CN108373313A - A kind of preparation method of air entrained concrete - Google Patents
A kind of preparation method of air entrained concrete Download PDFInfo
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- CN108373313A CN108373313A CN201810290578.3A CN201810290578A CN108373313A CN 108373313 A CN108373313 A CN 108373313A CN 201810290578 A CN201810290578 A CN 201810290578A CN 108373313 A CN108373313 A CN 108373313A
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- air entrained
- entrained concrete
- mass ratio
- preparation
- mill
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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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention discloses a kind of preparation methods of air entrained concrete, belong to building material field.The present invention takes carclazyte to be put into ball milling in ball mill with oxalic acid crystal, is sieved, and collects sieving particle, sieving particle and rosin is carried out ultrasonic vibration, then stand, crushed, collects crushed material；Crushed material, flyash and conditioning agent are put into grinding mill and milled, object of milling is collected, will mill object, cement, quartz sand and additive are uniformly mixed, and collect mixture；Water, compound are stirred evenly, and heated, is cooled to room temperature, heating mixture is collected；Mixture, heating mixture, water-reducing agent, tannin extract and acetylcysteine are taken, is stirred, is put into mold, stand, demoulding, and be put into steam press maintenance in still kettle heats up, and natural cooling cooling is to get to air entrained concrete.The present invention is prepared into the intensity that air entrained concrete effectively raises air entrained concrete, can be more widely used.
Description
Technical field
The invention belongs to building material technical fields, and in particular to a kind of preparation method of air entrained concrete.
Background technology
Air entrained concrete is introduced greatly using chemical gas generation method for basic composition material with calcareous material and siliceous material
Bubble is measured, the green body of porous structure is formed, what is obtained after autoclave a few hours is porous with some strength
Materials for wall.Have the characteristics that light weight, good heat insulating, machinability are strong, fire protecting performance is excellent, and due to technology at
Ripe, performance is stablized, and is a kind of current single materials for wall that can reach 50% building energy conservation requirement few in number, extensive
Applied in energy saving building, and will be paid attention in the future for a long period of time by people.Air entrained concrete is also a kind of simultaneously
Stomata uniformly, surfacing, neat, easy construction the light energy conservation of corner angle novel wall material, have lightweight, heat preservation, every
The features such as hot, non-ignitable.Mainly using flyash, sand or other industrial residues as raw material（65% or more volume）, through feedstock processing,
Dispensing such as stirs, gets angry, cutting, conserving at the product made of techniques, can be used for replacing traditional clay brick, is used for building wall,
Bulk density is the one third of clay brick, and heat-insulating property is 3~4 times of clay brick, and sound insulation value is the 2 of clay brick
Times, anti-permeability performance is 1 times of clay brick or more, and the masonry strength of building block is about the 80% of building block self-strength（Common brick is 30%）,
It is a kind of good construction material with energy-saving heat preserving function.
Air entrained concrete has sand-lime-cement, slag-lime-cement, fly ashlime-cement, tailing at present
The raw materials series of products such as slag-lime-cement, gangue-lime-cement, since the primary raw material of air entrained concrete is using industry
Tailings, thus have the advantages that save natural resources, without geographical restrictions it is easy to spread, can be with large-scale production.But aerating is mixed
Solidifying soil intensity is low, can be only used for the building enclosure and the following bearing wall material of three-storey building of non-bearing, makes its application range
It is significantly limited.
Invention content
The technical problems to be solved by the invention：It is low for the intensity of current air entrained concrete, cause application range limited
The problem of, the present invention provides a kind of preparation methods of air entrained concrete.
In order to solve the above technical problems, the present invention is using technical solution as described below：
A kind of preparation method of air entrained concrete, the preparation method include the following steps：
（1）In mass ratio 1:8~10, it takes carclazyte to be put into ball mill with oxalic acid crystal and carries out ball milling, be sieved, collect sieving
Grain, by sieving particle and rosin in mass ratio 1:4~6 carry out ultrasonic vibration, then are stood at -20~-15 DEG C, crush, and collect
Crushed material；
（2）By crushed material, flyash and conditioning agent in mass ratio 2:11~13:1~3 is put into grinding mill and mills, and collects
It mills object, will mill object, cement, quartz sand and additive in mass ratio 5~7：2:1:0.3~0.5 is uniformly mixed, and collects mixing
Object, it is spare；
（3）By water, compound in mass ratio 17~20:1 stirs evenly, and is heated at 60~70 DEG C, and cooling room temperature is received
Collection heating mixture；
（4）According to the mass fraction, 70~80 parts of steps are taken（2）Preliminary mixture, 35~40 parts heating mixtures, 0.8~1.2 part
Water-reducing agent, 7~9 parts of tannin extracts and 1~3 part of acetylcysteine, are stirred, are put into mold, be placed at 60 DEG C stand 8~
10h, demoulding, and it is put into steam press maintenance in still kettle, it is 170~180 DEG C to set pressure to reach 1.3~1.4MPa, temperature, from
It so cools to get to air entrained concrete.
