CN101492280A - Phosphate cellular concrete and process for producing its product - Google Patents
Phosphate cellular concrete and process for producing its product Download PDFInfo
- Publication number
- CN101492280A CN101492280A CNA200910047042XA CN200910047042A CN101492280A CN 101492280 A CN101492280 A CN 101492280A CN A200910047042X A CNA200910047042X A CN A200910047042XA CN 200910047042 A CN200910047042 A CN 200910047042A CN 101492280 A CN101492280 A CN 101492280A
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- China
- Prior art keywords
- concrete
- phosphate
- cellular concrete
- percent
- magnesium oxide
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Classifications
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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
- C04B28/34—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 cold phosphate binders
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a method for preparing phosphate porous concrete and a product thereof in the technical field of construction engineering. The porous concrete comprises the following components in percentage by weight: 7.5 to 30 percent of ammonium dihydrogen phosphate, 2.45 to 9.8 percent of magnesium oxide, 60 to 90 percent of fly ash and 0.05 to 0.2 percent of thickening material. The method comprises the following steps that: materials are put into a stirrer pro rata, well mixed, added with mixing water accounting for 25 to 50 percent of the weight of dry powder and well mixed to form uniform slurry; the slurry is poured into a die for molding; the cured slurry is demoulded and cut into a light concrete product of needed size. The porous concrete provided by the invention can be directly poured on site, and does not have special requirements on maintenance conditions and construction process. The porous concrete product produced by the invention has the advantages of fast demoulding, high strength, high hardness, uniform pore distribution, high temperature resistance, no deformation, no shrinkage, good durability and other excellent properties.
Description
Technical field
That the present invention relates to is a kind of preparation method of concrete and goods thereof of construction engineering technical field, and specifically, that relate to is the preparation method of a kind of phosphate cellular concrete and goods thereof.
Background technology
Cellular concrete comes into one's own along with the propelling of energy-saving building technology in recent years as a kind of lightweight, heat preserving and insulating material.Cellular concrete is meant that those inside contain a large amount of uniform distribution, the diameter concrete less than 2 millimeters sealed porosity.At present, cellular concrete mainly contains two classes: a class is a foamed concrete, and an other class is a gas concrete.Foamed concrete system is with cement or add mixing material and porous light-weight material that slurry that water is made forms with the foam mix post-hardening made from foaming agent again.Gas concrete is to utilize chemical process to produce gas in pug and make, and the method that produces gas has the metal-powder of adding, White Cloud Mountain to produce hydrogen or carbonic acid gas with acid-respons, and lime carbonate adds water generates acetylene etc. in addition.The common intensity of traditional this two polyporous materials is all very low, has only usually below the 1MPa, can only be used for some partition wall packing materials, and have defectives such as contract with dry rate is bigger.
Find that through literature search in recent years, the researchist has carried out number of research projects in this respect and developed multiple high performance cellular concrete to prior art.As Chinese patent publication number: CN03104729.7, patent name: a kind of high strength light concrete and manufacture method thereof, this patent adopts the method for composite gelled material and multiple admixture and fiber composite, prepares the high-strength porous concrete that intensity reaches 15-30MPa.Chinese patent publication number: CN200810021256.5 and for example, patent name: high-performance aerated concrete and production method thereof, this patent proposes to adopt flyash, lime, cement, desulfurated plaster and aluminium powder cream etc. as starting material, adopts special prepared to go out the high-performance cellular concrete of low-shrinkage.In addition, Chinese patent publication number: CN 200610085717.6, patent name: a kind of gas concrete, this patent reduces cost to replace aluminium powder as beating agent and foaming agent by adopting a certain proportion of hydrogen peroxide liquid.Yet, all kinds of cellular concretes from present appearance, the gelling material that adopts substantially all is a silicate cement, has all adopted specific air entrapment agent or air to realize the porousness of inside concrete simultaneously, has increased the cost of cellular concrete so to a certain extent; It is bigger to exist contract with dry rate on the performance, and early strength is on the low side and defective such as weather resistance deviation.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of phosphate cellular concrete and preparation method thereof is provided, can be used in the light porous concrete product of plant produced, also be used in the working-yard and directly pour into a mould the wallboard of formation heat insulating, roof heat-insulating shield etc.This cellular concrete has the early strength height, surfacing, hard, do not shrink, indeformable, waterproof, high temperature resistant, internal void is evenly distributed and be sealing is not communicated with mutually.
