CN110451861A - A kind of light foam concrete preparation method - Google Patents
A kind of light foam concrete preparation method Download PDFInfo
- Publication number
- CN110451861A CN110451861A CN201910819452.5A CN201910819452A CN110451861A CN 110451861 A CN110451861 A CN 110451861A CN 201910819452 A CN201910819452 A CN 201910819452A CN 110451861 A CN110451861 A CN 110451861A
- Authority
- CN
- China
- Prior art keywords
- concrete
- foaming agent
- foam concrete
- slurries
- foams
- 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.)
- Granted
Links
- 239000011381 foam concrete Substances 0.000 title claims abstract description 84
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 239000004088 foaming agent Substances 0.000 claims abstract description 46
- 239000002002 slurry Substances 0.000 claims abstract description 45
- 239000006260 foam Substances 0.000 claims abstract description 37
- 238000010790 dilution Methods 0.000 claims abstract description 19
- 239000012895 dilution Substances 0.000 claims abstract description 19
- 239000011178 precast concrete Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 239000000243 solution Substances 0.000 claims description 21
- 239000011148 porous material Substances 0.000 claims description 20
- 239000004567 concrete Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 16
- 238000005187 foaming Methods 0.000 claims description 13
- 238000000465 moulding Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000012163 sequencing technique Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- 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
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
- B28B1/16—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted for producing layered 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
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/50—Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
-
- 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
- B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
- B28C5/381—Producing cellular concrete
- B28C5/386—Plants; Systems; Methods
- B28C5/388—Methods
-
- 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
- C04B38/106—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam by adding preformed foams
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
A kind of light foam concrete preparation method, includes the following steps: precast concrete slurries；The first foams are prepared after foaming agent is carried out the first dilution proportion, the first foamed concrete slurries are prepared by the first foams: preparing the second foams after foaming agent is carried out the second dilution proportion, the second foamed concrete slurries are prepared by the second foams: after the second foamed concrete slurries are injected mold to the first height, the first foamed concrete slurries are injected on the second foamed concrete slurries to forming height；Contoured foam concrete is sent into mark to support in room and is conserved, is demoulded after reaching curing time.Light foam concrete preparation method through the invention, can make pore-size distribution more uniform, to improve light foam concrete performance.
Description
Technical field
The present invention relates to the preparations of concrete, are the light foam coagulation of 1/50 content of B28B more particularly, to classification number
Native preparation method.
Background technique
Foam concrete also known as foamed concrete are a kind of novel energy saving and environment friendly construction materials, foam concrete
Key property has: lightweight, thermal and insulating performance are good, sound-proof refractory performance is good, waterproof performance is strong, good environmental protection etc..To make
Foam concrete is possible to be applied to the inefficient occasion required with property of some normal concretes.
There is no heavy coarse aggregate in foam concrete, and considerable part volume is occupied by bubble, shows it significantly
Lightweight nature, thus interior wall material and other non bearing structure material of the foam concrete especially suitable for skyscraper,
To efficiently reduce the self weight of high-rise.The a large amount of bubbles for including in foam concrete, assign its low thermal coefficient and
Good sound insulation value, thus especially suitable for recording studio, broadcasting studio and video display product workshop etc. to the higher field of sound isolation requirement
It closes；And its is heat-insulated, fire prevention, heat preservation property, then make it particularly suited for cold district or hot area's building construction wall or
Roof Material, to improve energy efficiency.The porous low strong and low elastic modulus characteristic of hardened foam concrete, can keep
Entirety between adjacent material around contacts, and absorbs and disperse well the stress that extraneous load generates, thus particularly suitable
In the packing material being used as between express highway roadbed or large-scale building structures.So the device provides, as it were, foam concrete is a kind of
The friendly profile material of environment for meeting modern architecture feature and requirement of multifunctional and multipurpose.
The preparation process of foam concrete is usually foam mechanically to be made in foaming agent water solution, then foam is added
Enter into the slurry containing compositions such as siliceous material, calcareous material, water and various additives, through mixing, casting, molding, supports
It protects.Wherein, be added foam slurry be poured into die for molding during, bubble is in a mold suffered by different height
Pressure be different, under gravity, the pressure that the foam of mold bottom is subject to is bigger, leads to its compressive deformation more
Greatly, therefore the average pore size of molding foam concrete bottom can lead to hole as shown in fig. 1 less than the average pore size at top
Gap is unevenly distributed；Bottom average pore size is smaller and foam concrete density is caused to increase, and top average pore size is larger causes
The strength reduction of foam concrete, to influence the overall performance of foam concrete.
Summary of the invention
The purpose of the present invention is the preparation methods by using a kind of improved light foam concrete, to solve above-mentioned mention
The difficulty arrived provides pore-size distribution more uniform foam concrete.
