CN110194622A - A kind of foamed concrete production technology - Google Patents

A kind of foamed concrete production technology Download PDF

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Publication number
CN110194622A
CN110194622A CN201910392507.9A CN201910392507A CN110194622A CN 110194622 A CN110194622 A CN 110194622A CN 201910392507 A CN201910392507 A CN 201910392507A CN 110194622 A CN110194622 A CN 110194622A
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CN
China
Prior art keywords
production technology
chamber
parts
foamed
concrete production
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910392507.9A
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Chinese (zh)
Inventor
杨新民
倪操贤
李扬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Dadongwu Group Construction Co Ltd
Original Assignee
Zhejiang Dadongwu Group Construction Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Dadongwu Group Construction Co Ltd filed Critical Zhejiang Dadongwu Group Construction Co Ltd
Priority to CN201910392507.9A priority Critical patent/CN110194622A/en
Publication of CN110194622A publication Critical patent/CN110194622A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • C04B28/04Portland cements

Abstract

The invention belongs to technical field of concrete production, specifically a kind of foamed concrete production technology, this technique uses special foamed pot, and optimizes formula, so that the concrete strength height produced of this production technology, light weight, fire resistance are good;And this technique uses dedicated foamed pot, bubbling efficiency is high, and foaming is directly cast-in-place i.e. plastic later without carrying out steam press maintenance step.