The step（2）Middle conditioning agent is gypsum, diatom ooze in mass ratio 9:1 mixes.
The step（2）In additive be silica gel.
The step（3）Middle compound is by aluminium powder and citrate of magnesia in mass ratio 7:1 mixes.
The step（4）Middle water-reducing agent is polycarboxylic acids dehydragent.
Compared with other methods, advantageous effects are the present invention：
（1）The present invention is that it is mixed to form aerating in traditional raw material using traditional raw material flyash, gypsum, cement, aluminium powder as basic body
During solidifying soil, the present invention uses carclazyte as carrier, loads oxalic acid crystal, is wrapped up with rosin, in maintenance processes,
Rosin forms liquid, increases and heats mixed mobility, so that it is preferably carried out internal progress flow distribution, and aluminium carries out
During gas making, discharge heat, oxalic acid crystal is heated to carry out gasification decomposition, further carries out aerating, and with calcium hydroxide into
Row reaction, forms calcium oxalate, and the calcium oxalate of formation carries out crystal growth in duct, and the mechanics for improving air entrained concrete is strong
Degree blocks the stomata of formation in order to avoid crystal increases, therefore citrate of magnesia is added as crystal conditioning agent, avoids
The too fast growth of crystal, while the carclazyte being added is filled the macropore of crossing of generation, it is therefore prevented that the avalanche in channel improves
The mechanical strength of air entrained concrete；
（2）The present invention is also added into diatom ooze, and one side diatom ooze can be adsorbed on generated noxious material in preparation process,
The destruction to human body and environment is avoided, the overall performance of air entrained concrete on the other hand can be improved by diatom ooze, simultaneously also
Add tannin extract, using tannin extract increase raw material between bond strength, avoid cracking, and tannin extract also with extra free calcium from
Son is combined, and reticular structure is formed in duct, further improves the mechanical strength of air entrained concrete, effective solution
The intensity of air entrained concrete is low at present, the problem for causing application range limited.
Specific implementation mode
The preparation of conditioning agent：By gypsum, diatom ooze in mass ratio 9:1 mixes.
Additive is selected as silica gel.
Compound is formulated as aluminium powder and citrate of magnesia in mass ratio 7:1 mixes.
Water-reducing agent is selected as polycarboxylic acids dehydragent.
A kind of preparation method of air entrained concrete, the preparation method include the following steps：
（1）In mass ratio 1:8~10, it takes carclazyte to be put into ball mill with oxalic acid crystal and ball milling 2h is carried out with 900r/min, cross 500
Mesh sieves, and collects sieving particle, by sieving particle and rosin in mass ratio 1:4~6 carry out ultrasonic vibration 40min, then -20~-
3h is stood at 15 DEG C, is crushed with 500r/min, crushed material is collected；
（2）By crushed material, flyash and conditioning agent in mass ratio 2:11~13:1~3 is put into grinding mill and is carried out with 700r/min
Mill 70min, collects object of milling, will mill object, cement, quartz sand and additive in mass ratio 5~7：2:1:0.3~0.5 is mixed
Uniform, collection mixture is closed, it is spare；
（3）By water, compound in mass ratio 17~20:1 stirs evenly, and heating 50min is carried out at 60~70 DEG C, is cooled to
Room temperature collects heating mixture；
（4）According to the mass fraction, 70~80 parts of steps are taken（2）Preliminary mixture, 35~40 parts heating mixtures, 0.8~1.2 part
Water-reducing agent, 7~9 parts of tannin extracts and 1~3 part of acetylcysteine, are stirred, are put into mold, be placed at 60 DEG C stand 8~
10h, demoulding, and it is put into steam press maintenance in still kettle, pressure is set to reach 1.3~1.4MPa, and 170 are warming up in 1~2h
~180 DEG C, the cooling of 1~2h natural coolings is to get to air entrained concrete.
The preparation of conditioning agent：By gypsum, diatom ooze in mass ratio 9:1 mixes.
Additive is selected as silica gel.
Compound is formulated as aluminium powder and citrate of magnesia in mass ratio 7:1 mixes.
Water-reducing agent is selected as polycarboxylic acids dehydragent.
