CN112094070A - Huaqiansu and self-compacting concrete preparation technology - Google Patents
Huaqiansu and self-compacting concrete preparation technology Download PDFInfo
- Publication number
- CN112094070A CN112094070A CN201910520350.3A CN201910520350A CN112094070A CN 112094070 A CN112094070 A CN 112094070A CN 201910520350 A CN201910520350 A CN 201910520350A CN 112094070 A CN112094070 A CN 112094070A
- Authority
- CN
- China
- Prior art keywords
- weight
- parts
- self
- compacting concrete
- huaqiansu
- Prior art date
- 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.)
- Pending
Links
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
- 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
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The standardized preparation technology of the huaqiansu and the self-compacting concrete comprises the steps of preparing huaqiansu and the self-compacting concrete; mixing 475 parts by weight of cement clinker, 75 parts by weight of semi-hydrated gypsum, 227 parts by weight of polycarboxylic acid, 115 parts by weight of calcium formate, 95 parts by weight of active micro powder, 20 parts by weight of plastic expanding agent, 20 parts by weight of defoaming agent and 4.5 parts by weight of cellulose ether according to a proportion to obtain the Huaqiansu of the invention; adding 15-17.7 parts by weight of water, 50 parts by weight of P.O42.5 ordinary portland cement, 75 parts by weight of sand (with the particle size of 0.16-4.75mm) and 37.5-60 parts by weight of stones (with the particle size of 5-16mm) into 1 part by weight of huaqian plain to prepare a mixture, and stirring the mixture into concrete to obtain the self-compacting concrete with the strength grade of C30-C60. The new process for preparing the self-compacting concrete aims to provide a new process for preparing the self-compacting concrete required by engineering, namely, the self-compacting concrete can be prepared by only mixing the Huaqiansu, the cement, the sand and the water according to a certain proportion.
Description
Technical Field
The invention relates to huaqiansu and self-compacting concrete.
Technical Field
The existing self-compacting concrete preparation method has the problems of excessive raw material types, different raw material specification and quality, large calculated amount of raw material mixing ratio, difficulty in metering and weighing during production, difficulty in uniformly stirring during mixing, difficulty in controlling adaptability of raw materials, cement and gravel and the like. The Huaqiansu realizes the mixing production process of four raw materials of Huaqiansu, cement, sand and stone and water. The preparation technology of mixing the Huaqian element with cement, sand and stone and water in proportion completely meets the technical requirements of self-compacting concrete production, and the product is stable, has increased slump, improved early strength, no shrinkage, cracking resistance, high compactness, impermeability, water resistance and low-temperature construction performance in winter.
Disclosure of Invention
The invention aims to provide a novel process for preparing self-compacting concrete, which can prepare the self-compacting concrete required by engineering by only mixing Huaqiansu, cement, sandstone and water according to a certain proportion.
The Huaqiansu is prepared by mixing 470-480 parts by weight of cement clinker, 75-80 parts by weight of hemihydrate gypsum, 220-230 parts by weight of polycarboxylic acid, 120 parts by weight of 110-120 parts by weight of calcium formate, 90-95 parts by weight of active micro powder, 15-20 parts by weight of plastic expanding agent, 15-20 parts by weight of defoaming agent and 4-5 parts by weight of cellulose ether.
The Huaqiansu is prepared by mixing 475 parts by weight of cement clinker, 75 parts by weight of semi-hydrated gypsum, 227 parts by weight of polycarboxylic acid, 115 parts by weight of calcium formate, 95 parts by weight of active micro powder, 20 parts by weight of plastic expanding agent, 20 parts by weight of defoaming agent and 4.5 parts by weight of cellulose ether according to a proportion.
