CN105503077A - Foaming cement and preparation method thereof - Google Patents
Foaming cement and preparation method thereof Download PDFInfo
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- CN105503077A CN105503077A CN201510961491.0A CN201510961491A CN105503077A CN 105503077 A CN105503077 A CN 105503077A CN 201510961491 A CN201510961491 A CN 201510961491A CN 105503077 A CN105503077 A CN 105503077A
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- China
- Prior art keywords
- foam cement
- cement
- metakaolin
- additive
- phosphoric acid
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
Abstract
The invention discloses foaming cement and a preparation method thereof. The foaming cement is prepared from ordinary portland cement, water, hydrogen peroxide, coal ash, calcium stearate, polypropyl fiber, metakaolin, phosphoric acid powder and calcium sulfate powder on the basis of parts by weight. The preparation method comprises the steps that all the raw materials are adopted, the ordinary portland cement, the coal ash, the polypropyl fiber, the metakaolin and the phosphoric acid powder are mixed and stirred, water is added, and continuous stirring is performed to obtain a primary material; the primary material is added into a foaming machine, the hydrogen peroxide, the calcium stearate, the calcium sulfate powder and additives are added, and stirring is performed to obtain the foaming cement. According to the foaming cement, the mutual effects of the ordinary portland cement, the metakaolin, the phosphoric acid powder and the additives are utilized, the stripping time and the solidification time of the foaming cement are shortened, the mass specific absorption of the foaming cement is decreased, the product quality is greatly improved, and the production efficiency is improved.
Description
Technical field
The invention belongs to field of inorganic nonmetallic material, be specifically related to a kind of foam cement and preparation method thereof.
Background technology
Foam cement is mechanically fully foamed by whipping agent by the foamed system of foaming machine, and by foam and grout Homogeneous phase mixing, then the pumping system through foaming machine carries out cast-in-place construction or mould molding, through a kind of novel light lagging material containing a large amount of sealed porosity that natural curing is formed.It belongs to air bubble-shaped thermal insulation material, and outstanding feature forms closed foam hole at inside concrete, makes concrete light and thermal insulation separation thermalization.Foam cement is used to manufacture thermal insulation layer, for roof heat insulation and exterior-wall heat insulation, substitute other lagging materials such as polystyrene (benzene plate), there is the adhesion property of unrivaled heat-insulating property and structural sheet, when also having convenient construction, environmental protection, joint, the various advantages such as synergy.Foam cement has the performances such as good thermal insulation, insulation, sound insulation, light carrying, is better than the lagging materials such as other light solid plastics fine perlite, haydite, asbestos productss, have easy and simple to handle, mechanization degree is high, when saving, saving of labor's feature.Adopt foam cement as roof heat insulation lagging material, make greatly to improve in conjunction with adhesion property between thermofin and floor basal plane.
At present, this technology has started in China's western region to popularize, and southern area of China also makes foam cement brick, to obtain the effect of roof heat insulation and exterior-wall heat insulation with foam cement.Although foam cement has above-mentioned plurality of advantages, but, foam cement affects by own material or environment etc., when using existing foam cement, the demoulding is slower, quality water-intake rate is high, easily causes film phenomenon of collapsing, thus affects yield rate and working efficiency, therefore, the foam cement that a kind of demoulding is fast, quality water-intake rate is low is needed now badly.
The information being disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
The object of the present invention is to provide a kind of foam cement and preparation method thereof, thus overcome the shortcomings such as the foam cement demoulding of the prior art is slow, quality water-intake rate is high.
For achieving the above object, technical scheme provided by the invention is as follows:
A kind of foam cement, comprises following component raw material according to ratio of weight and number: ordinary Portland cement 450-600 part, water 250-300 part, hydrogen peroxide 25-40 part, flyash 30-50 part, suds-stabilizing agent calcium stearate 1-10 part, poly-propyl group fiber 1-3 part, metakaolin 10-15 part, phosphoric acid powder 1-5 part and calcium sulphate powders 1-3 part.
Wherein, according to weight ratio additive: foam cement=0.5-2:100 adds additive and mixes with above-mentioned foam cement.
Wherein, described additive comprises following component raw material according to ratio of weight and number: trolamine 5-10 part, sodium hydroxide 100-300 part, oleic acid 0.25-5 part, silicone oil 0.25-5 part and stearic acid 5-10 part.
Wherein, described metakaolin is for being heated to 500-700 DEG C by kaolin and keeping 1h, obtained after cooling.
Wherein, it is 80-200 object particle that described flyash, phosphoric acid powder, calcium sulphate powders are all granularity.
