CN107352834A - A kind of magnesite binding material water resistant reinforced modifier formula and preparation method - Google Patents
A kind of magnesite binding material water resistant reinforced modifier formula and preparation method Download PDFInfo
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- CN107352834A CN107352834A CN201710559024.4A CN201710559024A CN107352834A CN 107352834 A CN107352834 A CN 107352834A CN 201710559024 A CN201710559024 A CN 201710559024A CN 107352834 A CN107352834 A CN 107352834A
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- binding material
- water resistant
- resistant reinforced
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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
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- Ceramic Engineering (AREA)
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- Organic Chemistry (AREA)
- Colloid Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention belongs to magnesite gel modifier technical field, it is proposed that a kind of magnesite binding material water resistant reinforced modifier formula and preparation method, its formula are made up of the component of following parts by weight：28~32 parts of water, 28~32 parts of industrial methanol, 8~12 parts of benzoic acid, 13~17 parts of higher fatty acid salt, 4~7 parts of EVA emulsions, 8~12 parts of sodium metasilicate.The present invention solves the technical problem that magnesite binding material modifier modification effect is bad in the prior art.
Description
Technical field
The invention belongs to magnesite gel modifier technical field, is related to a kind of magnesite binding material water resistant reinforced modifier and matches somebody with somebody
Side and preparation method.
Background technology
Magnesite binding material is also known as magnesia cement, is a kind of air-setting gelling that French scholar Sorel proposed in 1867
Material, enriched because China's magnesite Resource management has, and there is magnesite material hardness to increase fast, anti-folding and anti-pressing
It is good, intensity is high, alkalescence is weak, corrosivity is low, elastic height, good toughness, it is in light weight and to organic-inorganic or fiber with preferably
Adhesive property the advantages that, more than one since century different types of magnesite material product have been introduced into urban construction, building
The every field such as engineering, agricultural production and environmental protection, but because this material product is more sensitive to environmental change, high temperature is high
Easy damp suction surface halide accumulation under the conditions of wet, and phenomena such as with scum and product easy buckling deformation, had a strong impact on the use of product
Performance.In order to overcome this defect, people have carried out substantial amounts of experiment, and some instead of magnesium chloride solution using Adlerika
Technical scheme, although can overcome drawbacks described above, the intensity of product but reduces larger, and effect is unsatisfactory, also adopts
With the maintenance plan that the product after the firm demoulding is placed in water to immersion, but it is this conserve the intensity that can also substantially reduce product, and
And prohibitted the use of this scheme to conserve magnesite product in industry at present, although also having, some modifying agent modified effects are preferable,
It is expensive, competitiveness commercially is reduced, therefore research and develop the magnesite binding material that a kind of modified effect is good and cost is low
Modifying agent is the technical problem of current urgent need to resolve.
The content of the invention
The present invention proposes a kind of magnesite binding material water resistant reinforced modifier formula and preparation method, solves above-mentioned skill
Art problem.
The technical proposal of the invention is realized in this way：
A kind of magnesite binding material water resistant reinforced modifier formula, is made up of the component of following parts by weight：28~32 parts of water,
28~32 parts of industrial methanol, 8~12 parts of benzoic acid, 13~17 parts of higher fatty acid salt, 4~7 parts of EVA emulsions, sodium metasilicate 8~12
Part.
Further, optimization formula is made up of the component of following parts by weight：30 parts of water, 30 parts of industrial methanol, 10 parts of benzoic acid,
15 parts of higher fatty acid salt, 5 parts of EVA emulsions, 10 parts of sodium metasilicate.
Further, the higher fatty acid salt is specially alkali metal salt of the fatty carbon chain length for 12-24 carbon.
A kind of magnesite binding material water resistant reinforced modifier preparation method, preparation method comprise the following steps：
(1) according to the parts by weight in formula weigh water, industrial methanol, benzoic acid, higher fatty acid salt, EVA emulsions with
And sodium metasilicate；
(2) sodium metasilicate weighed in step (1) and water are dissolved under the conditions of 40 DEG C~50 DEG C, silicon is obtained after stirring
The aqueous solution of sour sodium；
(3) by the industrial methanol, benzoic acid, higher fatty acid salt and the EVA emulsions that are weighed in step (1) 40 DEG C~50
Mixed dissolution under the conditions of DEG C, mixed solution is obtained after stirring；
(4) mixed solution obtained in the aqueous solution and step (3) that obtain step (2) is sufficiently mixed, and is stirred equal
It is even, as magnesite binding material water resistant reinforced modifier.
