：The 1% ~ 5% of cement gross mass；
Nucleus type early strength agent：The 10 ~ 15% of cement gross mass；
Sand：750Kg；
Handstone：290Kg；
Big stone：760Kg；
Water：150Kg；
High efficiency water reducing agent：3Kg；
The preparation method of the non-evaporating curing concrete prefabricated components raw material includes the following steps：Using forced mixer, first dry mixing
Wet-mixing afterwards first adds in big stone, handstone and sand, starts forced mixer, stirs 40 ~ 60s；Add 42.5 common silicic acid
Salt cement starts forced mixer, continues 40 ~ 60s of stirring；By inorganic-organic hybrid early strength agent and nucleus type early strength agent and
High efficiency water reducing agent, which is dispersed in water, forms mixing water, is slowly injected into the mixing water of gross mass 80% in 20s in blender,
Marginal not enters side stirring 2min, and the mixing water stirring 1min for then adding in remaining gross mass 20% at once can discharge.
Further, the early strong mass component 55% ~ 85% of inorganic salts, organic matter in the inorganic-organic hybrid early strength agent
The early strong mass component 15% ~ 45% of class, wherein, the inorganic salts accelerating component is by sodium sulphate, sodium carbonate, calcium nitrate, nitrous acid
At least two kinds of in calcium compound：Organic species accelerating component by calcium formate, calcium acetate, methanol, triethanolamine extremely
Few 2 kinds compound.
Further, it is 1.0 ~ 1.7 that the nucleus type early strength agent, which selects calcium silicon mass ratio, uses the pure sodium metasilicate of analysis
(Na2SiO3 × 9H2O), calcium nitrate (Ca (NO3) 2 × 4H2O) and deionized water, the deionized water is boiled before use boils 10 points
Clock removes dissolubility CO2, and between consolidating mass ratio 9 ~ 12 using water, and being separately added into gel dispersal agent uniformly disperses reagent, makes
It is synthetically prepared with 60 DEG C of waters bath with thermostatic control, timing agitation and solution pH value is kept more than 12 during reaction, reacted product after 7d
Dry storage after filtering and washing.
Further, the forming method of the non-evaporating curing concrete prefabricated components includes the following steps：（1）Mold is installed；（2）
Mold inspection；（3）Reinforcement fabrication；（4）Inspection of steel reinforcement bars；（5）First installation of embedded parts is with checking；（6）Concrete one-time-concreting；
（7）Secondary formwork erection；（8）The installation of thermal insulation board and connector；（9）Secondary cloth muscle；（10）Second installation of embedded parts is with checking；（11）
Concrete secondary pours；（12）Component troweling；（13）Concrete curing；（14）Concrete demoulding；（15）Component lifts by crane；（16）Dew
Aggregate processing；（17）Component is examined and is repaired.
Further, step（1）In, side form carries out surface clean, so perpendicular to bed die after the completion of assembled when mold is installed
After brush aqueous or wax releasing agent；
Further, step（2）In, mold inspection item includes checking the flatness of mould contact surface, plate face bending degree, spell
Fill gap size and geometric dimension specification；
Further, step（3）In, during reinforcement fabrication, reinforcing bar binding tied silk is got rid of button and is bent towards on the inside of component, and protective layer cushion block presses plum
Flower-shaped arrangement；
Further, step（4）In, inspection of steel reinforcement bars project includes reinforcement location, specification, spacing and protective layer thickness.
Further, step（5）In, the first built-in fitting includes fixing bolt and composite water, and inspection item includes fixing
The installation site and specifications and models of bolt hole, composite water；
Further, step（6）In, uniformly continuous pours during concrete one-time-concreting, and the height that feeds intake is less than 500mm, between pouring
The time have a rest less than 40min；
Further, step（7）In, when secondary formwork erection, first carries out surface clean, then bed die brushing aqueous release agent, and side form applies
Brush wax retarder；
Further, step（8）In, binding material encapsulation process is used between thermal insulation board and connector.
