CN105924026A - Anti-mud small material for compounding of polycarboxylate superplasticizer and application method thereof - Google Patents
Anti-mud small material for compounding of polycarboxylate superplasticizer and application method thereof Download PDFInfo
- Publication number
- CN105924026A CN105924026A CN201610262344.9A CN201610262344A CN105924026A CN 105924026 A CN105924026 A CN 105924026A CN 201610262344 A CN201610262344 A CN 201610262344A CN 105924026 A CN105924026 A CN 105924026A
- Authority
- CN
- China
- Prior art keywords
- sodium
- reducing agent
- polycarboxylic acids
- small material
- small powder
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
Abstract
The invention discloses an anti-mud small material for compounding of a polycarboxylate superplasticizer and an application method thereof. The anti-mud small material is prepared from the following raw materials by mass: 60 to 75% of sodium pyrosulfite, 0 to 20% of sodium hexametaphosphate, 10 to 25% of sodium tripolyphosphate and 5 to 15% of sodium nitrate. A preparation method for the anti-mud small material is to uniformly mix the above-mentioned raw materials in proportion under stirring and hermetically preserve the obtained anti-mud small material. According to the application method, the anti-mud small material is used as a compounding small material for compounding with the polycarboxylate superplasticizer, and the usage amount of the anti-mud small material is 1 to 5% of a finished polycarboxylate superplasticizer product. According to the invention, the anti-mud small material has strong clay dispersion capability and preferential clay adsorption effect, thereby greatly reducing adsorption consumption of the polycarboxylate superplasticizer by clay, guaranteeing high water-reducing effect and excellent slump loss resistance of the polycarboxylate superplasticizer and offsetting influence of the clay on concrete strength; and the preparation and application methods are simple, the usage amount of the anti-mud small material is small, and cost is low.
Description
Technical field
The present invention relates to a kind of concrete admixture, particularly a kind of polycarboxylic acids water reducing agent compositional, with anti-chamotte mould small powder, belongs to
In chemical building material technical field.
Background technology
Concrete is the construction material that current consumption is maximum, and the existing building overwhelming majority is to be made up of concrete,
Concrete has become as the basis of human lives.Concrete admixture is except cement, sand, stone, water, mineral blend in concrete
The 6th component outside material, it plays the role of particular importance in the application of high performance concrete.Polycarboxylic acid series high-performance
Cement water reducing agent be 20th century the mid-80 first developed application by Japan, the mid-90 formally realize industry metaplasia
Produce, and become wide variety of a kind of new concrete additive in construction, due to its low-dosage, high water reducing rate, height
Guarantor is collapsed the excellent properties such as effect and environmental protection so that it is become a most important ingredient in concrete admixture.
Although poly carboxylic acid series water reducer has plurality of advantages, but it is affected bigger by sand clay content in concrete.Sand
The interlayer structure of middle earth and comprised can adsorb polycarboxylic-acid diminishing in a large number such as the high volence metal ion such as aluminium ion, magnesium ion
Agent, makes water reducer lose activity.In recent years, along with the continuous expansion of domestic construction scale, natural sand resource scarcity, quality is steady
The sand fixed, function admirable, grain composition are good, cement content is little is fewer and feweri.The sand of a large amount of high clay contents is used directly to coagulation
In soil, all adversely affect mixing the workability of poly carboxylic acid series water reducer concrete, intensity and durability etc..Also do not have at present
There is a kind of effective method to solve this problem, can only solve by improving poly carboxylic acid series water reducer volume.But it is poly-increasing
While carboxylic acid water reducing agent volume, the cost of concrete can be improved, too increase the trouble of other production technology.
Patent CN104479084A discloses a kind of novel environment friendly polycarboxylate system anti-mud agent and preparation method thereof.This poly-carboxylic
Phosphate-gallate series anti-mud agent is to be monomer by the polyoxyethylene ether containing unsaturated double-bond, unsaturated esters and derivant, unsaturated carboxylic acid
And derivant, redox initiator is synthesized by free radical polymerization.This anti-mud agent described in invention is actually made
Use for a kind of polycarboxylic acids sacrifice agent, reduce clay to polycarboxylate water-reducer by Preferential adsorption polycarboxylate system anti-mud agent
Impact, for opposing clay impact have certain effect, but with high costs, be not suitable for widely apply.
Patent CN103466987A discloses high-load earth in a kind of shielding concrete and adsorbs answering of polycarboxylate water-reducer
Closing earth adsorbent and preparation method thereof and using method, this composite mud earth adsorbing is by disperseing diluent 10%～20%, delaying
Prepared by solidifying agent 5%～10%, ionic complexing agent 0.5%～2.5%, surfactant 0.2%～0.5% and water.This invention
Described composite mud earth adsorbing can improve polycarboxylate water-reducer to a certain extent and use in the concrete that clay content is high
The problem of poor performance, but it uses volume to be the 0.2%～0.5% of Binder Materials, for relative polycarboxylate water-reducer, volume
The highest, the durability of concrete is had an impact.