Compared with prior art, operation principle of the present invention and have the beneficial effect that：
1st, magnesia cement material composition magnesia is calcined then under the conditions of 800-1000 celsius temperatures by magnesite
Made of ground, after product is made, capillary porosity between feed particles be present, water resistant reinforced modifier prepared by the present invention adds
After entering into magnesite slurry, the pore surface inside magnesia cement can form very thin hydrophobic membrane while exposed
Outer surface also forms hydrophobic membrane, it is come with air insulated, reduces the chance of moisture in absorption air.
2nd, each component in inventive formulation is common materials, and cost is low, and water resistant enhancing prepared by the present invention changes
Property agent there is stronger diminishing function, can so reduce the bittern dosage in cementitious matter, reduce the amount of free magnesium chloride, and change
Property agent in the acid that is formed after benzoic acid, higher fatty acid salt and EVA latex composite compoundings and acid ion can combine free magnesium
Ion, form micro emulsion and block capillary channel, the possibility for reducing the damp suction surface halide accumulation of product improves the water resistance and intensity of product.
Embodiment
It is clearly and completely described below in conjunction with the technical scheme in the embodiment of the present invention, it is clear that described reality
It is only part of the embodiment of the present invention to apply example, rather than whole embodiments.It is general based on the embodiment in the present invention, this area
The every other embodiment that logical technical staff is obtained under the premise of creative work is not made, belong to what the present invention protected
Scope.
Embodiment one：
28g water and 8g sodium metasilicate are mixed to dissolving under the conditions of 40 DEG C~50 DEG C, obtain the aqueous solution of sodium metasilicate；Will
28g industrial methanols, 8g benzoic acid, 13g higher fatty acid salts, 4gEVA emulsions mix dissolving under the conditions of 40 DEG C~50 DEG C,
Mixed solution is obtained after stirring；It is the present invention after the aqueous solution of above-mentioned sodium metasilicate and mixed solution are mixed evenly
Magnesite binding material water resistant reinforced modifier.
Embodiment two：
30g water and 10g sodium metasilicate are mixed to dissolving under the conditions of 40 DEG C~50 DEG C, obtain the aqueous solution of sodium metasilicate；
30g industrial methanols, 10g benzoic acid, 15g higher fatty acid salts, 5gEVA emulsions are mixed under the conditions of 40 DEG C~50 DEG C molten
Solution, mixed solution is obtained after stirring；It is this after the aqueous solution of above-mentioned sodium metasilicate and mixed solution are mixed evenly
Invention magnesite binding material water resistant reinforced modifier.
Embodiment three：
32g water and 12g sodium metasilicate are mixed to dissolving under the conditions of 40 DEG C~50 DEG C, obtain the aqueous solution of sodium metasilicate；
32g industrial methanols, 12g benzoic acid, 17g higher fatty acid salts, 7gEVA emulsions are mixed under the conditions of 40 DEG C~50 DEG C molten
Solution, mixed solution is obtained after stirring；It is this after the aqueous solution of above-mentioned sodium metasilicate and mixed solution are mixed evenly
Invention magnesite binding material water resistant reinforced modifier.
By starching experiment only, i.e., the magnesite of any modifying agent is not added, optimum oxidation magnesium and magnesium chloride proportioning are determined, in oxygen
Under the premise of changing magnesium and magnesium chloride optimum fiting ratio, be molded with the gang moulds of standard 40mm × 40mm × 160mm tri-, measure respectively its 7
Its rupture strength, 28 days compression strength, immersion 7 days, the resistance to compression coefficient of softing of 28 days are surveyed to characterize the performance of modified material
Test result is as described in Table 1：
The water resistant reinforced modifier test result of table 1
Wherein, blank control is not add the magnesite gelling of any modifying agent, and control 1 and control 2 are that in the market is existing
Two kinds of modifying agent, modifying agent addition are the 1% of magnesia quality.
As can be seen from Table 1, after material soaks 28 days after addition modifying agent, coefficient of softing has long-term all more than 0.9
Water resistance, and 7 days and 28 days resistance to compression coefficient of softing have respectively reached 0.939 He after the modifying agent addition for preparing of inventive formulation
More than 0.940, better than other formulas of in the market, and the formula of the embodiment two in the present invention is optimization formula.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (4)
1. a kind of magnesite binding material water resistant reinforced modifier formula, it is characterised in that be made up of the component of following parts by weight：Water
28~32 parts, 28~32 parts of industrial methanol, 8~12 parts of benzoic acid, 13~17 parts of higher fatty acid salt, 4~7 parts of EVA emulsions, silicon
Sour 8~12 parts of sodium.
