CN105541172A - Additive used in foam cement - Google Patents
Additive used in foam cement Download PDFInfo
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- CN105541172A CN105541172A CN201510963447.3A CN201510963447A CN105541172A CN 105541172 A CN105541172 A CN 105541172A CN 201510963447 A CN201510963447 A CN 201510963447A CN 105541172 A CN105541172 A CN 105541172A
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- Prior art keywords
- foam cement
- additive
- parts
- foam
- china tree
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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
- 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
- C04B40/0039—Premixtures of ingredients
Abstract
The invention discloses an additive used in foam cement. The additive comprises the following raw materials, by weight: 0.2-0.8 parts of ethyl acetate, 20-70 parts of hydroxyethyl cellulose, 0.25-5 parts of cellulose gum, 0.25-5 parts of silicone oil, 4-14 parts of metakaolin, 3-5 parts of rosin resin, 0.1-0.2 parts of sodium alginate and 0.1-0.4 parts of glyceryl monostearate (GMS). With the additive used in foam cement, foam cement demolding time and setting time are accelerated; foam cement mass water absorption is reduced, product quality is greatly improved, and production efficiency is promoted.
Description
Technical field
The invention belongs to field of inorganic nonmetallic material, be specifically related to a kind of additive for foam cement.
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.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 comparatively slow, and quality water-intake rate is high, easily causes film phenomenon of collapsing, thus affect yield rate and working efficiency, therefore, need a kind of foam cement additive now badly, for promoting the foam cement demoulding soon after foam cement and reducing its quality water-intake rate.
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 additive for foam cement, 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:
For an additive for foam cement, comprise following component raw material according to ratio of weight and number: ethyl acetate 0.2-0.8 part, Natvosol 20-70 part, cellulose gum 0.25-5 part, silicone oil 0.25-5 part, metakaolin 4-14 part, Gum Rosin 3-5 part, sodium alginate 0.1-0.2 part and glyceryl monostearate (GMS) 0.1-0.4 part.
Wherein, the additive of above-mentioned foam cement also comprises China tree flower extract 7-11 part according to ratio of weight and number.
Wherein, described China tree flower extract for by China tree and water temperature be 180-240 DEG C, pressure is 4-6MPa supercritical extraction 0.5-1h, then concentrated by gained material, dry, to obtain final product.
Wherein, described China tree becomes 1:30-50 mass ratio with water.
Wherein, in described supercritical extraction process, mixing speed is 350r/min.
Wherein, described metakaolin is for being heated to 500-700 DEG C by kaolin and keeping 1h, obtained after cooling.
Wherein, described Gum Rosin granularity is 100-120 order.
When using the above-mentioned additive for foam cement, the additive for foam cement: foam cement becomes 0.5-2:100 weight ratio.
Compared with prior art, the present invention has following beneficial effect:
The present invention is used for the additive of foam cement, accelerates the demould time of foam cement, setting time and reduces 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.The commercial gained of composite foam concrete plate specialist additive F-360.
Embodiment 1
The preparation of China tree flower extract:
In units of g, by China tree: water becomes 1:50 mass ratio to take China tree and water, China tree and water are put into autoclave and keep that temperature is 210 DEG C, pressure is 5MPa, mixing speed is 350r/min supercritical extraction 0.5h, until high pressure temperature in the kettle be down to 90 DEG C and following after, pressure release discharging, gained material in autoclave is taken out, keep temperature to be 47 DEG C of concentrated 1h of heating, then put into 50 DEG C, baking oven and dry 30min, grind into powder, obtain, for subsequent use.100g kaolin is heated to 600 DEG C and keeps 1h, after cooling, obtained metakaolin, for subsequent use.
In units of g, take required each component raw material: ethyl acetate 0.5g, Natvosol 45g, cellulose gum 2.9g, silicone oil 3g, metakaolin 9g, Gum Rosin 4g, sodium alginate 0.1g and glyceryl monostearate (GMS) 0.25g and above-mentionedly prepare gained China tree flower extract 11g, namely above-mentioned each component raw material mixing and stirring is obtained the additive for foam cement.