Description

A kind of foamed concrete production technology
Technical field
The invention belongs to technical field of concrete production, especially a kind of foamed concrete production technology.
Background technique
Currently, China increasingly payes attention to Building Energy-saving Work, foam concrete is with its good characteristic, in energy-saving wall material Have a wide range of applications in material, thus foam concrete in present construction using more and more extensive, existing bubble Foam concrete foam process is divided into two kinds, physical foaming method and chemical blowing method.
Logistics foaming method, cost is not high, but thermal insulation property is relatively low;The technique that chemical method produces thermal insulation material is multiple It is miscellaneous, higher cost and to carry out cutting in process of production so that certain pollution can be generated.
And present foam concrete needs first to carry out production mortar in dedicated production site, after mortar produces It just can be used to transport to job location and foam, site operation can just be carried out by also needing to carry out steam press maintenance after foaming.
Summary of the invention
The present invention provides a kind of foamed concrete production technology, concrete strength height which produces, light weight, resistance to Fire is good, and without carrying out steam press maintenance step, directly cast-in-place i.e. plastic.
A kind of technical solution of present invention realization object above are as follows: foamed concrete production technology, comprising the following steps:
S1: it by lime stone heating, drying and grinds;
S2: portland cement and flyash are purified;
S3: in parts by mass, 190-220 parts of portland cement, 180-200 parts of flyash, 150-160 parts of lime stone, expansion are precious 10-15 parts of pearl rock, 100-200 parts of sand, 1-3 parts of stabilizer, 1-2 parts of waterproofing agent, in 3-5 parts of addition blenders of extra material;
S4: opening blender, revolving speed 60-80r/min, and mixing time is 5-10 minutes;
S5: after the completion of stirring, foaming agent is added in foamed pot, is pressurizeed using air pump into foamed pot;
S6: in the slurry after the foaming agent after pressurization is stirred by foam gun injection, and it is again started up blender, revolving speed is 50-70r/min stirs 4-8min, after the completion of stirring, waits completion to be foamed.
As an embodiment of the present invention, the sand is one of sea sand, river sand or a variety of mixing.
As an embodiment of the present invention, the stabilizer is hydroxylmethyl cellulose sodium or poly- propyl alcohol or polyvinyl alcohol.
As an embodiment of the present invention, the waterproofing agent be higher fatty acids waterproofing agent or inorganic aluminate water-proof agent or Two kinds of mixing.
As an embodiment of the present invention, the extra material is three kinds of methylcellulose, amide, anti-crack fiber components Intermixture.
As an embodiment of the present invention, the foaming agent is that WSD foaming agent and cationic surfactant mix Composite foamable agent.
As an embodiment of the present invention, the cationic surfactant is the quaternary ammonium salt containing phenyl ring.
As an embodiment of the present invention, the cationic surfactant and WSD foaming agent press the ratio of 1-5:95-99 Example mixing.
As an embodiment of the present invention, the foamed pot includes pressurizing chamber, pressure letdown chamber, pressure gauge, foam chamber, heating Device, foam gun, cooling gas check valve, liquid non-return valve, liquid injection port, the liquid injection port are set to the outer layer table of foamed pot Face, and be connected to by liquid non-return valve with foam chamber, the pressurizing chamber, pressure letdown chamber are gas held chamber, pass through cooling gas check valve It is connected to foam chamber, the heater is located at below foam chamber bottom end and abuts with foam chamber, for the liquid in foamable chamber Body.
Beneficial effects of the present invention: a kind of concrete strength that concrete production technology is produced height of the present invention, light weight, Fire resistance is good;And this technique uses dedicated foamed pot, bubbling efficiency is high, and foaming is later without carrying out steam press maintenance step, directly It connects cast-in-place i.e. plastic.
Detailed description of the invention
Fig. 1 is a kind of concrete production technology foamed pot cross-sectional view of the structure of the present invention;
1- foamed pot, 11- pressurizing chamber, 12- pressure letdown chamber, 13- foam chamber, 2- liquid injection port, 3- foam gun.
Specific embodiment
In order to illustrate the embodiments of the present invention more clearly with technical solution in the prior art, Detailed description of the invention will be compareed below A specific embodiment of the invention.It should be evident that drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing, and obtain other embodiments, the present invention is not restricted to the embodiment.
A kind of foamed concrete production technology of the embodiment of the present invention, comprising the following steps:
S1: it by lime stone heating, drying and grinds;
S2: portland cement and flyash are purified;
S3: in parts by mass, 190-220 parts of portland cement, 180-200 parts of flyash, 150-160 parts of lime stone, expansion are precious 10-15 parts of pearl rock, 100-200 parts of sand, 1-3 parts of stabilizer, 1-2 parts of waterproofing agent, in 3-5 parts of addition blenders of extra material;
S4: opening blender, revolving speed 60-80r/min, and mixing time is 5-10 minutes;
S5: after the completion of stirring, foaming agent is added in foamed pot 1, is pressurizeed using air pump into foamed pot 1;
S6: in the slurry after the foaming agent after pressurization is stirred by the injection of foam gun 3, and it is again started up blender, revolving speed is 50-70r/min stirs 4-8min, after the completion of stirring, waits completion to be foamed.
As an embodiment of the present invention, the sand is one of sea sand, river sand or a variety of mixing.
As an embodiment of the present invention, the stabilizer is hydroxylmethyl cellulose sodium or poly- propyl alcohol or polyvinyl alcohol.
Stabilizer is the chemicals that can increase solution, colloid, solid, mixture equistability energy, has and slows down reaction, protects The effects of holding chemical balance, reduce surface tension and preventing light, thermal decomposition or oxygenolysis, and, and mortar is heterogeneous Three-phase body, i.e. solid, liquids and gases, stability, which is added, in mortar ensures the uniformity of mortar, gives coagulation after molding Soil zone carrys out the variation of durability.
As an embodiment of the present invention, the waterproofing agent be higher fatty acids waterproofing agent or inorganic aluminate water-proof agent or Two kinds of mixing.
The waterproof mortar for admixing fatty acid waterproofing agent has high temperature resistant, acid and alkali-resistance, corrosion-resistant, nontoxic, tasteless, plasticity By force, durable years length, safety and environmental protection, be not cracked, the not accumulation of salt in the surface soil, not stratified, puncture-resistant, labor and material saving.
As an embodiment of the present invention, the extra material is three kinds of methylcellulose, amide, anti-crack fiber components Intermixture.
Methyl cellulose has the characteristics that thickening, surface-active, film forming and forms thermal gels, and amide is a kind of excellent Solvent, anti-crack fiber are a kind of to be specially added to mortar, can play anti-cracking impervious function in cement concrete.
As an embodiment of the present invention, the foaming agent is that cationic surfactant is mixed with WSD foaming agent That is the composite foamable agent that mixes of protein object, water, cationic surfactant.
Cationic surfactant is a kind of reagent that can reduce surface tension of liquid, is usually dredged in the molecule containing one Water base group and a hydrophilic radical, can be used as detergent, emulsifier, defoaming agent etc.,
The effect of surfactant is to can significantly reduce table (boundary) face tension.Wherein solubilising is because surfactant can be formed Various forms of micellas, dispersate enters in micella capsule or interlayer makes intermicellar swelling but does not rupture that (system appearance does not have yet Variation), thus " increased " solubility.It emulsifies similar, levigate solia particle (0.1 μm to tens μm of partial size) is distributed to liquid When in body, a small amount of surfactant, which is added, can increase the wetness degree of liquid versus solid, inhibit the conglomerate of solia particle Tendency, so as to be evenly dispersed in liquid well.Foam is that undissolved gas body is scattered in shape in liquid or molten solids At disperse system.It can make the substance foaming agent that foam is stable.Gas, which enters in liquid (water), to be surrounded to form bubble by liquid film.Table Face activating agent is enriched in gas-liquid interface, is stretched in bubble with its hydrophobic group, its hydrophilic group is directed toward solution, forms monolayer Film.The formation of this film reduces the tension at interface and bubble is made to be in more stable thermodynamic state.When bubble in the solution When floating to liquid level and escaping, vacuolar membrane has formed bimolecular film.
In conclusion the composite foamable agent of the invention for being added to protein object is even more a kind of excellent foaming agent, use The foam surface intensity that the foaming agent generates is very high, and foam is extremely stable, with its bubble of foamed cement of its production in mutually solely Vertical closed state, the permeability resistance for not being connected to foam cement product between bubble and bubble is fine, and expansion rate is fast, nothing It need to carry out steam press maintenance.
As an embodiment of the present invention, the cationic surfactant is the quaternary ammonium salt containing phenyl ring.
As an embodiment of the present invention, the cationic surfactant and WSD foaming agent press the ratio of 1-5:95-99 Example mixing.
As an embodiment of the present invention, the foamed pot 1 includes pressurizing chamber 11, pressure letdown chamber 12, pressure gauge, foam chamber 13, heater, foam gun 3, cooling gas check valve, liquid non-return valve, liquid injection port 2, the liquid injection port 2 are set to foamed pot 1 superficies, and be connected to by liquid non-return valve with foam chamber 13, the pressurizing chamber 11, pressure letdown chamber 12 are gas held chamber, It being connected to by cooling gas check valve with foam chamber 13, the heater is located at below 13 bottom end of foam chamber and abuts with foam chamber 13, For the liquid in foamable chamber 13.
Wherein, by liquid injection port 2 by above-mentioned cationic surfactant, protein object, water is added to foaming agent In foamed pot 1, after addition, closing liquid inlet 2 is injected gas into foam chamber 13 by pressurizing chamber 11 and is pressurized, together When pass through heater promoted foam chamber 13 in temperature, accelerate foaming process, wherein pressurization is to make under pressure Air dissolves in cement slurry;After decompression, pressure reduces in mud, and air expands and that many volume sizes are formed in cement slurry is equal Deng steam bubble, then cooperate the effect of foaming agent, can quickly form foam concrete.
Specific embodiments of the present invention are described in detail above.It should be appreciated that those skilled in the art are without wound The property made labour, which according to the present invention can conceive, makes many modifications and variations.Therefore, all those skilled in the art Present inventive concept passes through the available technical solution of logical analysis, reasoning, or a limited experiment in the prior art, all It should be in protection scope determined by the claims.