Production technology according to the invention, light foam concrete preparation method include the following steps: (1) precast concrete
Slurries: material and water are added in agitating device and are stirred as concrete slurry；(2) the first foams are prepared: by foaming agent
It is configured to foaming agent water solution after carrying out the first dilution proportion with water, foaming is carried out by foaming machine and forms the first foams；(3)
It prepares the first foamed concrete slurries: the first foams being added in concrete slurry and are sufficiently stirred, the first foaming coagulation is obtained
Soil paste liquid；(4) the second foams are prepared: being configured to foaming agent water solution after foaming agent and water are carried out the second dilution proportion, leads to
It crosses foaming machine and carries out foaming the second foams of formation；Wherein the foaming agent water solution after second dilution proportion is formed by bubble
The average pore size of foam concrete is greater than being averaged for the foam concrete of the foaming agent water solution formation after first dilution proportion
Aperture；(5) the second foamed concrete slurries are prepared: the second foams being added in concrete slurry and are sufficiently stirred, obtain second
Foamed concrete slurries；(6) moulding by casting: after the second foamed concrete slurries are injected mold to the first height, in the second hair
The first foamed concrete slurries are injected to forming height on bubble concrete slurry；(7) maintenance demoulding: contoured foam concrete is sent
Enter to mark to support and be conserved in room, is demoulded after reaching curing time.
Preferably, the foaming agent water solution after second dilution proportion be formed by the average pore size of foam concrete with
The ratio between the average pore size of foam concrete that foaming agent water solution after first dilution proportion is formed is 1.2 ~ 1.3.
It is preferable that the average pore size is determined according to such as under type, it is prepared into using the foaming agent water solution of single ratio
After type foamed concrete, foamed concrete is cut along vertical section, vertical section image is obtained by scanning electron microscope, it is true according to image
Its fixed average pore size.
Preferably, first ratio and the second ratio value are determined by specific experiment.
Preferably, the first height described in the step (6) is the half of the forming height.
Preferably, the first height described in the step (6) is the 50% ~ 70% of the forming height.
Preferably, in the step (1), the material includes cement, flyash and fine sand.
Preferably, the foaming agent is rosin foaming agent, synthesizes class foaming agent, protide foaming agent or complex class hair
Infusion.
Detailed description of the invention
Fig. 1 is the aperture schematic diagram of prior art foam concrete different height.
Fig. 2 is the foam concrete preparation flow figure of the embodiment of the present invention.
Referring to following description and drawings, it will be clear that these and other aspects of the embodiment of the present invention.In these descriptions
In attached drawing, some particular implementations in the embodiment of the present invention are specifically disclosed, to indicate to implement implementation of the invention
Some modes of the principle of example, but it is to be understood that the scope of embodiments of the invention is not limited.On the contrary, of the invention
Embodiment includes all changes, modification and the equivalent fallen within the scope of the spirit and intension of attached claims.
The light foam concrete preparation method of the embodiment of the present invention includes the following steps: referring to fig. 2
Precast concrete slurries: material and water are added in agitating device and are stirred as concrete slurry.Wherein, material is system
Material used in standby light foam concrete, may include cement, flyash and fine sand, cement can be normal silicate
Cement or grinding fine cement clinker.
It prepares the first foams: being configured to foaming agent water solution after foaming agent and water are carried out the first dilution proportion, pass through
Foaming machine carries out foaming and forms the first foams.After having prepared the first foams, the first foamed concrete slurries are prepared: by the
One foams are added in concrete slurry and are sufficiently stirred, and obtain the first foamed concrete slurries.
It prepares the second foams: being configured to foaming agent water solution after foaming agent and water are carried out the second dilution proportion, pass through
Foaming machine carries out foaming and forms the second foams；Wherein the foaming agent water solution after second dilution proportion is formed by foam
The average pore size of concrete is greater than the average hole of the foam concrete of the foaming agent water solution formation after first dilution proportion
Diameter.After preparation finishes the second foams, the second foamed concrete slurries are prepared: the second foams are added in concrete slurry
It is sufficiently stirred, obtains the second foamed concrete slurries.
In above-mentioned steps, the first foams of preparation are sequencing with the step of the first foamed concrete slurries of preparation；System
The step of the second foamed concrete slurries of standby second foams and preparation is sequencing；And prepare the first foams and the second bubble
Foam body, the first foamed concrete slurries of preparation and the sequence for preparing the second foamed concrete slurries can be sequencing, can also
To be to carry out simultaneously, the second foams and the second foamed concrete can also be first prepared, it is rear to prepare the first foams and the first hair
Steep concrete.
In above-mentioned steps, foaming agent can be foaming agent well known in the prior art, can be rosin foaming agent, synthesis
Class foaming agent, protide foaming agent or complex class foaming agent.The extension rate of first ratio and the second ratio can be 20 ~ 40
By between, determined according to used foaming agent type.The occurrence of first ratio and the second ratio can pass through specific experiment
It determines and predefines: after the foaming agent water solution preparation molding foamed concrete of single ratio, by foamed concrete along perpendicular
Section is cut, and is obtained vertical section image by scanning electron microscope, is determined its average pore size according to image, so that it is determined that different foaming agents
The corresponding average pore size of extension rate；Foaming agent water solution after can choose such as the second dilution proportion is formed by foam
The ratio between the average pore size of foam concrete that foaming agent water solution after the average pore size of concrete and the first dilution proportion is formed
It is 1.2 ~ 1.3.