Further, step（9）In, framework of steel reinforcement is first made, then framework of steel reinforcement is entered into mold forming；
Further, step（10）In, the second built-in fitting includes fixing screws and fixes sleeve, and inspection item includes fixed spiral shell
The installation site and size model number of nail, fixes sleeve；
Further, step（11）In, it is secondary to be vibrated molding with vibrating spear when pouring；
Further, step（12）In, troweling is carried out to component surface, troweling number is 3-4 times, and the last time troweling time is
10min before initial set, and holding surface flatness difference of height≤3mm；
Further, step（13）In, concrete curing uses natural curing, covers one layer in concrete surface in maintenance processes
Plastic film drips the wetting for destroying concrete surface and energy holding member to prevent condensed water；
Further, step（14）In, when demoulding, first removes fixing screws and fixing bolt, then removes composite water, then tear open
Except fixes sleeve, last form removal.
Further, step（15）In, it is lifted by crane using multiple spot hanger, suspension hook is located on prefabricated components before keeping lifting
At square 200mm, during lifting the prefabricated components road clearance be less than 500mm；
Further, step（16）In, using giant to undisguisedly expecting to clear up；
Further, step（17）In, setting Quality People carries out quality inspection to finished product, is repaired not using slurry is repaired
Influence crack and the breakage of prefabricated components structural behaviour.
The beneficial effects of the invention are as follows：
（1）Energy consumption can be reduced to avoid steam curing process, it is energy saving, the inside compactness of concrete prefabricated element raw material is improved,
Increase its surface layer flatness, Crack prevention is formed, and keeps concrete prefabricated element raw material stable long-term strength, and it is whole strong to improve it
Degree；
（2）It by being used while a variety of early strength agent, can significantly reduce costs, reduce setting time, improve concrete prefabricated
Component performance prolongs the service life；
（3）The concrete prefabricated element is molded by predetermined process, can cost of labor be reduced with effectively save process, accelerated mixed
Solidifying soil prefabricated components molding time, improves shaping efficiency.
Description of the drawings
Fig. 1 is the step flow chart of the forming method of the non-evaporating curing concrete prefabricated components of the present invention.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows composition related to the present invention.
[embodiment 1]
As shown in Figure 1, a kind of non-evaporating curing concrete prefabricated components, while inorganic-organic hybrid early strength agent and nucleus type is early strong
Agent is added to by a certain percentage improves its early strength in concrete prefabricated element raw material, wherein each cubic meter of concrete is pre-
Component raw material processed is formed by following each component：
42.5 Portland cements：227.5Kg；
Inorganic-organic hybrid early strength agent：The 1% ~ 5% of cement gross mass；
Nucleus type early strength agent：The 10 ~ 15% of cement gross mass；
Sand：750Kg；
Handstone：290Kg；
Big stone：760Kg；
Water：150Kg；
High efficiency water reducing agent：3Kg；
The preparation method of the non-evaporating curing concrete prefabricated components raw material includes the following steps：Using forced mixer, first dry mixing
Wet-mixing afterwards first adds in big stone, handstone and sand, starts forced mixer, stirs 40 ~ 60s；Add 42.5 common silicic acid
Salt cement starts forced mixer, continues 40 ~ 60s of stirring；By inorganic-organic hybrid early strength agent and nucleus type early strength agent and
High efficiency water reducing agent, which is dispersed in water, forms mixing water, is slowly injected into the mixing water of gross mass 80% in 20s in blender,
Marginal not enters side stirring 2min, and the mixing water stirring 1min for then adding in remaining gross mass 20% at once can discharge.
Specifically, the early strong mass component 55% ~ 85% of inorganic salts, organic species are early strong in inorganic-organic hybrid early strength agent
Mass component 15% ~ 45%, wherein, inorganic salts accelerating component by sodium sulphate, sodium carbonate, calcium nitrate, calcium nitrite at least
2 kinds compound：Organic species accelerating component is compounded by least two kinds of in calcium formate, calcium acetate, methanol, triethanolamine.
Specifically, it is 1.0 ~ 1.7 that nucleus type early strength agent, which selects calcium silicon mass ratio, using analyze pure sodium metasilicate (Na2SiO3 ×
9H2O), calcium nitrate (Ca (NO3) 2 × 4H2O) and deionized water, deionized water is boiled before use boils 10 minutes removal dissolubilities
CO2, between consolidating mass ratio 9 ~ 12 using water, and being separately added into gel dispersal agent uniformly disperses reagent, uses 60 DEG C of thermostatted waters
Bath is synthetically prepared, and timing agitation and solution pH value is kept more than 12 during reaction, will be done after product filtering and washing after reacting 7d
Dry storage.