A preparation method for foam cement as above, operation steps is:
(1) required each component raw material is taken by ratio of weight and the number of copies: ordinary Portland cement 450-600 part, water 250-300 part, hydrogen peroxide 25-40 part, flyash 30-50 part, suds-stabilizing agent calcium stearate 1-10 part, poly-propyl group fiber 1-3 part, metakaolin 10-15 part, phosphoric acid powder 1-5 part and calcium sulphate powders 1-3 part; According to weight ratio additive: foam cement=0.5-2:100 takes additive, then by ordinary Portland cement, flyash, poly-propyl group fiber, metakaolin, phosphoric acid powder mix and blend, then add water, continue to stir, obtain just material;
(2) step (1) gained is just expected to pass in foaming machine, add hydrogen peroxide, calcium stearate, calcium sulphate powders and additive simultaneously, maintenance mixing speed is 900-1000r/min, stir the 2-3s that to pause after 3-5s, then rotating speed is adjusted to 1100-1200r/min continue to stir 5-8s after and get final product.
Compared with prior art, the present invention has following beneficial effect:
Foam cement of the present invention, utilize the interaction such as ordinary Portland cement and metakaolin, phosphoric acid powder, additive, accelerate the demould time of foam cement, setting time and reduce the quality water-intake rate of foam cement, substantially increase quality product, facilitate production efficiency.
Embodiment
Be described in detail below in conjunction with embodiment, but be to be understood that protection scope of the present invention not by the restriction of embodiment.
Embodiment 1
The preparation of additive, metakaolin:
100g kaolin is heated to 500 DEG C and keeps 1h, after cooling, obtained metakaolin, for subsequent use; In units of g, take trolamine 5g, sodium hydroxide 100g, oleic acid 0.25g, silicone oil 0.25g and stearic acid 5g, each raw material is mixed, obtains additive, for subsequent use.
In units of g, take required each component raw material: ordinary Portland cement 450g, water 250g, hydrogen peroxide 25g, granularity is 80 object flyash 30g, suds-stabilizing agent calcium stearate 1g, poly-propyl group fiber 1g, above-mentioned gained metakaolin 10g, granularity is 80 object phosphoric acid powder 1g and granularity is 80 object calcium sulphate powders 1g, sublimed sulphur 0.5g, and above-mentionedly prepare gained additive 3.8g, then by ordinary Portland cement, flyash, poly-propyl group fiber, metakaolin, phosphoric acid powder, sublimed sulphur puts into stirrer, be uniformly mixed 2min to mixing, add the above-mentioned water taking gained, discharging after stirring 5min, enter in foaming machine, add hydrogen peroxide simultaneously, calcium stearate, calcium sulphate powders and additive, maintenance mixing speed is 900r/min, pause after stirring 5s 3s, then rotating speed is adjusted to after 1100r/min continues to stir 7s and namely obtains foam cement slurry, gained foam cement slurry is filled with in wallboard manufacture mould, solidify.Wallboard manufacture mould is weighed before pouring into foam cement slurry, and weigh after peeling and obtain foam cement slurry gross weight, namely original slurry material gross weight is 726g.Foam cement slurry gross weight, final setting time when detection foam cement presetting period, initial set subsequently, the demould time of Observe and measure foam cement.
The test of quality water suction dose rate: the foam cement after above-mentioned obtained placement 28d is put into baking oven, 48h is dried at 80 DEG C, take test specimen quality after oven dry and write down, under field conditions (factors) test specimen is cooled to room temperature, then put into water, test specimen is at each 50mm of the size that the water surface is upper and lower and keep water surface elevation constant, dries surface of test piece after 48h with the rag wrung out, take the quality of test specimen after saturated water suction, the quality test specimen quality of saturated water suction being deducted dry test specimen is quality water suction dose rate.
Draw data in table 1, table 2.
Embodiment 2
The preparation of additive, metakaolin:
100g kaolin is heated to 700 DEG C and keeps 1h, after cooling, obtained metakaolin, for subsequent use; In units of g, take trolamine 8g, sodium hydroxide 200g, oleic acid 2.6g, silicone oil 3.0g and stearic acid 7g, each raw material is mixed, obtains additive, for subsequent use.
