CN108191295A - A kind of concrete thinner and preparation method thereof - Google Patents
A kind of concrete thinner and preparation method thereof Download PDFInfo
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- CN108191295A CN108191295A CN201810041792.5A CN201810041792A CN108191295A CN 108191295 A CN108191295 A CN 108191295A CN 201810041792 A CN201810041792 A CN 201810041792A CN 108191295 A CN108191295 A CN 108191295A
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- parts
- concrete
- sodium
- thinner
- microballon
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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
- C04B40/0042—Powdery mixtures
Abstract
A kind of concrete thinner is related to the external additive in a kind of concrete for applying to the strong ultra-large type of superelevation, the thinner in more particularly to a kind of concrete for applying to the strong ultra-large type of superelevation.The present invention is mainly formed by flyash, with into microballon, polycarboxylic acids, polyorganosiloxane resin, neopelex, sodium phosphate, sodium sulphate, dihydrate gypsum, sodium gluconate.This thinner adds in emollient component, water-reducing agent, air entraining agent, surfactant and certain enhancing component and is designed, this visbreaking agent can effectively reduce the viscosity of concrete and every performance of concrete is not impacted.And this thinner has already passed through practical detection and has obtained extensive utilization.
Description
Technical field
The present invention relates to the external additive in a kind of concrete for applying to the strong ultra-large type of superelevation, more particularly to a kind of fortune
For the thinner in the concrete of the strong ultra-large type of superelevation.
Background technology
In recent years, with the rapid development of China's economy and being constantly progressive for concrete field, current concreter
The journey of requirement during the construction and use of to(for) concrete performance is higher and higher, and the strong concrete of ultra-large type superelevation is increasingly
Widely paid close attention to.And due to building requirements superhigh intensity in the work progress of such building, in mixing process
In often through using the cement of high intensity, increase cement consumption, improve gel rubber material content, reduce the methods of ratio of mud and carry
The intensity of high concrete building.But this kind of operation also has certain drawbacks, this kind of operation can greatly improve mixed
It is uneven so as to which concrete be caused to be mixed and stirred during mixing and stirring to coagulate the viscosity of soil, loses the problems such as fast.In addition to this, it is highly viscous mixed
Solidifying soil can not also ensure the mobility and slump of concrete.Therefore in the performance for ensureing ultra-large type super high strength concrete,
How to effectively reduce the viscosity of concrete is urgent problem.And in numerous concrete admixtures, thinner makes
With can greatly just improve the problem of concrete viscosity is excessively high.
China Patent Publication No. CN104529225A discloses a kind of high and super high strength concrete thinner, preparation method
And its application, the ingredients such as nano particle, sulfate, carbonate, function additive, drop prepared by the present invention are devised in this patent
Stick can effectively improve the workability of concrete, effectively solve the problem of that the big constructional difficulties of concrete viscosity simultaneously can
The effective mechanical property and endurance quality for improving concrete.
China Patent Publication No. CN106478893A discloses a kind of preparation method of concrete viscous regulator, at this specially
First acrylamide with acrylic acid in redox system is copolymerized in profit, crosslinking agent is added on basis herein and improves polymerization
The molecular weight of object introduces the groups such as carboxyl, amide group, aliphatic radical in this polymer, and the introducing of this kind of group has one
Fixed water-reduction, guarantor's effect of collapsing is good, and current year conditioning agent good water solubility, it is easy to use and can with it is common poly-
Carboxylic acid water reducer has good compatibility.
Invention content
The defects of purpose of the present invention is intended to overcome the prior art provides a kind of addition emollient component, water-reducing agent, bleed
Agent, surfactant and enhancing component can effectively reduce the viscosity of concrete and the items of concrete used
The concrete thinner that performance does not impact.
Concrete thinner of the present invention, mainly by flyash, with into microballon, polycarboxylic acids, polyorganosiloxane resin, ten
Dialkyl benzene sulfonic acids sodium, sodium phosphate, sodium sulphate, dihydrate gypsum, sodium gluconate composition, composition by weight are：Flyash 180-
220 parts, with into 18-22 parts of microballon, 8-12 parts of polycarboxylic acids, 0.001-0.002 parts of polyorganosiloxane resin, neopelex
0.001-0.002 parts, 0.2-0.4 parts of sodium phosphate, 3-7 parts of sodium sulphate, 2-4 parts of dihydrate gypsum, 18-22 parts of sodium gluconate.