2. a kind of magnesite binding material water resistant reinforced modifier formula according to claim 1, it is characterised in that by following
The component composition of parts by weight：30 parts of water, 30 parts of industrial methanol, 10 parts of benzoic acid, 15 parts of higher fatty acid salt, 5 parts of EVA emulsions,
10 parts of sodium metasilicate.
A kind of 3. magnesite binding material water resistant reinforced modifier formula according to claim 1, it is characterised in that the height
Level soap is specially alkali metal salt of the fatty carbon chain length for 12-24 carbon.
4. a kind of magnesite binding material water resistant reinforced modifier preparation method, it is characterised in that any according to claims 1 to 3
Prepared by the formula described in one, preparation method comprises the following steps：
(1) water, industrial methanol, benzoic acid, higher fatty acid salt, EVA emulsions and silicon are weighed according to the parts by weight in formula
Sour sodium；
(2) sodium metasilicate weighed in step (1) and water are dissolved under the conditions of 40 DEG C~50 DEG C, sodium metasilicate is obtained after stirring
The aqueous solution；
(3) by the industrial methanol, benzoic acid, higher fatty acid salt and the EVA emulsions that are weighed in step (1) in 40 DEG C~50 DEG C bars
Mixed dissolution under part, mixed solution is obtained after stirring；
(4) mixed solution obtained in the aqueous solution and step (3) that obtain step (2) is sufficiently mixed, and is stirred, i.e.,
For magnesite binding material water resistant reinforced modifier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710559024.4A CN107352834B (en) | 2017-07-11 | 2017-07-11 | A kind of magnesite binding material water resistant reinforced modifier formula and preparation method |
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| CN201710559024.4A CN107352834B (en) | 2017-07-11 | 2017-07-11 | A kind of magnesite binding material water resistant reinforced modifier formula and preparation method |
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| CN107352834A true CN107352834A (en) | 2017-11-17 |
| CN107352834B CN107352834B (en) | 2019-08-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108658518A (en) * | 2018-07-05 | 2018-10-16 | 河北盛冀建材科技有限公司 | A kind of pervious concrete |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337371A (en) * | 2001-09-19 | 2002-02-27 | 山东省建筑科学研究院 | Prepn of water-reducing and surface halide accumulation resisting modifier for magnesite binding material |
| US20040103814A1 (en) * | 2002-11-27 | 2004-06-03 | Do-Chul Shin | Waterproof admixture composition for concrete having excellent anti-corrosive performance |
| CN102424540A (en) * | 2011-08-11 | 2012-04-25 | 南昌大学 | Preparation method for magnesite material water resistance modifier, and use method thereof |
| CN106866104A (en) * | 2017-02-27 | 2017-06-20 | 江西省建筑材料工业科学研究设计院 | A kind of magnesite water resistant modifying agent |
-
2017
- 2017-07-11 CN CN201710559024.4A patent/CN107352834B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337371A (en) * | 2001-09-19 | 2002-02-27 | 山东省建筑科学研究院 | Prepn of water-reducing and surface halide accumulation resisting modifier for magnesite binding material |
| US20040103814A1 (en) * | 2002-11-27 | 2004-06-03 | Do-Chul Shin | Waterproof admixture composition for concrete having excellent anti-corrosive performance |
| CN102424540A (en) * | 2011-08-11 | 2012-04-25 | 南昌大学 | Preparation method for magnesite material water resistance modifier, and use method thereof |
| CN106866104A (en) * | 2017-02-27 | 2017-06-20 | 江西省建筑材料工业科学研究设计院 | A kind of magnesite water resistant modifying agent |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108658518A (en) * | 2018-07-05 | 2018-10-16 | 河北盛冀建材科技有限公司 | A kind of pervious concrete |
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| Publication number | Publication date |
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| CN107352834B (en) | 2019-08-09 |
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Effective date of registration: 20210819 Address after: 464000 No. 3, Xingfu Avenue, shangshiqiao industrial cluster, Shangcheng County, Xinyang City, Henan Province Patentee after: Xinyang Ruichuan New Material Technology Co.,Ltd. Address before: 050000 Nanbei Qinghe River, Nanhuan Road, Zanhuang Town, Zanhuang County, Shijiazhuang City, Hebei Province Patentee before: SHIJIAZHUANG JIANHENG NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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