Claims (9)

1. a kind of foamed concrete production technology, which comprises the following steps:
S1: it by lime stone heating, drying and grinds;
S2: portland cement and flyash are purified;
S3: in parts by mass, 190-220 parts of portland cement, 180-200 parts of flyash, 150-160 parts of lime stone, expansion are precious 10-15 parts of pearl rock, 100-200 parts of sand, 1-3 parts of stabilizer, 1-2 parts of waterproofing agent, in 3-5 parts of addition blenders of extra material;
S4: opening blender, revolving speed 60-80r/min, and mixing time is 5-10 minutes;
S5: after the completion of stirring, foaming agent being added in foamed pot (1), the pressurization into foamed pot (1) using air pump;
S6: in the slurry after the foaming agent after pressurization is stirred by foam gun (3) injection, and it is again started up blender, revolving speed For 50-70r/min, 4-8min is stirred, after the completion of stirring, waits completion to be foamed.
2. a kind of foamed concrete production technology according to claim 1, which is characterized in that the sand is sea sand, river One of sand or a variety of mixing.
3. a kind of foamed concrete production technology according to claim 1, which is characterized in that the stabilizer is methylol Fiber sodium or poly- propyl alcohol or polyvinyl alcohol.
4. a kind of foamed concrete production technology according to claim 1, which is characterized in that the waterproofing agent is advanced rouge Fat acid waterproofing agent or inorganic aluminate water-proof agent or two kinds of mixing.
5. a kind of foamed concrete production technology according to claim 1, which is characterized in that the extra material is that methyl is fine Tie up element, amide, three kinds of components of anti-crack fiber intermixture.
6. a kind of foamed concrete production technology according to claim 1, which is characterized in that the foaming agent is WSD hair The composite foamable agent that infusion and cationic surfactant mix.
7. a kind of foamed concrete production technology according to claim 6, which is characterized in that the cation surface activating Agent is the quaternary ammonium salt containing phenyl ring.
8. a kind of foamed concrete production technology according to claim 6, which is characterized in that the cation surface activating Agent and WSD foaming agent are mixed in the ratio of 1-5:95-99.
9. a kind of foamed concrete production technology according to claim 1, which is characterized in that the foamed pot (1) includes Pressurizing chamber (11), pressure letdown chamber (12), pressure gauge, foam chamber (13), heater, foam gun (3), cooling gas check valve, liquid are unidirectional Valve, liquid injection port (2), the liquid injection port (2) be set to foamed pot (1) superficies, and by liquid non-return valve with Foam chamber (13) connection, the pressurizing chamber (11), pressure letdown chamber (12) are gas held chamber, pass through cooling gas check valve and foam chamber (13) it is connected to, the heater is located at below foam chamber (13) bottom end and abuts with foam chamber (13), is used for foamable chamber (13) liquid in.
CN201910392507.9A 2019-05-13 2019-05-13 A kind of foamed concrete production technology Pending CN110194622A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111456288A (en) * 2020-04-13 2020-07-28 孔蕾蕾 Heat-insulating wall for high-rise building

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Publication number Priority date Publication date Assignee Title
CN111456288A (en) * 2020-04-13 2020-07-28 孔蕾蕾 Heat-insulating wall for high-rise building

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