The composition by weight of the component is：200 parts of flyash, with into 20 parts of microballon, 10 parts of polycarboxylic acids, polyorganosiloxane resin
0.001 part, 0.001 part of neopelex, 0.3 part of sodium phosphate, 5 parts of sodium sulphate, 3 parts of dihydrate gypsum, sodium gluconate
20 parts.
Concrete thinner of the present invention, preparation method are：
A, it stocks up by component, cleans powder stirrer, and check powder stirrer normal operation；
B, flyash is separately added into dry powder reaction kettle, with into microballon, polycarboxylic acids, part polyorganosiloxane resin, detergent alkylate
Sodium sulfonate, sodium phosphate, sodium sulphate, dihydrate gypsum, sodium gluconate.
C, powder stirrer is opened, mixing speed is adjusted to 30 rpms and is stirred 10 minutes, it after ten minutes will stirring
Speed is adjusted to 40 rpms.
D, the head product of reaction is moved in material storage kettle after material stirring is uniform and stored for future use.
The present invention is re-introduced into micro- in specific preparation process using flyash as the base-material prepared, and herein on basis
Meter level it is same into microballon, diminishing component, dispersed component, enhancing component, the auxiliary components such as bleed component be prepared by mixing into it is mixed
The thinner of soil is coagulated, the specific features of institute's reagent adding are as follows：
1st, flyash：System is mixed and stirred in concrete, gap between stone can preferably be filled by adding sand, but one
The content of sand, which crosses conference, in system causes the viscosity of system to increase, and flyash is added in thinner as base-material, fine coal
The addition of ash can effectively reduce the viscosity in reaction system, and the addition of flyash can effectively reduce making for sand
Dosage is so as to effectively reduce the viscosity of system.
2nd, it is main into being divided into shown in following table with being a series of summaries to mixing salts into microballon：
| Chemical composition % | SiO2 | CaO | MgO | Al2O3 | Fe2O3 | Na2O | K2O | SO3 | C |
| With into microballon | 56.5 | 4.8 | 1.3 | 26.5 | 5.3 | 1.4 | 3.28 | 0.65 | ＜ 1 |
With being to be all just spherical micron order material into microballon, the specific glutinous effect of drop mainly has following mechanism：First,
With can be that concrete bring fabulous " ball lubrication " effect into adding in for microballon, the mobility between increase system be to reduce
The viscosity of system；Second, micron-sized material can be good at filling gap between concrete particle so as to increase concrete
Compactness release Free water and achieve the effect that reduction system viscosity, and good filling effect also is able to effectively reduce
The capillary micropore being harmful in concrete system is so as to effectively increase the intensity of system；Third, can have with the addition into microballon
Effect is ensureing that concrete has under identical slump and the premise of expansion condition, is that the shear stress of concrete is substantially reduced
The plastic viscosity of concrete and rewinding time are reduced so as to reach.In addition to this, it also is able to effectively with the addition into microballon
It cooperates with diminishing auxiliary agent and generates good superposition, have good water-reducing effect can greatly water in reduction system
The use of amount.
3rd, polycarboxylic acids：Polycarboxylic acids is the high efficiency water reducing agent for having on the market at present good water-reducing effect, can be effective
The incorporation of water in reduction system.And the preparation of thinner selects polycarboxylic acids as its energy of diminishing component in this system in using
Enough effectively with occurring to act synergistically so as to strengthen the water-reducing effect of thinner, and polycarboxylic acids also has centainly with into microballon
Slow setting effect, slowing down the setting rate of concrete will make moderate progress to the intensity of concrete system.
4th, polyorganosiloxane resin：Polyorganosiloxane resin is good acidproof, and corrosion-resistant, large arch dam, volatility is low and is
Good environmentally friendly material, polyorganosiloxane resin can effectively increase because with the siloxane chain containing hydrophobic grouping
The content of free water in many body system has good peptizaiton.
5th, neopelex：Neopelex is the bleed component in thinner, and bleed component adds
To enter effectively to be introduced into small uniform minute bubbles can not only improving during concrete mixes and stirs and easy in system
Property but also there can be certain enhancing effect to concrete.In addition to this, the addition of minute bubbles also is able to effectively increase mixed
The lubricity of soil is coagulated so as to the viscosity in reduction system.
6th, sodium phosphate：Sodium phosphate is good inorganic slow setting component, and the addition of slow setting component can effectively control cement
The slow setting carried out in zone of reasonableness when occurring to dodge coagulation phenomena, and being hardened to concrete coagulation can effectively increase concrete coagulation
Time is so as to enhance the intensity of concrete.