Moulding by casting: it after the second foamed concrete slurries are injected mold to the first height, is starched in the second foamed concrete
The first foamed concrete slurries are injected on liquid to forming height.Wherein, the first height can be the 50% ~ 70% of forming height, excellent
Choosing, the first height is the half of the forming height.Since the average pore size in the second foamed concrete slurries is larger, by
The aperture formed after reducing when to pressure is consistent with lesser aperture in the first foamed concrete slurries of top, to make generation
The pore size of foam concrete is more uniform, so as to improve concrete performance.
Maintenance demoulding: pouring molding foam concrete is sent into the feeding room of mark and is conserved, is demoulded after reaching curing time.
After demoulding, the foam concrete after preparation can be cut into different size of concrete block according to engineering demand makes
With.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.This hair
Particular features, structures, materials, or characteristics described in bright can be in any one or more of the embodiments or examples with suitable
Mode combines.In addition, without conflicting with each other, those skilled in the art can be by difference described in this specification
The feature of embodiment or example and different embodiments or examples is combined.It is all the spirit and principles in the present invention it
Interior any modification, equivalent replacement, improvement and so on, are included within the scope of protection of the present invention.
Claims (8)
1. a kind of light foam concrete preparation method includes the following steps: (1) precast concrete slurries: material and water is added
Enter and is stirred in agitating device as concrete slurry；(2) prepare the first foams: it is dilute that foaming agent and water are carried out the first ratio
It is configured to foaming agent water solution after releasing, foaming is carried out by foaming machine and forms the first foams；(3) the first foamed concrete is prepared
Slurries: the first foams are added in concrete slurry and are sufficiently stirred, the first foamed concrete slurries are obtained；(4) second is prepared
Foams: it is configured to foaming agent water solution after foaming agent and water are carried out the second dilution proportion, foaming shape is carried out by foaming machine
At the second foams；Wherein the foaming agent water solution after second dilution proportion is formed by the average pore size of foam concrete
Greater than the average pore size for the foam concrete that the foaming agent water solution after first dilution proportion is formed；(5) the second hair of preparation
Bubble concrete slurry: the second foams are added in concrete slurry and are sufficiently stirred, the second foamed concrete slurries are obtained；(6)
Moulding by casting: it after the second foamed concrete slurries are injected mold to the first height, is injected on the second foamed concrete slurries
First foamed concrete slurries are to forming height；(7) maintenance demoulding: contoured foam concrete is sent into the feeding room of mark and is conserved, is reached
It is demoulded after to curing time.
2. light foam concrete preparation method according to claim 1, it is characterised in that: after second dilution proportion
Foaming agent water solution be formed by foam concrete average pore size and first dilution proportion after foaming agent water solution
The ratio between average pore size of foam concrete of formation is 1.2 ~ 1.3.
3. light foam concrete preparation method according to claim 2, it is characterised in that: the step (2) and step
(4), step (3) and step (5) can carry out simultaneously.
4. light foam concrete preparation method according to claim 3, it is characterised in that: first ratio and
Two ratio values are determined by specific experiment.
5. foam concrete preparation method according to claim 4, it is characterised in that: first described in the step (6)
Height is the half of the forming height.
6. light foam concrete preparation method according to claim 5, it is characterised in that: described in the step (6)
First height is about the 50% ~ 70% of the forming height.
7. light foam concrete preparation method according to claim 6, it is characterised in that: described in the step (1)
Material includes cement, flyash and fine sand.
8. light foam concrete preparation method according to claim 7, it is characterised in that: the foaming agent is rosin
Foaming agent synthesizes class foaming agent, protide foaming agent or complex class foaming agent etc..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910819452.5A CN110451861B (en) | 2019-08-31 | 2019-08-31 | Preparation method of light foam concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910819452.5A CN110451861B (en) | 2019-08-31 | 2019-08-31 | Preparation method of light foam concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110451861A true CN110451861A (en) | 2019-11-15 |
| CN110451861B CN110451861B (en) | 2022-02-08 |
Family
ID=68490226
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|---|---|---|---|
| CN201910819452.5A Active CN110451861B (en) | 2019-08-31 | 2019-08-31 | Preparation method of light foam concrete |
Country Status (1)
| Country | Link |
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| CN (1) | CN110451861B (en) |
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|---|---|---|---|---|
| CN101497533A (en) * | 2009-02-27 | 2009-08-05 | 中国科学院武汉岩土力学研究所 | Foam concrete and preparing process thereof |
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-
2019
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| CN110451861B (en) | 2022-02-08 |
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