Patent CN104446089A discloses the resistance mud agent of a kind of concrete based on clay mineral flocculation and preparation thereof
Method, this resistance mud agent is compounded prepared by a kind of polyion complex salt flocculant and stabilizer, corrosion inhibiter, reinforcing agent.This invention base
Solve the clay mineral unfavorable Preferential adsorption effect to polycarboxylate water-reducer in clay mineral flocculation, effectively reduce and subtract
Water preparation and concrete preparation cost.But, when summer uses, production equipment can be caused necessarily by the deep-etching effect of flocculant
Destruction, acceleration equipment is aging, improves cost of equipment maintenance.
Summary of the invention
It is an object of the invention to provide a kind of polycarboxylic acids water reducing agent compositional anti-chamotte mould small powder and using method thereof, be used for
Solve cost present in the polycarboxylate water-reducer problem that using effect is poor in the concrete of high clay content and prior art
Height, complex process, volume are big and affect the problems such as concrete durability.
Realize the technical scheme of the object of the invention: a kind of polycarboxylic acids water reducing agent compositional is with anti-chamotte mould small powder, by following quality
The raw material composition of number:
Sodium pyrosulfite: 60%～75%
Sodium hexameta phosphate: 0%～20%
Sodium tripolyphosphate: 10%～25%
Sodium nitrate: 5%～15%.
As optimization, described sodium tripolyphosphate is lightweight sodium tripolyphosphate.
The anti-chamotte mould small powder of the present invention it can be that the raw material of preferred following mass percent is made: sodium pyrosulfite
60%, sodium hexameta phosphate 10%, sodium tripolyphosphate 15%, sodium nitrate 15%.
The anti-chamotte mould small powder of the present invention is it may also is that the raw material of preferred following mass percent is made: sodium pyrosulfite
70%, sodium tripolyphosphate 20%, sodium nitrate 10%.
The preparation method of the anti-chamotte mould small powder of the present invention is: according to above-mentioned raw materials proportioning by the mixing of each component batch mixer all
Even, and seal preservation.
The using method of the anti-chamotte mould small powder of the present invention is: used with polycarboxylic acids water reducing agent compositional by anti-chamotte mould small powder, its
Consumption is the 1%～5% of polycarboxylate water-reducer end product quality.
The granularity of above-mentioned sodium pyrosulfite is 100～400 mesh, content >=96.5%, is dried without caking.
The granularity of above-mentioned sodium hexameta phosphate is 80～200 mesh, total phosphate content >=68%, is dried without caking.
Above-mentioned sodium tripolyphosphate is lightweight sodium tripolyphosphate, and granularity is 80～200 mesh, content >=96%, is dried without caking.
The granularity of above-mentioned sodium nitrate is 100～400 mesh, content >=99.3%, water content≤0.5%, without caking.
The mechanism of action of the anti-chamotte mould small powder of the present invention is: sodium pyrosulfite is a kind of strong dispersant, can be preferential
Adsorbing clays, discharges, by its absorption peptizaiton, the free water surrounded by clay granule, forms diffusion after adsorbing clays
Electric double layer, further hinders the absorption of clay and polycarboxylate water-reducer, reduces the consumption of polycarboxylate water-reducer, this electric double layer
Exist and also play the effect of lubrication to increase the mobility of slurry；Sodium hexameta phosphate and sodium tripolyphosphate are permissible with clay particle
Forming stable complex anion, its chemical adsorption capacity is relatively strong, plays cooperative effect with sodium pyrosulfite；Sodium nitrate is as one
Inorganic salt early strength agent, can compensate the concrete strength loss that clay causes, can also regulate the setting time of concrete.This
Bright each component mechanism of action is clear and definite, action effect obvious, can effectively solve polycarboxylate water-reducer and be applied to high clay content
Concrete time water-reducing rate reduce, protect and collapse the problem such as weak effect and loss of strength.
The present invention, compared to prior art, has the advantage that 1. production cost is low, and raw material is easy to get, according to existing market
Price level, price per ton is 2,400 3000 yuan, far below the anti-mud agent of various high molecular polymers and containing Organic substance
The compound anti-mud agent of component；2. production technology is simple, only need to be by each component mix homogeneously, it is not necessary to loaded down with trivial details reacting by heating etc.