Embodiment 2
The preparation of China tree flower extract:
In units of g, by China tree: water becomes 1:30 mass ratio to take China tree and water, China tree and water are put into autoclave and keep that temperature is 180 DEG C, pressure is 6MPa, mixing speed is 350r/min supercritical extraction 0.5h, until high pressure temperature in the kettle be down to 90 DEG C and following after, pressure release discharging, gained material in autoclave is taken out, keep temperature to be 40 DEG C of concentrated 1h of heating, then put into 50 DEG C, baking oven and dry 30min, grind into powder, obtain, for subsequent use.100g kaolin is heated to 500 DEG C and keeps 1h, after cooling, obtained metakaolin, for subsequent use.
In units of g, take required each component raw material: ethyl acetate 0.2g, Natvosol 20g, cellulose gum 0.25g, silicone oil 0.25g, metakaolin 4g, Gum Rosin 3g, sodium alginate 0.1g and glyceryl monostearate (GMS) 0.1g and above-mentionedly prepare gained China tree flower extract 7g, namely above-mentioned each component raw material mixing and stirring is obtained the additive for foam cement.
Embodiment 3
The preparation of China tree flower extract:
In units of g, by China tree: water becomes 1:40 mass ratio to take China tree and water, China tree and water are put into autoclave and keep that temperature is 240 DEG C, pressure is 4MPa, mixing speed is 350r/min supercritical extraction 1h, until high pressure temperature in the kettle be down to 90 DEG C and following after, pressure release discharging, gained material in autoclave is taken out, keep temperature to be 53 DEG C of concentrated 1h of heating, then put into 50 DEG C, baking oven and dry 30min, grind into powder, obtain, for subsequent use.100g kaolin is heated to 700 DEG C and keeps 1h, after cooling, obtained metakaolin, for subsequent use.
In units of g, take required each component raw material: ethyl acetate 0.8g, Natvosol 70g, cellulose gum 5g, silicone oil 5g, metakaolin 14g, Gum Rosin 5g, sodium alginate 0.2g and glyceryl monostearate (GMS) 0.4g and above-mentionedly prepare gained China tree flower extract 9g, namely above-mentioned each component raw material mixing and stirring is obtained the additive for foam cement.
Embodiment 4
Above-described embodiment 1, embodiment 2, embodiment 3 are prepared the additive that gained is used for foam cement, is numbered respectively 1., 2., 3.; 4. commercial gained composite foam concrete plate specialist additive F-360 is numbered; Blank, for numbering 5., carries out following operation.
Take 400g ordinary Portland 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, add the additive 2.14g be numbered 1. again, namely embodiment 1 prepares gained additive, 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 384.4g.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 5
Additive is numbering additive 2., and namely embodiment 2 prepares the additive of gained for foam cement, and add-on is 5.3g, and all the other are operating as in embodiment 4 identical.
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 388.7g.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 6
Additive is numbering additive 3., and namely embodiment 3 prepares the additive of gained for foam cement, and add-on is 8.5g, and all the other are operating as in embodiment 4 identical.
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 393g.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 7
Additive is numbering additive 4., i.e. commercial gained composite foam concrete plate specialist additive F-360, add-on is 12.8g, and all the other are operating as in embodiment 4 identical.
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 396.62g.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 8
When 5. additive is numbered, be blank, do not add additive, all the other operations as in Example 4.
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 384.82g.Foam cement slurry gross weight when detecting foam cement presetting period, initial set subsequently, final setting time calculated mass water-intake rate, the demould time of Observe and measure foam cement, draws data in table 1, table 2.