The self-compacting concrete comprises alexandrine;
the Huaqiansu is prepared by mixing 470-480 parts by weight of cement clinker, 75-80 parts by weight of hemihydrate gypsum, 220-230 parts by weight of polycarboxylic acid, 110-120 parts by weight of calcium formate, 90-95 parts by weight of active micro powder, 15-20 parts by weight of plastic expanding agent, 15-20 parts by weight of defoaming agent and 4-5 parts by weight of cellulose ether;
the Huaqian element is prepared by mixing 475 parts by weight of cement clinker, 75 parts by weight of semi-hydrated gypsum, 227 parts by weight of polycarboxylic acid, 115 parts by weight of calcium formate, 95 parts by weight of active micro powder, 20 parts by weight of plastic expanding agent, 20 parts by weight of defoaming agent and 4.5 parts by weight of cellulose ether according to a proportion;
the self-compacting concrete of the invention adopts the following components:
adding water 15 parts by weight, ordinary Portland cement 50 parts by weight, sand 75 parts by weight (particle size is 0.16-4.75mm) and gravel 37.5 parts by weight (particle size is 5-16mm) into Huaqian Su 1 part by weight, blending, and stirring to obtain the self-compacting concrete with strength grade not lower than C60;
adding 15.5 parts by weight of water, 50 parts by weight of P.O42.5 ordinary portland cement, 75 parts by weight of sand (particle size of 0.16-4.75mm) and 47 parts by weight of stones (particle size of 5-16mm) into 1 part by weight of huaqian plain, blending, and stirring the ingredients into concrete to obtain the self-compacting concrete with the strength grade of not less than C50;
adding 16 parts by weight of water, 50 parts by weight of P.O42.5 ordinary portland cement, 75 parts by weight of sand (particle size of 0.16-4.75mm) and 54 parts by weight of stones (particle size of 5-16mm) into 1 part by weight of huaqian pigment, mixing, and stirring the mixture into concrete to obtain the self-compacting concrete with the strength grade of not less than C40;
the self-compacting concrete with the strength grade not lower than C30 can be obtained by adding 17.7 parts by weight of water, 50 parts by weight of P.O42.5 ordinary portland cement, 75 parts by weight of sand (with the particle size of 0.16-4.75mm) and 60 parts by weight of stones (with the particle size of 5-16mm) into 1 part by weight of huaqian plain, blending the materials and stirring the mixture into concrete.
Experiments show that the Huaqian element has strong adaptability to cement and sandstone, the self-compacting concrete with different grades prepared by adopting the Huaqian element technology can completely meet the production and construction requirements, and compared with the traditional preparation method, the preparation method has the advantages of small production workload, high mixing production efficiency, labor saving, stable quality and the like.
The preparation technology of the Huaqiansu and the self-compacting concrete of the invention is further explained below.
Detailed Description
The invention relates to a Huaqiansu which comprises the following steps:
mixing 475 parts by weight of cement clinker, 75 parts by weight of semi-hydrated gypsum, 227 parts by weight of polycarboxylic acid, 115 parts by weight of calcium formate, 95 parts by weight of active micro powder, 20 parts by weight of plastic expanding agent, 20 parts by weight of defoaming agent and 4.5 parts by weight of cellulose ether according to a proportion to prepare the cement clinker;
the Huaqiansu is characterized in that: a gray ultra-fine powder;
the Huaqian is preferably packaged by waterproof and moistureproof plastic woven bags and stored in a shady and dry ventilated place to avoid solarization, rain, water and moisture;
the Huaqiansu does not contain heavy metal, benzene series, halogenated hydrocarbon, formaldehyde and other volatile harmful substances, is non-combustible, non-explosive, non-toxic and tasteless, and meets the requirements of environmental protection.
The preparation technology of the self-compacting concrete comprises the following steps:
adding water 15 parts by weight, ordinary Portland cement 50 parts by weight, sand 75 parts by weight (particle size is 0.16-4.75mm) and gravel 37.5 parts by weight (particle size is 5-16mm) into Huaqian Su 1 part by weight, blending, and stirring to obtain the self-compacting concrete with strength grade not lower than C60;
adding 15.5 parts by weight of water, 50 parts by weight of P.O42.5 ordinary portland cement, 75 parts by weight of sand (particle size of 0.16-4.75mm) and 47 parts by weight of stones (particle size of 5-16mm) into 1 part by weight of huaqian plain, blending, and stirring the ingredients into concrete to obtain the self-compacting concrete with the strength grade of not less than C50;
adding 16 parts by weight of water, 50 parts by weight of P.O42.5 ordinary portland cement, 75 parts by weight of sand (particle size of 0.16-4.75mm) and 54 parts by weight of stones (particle size of 5-16mm) into 1 part by weight of huaqian pigment, mixing, and stirring the mixture into concrete to obtain the self-compacting concrete with the strength grade of not less than C40;
the self-compacting concrete with the strength grade not lower than C30 can be obtained by adding 17.7 parts by weight of water, 50 parts by weight of P.O42.5 ordinary portland cement, 75 parts by weight of sand (with the particle size of 0.16-4.75mm) and 60 parts by weight of stones (with the particle size of 5-16mm) into 1 part by weight of huaqian plain, blending the materials and stirring the mixture into concrete.