Specifically, the forming method of the non-evaporating curing concrete prefabricated components includes the following steps：（1）Mold is installed；（2）Mould
Tool checks；（3）Reinforcement fabrication；（4）Inspection of steel reinforcement bars；（5）First installation of embedded parts is with checking；（6）Concrete one-time-concreting；（7）
Secondary formwork erection；（8）The installation of thermal insulation board and connector；（9）Secondary cloth muscle；（10）Second installation of embedded parts is with checking；（11）It is mixed
Solidifying soil is secondary to be poured；（12）Component troweling；（13）Concrete curing；（14）Concrete demoulding；（15）Component lifts by crane；（16）Undisguisedly
Material processing；（17）Component is examined and is repaired.
Specifically, step（1）In, side form carries out surface clean, then perpendicular to bed die after the completion of assembled when mold is installed
Brush aqueous or wax releasing agent；
Specifically, step（2）In, mold inspection item includes checking the flatness of mould contact surface, plate face bending degree, assembly
Gap size and geometric dimension specification；
Specifically, step（3）In, during reinforcement fabrication, reinforcing bar binding tied silk is got rid of button and is bent towards on the inside of component, and protective layer cushion block presses plum blossom
Shape is arranged；
Specifically, step（4）In, inspection of steel reinforcement bars project includes reinforcement location, specification, spacing and protective layer thickness.
Specifically, step（5）In, the first built-in fitting includes fixing bolt and composite water, and inspection item includes fixed spiral shell
The installation site and specifications and models of keyhole, composite water；
Specifically, step（6）In, uniformly continuous pours during concrete one-time-concreting, and the height that feeds intake pours interval less than 500mm
Time is less than 40min；
Specifically, step（7）In, when secondary formwork erection, first carries out surface clean, then bed die brushing aqueous release agent, side form brushing
Wax retarder；
Specifically, step（8）In, binding material encapsulation process is used between thermal insulation board and connector.
Specifically, step（9）In, framework of steel reinforcement is first made, then framework of steel reinforcement is entered into mold forming；
Specifically, step（10）In, the second built-in fitting include fixing screws and fixes sleeve, inspection item include fixing screws,
The installation site and size model number of fixes sleeve；
Specifically, step（11）In, it is secondary to be vibrated molding with vibrating spear when pouring；
Specifically, step（12）In, troweling is carried out to component surface, troweling number is 3-4 times, and the last time troweling time is first
10min before solidifying, and holding surface flatness difference of height≤3mm；
Specifically, step（13）In, concrete curing uses natural curing, and covering one layer in concrete surface in maintenance processes moulds
Expect film, the wetting for destroying concrete surface and energy holding member is dripped to prevent condensed water；
Specifically, step（14）In, when demoulding, first removes fixing screws and fixing bolt, then removes composite water, then remove
Fixes sleeve, last form removal.
Specifically, step（15）In, it is lifted by crane using multiple spot hanger, suspension hook is located above prefabricated components before keeping lifting
At 200mm, during lifting the prefabricated components road clearance be less than 500mm；
Specifically, step（16）In, using giant to undisguisedly expecting to clear up；
Specifically, step（17）In, setting Quality People carries out quality inspection to finished product, and not shadow is repaired using slurry is repaired
Ring crack and the breakage of prefabricated components structural behaviour.
[comparative example 1]
The difference of this comparative example and embodiment 1 is only that early strength agent only selects mineral admixture early strength agent.
[comparative example 2]
The difference of this comparative example and embodiment 1 is only that early strength agent only selects inorganic-organic hybrid early strength agent.
[comparative example 3]
The difference of this comparative example and embodiment 1 is only that early strength agent only selects nucleus type early strength agent.
[comparative example 4]
The difference of this comparative example and embodiment 1 is only that early strength agent only selects inorganic salts early strength agent.
[comparative example 5]
The difference of this comparative example and embodiment 1 is only that early strength agent only selects organic species early strength agent.
[comparative example 6]
The difference of this comparative example and embodiment 1 is only without using early strength agent.
Compared with prior art, the present invention can reduce energy consumption to avoid steam curing process, energy saving, and it is pre- to improve concrete
The inside compactness of component raw material processed increases its surface layer flatness, and Crack prevention is formed, after keeping concrete prefabricated element raw material
Phase intensity stabilization improves its integral strength；By being used while three kinds of early strength agent, it can significantly reduce costs, reduce condensation
Time improves concrete prefabricated element performance, prolongs the service life；The concrete prefabricated element is molded by predetermined process, it can
With effectively save process, cost of labor is reduced, accelerates concrete prefabricated element molding time, improves shaping efficiency.