Table 1
| The additive numbering of adding | Presetting period | Final setting time | Demould time |
| ① | 53min | 3.3h | 13.8h |
| ② | 51min | 3.5h | 13.5h |
| ③ | 50min | 3.1h | 13h |
| ④ | 60min | 5.4h | 22h |
| ⑤ | 68 | 6h | 25h |
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, the present invention is used for the additive of foam cement and common foam cement additive, in practice process, the Additive of foam cement is used for after foaming water with the present invention, gained foam cement setting time, 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 (8)
1. the additive for foam cement, it is characterized in that, comprise following component raw material according to ratio of weight and number: ethyl acetate 0.2-0.8 part, Natvosol 20-70 part, cellulose gum 0.25-5 part, silicone oil 0.25-5 part, metakaolin 4-14 part, Gum Rosin 3-5 part, sodium alginate 0.1-0.2 part and glyceryl monostearate (GMS) 0.1-0.4 part.
2. according to claim 1 for the additive of foam cement, it is characterized in that: the additive of above-mentioned foam cement also comprises China tree flower extract 7-11 part according to ratio of weight and number.
3. according to claim 2 for the additive of foam cement, it is characterized in that: described China tree flower extract for by China tree and water temperature be 180-240 DEG C, pressure is 4-6MPa supercritical extraction 0.5-1h, then gained material is concentrated, dry, to obtain final product.
4. according to claim 3 for the additive of foam cement, it is characterized in that: described China tree becomes 1:30-50 mass ratio with water.
5. according to claim 3 for the additive of foam cement, it is characterized in that: in described supercritical extraction process, mixing speed is 350r/min.
6. according to claim 1 for the additive of foam cement, it is characterized in that: described metakaolin is for being heated to 500-700 DEG C by kaolin and keeping 1h, obtained after cooling.
7. according to claim 1 for the additive of foam cement, it is characterized in that: described Gum Rosin granularity is 100-120 order.
8. use and be used for foam cement for the additive of foam cement as claimed in claim 1, it is characterized in that: the additive for foam cement: foam cement becomes 0.5-2:100 weight ratio.
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| CN201510963447.3A CN105541172B (en) | 2015-12-18 | 2015-12-18 | A kind of additive for foam cement |
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| CN201510963447.3A CN105541172B (en) | 2015-12-18 | 2015-12-18 | A kind of additive for foam cement |
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| CN105541172B CN105541172B (en) | 2018-10-02 |
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2015
- 2015-12-18 CN CN201510963447.3A patent/CN105541172B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201195905Y (en) * | 2008-05-13 | 2009-02-18 | 郁建荣 | Composite fiber cement slab |
| CN101524557A (en) * | 2009-04-21 | 2009-09-09 | 华南理工大学 | Anti-collapsibility calcium phosphate cement, preparation method and application thereof |
| CN101725311A (en) * | 2009-11-27 | 2010-06-09 | 浙江邦德光电集团有限公司 | Pearlite fiber composite fire-proof heat insulation board |
| WO2013085900A1 (en) * | 2011-12-09 | 2013-06-13 | Dow Global Technologies Llc | A method for providing modified cement compositions, dry mortars and cement-free mixtures |
| CN102718448A (en) * | 2012-04-28 | 2012-10-10 | 深圳市爱思宝科技发展有限公司 | Glaze and method for forming glaze layer |
| CN102829284A (en) * | 2012-09-18 | 2012-12-19 | 西安建筑科技大学 | Composite thermal insulation material as well as preparation and application thereof |
| CN103102173A (en) * | 2013-01-18 | 2013-05-15 | 深圳市爱思宝科技发展有限公司 | Preparation method for glaze surface layer |
| CN103121822A (en) * | 2013-03-06 | 2013-05-29 | 上海知兴科贸有限公司 | Dry powder blended material capable of recycling waste mud as well as production method and application thereof |
| CN103467978A (en) * | 2013-09-23 | 2013-12-25 | 湖南工业大学 | Multi-component compound modified nylon 6 composite material for carrier roller and preparation method thereof |
| CN103665972A (en) * | 2013-12-09 | 2014-03-26 | 刘岩玉 | Damp-proof material |
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