CN102746020A - Preparation raw material and preparation method of microporous cement concrete building block - Google Patents
Preparation raw material and preparation method of microporous cement concrete building block Download PDFInfo
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- CN102746020A CN102746020A CN2012102333077A CN201210233307A CN102746020A CN 102746020 A CN102746020 A CN 102746020A CN 2012102333077 A CN2012102333077 A CN 2012102333077A CN 201210233307 A CN201210233307 A CN 201210233307A CN 102746020 A CN102746020 A CN 102746020A
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Abstract
The invention relates to a preparation raw material and preparation method of a microporous cement concrete building block. The preparation raw material comprises the following components in percentage by weight: 15-60% of haydite, 10-40% of sand, 10-25% of fly ash, 10-15% of cement, 2-10% of powdered ore, 1-3% of silicon ash, 3-10% of water, 0.5-1.8% of foaming agent solution and 0.3-2% of admixture. The preparation method comprises the following steps: sequentially superposing coal ash, the cement, powdered ore and silicon ash from bottom to top, and mixing with the haydite, sand, water and admixture in a mixer; adding the foaming agent, stirring and mixing; and finally, adding into a die, solidifying, stripping and curing by autoclaving. The micropores in the building block have low porosity and small diameter; the haydite, fly ash, powdered ore and silicon ash are also filled into capillary bores in the cement; and thus, the building block has the advantages of low water absorptivity and high impermeability. The invention solves the problems of hollowing, shedding, water seepage and the like in the wall surface due to wetting expansion, drying shrinkage or surface sandiness.
Description
[technical field]
The invention belongs to cement concrete building block technique field, relate to a kind of preparation raw material and preparation method of little pore coagulating cement earth building blocks.
[background technology]
Because the coagulating cement earth building blocks both can be protected land resources and ecotope, need not fire again, therefore progressively replace traditional common brick as a kind of emerging construction material, and meet national policy, be widely used at present.But its inner pore percentage of open area height and diameter of existing coagulating cement earth building blocks (comprising cement block and aerated-block) is bigger on the market, and water-intake rate is high; Anti-permeability performance is poor, and the inner easy fracture of metope causes that the ash that falls is with loose; Even often occur because of building block make moist metope hollowing that expansions, dry post shrinkage or surperficial sandyization cause, come off, problem such as infiltration, construction quality is poor, causes usually need turning over the worker after the construction work end, reforming; Prolong construction period, the client has been impacted, also caused a large amount of wastes simultaneously; Not environmental protection pollutes environment.
[summary of the invention]
The above-mentioned technical problem of the present invention for solving; Provide a kind of and produced that to have little pore percentage of open area low and diameter is minimum, anti-permeability performance is strong, water-intake rate is low; Can be because of the expansion of making moist, dry post shrinkage or surperficial sandyization do not cause the metope hollowing, come off and the preparation raw material and the preparation method of the coagulating cement earth building blocks of problem such as infiltration.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of preparation raw material of little pore coagulating cement earth building blocks, composition that comprises and weight percent are: haydite 15%～60%, sand 10%～40%, flyash 10%～25%, cement 10%～15%, breeze 2%～10%, silicon ash 1%～3%, water 3%～10%, foaming agent solution 0.5%～1.8% and admixture 0.3%～2%.
Further, said foaming agent solution is made up of 87% inorganic albumen, 5% chlorine, 4% iron and 2% sulphur, and said admixture is made up of 70% water, 21% sulphur, 7% sodium and 2% oxygen.
A kind of preparation method of little pore coagulating cement earth building blocks includes following steps:
A. flyash, cement, breeze and silicon ash are stacked from the bottom to top in proper order;
B. haydite, sand, flyash, cement, breeze, silicon ash, water and admixture are put into the stirrer uniform mixing, form mortar;
C. adding whipping agent stirs, mixes;
D. go into that mould solidifies and the demoulding;
E. steam and press sclerosis.
Further, said adding whipping agent stirs, mixes, and be specially: the foaming agent solution that will allocate concentration is injected in the foaming machine; The pressurized air that produces through foaming machine is compressed to foaming agent solution in the HTHP air, forms bubble, will add with the foaming agent solution of bubble in the stirrer through spray gun then; And at the uniform velocity continue to stir with mortar in the stirrer; Make the part bubble eruption, make mortar contain the foaming agent solution of corresponding weight percent, make bubble and mortar stable bond.
Further, saidly go into mould and solidify and the demoulding, be specially: the mortar that stirs is flowed in the die cavity, and its surface smeared send into maintenance certain hour in the fixed temperature and humidity maintenance pond after coarse, make cement reach coagulated state, carry out the demoulding at last.
Further, said steaming presses sclerosis to be specially: building block after the demoulding is sent into steamed the pressure certain hour in the autoclave, make the building block sclerosis of coagulated state.