In units of g, take required each component raw material: ordinary Portland cement 525g, water 275g, hydrogen peroxide 32.5g, granularity are 190 object flyash 40g, suds-stabilizing agent calcium stearate 6g, poly-propyl group fiber 2g, above-mentioned gained metakaolin 12g, granularity be 190 object phosphoric acid powder 3g and granularity are 190 object calcium sulphate powders 2g, quartzy sand 1.2g, and above-mentionedly prepare gained additive 9.0g.Wherein, with the alkaline soak 5-6h of mass concentration 50% before described quartzy sand uses, taking-up drains the water namely available.Then ordinary Portland cement, flyash, poly-propyl group fiber, metakaolin, phosphoric acid powder, sublimed sulphur are put into stirrer, be uniformly mixed 2min to mixing, add the above-mentioned water taking gained, discharging after stirring 10min, enter in foaming machine, add hydrogen peroxide, calcium stearate, calcium sulphate powders and additive simultaneously, maintenance mixing speed is 1000r/min, pause after stirring 4s 2s, then rotating speed is adjusted to after 1150r/min continues to stir 5s and namely obtains foam cement slurry, gained foam cement slurry is filled with in wallboard manufacture mould, solidifies.Wallboard manufacture mould is weighed before pouring into foam cement slurry, and weigh after peeling and obtain foam cement slurry gross weight, namely original slurry material gross weight is 848.5g.Foam cement slurry gross weight, final setting time when detection foam cement presetting period, initial set subsequently, the demould time of Observe and measure foam cement.The testing method of quality water-intake rate is in the same manner as in Example 1, draws data in table 1, table 2.
Embodiment 3
The preparation of additive, metakaolin:
100g kaolin is heated to 600 DEG C and keeps 1h, after cooling, obtained metakaolin, for subsequent use; In units of g, take trolamine 10g, sodium hydroxide 300g, oleic acid 5g, silicone oil 5g and stearic acid 10g, each raw material is mixed, obtains additive, for subsequent use.
In units of g, take required each component raw material: ordinary Portland cement 600g, water 300g, hydrogen peroxide 40g, granularity is 200 object flyash 50g, suds-stabilizing agent calcium stearate 10g, poly-propyl group fiber 3g, above-mentioned gained metakaolin 15g, granularity is 200 object phosphoric acid powder 5g and granularity is 200 object calcium sulphate powders 3g, sublimed sulphur 0.5g, and above-mentionedly prepare gained additive 20.5g, then by ordinary Portland cement, flyash, poly-propyl group fiber, metakaolin, phosphoric acid powder, sublimed sulphur puts into stirrer, be uniformly mixed 2min to mixing, add the above-mentioned water taking gained, discharging after stirring 5-15min, enter in foaming machine, add hydrogen peroxide simultaneously, calcium stearate, calcium sulphate powders and additive, maintenance mixing speed is 1050r/min, pause after stirring 3s 3s, then rotating speed is adjusted to after 1200r/min continues to stir 8s and namely obtains foam cement slurry, gained foam cement slurry is filled with in wallboard manufacture mould, solidify.Wallboard manufacture mould is weighed before pouring into foam cement slurry, and weigh after peeling and obtain foam cement slurry gross weight, namely original slurry material gross weight is 981.5g.Foam cement slurry gross weight, final setting time when detection foam cement presetting period, initial set subsequently, the demould time of Observe and measure foam cement.The testing method of quality water-intake rate is in the same manner as in Example 1, draws data in table 1, table 2.
Comparative example 1
Take 400g high-alumina cement, 4g rubber powder, 4g sodium stearate, 0.16g Quilonum Retard, 0.16g polypropylene fibre, 10g polycarboxylate water-reducer, 5g hydrogen peroxide, 4g flyash, fixing water cement ratio 0.46.High-alumina cement, rubber powder, sodium stearate, Quilonum Retard, polypropylene fibre, polycarboxylate water-reducer, hydrogen peroxide, flyash are put into stirrer and is uniformly mixed, so add water according to fixing water cement ratio 0.46, control mixing speed is 1400r/min, stir 2-3min, pass in foaming machine to pour in strong body production mould after continuation stirring 15s and solidify.Wallboard manufacture mould is weighed before pouring into foam cement slurry, and weigh after peeling and obtain foam cement slurry gross weight, namely original slurry material gross weight is 380.3g.Foam cement slurry gross weight, final setting time when detection foam cement presetting period, initial set subsequently, the demould time of Observe and measure foam cement.The testing method of quality water-intake rate is in the same manner as in Example 1, draws data in table 1, table 2.
Table 1
The setting time of the final setting time described in table 1 i.e. foam cement.