The result shows that the non-evaporating curing concrete prefabricated components prepared by the present invention, can significantly improve its early stage and later stage
Intensity, as shown in table 1.
The intensity test result of 1 non-evaporating curing concrete prefabricated components of table
| Number | 1d | 2d | 3d | 28d |
| Embodiment 1 | 15.6MPa | 26.8MPa | 30.8MPa | 39.9MPa |
| Comparative example 1 | 10.8MPa | 24.5MPa | 29.2MPa | 33.5MPa |
| Comparative example 2 | 9.8MPa | 25.2MPa | 29.6MPa | 34.0MPa |
| Comparative example 3 | 12.6MPa | 20.2MPa | 24.3MPa | 29.4MPa |
| Comparative example 4 | 7.56MPa | 22.6MPa | 24.8MPa | 29.8MPa |
| Comparative example 5 | 8.02MPa | 23.2MPa | 25.4MPa | 31.2MPa |
| Comparative example 6 | 6.22MPa | 18.6MPa | 22.8MPa | 28.8MPa |
It can be seen that, obtained by the test of the contrast properties of comparative example and embodiment using raw material of the present invention and forming method mixed
Solidifying soil prefabricated components have higher intensity in same time, and the early strength and later strength of concrete compare the prior art
Height, and early strength effect is particularly evident, and thus the present invention there is significant progress relative to the prior art.
Using above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the content on specification, it is necessary to determine its technical scope according to right.
Claims (10)
1. a kind of non-evaporating curing concrete prefabricated components, it is characterised in that：It is simultaneously that inorganic-organic hybrid early strength agent and nucleus type is early
Strong agent is added to by a certain percentage improves its early strength in concrete prefabricated element raw material, wherein each cubic meter of concrete
Prefabricated components raw material is formed by following each component：
42.5 Portland cements：227.5Kg；
Inorganic-organic hybrid early strength agent：The 1% ~ 5% of gross mass；
Nucleus type early strength agent：The 10 ~ 15% of cement gross mass；
Sand：750Kg；
Handstone：290Kg；
Big stone：760Kg；
Water：150Kg；
High efficiency water reducing agent：3Kg；
The preparation method of the non-evaporating curing concrete prefabricated components raw material includes the following steps：Using forced mixer, first dry mixing
Wet-mixing afterwards first adds in big stone, handstone and sand, starts forced mixer, stirs 40 ~ 60s；Add 42.5 common silicic acid
Salt cement starts forced mixer, continues 40 ~ 60s of stirring；By inorganic-organic hybrid early strength agent, nucleus type early strength agent and height
Effect water-reducing agent, which is dispersed in water, forms mixing water, is slowly injected into the mixing water of gross mass 80%, side in 20s in blender
Side stirring 2min is injected, the mixing water stirring 1min for then adding in remaining gross mass 20% at once can discharge.
2. non-evaporating curing concrete prefabricated components according to claim 1, it is characterised in that：The inorganic-organic hybrid is early
The early strong mass component 55% ~ 85% of inorganic salts in strong agent, the early strong mass component 15% ~ 45% of organic species, wherein, it is described inorganic
Salt accelerating component is compounded by least two kinds of in sodium sulphate, sodium carbonate, calcium nitrate, calcium nitrite：Organic species are early
Strong component is compounded by least two kinds of in calcium formate, calcium acetate, methanol, triethanolamine.
3. non-evaporating curing concrete prefabricated components according to claim 1, it is characterised in that：The nucleus type early strength agent is selected
Calcium silicon mass ratio is 1.0 ~ 1.7, using analyze pure sodium metasilicate (Na2SiO3 × 9H2O), calcium nitrate (Ca (NO3) 2 × 4H2O) and
Deionized water, the deionized water is boiled before use boils 10 minutes removal dissolubility CO2, between consolidating mass ratio 9 ~ 12 using water,
And being separately added into gel dispersal agent uniformly disperses reagent, is synthetically prepared using 60 DEG C of waters bath with thermostatic control, timing agitation during reaction
And solution pH value is kept more than 12, it is stored after reacting 7d by dry after product filtering and washing.