7th, sodium sulphate：Sodium sulphate is inorganic enhancing component, and the addition of sodium sulphate can effectively enhance the early stage of concrete
Intensity and the Later development intensity that can effectively ensure concrete introduce sulfate ion, the introducing of sulfate radical in system
Can effectively in quickening system the hydration rate of cement so as to improve the early strength of cement.
8th, dihydrate gypsum：Dihydrate gypsum is the helper component of sodium sulphate, since sodium sulphate is in air and in thinner
The influence of moisture is highly prone in system and condenses hardening so as to be had an impact to the enhancing effect of sodium sulphate, and dihydrate gypsum
It then can effectively solve the problems, such as this, dihydrate gypsum is the carrier of sodium sulphate, can effectively prevent sodium sulphate due to becoming tide
Inactivation.
9th, sodium gluconate：Certain sodium gluconate is added in concrete can increase the plasticity of concrete and strong
Degree, and can effectively extend the setting time of concrete, and sodium gluconate also has certain peptizaiton, it can be effective
Water consumption in reduction system.
Visbreaking agent prepared by the present invention have passed through practical concrete and mix and stir detection at present and be used in practical build
It builds in engineering, selects the Portland cement of 52.5 types, and the concrete with only adding ordinary water-reducing agent is used
Comparison in performance, and it is as shown in the table using the performance detection index of concrete prepared by different additives：
It can explicitly be found out by specific correction data, be added to the concrete of thinner prepared by the present invention and ensureing coagulation
On the basis of the performances such as native intensity, the slump, setting time, the consistency for adding the concrete of thinner is relatively low, with good
The good intensity mixed and stirred workability and fluidity, and setting time is longer, can effectively enhance concrete.
Specific embodiment
With reference to embodiment, the present invention is described further, but not limited to the examples.
Embodiment 1
Concrete thinner of the present invention, mainly by flyash, with into microballon, polycarboxylic acids, polyorganosiloxane resin, dodecane
Base benzene sulfonic acid sodium salt, sodium phosphate, sodium sulphate, dihydrate gypsum, sodium gluconate composition, the composition by weight of the component are：Flyash
200 parts, with into 20 parts of microballon, 10 parts of polycarboxylic acids, 0.001 part of polyorganosiloxane resin, 0.001 part of neopelex, phosphorus
Sour 0.3 part of sodium, 5 parts of sodium sulphate, 3 parts of dihydrate gypsum, 20 parts of sodium gluconate.
Embodiment 2
Concrete thinner of the present invention, mainly by flyash, with into microballon, polycarboxylic acids, polyorganosiloxane resin, dodecane
Base benzene sulfonic acid sodium salt, sodium phosphate, sodium sulphate, dihydrate gypsum, sodium gluconate composition, composition by weight are：It is 180 parts of flyash, same
Into 18 parts of microballon, 8 parts of polycarboxylic acids, 0.001 part of polyorganosiloxane resin, 0.001 part of neopelex, 0.2 part of sodium phosphate,
3 parts of sodium sulphate, 2 parts of dihydrate gypsum, 18 parts of sodium gluconate.
Embodiment 3
Concrete thinner of the present invention, mainly by flyash, with into microballon, polycarboxylic acids, polyorganosiloxane resin, dodecane
Base benzene sulfonic acid sodium salt, sodium phosphate, sodium sulphate, dihydrate gypsum, sodium gluconate composition, composition by weight are：It is 220 parts of flyash, same
Into 22 parts of microballon, 12 parts of polycarboxylic acids, 0.002 part of polyorganosiloxane resin, 0.002 part of neopelex, sodium phosphate 0.4
Part, 7 parts of sodium sulphate, 4 parts of dihydrate gypsum, 22 parts of sodium gluconate.
Embodiment 4
Concrete thinner of the present invention, preparation method are：
A, it stocks up by component, cleans powder stirrer, and check powder stirrer normal operation；
B, it is separately added into that 200 parts of flyash, 20 parts the same as into microballon, 10 parts of polycarboxylic acids, 0.001 part of poly- silica in dry powder reaction kettle
Alkane resin, 0.01 part of neopelex, 0.3 part of sodium phosphate, 5 parts of sodium sulphate, 3 parts of dihydrate gypsums, 20 parts of gluconic acids
Sodium.
C, powder stirrer is opened, mixing speed is adjusted to 30 rpms and is stirred 10 minutes, it after ten minutes will stirring
Speed is adjusted to 40 rpms.
D, the head product of reaction is moved in material storage kettle after material stirring is uniform and stored for future use.