Experiments prove that compared with common concrete, the self-compacting concrete prepared by the self-compacting concrete preparation technology has the following advantages: (1) large slump and large fluidity, and can be constructed without vibration: the pouring time is shortened, the labor intensity of workers is reduced, the number of constructors is reduced, and the improvement is realized; (2) no shrinkage, micro-expansion, crack resistance: has plastic shrinkage compensation and anti-fragmentation capability, can effectively inhibit cracking, and avoids hardening and deformationForming and expanding the die; (3) the early strength rises quickly: the formwork removal time and the maintenance time can be shortened, and the turnover rate and the construction period progress of the formwork are provided; (4) the fatigue resistance and the durability are good: after 100-300 ten thousand fatigue tests, 50 freeze-thaw cycle tests and 3000-hour anti-aging tests, appearance damage does not occur; (5) oil resistance, acid resistance, alkali resistance, salt resistance and harmful gas corrosion resistance: after the steel bar is soaked in the engine oil for 30 days, the strength is improved by more than 10 percent compared with that before the oil is soaked, the built-in steel bar has no corrosion phenomenon after long-time sulfate and chloride repeated tests, and after 28 days, the R.H.70 percent and 20 percent of CO concentration2In an isolation test, no carbonization is found on the surface of the concrete; (6) strong penetrating power: the structure with complex shape, thin wall and dense reinforcement can be poured; (7) high compactness, water resistance and impermeability: the material has extremely low porosity, and can block water permeation; (8) low-temperature construction capacity in winter: can be normally constructed at the ambient temperature of minus 10 ℃.
The above description is only for the purpose of describing the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention are intended to fall within the scope of the present invention defined by the claims.
Claims (6)
1. Huaqiansu, its characterized in that: superfine grey powder
The gray superfine powder consists of 470-480 parts by weight of cement clinker, 75-80 parts by weight of hemihydrate gypsum, 220-230 parts by weight of polycarboxylic acid, 110-120 parts by weight of calcium formate, 90-95 parts by weight of active micro powder, 15-20 parts by weight of plastic expanding agent, 15-20 parts by weight of defoaming agent and 4-5 parts by weight of cellulose ether. Mixing them uniformly according to a certain proportion so as to obtain the invented product Huaqiansu.
2. Wakame according to claim 1, characterized in that: the gray superfine powder is prepared by mixing 470-480 parts by weight of cement clinker, 75-80 parts by weight of hemihydrate gypsum, 220-230 parts by weight of polycarboxylic acid, 110-120 parts by weight of calcium formate, 90-95 parts by weight of active micro powder, 15-20 parts by weight of plastic expanding agent, 15-20 parts by weight of defoaming agent and 4-5 parts by weight of cellulose ether according to the proportion.
3. Wakame according to claim 2, characterized in that: the gray ultrafine powder is prepared by mixing 475 parts by weight of cement clinker, 75 parts by weight of semi-hydrated gypsum, 227 parts by weight of polycarboxylic acid, 115 parts by weight of calcium formate, 95 parts by weight of active micro powder, 20 parts by weight of plastic expanding agent, 20 parts by weight of defoaming agent and 4.5 parts by weight of cellulose ether according to a proportion.
4. Self-compacting concrete, its characterized in that: comprises alexandrin, ordinary silicon cement and sand;
the Huaqiansu is prepared by mixing 470-480 parts by weight of cement clinker, 75-80 parts by weight of hemihydrate gypsum, 220-230 parts by weight of polycarboxylic acid, 110-120 parts by weight of calcium formate, 90-95 parts by weight of active micro powder, 15-20 parts by weight of plastic expanding agent, 15-20 parts by weight of defoaming agent and 4-5 parts by weight of cellulose ether according to the proportion;
the self-compacting concrete with the strength grade not lower than C60 can be obtained by adding water 15 weight parts, ordinary Portland cement 50 weight parts, sand 75 weight parts (with the grain diameter of 0.16-4.75mm) and stone 37.5 weight parts (with the grain diameter of 5-16mm) into Huaqian Su 1 weight part, blending and stirring the ingredients into concrete.
The self-compacting concrete with the strength grade not lower than C50 can be obtained by adding water 15.5 parts by weight, ordinary Portland cement 50 parts by weight, sand 75 parts by weight (with the grain diameter of 0.16-4.75mm) and stones 47 parts by weight (with the grain diameter of 5-16mm) into watson 1 part by weight, blending and stirring the ingredients into concrete.
The self-compacting concrete with the strength grade not lower than C40 can be obtained by adding 16 parts by weight of water, 50 parts by weight of P.O42.5 ordinary portland cement, 75 parts by weight of sand (with the particle size of 0.16-4.75mm) and 54 parts by weight of stones (with the particle size of 5-16mm) into 1 part by weight of huaqian plain, blending the ingredients and stirring the mixture into concrete.
The self-compacting concrete with the strength grade not lower than C30 can be obtained by adding 17.7 parts by weight of water, 50 parts by weight of P.O42.5 ordinary portland cement, 75 parts by weight of sand (with the particle size of 0.16-4.75mm) and 60 parts by weight of stones (with the particle size of 5-16mm) into 1 part by weight of huaqian plain, blending the materials and stirring the mixture into concrete.