4. the forming method of the non-evaporating curing concrete prefabricated components described in any one of claim 1-3, it is characterised in that：Including
Following steps：（1）Mold is installed；（2）Mold inspection；（3）Reinforcement fabrication；（4）Inspection of steel reinforcement bars；（5）First installation of embedded parts with
It checks；（6）Concrete one-time-concreting；（7）Secondary formwork erection；（8）The installation of thermal insulation board and connector；（9）Secondary cloth muscle；（10）The
Two installation of embedded parts are with checking；（11）Concrete secondary pours；（12）Component troweling；（13）Concrete curing；（14）Concrete
Demoulding；（15）Component lifts by crane；（16）Undisguised material processing；（17）Component is examined and is repaired.
5. forming method according to claim 4, it is characterised in that：
Step（1）In, side form carries out surface clean perpendicular to bed die after the completion of assembled when mold is installed, then brush it is aqueous or
Wax releasing agent；
Step（2）In, mold inspection item includes checking the flatness of mould contact surface, plate face bending degree, assembled gap ruler
Very little and geometric dimension specification；
Step（3）In, during reinforcement fabrication, reinforcing bar binding tied silk is got rid of button and is bent towards on the inside of component, and protective layer cushion block is by plum blossom-shaped arrangement.
6. forming method according to claim 5, it is characterised in that：
Step（4）In, inspection of steel reinforcement bars project includes reinforcement location, specification, spacing and protective layer thickness；
Step（5）In, the first built-in fitting includes fixing bolt and composite water, and inspection item includes fixed bolt hole, water power connects
The installation site and specifications and models of head；
Step（6）In, uniformly continuous pours during concrete one-time-concreting, and less than 500mm, pour the intermittent time is less than the height that feeds intake
40min。
7. forming method according to claim 6, it is characterised in that：
Step（7）In, when secondary formwork erection, first carries out surface clean, and then bed die brushing aqueous release agent, side form brushing wax are delayed
Solidifying agent；
Step（8）In, binding material encapsulation process is used between thermal insulation board and connector；
Step（9）In, framework of steel reinforcement is first made, then framework of steel reinforcement is entered into mold forming.
8. forming method according to claim 7, it is characterised in that：
Step（10）In, the second built-in fitting includes fixing screws and fixes sleeve, and inspection item includes fixing screws, fixes sleeve
Installation site and size model number；
Step（11）In, it is secondary to be vibrated molding with vibrating spear when pouring；
Step（12）In, troweling is carried out to component surface, troweling number is 3-4 times, before the last time troweling time is initial set
10min, and holding surface flatness difference of height≤3mm.
9. forming method according to claim 8, it is characterised in that：
Step（13）In, concrete curing uses natural curing, covers layer of plastic film in concrete surface in maintenance processes,
The wetting for destroying concrete surface and energy holding member is dripped to prevent condensed water；
Step（14）In, when demoulding, first removes fixing screws and fixing bolt, then removes composite water, then remove fixing sleeve
Cylinder, last form removal；
Step（15）In, it is lifted by crane using multiple spot hanger, suspension hook is located above prefabricated components at 200mm before keeping lifting, rises
The prefabricated components road clearance is less than 500mm when hanging.
10. forming method according to claim 9, it is characterised in that：
Step（16）In, using giant to undisguisedly expecting to clear up；
Step（17）In, setting Quality People carries out quality inspection to finished product, is not influenced using reparation slurry reparation prefabricated
The crack of element structure performance and breakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711331839.3A CN108249846B (en) | 2017-12-13 | 2017-12-13 | Steam-curing-free concrete prefabricated part and forming method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN112694293A (en) * | 2021-01-06 | 2021-04-23 | 东南大学 | Non-autoclaved concrete containing seed crystal slurry admixture and preparation method thereof |
| CN114368952A (en) * | 2022-02-15 | 2022-04-19 | 浙江瑞腾建筑新材料有限公司 | Steam-curing-free concrete prefabricated part and forming method thereof |
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| CN108249846B (en) | 2020-01-10 |
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Address after: Jianke science and Technology Park, No.1, Xiangshan Avenue, Gaozi street, Zhenjiang City, Jiangsu Province Patentee after: ZHENJIANG JIANKE CONSTRUCTION TECHNOLOGY Co.,Ltd. Address before: Beijing Xian Road 212000 Zhenjiang city Jiangsu province Jingkou District No. 38 Patentee before: ZHENJIANG JIANKE CONSTRUCTION TECHNOLOGY Co.,Ltd. |