A kind of preparation method of air entrained concrete, the preparation method include the following steps：
（1）In mass ratio 1:8, it takes carclazyte to be put into ball mill with oxalic acid crystal and ball milling 2h is carried out with 900r/min, cross 500 mesh
Sieve collects sieving particle, by sieving particle and rosin in mass ratio 1:4 carry out ultrasonic vibration 40min, then are stood at -20 DEG C
3h is crushed with 500r/min, collects crushed material；
（2）By crushed material, flyash and conditioning agent in mass ratio 2:11:1 is put into grinding mill and is milled with 700r/min
70min collects object of milling, and will mill object, cement, quartz sand and additive in mass ratio 5：2:1:0.3 is uniformly mixed, and collects mixed
Object is closed, it is spare；
（3）By water, compound in mass ratio 17:1 stirs evenly, and heating 50min is carried out at 60 DEG C, is cooled to room temperature, and receives
Collection heating mixture；
（4）According to the mass fraction, 70 parts of steps are taken（2）Preliminary mixture, 35 portions of heating mixtures, 0.8 part of water-reducing agent, 7 portions of evergreen chinquapins
Glue and 1 part of acetylcysteine, are stirred, are put into mold, are placed at 60 DEG C and stand 8h, demoulding, and are put into still kettle
Middle steam press maintenance sets pressure to reach 1.3MPa, 170 DEG C is warming up in 1h, the cooling of 1h natural coolings is to get mixed to aerating
Solidifying soil.
The preparation of conditioning agent：By gypsum, diatom ooze in mass ratio 9:1 mixes.
Additive is selected as silica gel.
Compound is formulated as aluminium powder and citrate of magnesia in mass ratio 7:1 mixes.
Water-reducing agent is selected as polycarboxylic acids dehydragent.
A kind of preparation method of air entrained concrete, the preparation method include the following steps：
（1）In mass ratio 1:10, it takes carclazyte to be put into ball mill with oxalic acid crystal and ball milling 2h is carried out with 900r/min, cross 500 mesh
Sieve collects sieving particle, by sieving particle and rosin in mass ratio 1:6 carry out ultrasonic vibration 40min, then are stood at -15 DEG C
3h is crushed with 500r/min, collects crushed material；
（2）By crushed material, flyash and conditioning agent in mass ratio 2:13:3 are put into grinding mill and are milled with 700r/min
70min collects object of milling, and will mill object, cement, quartz sand and additive in mass ratio 7：2:1:0.5 is uniformly mixed, and collects mixed
Object is closed, it is spare；
（3）By water, compound in mass ratio 20:1 stirs evenly, and heating 50min is carried out at 70 DEG C, is cooled to room temperature, and receives
Collection heating mixture；
（4）According to the mass fraction, 80 parts of steps are taken（2）Preliminary mixture, 40 portions of heating mixtures, 1.2 parts of water-reducing agents, 9 portions of evergreen chinquapins
Glue and 3 parts of acetylcysteines, are stirred, are put into mold, are placed at 60 DEG C and stand 10h, demoulding, and are put into still kettle
Middle steam press maintenance sets pressure to reach 1.4MPa, 180 DEG C is warming up in 2h, the cooling of 2h natural coolings is to get mixed to aerating
Solidifying soil.
The preparation of conditioning agent：By gypsum, diatom ooze in mass ratio 9:1 mixes.
Additive is selected as silica gel.
Compound is formulated as aluminium powder and citrate of magnesia in mass ratio 7:1 mixes.
Water-reducing agent is selected as polycarboxylic acids dehydragent.
A kind of preparation method of air entrained concrete, the preparation method include the following steps：
（1）In mass ratio 1:9, it takes carclazyte to be put into ball mill with oxalic acid crystal and ball milling 2h is carried out with 900r/min, cross 500 mesh
Sieve collects sieving particle, by sieving particle and rosin in mass ratio 1:5 carry out ultrasonic vibration 40min, then are stood at -17 DEG C
3h is crushed with 500r/min, collects crushed material；
（2）By crushed material, flyash and conditioning agent in mass ratio 2:12:2 are put into grinding mill and are milled with 700r/min
70min collects object of milling, and will mill object, cement, quartz sand and additive in mass ratio 6：2:1:0.4 is uniformly mixed, and collects mixed
Object is closed, it is spare；
（3）By water, compound in mass ratio 18:1 stirs evenly, and heating 50min is carried out at 65 DEG C, is cooled to room temperature, and receives
Collection heating mixture；
（4）According to the mass fraction, 75 parts of steps are taken（2）Preliminary mixture, 37.5 portions of heating mixtures, 1 part of water-reducing agent, 8 portions of evergreen chinquapins
Glue and 2 parts of acetylcysteines, are stirred, are put into mold, are placed at 60 DEG C and stand 9h, demoulding, and are put into still kettle
Middle steam press maintenance sets pressure to reach 1.3MPa, is warming up to 175 DEG C in 1.5h, and the cooling of 1.5h natural coolings is to get to adding
Gas concrete.
Comparative example：The air entrained concrete of company of Wuhan City production.
The air entrained concrete of air entrained concrete and comparative example prepared by the above method is tested for the property, as a result such as table 1.