Step, non-environmental-pollution, beneficially industrialized production: 3. consumption is little, effect is notable, when using with polycarboxylic acids water reducing agent compositional, root
Adjust its consumption according to the clay content of sandstone material, save additive complex and concrete production cost；4. recipe ingredient closes
Reason has evidence, and the mechanism of action is clear and definite, has theoretical basis and technical support.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described further, but is not limited to following example.
Embodiment 1:
A kind of polycarboxylic acids water reducing agent compositional with anti-chamotte mould small powder, weighs raw material according to following percent mass proportioning: Jiao's sulfurous
Various raw materials manually or are used batch mixer by acid sodium 60%, sodium hexameta phosphate 10%, sodium tripolyphosphate 15%, sodium nitrate 15%
Mix homogeneously, prepares anti-mud agent 1#.
Embodiment 2:
A kind of polycarboxylic acids water reducing agent compositional with anti-chamotte mould small powder, weighs raw material according to following percent mass proportioning: Jiao's sulfurous
Various raw materials manually or are used batch mixer mix homogeneously by acid sodium 70%, sodium tripolyphosphate 20%, sodium nitrate 10%, prepare anti-
Mud agent 2#.
Embodiment 3:
A kind of polycarboxylic acids water reducing agent compositional with anti-chamotte mould small powder, weighs raw material according to following percent mass proportioning: Jiao's sulfurous
Various raw materials manually or are used batch mixer by acid sodium 68%, sodium hexameta phosphate 10%, sodium tripolyphosphate 10%, sodium nitrate 12%
Mix homogeneously, prepares anti-mud agent 3#.
Application effect below by concrete test explanation embodiment 1～3:
For ensureing the multiformity of clay sample, combine with reality application simultaneously, respectively in Yunnan, Guizhou and ground, Chongqing three
The deposition clod sampling of elutriation pond, sand field, and dry grinding and uniformly make mud powder.
(1) Mortar'S Flowability test (carrying out with reference to GB/T2419-2005 " Test method for fluidity of cement mortar ")
Test material: Tai'an P O42.5 cement；Iso standard sand；Mud powder；Tap water；Guizhou Tie Jianhengfa new material section
Skill limited company (hereinafter referred to as Heng Fa company) water reducer TJ-S5 (admittedly containing 40%).
Additive complex scheme: TJ-S5: anti-mud agent: water=25:2:73 (mass ratio)
Blank group additive: TJ-S5: water=25:75 (mass ratio)
Mortar mix ratio:
| Title | Cement | Sand | Mud powder | Water | Additive |
| Quality (g) | 600 | 1350 | 250 | 18 |
Mortar'S Flowability result of the test:
(2) concrete test (enters with reference to GB/T50080-2002 " Standard for test methods of properties of ordinary concrete mixture standard "
OK)
Test material: Tai'an P O42.5 cement；Heng Fa company sand (containing mud 6%)；Heng Fa company stone, mud powder；From
Water；Heng Fa company water reducer TJ-S5 (admittedly containing 40%).
Additive complex scheme: TJ-S5: anti-mud agent: water=25:2:73 (mass ratio)
Blank group additive: TJ-S5: water=25:75 (mass ratio)
Concrete mix:
| Label | Cement | Sand | Stone | Water | Mud (accounts for sand) | Admixture dosage |
| C30 | 360 | 860 | 1010 | 170 | 4% | 2.8% |
Concrete test result:
By above-mentioned mortar and concrete data it can be seen that in three areas the shale in Yunnan worst, to mortar and coagulation
The impact of soil is maximum, is secondly Guizhou, is finally Chongqing；Above-mentioned data have also been proved the anti-mud small powder of the present invention and have been applied in reality
In excellent properties.
Claims (9)
1. a polycarboxylic acids water reducing agent compositional is with anti-chamotte mould small powder, it is characterised in that it is by the raw material of following percent mass proportioning
Make:
Sodium pyrosulfite: 60%～75%
Sodium hexameta phosphate: 0%～20%
Sodium tripolyphosphate: 10%～25%
Sodium nitrate: 5%～15%.
2. polycarboxylic acids water reducing agent compositional as claimed in claim 1 is with anti-chamotte mould small powder, it is characterised in that by following mass fraction
Raw material make: sodium pyrosulfite 60%, sodium hexameta phosphate 10%, sodium tripolyphosphate 15%, sodium nitrate 15%.
3. polycarboxylic acids water reducing agent compositional as claimed in claim 1 is with anti-chamotte mould small powder, it is characterised in that by following mass fraction
Raw material make: sodium pyrosulfite 70%, sodium tripolyphosphate 20%, sodium nitrate 10%.
4. according to the polycarboxylic acids water reducing agent compositional described in any one of claim 1-3 with anti-chamotte mould small powder, it is characterised in that described
The granularity of sodium pyrosulfite is 100～400 mesh, content >=96.5%, is dried without caking.