Table 2
As can be seen from above-mentioned table 1, table 2, foam cement of the present invention and common foam cement, namely in comparative example, ordinary method gained foam cement is compared, and foam cement setting time of the present invention, demould time all shorten, and quality water-intake rate reduces greatly.The shortening of setting time and demould time, the time making foam cement cast mould shortens greatly, shortens process time, improves production efficiency, and the foam cement of the present invention of the lower explanation of quality water-intake rate simultaneously quality is more excellent.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (6)
1. a foam cement, it is characterized in that, comprise following component raw material according to ratio of weight and number: ordinary Portland cement 450-600 part, water 250-300 part, hydrogen peroxide 25-40 part, flyash 30-50 part, calcium stearate 1-10 part, poly-propyl group fiber 1-3 part, metakaolin 10-15 part, phosphoric acid powder 1-5 part and calcium sulphate powders 1-3 part.
2. foam cement according to claim 1, is characterized in that: according to weight ratio additive: foam cement=0.5-2:100 adds additive and mixes with above-mentioned foam cement.
3. foam cement according to claim 2, it is characterized in that, described additive comprises following component raw material according to ratio of weight and number: trolamine 5-10 part, sodium hydroxide 100-300 part, oleic acid 0.25-5 part, silicone oil 0.25-5 part and stearic acid 5-10 part.
4. foam cement according to claim 1, is characterized in that: described metakaolin is for being heated to 500-700 DEG C by kaolin and keeping 1h, obtained after cooling.
5. foam cement according to claim 1, is characterized in that: it is 80-200 object particle that described flyash, phosphoric acid powder, calcium sulphate powders are all granularity.
6. a preparation method for foam cement as claimed in claim 1, is characterized in that, operation steps is:
(1) required each component raw material is taken by ratio of weight and the number of copies: ordinary Portland cement 450-600 part, water 250-300 part, hydrogen peroxide 25-40 part, flyash 30-50 part, calcium stearate 1-10 part, poly-propyl group fiber 1-3 part, metakaolin 10-15 part, phosphoric acid powder 1-5 part and calcium sulphate powders 1-3 part; According to weight ratio additive: foam cement=0.5-2:100 takes additive, then by ordinary Portland cement, flyash, poly-propyl group fiber, metakaolin, the mixing of phosphoric acid powder, then add water, continue to stir, obtain just material;
(2) step (1) gained is just expected to pass in foaming machine, add hydrogen peroxide, calcium stearate, calcium sulphate powders and additive simultaneously, maintenance mixing speed is 900-1000r/min, stir the 2-3s that to pause after 3-5s, then rotating speed is adjusted to 1100-1200r/min continue to stir 5-8s after and get final product.
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| CN201510961491.0A CN105503077A (en) | 2015-12-18 | 2015-12-18 | Foaming cement and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106145759A (en) * | 2016-07-01 | 2016-11-23 | 卓达新材料科技集团威海股份有限公司 | A kind of Novel foaming cement additive |
| CN106145760A (en) * | 2016-07-01 | 2016-11-23 | 卓达新材料科技集团威海股份有限公司 | A kind of Novel foaming cement additive |
| CN106186744A (en) * | 2016-07-01 | 2016-12-07 | 卓达新材料科技集团威海股份有限公司 | A kind of novel morning strong foam cement |
| CN107032650A (en) * | 2016-11-25 | 2017-08-11 | 新沂市中诺新材料科技有限公司 | It is a kind of to be used to strengthen the concrete and its additive of anti-pressure ability |
| CN109437778A (en) * | 2018-11-09 | 2019-03-08 | 高正春 | A kind of foamed cement and preparation method thereof |
| CN114644473A (en) * | 2022-03-07 | 2022-06-21 | 山西超牌煅烧高岭土有限公司 | Ultra-low density foaming magnesium oxysulfate cement and preparation method thereof |
| CN114685183A (en) * | 2022-05-13 | 2022-07-01 | 湖南省富民乐建材科技发展有限公司 | Light foaming filling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106145759A (en) * | 2016-07-01 | 2016-11-23 | 卓达新材料科技集团威海股份有限公司 | A kind of Novel foaming cement additive |
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| CN109437778A (en) * | 2018-11-09 | 2019-03-08 | 高正春 | A kind of foamed cement and preparation method thereof |
| CN114644473A (en) * | 2022-03-07 | 2022-06-21 | 山西超牌煅烧高岭土有限公司 | Ultra-low density foaming magnesium oxysulfate cement and preparation method thereof |
| CN114685183A (en) * | 2022-05-13 | 2022-07-01 | 湖南省富民乐建材科技发展有限公司 | Light foaming filling method |
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Application publication date: 20160420 |