The present invention is achieved by the following technical solutions:
Phosphate cellular concrete involved in the present invention, component that comprises and weight percent are:
Primary ammonium phosphate 7.5-30%
Magnesium oxide powder 2.45-9.8%
Flyash 60-90%
Transfer gel material 0.05-0.2%
The present invention mixes packed forming according to the above ratio.The present invention utilizes primary ammonium phosphate and magnesium oxide and flyash generation fast chemical reaction, produces micro bubble and is uniformly distributed in inside concrete.
Described primary ammonium phosphate is Powdered crystal, and its grain diameter should be less than 100um.
Described magnesium oxide was burned magnesium oxide, and its purity is greater than 80%, and the grain diameter scope is 2um-100um.
Described flyash powder can select for use II level flyash, III level flyash and high-calcium fly ass wherein a kind of, is existing matured product.
Described accent gel material can be selected boric acid, borax, citric acid for use, preferentially selects borax powder for use.
The phosphate cellular concrete involved in the present invention and the preparation method of goods thereof, specifically: claim required primary ammonium phosphate, magnesium oxide powder, flyash and accent gel material according to the above ratio, in stirrer, stir, form product, pack.When using at the construction field (site), mixing water according to prepared cellular concrete intensity and apparent density requirement adding dry powder weight 25～50%, fully stir and form distributed slurry, then slip casting is gone into die for molding, curing and demolding and the light concrete product that cuts into desired size.
Among the preparation method of the present invention, described slip can directly be poured into the attic storey flooring of buildings, becomes light porous concrete roof heat-insulating shield after the curing.
Among the preparation method of the present invention, described slip is pourable to be gone into to have laid in the concrete slab mould that steel props up, and curing and demolding is made light porous concrete panel prefabricated component.
Technical scheme of the present invention compared with prior art, having broken the porous light concrete can only produce cast and need the specific production unit and the restriction of processing requirement in factory, can be under any conditions and environment casting and constructing, the form of product can comprise building block, wallboard prefabricated component, roof heat-insulating shield etc.Porous light concrete of the present invention has fast demoulding (demould time can be finished), big, the even pore distribution of high-strength, hardness in 30 minutes, high temperature resistant, indeformable, do not shrink and excellent performance such as favorable durability
Embodiment
Below embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
Take by weighing primary ammonium phosphate 7.5% by mass ratio, magnesium oxide 2.45%, III level flyash 90%, borax 0.05%, putting into stirrer fully stirs, 30% the water that adds dry powder weight stirs and formed even flowable slip in 2 minutes, and uniform slip casting is gone into die for molding, and 30 minutes curing and demolding also cut into required size.Place under the room temperature maintenance promptly to make light porous concrete segment in 3 days then.This lightweight concrete building block is measured according to GB/T11968-1997 " autoclave aerated concrete building block " standard, and light weight is about 600kg/m
3, intensity is about 8MPa, and the drying shrinkage value is 0.25mm/m, and thermal conductivity is 0.17W/mk.Meet relevant criterion.
Embodiment 2
Take by weighing primary ammonium phosphate 30% by mass ratio, magnesium oxide 9.8%, III level flyash 60%, boric acid 1.2%, putting into stirrer fully stirs, 45% the water that adds dry powder weight stirs and formed even flowable slip in 3 minutes, and slip directly is poured into the attic storey flooring of buildings, becomes the light weight concrete roof hot plate of determining after the curing.After tested, meet standard light weight and intensity and heat transfer coefficient requirement in the industry.
Embodiment 3
Take by weighing primary ammonium phosphate 18.75% by mass ratio, magnesium oxide 6.125%, III level flyash 75%, borax 0.125%, putting into stirrer fully stirs, 25% the water that adds dry powder weight stirs and formed even flowable slip in 2 minutes, slip directly is poured into has laid in the concrete mold that steel props up, and cure and demold was made light weight concrete wallboard prefabricated component in 35 minutes.After tested, the standard light weight and the intensity that meet GB 15762-1995 " autoclaved aerated concrete slab ".
Embodiment 4
Take by weighing primary ammonium phosphate 15% by mass ratio, magnesium oxide 4.9%, III level flyash 80%, borax 0.1%, putting into stirrer fully stirs, 50% the water that adds dry powder weight stirs and formed even flowable slip in 3 minutes, and uniform slip casting is gone into die for molding, and 45 minutes curing and demolding also cut into required size.Place under the room temperature maintenance promptly to make light porous concrete segment in 3 days then.This lightweight concrete building block is measured according to GB/T11968-1997 " autoclave aerated concrete building block " standard, and light weight is about 300kg/m
3, intensity is about 2MPa, and the drying shrinkage value is less than 0.3mm/m, and thermal conductivity is 0.08W/mk, meets relevant criterion.