5. according to the polycarboxylic acids water reducing agent compositional described in any one of claim 1-3 with anti-chamotte mould small powder, it is characterised in that described
The granularity of sodium hexameta phosphate is 80～200 mesh, total phosphate content >=68%, is dried without caking.
6. according to the polycarboxylic acids water reducing agent compositional described in any one of claim 1-3 with anti-chamotte mould small powder, it is characterised in that described
Sodium tripolyphosphate is lightweight sodium tripolyphosphate, and granularity is 80～200 mesh, content >=96%, is dried without caking.
7. according to the polycarboxylic acids water reducing agent compositional described in any one of claim 1-3 with anti-chamotte mould small powder, it is characterised in that described
The granularity of sodium nitrate is 100～400 mesh, content >=99.3%, water content≤0.5%, without caking.
8. the preparation method for anti-chamotte mould small powder of the polycarboxylic acids water reducing agent compositional as described in any one of claims 1 to 3, its
Being characterised by: according to described proportioning raw materials, in the environment of being dried, use batch mixer is by each raw material mix homogeneously, and seals guarantor
Deposit.
9. the using method for anti-chamotte mould small powder of the polycarboxylic acids water reducing agent compositional as described in any one of claims 1 to 3, its
Be characterised by, described polycarboxylic acids water reducing agent compositional with 1% that the consumption of anti-chamotte mould small powder is described polycarboxylate water-reducer finished product～
5%。
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| CN201610262344.9A CN105924026A (en) | 2016-04-26 | 2016-04-26 | Anti-mud small material for compounding of polycarboxylate superplasticizer and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610262344.9A CN105924026A (en) | 2016-04-26 | 2016-04-26 | Anti-mud small material for compounding of polycarboxylate superplasticizer and application method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106810099A (en) * | 2016-12-06 | 2017-06-09 | 湖北工业大学 | A kind of anti-mud agent composition for cement-based gelling material |
| CN109534715A (en) * | 2018-12-14 | 2019-03-29 | 南京福盛建材有限公司 | A kind of anti-chamotte mould polycarboxylate water-reducer and preparation method thereof |
| CN109704629A (en) * | 2019-03-06 | 2019-05-03 | 马永胜 | A kind of concrete pump-feed agent |
| CN114380528A (en) * | 2021-12-21 | 2022-04-22 | 山西佳维新材料股份有限公司 | Anti-mud agent for concrete and preparation method thereof |
| CN115108751A (en) * | 2022-07-14 | 2022-09-27 | 武汉工程大学 | Dispersant for premixed fluid solidified soil and preparation method and application thereof |
| WO2023030666A1 (en) * | 2021-08-31 | 2023-03-09 | Fosroc Yapi Kimyasallari Sanayi Ve Ticaret Anonim Sirketi | Concrete admixtures |
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| CN104446089A (en) * | 2014-11-27 | 2015-03-25 | 湖北工业大学 | Concrete mud retarder based on clay mineral flocculation and preparation method thereof |
| CN104891853A (en) * | 2015-06-05 | 2015-09-09 | 陕西友邦新材料科技有限公司 | Composite anti-mud agent based on polycarboxylate-type pumping agent, anti-mud pumping agent and preparation method of anti-mud pumping agent |
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| CN106810099A (en) * | 2016-12-06 | 2017-06-09 | 湖北工业大学 | A kind of anti-mud agent composition for cement-based gelling material |
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| CN109534715A (en) * | 2018-12-14 | 2019-03-29 | 南京福盛建材有限公司 | A kind of anti-chamotte mould polycarboxylate water-reducer and preparation method thereof |
| CN109534715B (en) * | 2018-12-14 | 2021-05-28 | 南京福盛新材料有限公司 | Anti-mud polycarboxylate superplasticizer and preparation method thereof |
| CN109704629A (en) * | 2019-03-06 | 2019-05-03 | 马永胜 | A kind of concrete pump-feed agent |
| WO2023030666A1 (en) * | 2021-08-31 | 2023-03-09 | Fosroc Yapi Kimyasallari Sanayi Ve Ticaret Anonim Sirketi | Concrete admixtures |
| CN114380528A (en) * | 2021-12-21 | 2022-04-22 | 山西佳维新材料股份有限公司 | Anti-mud agent for concrete and preparation method thereof |
| CN115108751A (en) * | 2022-07-14 | 2022-09-27 | 武汉工程大学 | Dispersant for premixed fluid solidified soil and preparation method and application thereof |
| US11905221B2 (en) | 2022-07-14 | 2024-02-20 | Wuhan Institute Of Technology | Dispersant for premixed fluidized solidified soil, preparation method and application thereof |
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