Further, said compressed-air actuated pressure is 0.4Mpa～0.6Mpa, and the pressure of said HTHP air is 0.7Mpa～1.2Mpa.
Further, the said foaming agent solution concentration of having allocated is 7%～18%, and said at the uniform velocity lasting churning time is 30 seconds～180 seconds, and the diameter of said bubble is 0.01mm～3mm.
Further, said haydite, sand, flyash, cement, silicon ash, water and admixture are put into the mixed uniformly stirring velocity of stirrer is 15 rev/mins～55 rev/mins, and churning time is 1 minute～5 minutes.
Further; The speed that said mortar flows in the die cavity is 2m/s～8 m/s; The temperature in said fixed temperature and humidity maintenance pond is 30 ℃～80 ℃, and humidity is 50～100%, and said curing time is 6 hours～24 hours; Pressure in the said autoclave is 0.7 Mpa～1.8Mpa, and the still pressure time is 5 hours～18 hours.
The invention has the beneficial effects as follows:
The present invention passes through technique scheme; It is independent, stable, even to produce inner little pore; And little hole diameter is merely the building block of 0.01mm～3mm, and the minimum little pore of diameter makes the building block water-intake rate extremely low, and anti-permeability performance is strong; Avoided because the metope internal break produces ash and the loose puzzlement that brings to construction work; And after order stacked from the bottom to top with flyash, cement, breeze and silicon ash, it was even relatively to absorb water between each powder, helps reducing the percentage of open area of little pore coagulating cement earth building blocks; Add through powders such as haydite, flyash, breeze, silicon ashes, the pore in the cement has been played filling effect, the building block water-intake rate is reduced, through hydraulic ejection, make block surfaces Paint Gloss, contact angle is bigger, reduces the infiltration situation.Efficiently solve the building block that exists in the art at present for a long time because of the expansion of making moist, dry post shrinkage or surperficial sandyization cause the metope hollowing, come off and problem such as infiltration, construction process is more simplified, and construction quality is better, and the client is more satisfied.
In addition, main raw material of the present invention adopts the flyash of industrial waste wood in a large number, has both solved the handling problems of flyash, saves corresponding expense, can turn waste into wealth again, reaches the purpose of energy-conserving and environment-protective and recycle.
[description of drawings]
Fig. 1 is the preparing method's of a little pore coagulating cement earth building blocks of the present invention schema.
[embodiment]
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
A kind of preparation raw material of little pore coagulating cement earth building blocks, composition that comprises and weight percent are: haydite 15%～60%, sand 10%～40%, flyash 10%～25%, cement 10%～15%, breeze 2%～10%, silicon ash 1%～3%, water 3%～10%, foaming agent solution 0.5%～1.8% and admixture 0.3%～2%; Wherein, said foaming agent solution is made up of 87% inorganic albumen, 5% chlorine, 4% iron and 2% sulphur, and said admixture is made up of 70% water, 21% sulphur, 7% sodium and 2% oxygen.
As shown in Figure 1, the preparation method of little pore coagulating cement earth building blocks of the present invention includes following steps:
Steps A. flyash, cement, breeze and silicon ash are stacked from the bottom to top in proper order;
Step B. puts into the stirrer uniform mixing with haydite, sand, flyash, cement, breeze, silicon ash, water and admixture, forms mortar;
Step C. adds whipping agent to be stirred, mixes;
Step D. goes into that mould solidifies and the demoulding;
Step e. steam and press sclerosis.
Wherein, Said haydite, sand, flyash, cement, breeze, silicon ash, water and admixture are put into the stirrer uniform mixing, form mortar, specifically can for: according to aforementioned each self-corresponding weight percent; Haydite, sand, flyash, cement, breeze, silicon ash, water and admixture are put into stirrer; Being 15 rev/mins～55 rev/mins with stirring velocity is to stir in 1 minute～5 minutes with churning time, makes its full and uniform mixing, forms mortar.
Said adding whipping agent stirs, mixes; Specifically can for: will allocate concentration and be 7%～18% foaming agent solution and be injected in the foaming machine; The pressure that produces through foaming machine be the pressurized air of 0.4Mpa～0.6Mpa foaming agent solution is compressed to pressure is in 0.7Mpa～1.2Mpa HTHP air, formations diameter is 0.01 mm～3mm bubble, then through spray gun will foaming agent solution adding stirrer with bubble in; And at the uniform velocity continue to stir 30 seconds～180 seconds with mortar in the stirrer; Make the part bubble eruption, make mortar contain the foaming agent solution of 0.5%～1.8% weight percent, make bubble and mortar stable bond.