Claims (3)
1. a kind of concrete thinner, mainly by flyash, with into microballon, polycarboxylic acids, polyorganosiloxane resin, detergent alkylate sulphur
Sour sodium, sodium phosphate, sodium sulphate, dihydrate gypsum, sodium gluconate composition, which is characterized in that its composition by weight is：Flyash 180-
220 parts, with into 18-22 parts of microballon, 8-12 parts of polycarboxylic acids, 0.001-0.002 parts of polyorganosiloxane resin, neopelex
0.001-0.002 parts, 0.2-0.4 parts of sodium phosphate, 3-7 parts of sodium sulphate, 2-4 parts of dihydrate gypsum, 18-22 parts of sodium gluconate.
2. concrete thinner according to claim 1, which is characterized in that the composition by weight of the component is：Flyash
200 parts, with into 20 parts of microballon, 10 parts of polycarboxylic acids, 0.001 part of polyorganosiloxane resin, 0.001 part of neopelex, phosphorus
Sour 0.3 part of sodium, 5 parts of sodium sulphate, 3 parts of dihydrate gypsum, 20 parts of sodium gluconate.
3. concrete thinner according to claim 1, which is characterized in that concrete thinner of the present invention,
Preparation method is：
A, it stocks up by component, cleans powder stirrer, and check powder stirrer normal operation；
B, flyash is separately added into dry powder reaction kettle, with into microballon, polycarboxylic acids, part polyorganosiloxane resin, detergent alkylate
Sodium sulfonate, sodium phosphate, sodium sulphate, dihydrate gypsum, sodium gluconate；
C, powder stirrer is opened, mixing speed is adjusted to 30 rpms and is stirred 10 minutes, after ten minutes by mixing speed
It is adjusted to 40 rpms；
D, the head product of reaction is moved in material storage kettle after material stirring is uniform and stored for future use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810041792.5A CN108191295A (en) | 2018-01-16 | 2018-01-16 | A kind of concrete thinner and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810041792.5A CN108191295A (en) | 2018-01-16 | 2018-01-16 | A kind of concrete thinner and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108191295A true CN108191295A (en) | 2018-06-22 |
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ID=62589395
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810041792.5A Pending CN108191295A (en) | 2018-01-16 | 2018-01-16 | A kind of concrete thinner and preparation method thereof |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111574102A (en) * | 2020-05-08 | 2020-08-25 | 中铁大桥局集团有限公司 | Composite concrete viscosity reducing material and application thereof |
| CN114516743A (en) * | 2022-02-25 | 2022-05-20 | 华创建筑设计有限公司 | C100 multi-resin composite concrete prefabricated part and production process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1438197A (en) * | 2003-03-21 | 2003-08-27 | 林荫民 | Cement mortar additive |
| CN105417988A (en) * | 2015-12-30 | 2016-03-23 | 卓达新材料科技集团威海股份有限公司 | Early strength agent for ordinary portland cement fiber board |
| CN106316205A (en) * | 2015-07-07 | 2017-01-11 | 潘文进 | Concrete admixture composition |
| CN107417194A (en) * | 2017-09-07 | 2017-12-01 | 上海高铁化学建材有限公司 | A kind of post stressed concrete pipeline pneumatic mortar agent and preparation method thereof |
-
2018
- 2018-01-16 CN CN201810041792.5A patent/CN108191295A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1438197A (en) * | 2003-03-21 | 2003-08-27 | 林荫民 | Cement mortar additive |
| CN106316205A (en) * | 2015-07-07 | 2017-01-11 | 潘文进 | Concrete admixture composition |
| CN105417988A (en) * | 2015-12-30 | 2016-03-23 | 卓达新材料科技集团威海股份有限公司 | Early strength agent for ordinary portland cement fiber board |
| CN107417194A (en) * | 2017-09-07 | 2017-12-01 | 上海高铁化学建材有限公司 | A kind of post stressed concrete pipeline pneumatic mortar agent and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111574102A (en) * | 2020-05-08 | 2020-08-25 | 中铁大桥局集团有限公司 | Composite concrete viscosity reducing material and application thereof |
| CN114516743A (en) * | 2022-02-25 | 2022-05-20 | 华创建筑设计有限公司 | C100 multi-resin composite concrete prefabricated part and production process thereof |
| CN114516743B (en) * | 2022-02-25 | 2022-12-30 | 华创建筑设计有限公司 | C100 multi-resin composite concrete prefabricated part and production process thereof |
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Application publication date: 20180622 |
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