Claims (9)
1, a kind of phosphate cellular concrete is characterized in that, component that comprises and weight percent thereof are: primary ammonium phosphate 7.5-30%, and magnesium oxide 2.45-9.8%, flyash 60-90% transfers gel material 0.05-0.2%.
2, phosphate cellular concrete as claimed in claim 1 is characterized in that, described primary ammonium phosphate is Powdered crystal, and its grain diameter is less than 100um.
3, phosphate cellular concrete as claimed in claim 1 is characterized in that, described magnesium oxide was burned magnesium oxide, and its purity is greater than 80%, and the grain diameter scope is 2um-100um.
4, phosphate cellular concrete as claimed in claim 1 is characterized in that, described flyash powder selects for use II level flyash, III level flyash and high-calcium fly ass wherein a kind of.
5, phosphate cellular concrete as claimed in claim 1 is characterized in that, described accent gel material is selected for use in boric acid, borax, the citric acid a kind of.
6, phosphate cellular concrete as claimed in claim 5 is characterized in that, described accent gel material is selected borax powder for use.
7, a kind of preparation method of phosphate cellular concrete goods as claimed in claim 1, it is characterized in that, described cellular concrete material is put into stirrer to stir, the mixing water that adds dry powder weight 25～50%, fully stir and form distributed slurry, then slip casting is gone into die for molding, curing and demolding and the light concrete product that cuts into desired size.
8, the preparation method of phosphate cellular concrete goods as claimed in claim 6 is characterized in that, described slip directly is poured into the attic storey flooring of buildings, becomes light porous concrete roof heat-insulating shield after the curing.
9, the preparation method of phosphate cellular concrete goods as claimed in claim 6 is characterized in that, described slip casting goes into to lay in the concrete slab mould that steel props up, and curing and demolding is made light porous concrete panel prefabricated component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910047042XA CN101492280A (en) | 2009-03-05 | 2009-03-05 | Phosphate cellular concrete and process for producing its product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910047042XA CN101492280A (en) | 2009-03-05 | 2009-03-05 | Phosphate cellular concrete and process for producing its product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101492280A true CN101492280A (en) | 2009-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200910047042XA Pending CN101492280A (en) | 2009-03-05 | 2009-03-05 | Phosphate cellular concrete and process for producing its product |
Country Status (1)
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| CN (1) | CN101492280A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241525A (en) * | 2011-06-02 | 2011-11-16 | 河海大学 | Phosphate cement thermal insulation wall body material |
| CN102515824A (en) * | 2011-11-30 | 2012-06-27 | 南京航空航天大学 | Super-light foam cement concrete and preparation method thereof |
| CN104744069A (en) * | 2015-03-24 | 2015-07-01 | 上海交通大学 | Foam concrete material and preparation method thereof |
| CN104831862A (en) * | 2015-04-22 | 2015-08-12 | 上海交通大学 | Fiber-reinforced concrete composite thermal insulation permanent template |
| CN107428615A (en) * | 2014-12-23 | 2017-12-01 | 圣戈班韦伯公司 | Acid/base binding agent comprising the cement based on phosphate compounds |
| CN115304348A (en) * | 2022-09-01 | 2022-11-08 | 河南人邦科技股份有限公司 | Non-autoclaved and autoclaved double-fast aerated concrete and preparation method thereof |
-
2009
- 2009-03-05 CN CNA200910047042XA patent/CN101492280A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241525A (en) * | 2011-06-02 | 2011-11-16 | 河海大学 | Phosphate cement thermal insulation wall body material |
| CN102241525B (en) * | 2011-06-02 | 2013-05-15 | 河海大学 | Phosphate cement thermal insulation wall body material |
| CN102515824A (en) * | 2011-11-30 | 2012-06-27 | 南京航空航天大学 | Super-light foam cement concrete and preparation method thereof |
| CN102515824B (en) * | 2011-11-30 | 2013-08-21 | 南京航空航天大学 | Super-light foam cement concrete and preparation method thereof |
| CN107428615A (en) * | 2014-12-23 | 2017-12-01 | 圣戈班韦伯公司 | Acid/base binding agent comprising the cement based on phosphate compounds |
| CN104744069A (en) * | 2015-03-24 | 2015-07-01 | 上海交通大学 | Foam concrete material and preparation method thereof |
| CN104831862A (en) * | 2015-04-22 | 2015-08-12 | 上海交通大学 | Fiber-reinforced concrete composite thermal insulation permanent template |
| CN115304348A (en) * | 2022-09-01 | 2022-11-08 | 河南人邦科技股份有限公司 | Non-autoclaved and autoclaved double-fast aerated concrete and preparation method thereof |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090729 |