Saidly go into mould and solidify and the demoulding; Specifically can for: the speed of the mortar that stirs with 2m/s～8 m/s is flowed in the die cavity; And its surface smeared into send into temperature behind roughness Ra25～Ra100 to be 30 ℃～80 ℃ be maintenance 6 hours～24 hours in 50～100% the fixed temperature and humidity maintenance pond with humidity; Make cement reach coagulated state, adopt the hydraulic ejection mode at last, guarantee that block surfaces is Paint Gloss.
Said steaming press sclerosis specifically can for: building block after the demoulding sent into to steam in the autoclave that internal pressure is 0.7 Mpa～1.8Mpa pressed 5 hours～18 hours, make the building block sclerosis of coagulated state.
Like this; According to the preparation raw material and the preparation method of little pore coagulating cement earth building blocks of the present invention, it is independent, stable, even to produce inner little pore, and little hole diameter is merely the building block of 0.01mm～3mm; The minimum little pore of diameter makes the building block water-intake rate extremely low; Anti-permeability performance is strong, avoided since the metope internal break produce the ash with the loose puzzlement that brings to construction work, and with flyash, cement, breeze and silicon ash from the bottom to top the order stack after; It is even relatively to absorb water between each powder, helps reducing the percentage of open area of little pore coagulating cement earth building blocks; Add, through powders such as haydite, flyash, breeze, silicon ashes, the pore in the cement has been played filling effect, the building block water-intake rate is reduced, through hydraulic ejection, make block surfaces Paint Gloss, contact angle is bigger, reduces the infiltration situation.Efficiently solve the building block that exists in the art at present for a long time because of the expansion of making moist, dry post shrinkage or surperficial sandyization cause the metope hollowing, come off and problem such as infiltration, construction process is more simplified, and construction quality is better, and the client is more satisfied.
In addition, main raw material of the present invention adopts the flyash of industrial waste wood in a large number, has both solved the handling problems of flyash, saves corresponding expense, can turn waste into wealth again, reaches the purpose of energy-conserving and environment-protective and recycle.
Below in conjunction with several embodiment the preparation raw material and the preparation method of little pore coagulating cement earth building blocks of the present invention are further described.
Embodiment one:
Preparation raw material with little pore coagulating cement earth building blocks of the present invention; Composition that it comprises and weight percent are: haydite 60%, sand 10%, flyash 10%, cement 10%, breeze 5%, silicon ash 1%, water 3%, foaming agent solution 0.5% and admixture 0.5%; According to preparation method of the present invention; At first flyash, cement, breeze and silicon ash are stacked from the bottom to top in proper order, and put into stirrer in the lump with haydite, sand, water and admixture and mix; Adding whipping agent then stirs, mixes; Go at last that mould solidifies, the demoulding and steaming press sclerosis; Produce and have that little hole diameter is minimum, anti-permeability performance is strong, water-intake rate is low; Can be because of the expansion of making moist, dry post shrinkage or surperficial sandyization do not cause the metope hollowing, come off and the coagulating cement earth building blocks of problem such as infiltration.
Embodiment two:
Preparation raw material with little pore coagulating cement earth building blocks of the present invention; Composition that it comprises and weight percent are: haydite 15%, sand 40%, flyash 10%, cement 10%, breeze 10%, silicon ash 3%, water 10%, foaming agent solution 0.5% and admixture 1.5%; According to preparation method of the present invention; At first flyash, cement, breeze and silicon ash are stacked from the bottom to top in proper order, and put into stirrer in the lump with haydite, sand, water and admixture and mix; Adding whipping agent then stirs, mixes; Go at last that mould solidifies, the demoulding and steaming press sclerosis; Produce and have that little hole diameter is minimum, anti-permeability performance is strong, water-intake rate is low; Can be because of the expansion of making moist, dry post shrinkage or surperficial sandyization do not cause the metope hollowing, come off and the coagulating cement earth building blocks of problem such as infiltration.
Embodiment three:
Preparation raw material with little pore coagulating cement earth building blocks of the present invention; Composition that it comprises and weight percent are: haydite 37.5%, sand 25%, flyash 10%, cement 10%, breeze 7%, silicon ash 3%, water 5%, foaming agent solution 1 % and admixture 1.5%; According to preparation method of the present invention; At first flyash, cement, breeze and silicon ash are stacked from the bottom to top in proper order, and put into stirrer in the lump with haydite, sand, water and admixture and mix; Adding whipping agent then stirs, mixes; Go at last that mould solidifies, the demoulding and steaming press sclerosis; Produce and have that little hole diameter is minimum, anti-permeability performance is strong, water-intake rate is low; Can be because of the expansion of making moist, dry post shrinkage or surperficial sandyization do not cause the metope hollowing, come off and the coagulating cement earth building blocks of problem such as infiltration.