Table 1：
| Dry density kg/m3 | 493 | 495 | 496 | 312~322 |
| Compression strength Mpa | 4.6 | 4.8 | 4.6 | 2.7~2.9 |
| Drying shrinkage value（Express method）mm/m | 0.3 | 0.31 | 0.32 | 0.51~0.53 |
| Crack situation | Without cracking | Without cracking | Without cracking | One to two places slightly crack |
In summary, air entrained concrete intensity of the invention is high, does not crack, complies fully with requirement, is worth of widely use.
Claims (5)
1. a kind of preparation method of air entrained concrete, which is characterized in that the preparation method includes the following steps：
（1）In mass ratio 1:8~10, it takes carclazyte to be put into ball mill with oxalic acid crystal and carries out ball milling, be sieved, collect sieving
Grain, by sieving particle and rosin in mass ratio 1:4~6 carry out ultrasonic vibration, then are stood at -20~-15 DEG C, crush, and collect
Crushed material；
（2）By crushed material, flyash and conditioning agent in mass ratio 2:11~13:1~3 is put into grinding mill and mills, and collects
It mills object, will mill object, cement, quartz sand and additive in mass ratio 5~7：2:1:0.3~0.5 is uniformly mixed, and collects mixing
Object, it is spare；
（3）By water, compound in mass ratio 17~20:1 stirs evenly, and is heated at 60~70 DEG C, and cooling room temperature is received
Collection heating mixture；
（4）According to the mass fraction, 70~80 parts of steps are taken（2）Preliminary mixture, 35~40 parts heating mixtures, 0.8~1.2 part
Water-reducing agent, 7~9 parts of tannin extracts and 1~3 part of acetylcysteine, are stirred, are put into mold, be placed at 60 DEG C stand 8~
10h, demoulding, and it is put into steam press maintenance in still kettle, it is 170~180 DEG C to set pressure to reach 1.3~1.4MPa, temperature, from
It so cools to get to air entrained concrete.
2. the preparation method of air entrained concrete according to claim 1, which is characterized in that the step（2）Middle conditioning agent is
Gypsum, diatom ooze in mass ratio 9:1 mixes.
3. the preparation method of air entrained concrete according to claim 1, which is characterized in that the step（2）In additive
For silica gel.
4. the preparation method of air entrained concrete according to claim 1, which is characterized in that the step（3）Middle compound is
By aluminium powder and citrate of magnesia in mass ratio 7:1 mixes.
5. the preparation method of air entrained concrete according to claim 1, which is characterized in that the step（4）Middle water-reducing agent is
Polycarboxylic acids dehydragent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810290578.3A CN108373313A (en) | 2018-03-30 | 2018-03-30 | A kind of preparation method of air entrained concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810290578.3A CN108373313A (en) | 2018-03-30 | 2018-03-30 | A kind of preparation method of air entrained concrete |
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| Publication Number | Publication Date |
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| CN108373313A true CN108373313A (en) | 2018-08-07 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261600A (en) * | 1999-01-21 | 2000-08-02 | 徐君元 | Non-steam cured foamed concrete plate |
| US20070062143A1 (en) * | 2005-09-21 | 2007-03-22 | Noushad Rafie L | Construction products and method of making same |
| CN103332914A (en) * | 2013-05-30 | 2013-10-02 | 铜陵丰泽建材科技有限公司 | Diatomite-modified aerated concrete block and preparation method thereof |
| CN106380136A (en) * | 2016-08-25 | 2017-02-08 | 江西省建筑材料工业科学研究设计院 | Mortar special for autoclaved aerated concrete blocks |
| CN106396582A (en) * | 2015-07-27 | 2017-02-15 | 国网智能电网研究院 | Noise-reducing aerated concrete building block and preparation method thereof |
-
2018
- 2018-03-30 CN CN201810290578.3A patent/CN108373313A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261600A (en) * | 1999-01-21 | 2000-08-02 | 徐君元 | Non-steam cured foamed concrete plate |
| US20070062143A1 (en) * | 2005-09-21 | 2007-03-22 | Noushad Rafie L | Construction products and method of making same |
| CN103332914A (en) * | 2013-05-30 | 2013-10-02 | 铜陵丰泽建材科技有限公司 | Diatomite-modified aerated concrete block and preparation method thereof |
| CN106396582A (en) * | 2015-07-27 | 2017-02-15 | 国网智能电网研究院 | Noise-reducing aerated concrete building block and preparation method thereof |
| CN106380136A (en) * | 2016-08-25 | 2017-02-08 | 江西省建筑材料工业科学研究设计院 | Mortar special for autoclaved aerated concrete blocks |
Non-Patent Citations (2)
| Title |
|---|
| 戴振国等: "《建筑粘接密封技术》", 31 October 1981, 中国建筑工业出版社 * |
| 施昆山等: "《当代世界林业》", 30 November 2001, 中国林业出版社 * |
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