Above content is to combine concrete optimal technical scheme to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (10)
1. the preparation raw material of a little pore coagulating cement earth building blocks; It is characterized in that composition that this building block comprises and weight percent are: haydite 15%～60%, sand 10%～40%, flyash 10%～25%, cement 10%～15%, breeze 2%～10%, silicon ash 1%～3%, water 3%～10%, foaming agent solution 0.5%～1.8% and admixture 0.3%～2%.
2. preparation raw material according to claim 2 is characterized in that, said foaming agent solution is made up of 87% inorganic albumen, 5% chlorine, 4% iron and 2% sulphur, and said admixture is made up of 70% water, 21% sulphur, 7% sodium and 2% oxygen.
3. the preparation method of a little pore coagulating cement earth building blocks is characterized in that, includes following steps:
A. flyash, cement, breeze and silicon ash are stacked from the bottom to top in proper order;
B. haydite, sand, flyash, cement, breeze, silicon ash, water and admixture are put into the stirrer uniform mixing, form mortar;
C. adding whipping agent stirs, mixes;
D. go into that mould solidifies and the demoulding;
E. steam and press sclerosis.
4. preparation method according to claim 3 is characterized in that, said adding whipping agent stirs, mixes; Be specially: the foaming agent solution that will allocate concentration is injected in the foaming machine; The pressurized air that produces through foaming machine is compressed to foaming agent solution in the HTHP air, forms bubble, will add with the foaming agent solution of bubble in the stirrer through spray gun then; And at the uniform velocity continue to stir with mortar in the stirrer; Make the part bubble eruption, make mortar contain the foaming agent solution of corresponding weight percent, make bubble and mortar stable bond.
5. preparation method according to claim 4; It is characterized in that; Saidly go into mould and solidify and the demoulding, be specially: the mortar that stirs is flowed in the die cavity, and its surface smeared send into maintenance certain hour in the fixed temperature and humidity maintenance pond after coarse; Make cement reach coagulated state, carry out the demoulding at last.
6. preparation method according to claim 5 is characterized in that, said steaming presses sclerosis to be specially: building block after the demoulding is sent into steamed the pressure certain hour in the autoclave, make the building block sclerosis of coagulated state.
7. according to any one described preparation method in the claim 4 to 6, it is characterized in that said compressed-air actuated pressure is 0.4Mpa～0.6Mpa, the pressure of said HTHP air is 0.7Mpa～1.2Mpa.
8. preparation method according to claim 7 is characterized in that, the said foaming agent solution concentration of having allocated is 7%～18%, and said at the uniform velocity lasting churning time is 30 seconds～180 seconds, and the diameter of said bubble is 0.01mm～3mm.
9. according to any one described preparation method in the claim 3 to 6; It is characterized in that; Said haydite, sand, flyash, cement, silicon ash, water and admixture are put into the mixed uniformly stirring velocity of stirrer is 15 rev/mins～55 rev/mins, and churning time is 1 minute～5 minutes.
10. according to claim 5 or 6 described preparing methods; It is characterized in that the speed that said mortar flows in the die cavity is 2m/s～8 m/s, the temperature in said fixed temperature and humidity maintenance pond is 30 ℃～80 ℃; Humidity is 50～100%; Said curing time is 6 hours～24 hours, and the pressure in the said autoclave is 0.7 Mpa～1.8Mpa, and the still pressure time is 5 hours～18 hours.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103043967A (en) * | 2012-12-25 | 2013-04-17 | 天津市裕川微生物制品有限公司 | Lightweight autoclaved foam concrete block and production method thereof |
| CN114290531A (en) * | 2022-01-24 | 2022-04-08 | 太原理工大学 | Rapid prewetting device and process for ceramsite with high-efficiency water absorption |
Citations (1)
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| CN101913900A (en) * | 2010-08-26 | 2010-12-15 | 成都西亚科技发展有限公司 | Foam concrete and preparation method |
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2012
- 2012-07-06 CN CN2012102333077A patent/CN102746020A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913900A (en) * | 2010-08-26 | 2010-12-15 | 成都西亚科技发展有限公司 | Foam concrete and preparation method |
Non-Patent Citations (2)
| Title |
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| 权凯等: "《农区肉羊场涉及与建设》", 31 January 2010, 金盾出版社 * |
| 江正荣等: "《简明施工手册》", 31 May 2005, 中国建筑工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103043967A (en) * | 2012-12-25 | 2013-04-17 | 天津市裕川微生物制品有限公司 | Lightweight autoclaved foam concrete block and production method thereof |
| CN114290531A (en) * | 2022-01-24 | 2022-04-08 | 太原理工大学 | Rapid prewetting device and process for ceramsite with high-efficiency water absorption |
| CN114290531B (en) * | 2022-01-24 | 2024-02-09 | 太原理工大学 | Rapid prewetting device and process with efficient water-absorbing ceramsite |
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Application publication date: 20121024 |