5. The self-compacting concrete according to claim 4, characterized in that: the Huaqiansu is prepared by mixing 470-480 parts by weight of cement clinker, 75-80 parts by weight of hemihydrate gypsum, 220-230 parts by weight of polycarboxylic acid, 110-120 parts by weight of calcium formate, 90-95 parts by weight of active micro powder, 15-20 parts by weight of plastic expanding agent, 15-20 parts by weight of defoaming agent and 4-5 parts by weight of cellulose ether according to the proportion; the self-compacting concrete is prepared by mixing 1 weight part of huaqian plain, 15-17.7 weight parts of water, 50 weight parts of P.O42.5 ordinary portland cement, 75 weight parts of sand (with the particle size of 0.16-4.75mm) and 37.5-60 weight parts of stones (with the particle size of 5-16mm) according to a proportion.
6. Huaqian element according to claim 5, characterized in that: the Huaqian element is prepared by mixing 475 parts by weight of cement clinker, 75 parts by weight of semi-hydrated gypsum, 227 parts by weight of polycarboxylic acid, 115 parts by weight of calcium formate, 95 parts by weight of active micro powder, 20 parts by weight of plastic expanding agent, 20 parts by weight of defoaming agent and 4.5 parts by weight of cellulose ether according to a proportion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910520350.3A CN112094070A (en) | 2019-06-17 | 2019-06-17 | Huaqiansu and self-compacting concrete preparation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910520350.3A CN112094070A (en) | 2019-06-17 | 2019-06-17 | Huaqiansu and self-compacting concrete preparation technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112094070A true CN112094070A (en) | 2020-12-18 |
Family
ID=73748383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910520350.3A Pending CN112094070A (en) | 2019-06-17 | 2019-06-17 | Huaqiansu and self-compacting concrete preparation technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112094070A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06219809A (en) * | 1993-01-29 | 1994-08-09 | Sumitomo Cement Co Ltd | Production of self-packing concrete |
| CN103803918A (en) * | 2013-12-20 | 2014-05-21 | 同济大学 | Porcelain powder waste mixed cement-based tiny-expansion crack repairing mortar and using method thereof |
| CN104386986A (en) * | 2014-10-23 | 2015-03-04 | 广西南宁柏睿通合成建材科技有限公司 | Ultra-high-strength track cement gum and prepared method thereof |
| CN107117918A (en) * | 2016-02-25 | 2017-09-01 | 张彬 | A kind of quick setting and rapid hardening ungauged regions disturbance rejection self-compacting concrete and preparation method thereof |
| CN108328977A (en) * | 2018-03-23 | 2018-07-27 | 常德市万福达环保节能建材有限公司 | A kind of concrete repairing material |
| CN109053013A (en) * | 2018-09-06 | 2018-12-21 | 中建西部建设新疆有限公司 | Concrete material, concrete composite powder and preparation method thereof |
-
2019
- 2019-06-17 CN CN201910520350.3A patent/CN112094070A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06219809A (en) * | 1993-01-29 | 1994-08-09 | Sumitomo Cement Co Ltd | Production of self-packing concrete |
| CN103803918A (en) * | 2013-12-20 | 2014-05-21 | 同济大学 | Porcelain powder waste mixed cement-based tiny-expansion crack repairing mortar and using method thereof |
| CN104386986A (en) * | 2014-10-23 | 2015-03-04 | 广西南宁柏睿通合成建材科技有限公司 | Ultra-high-strength track cement gum and prepared method thereof |
| CN107117918A (en) * | 2016-02-25 | 2017-09-01 | 张彬 | A kind of quick setting and rapid hardening ungauged regions disturbance rejection self-compacting concrete and preparation method thereof |
| CN108328977A (en) * | 2018-03-23 | 2018-07-27 | 常德市万福达环保节能建材有限公司 | A kind of concrete repairing material |
| CN109053013A (en) * | 2018-09-06 | 2018-12-21 | 中建西部建设新疆有限公司 | Concrete material, concrete composite powder and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108046712B (en) | High-strength low-resilience-rate sprayed concrete and construction process thereof | |
| CN104844099B (en) | A kind of lower shrinkage low viscosity super high strength concrete | |
| CN109369097B (en) | Low-shrinkage low-creep anti-cracking high-performance mass concrete | |
| CN102276224B (en) | Marine engineering self-compacting high-performance concrete and preparation method thereof | |
| CN110776289B (en) | Light high-strength ceramsite concrete and preparation method and application thereof | |
| CN110734257A (en) | Preparation method of high impervious concrete | |
| CN106966687A (en) | One kind is without strong cohesive force phosphate cement patching material of mobility rapid hardening and preparation method thereof | |
| CN109608068A (en) | A kind of cementitious material, the preparation method of precast concrete and precast concrete | |
| CN110304876A (en) | A kind of complete gently haydite concrete and preparation method thereof | |
| CN105272020B (en) | A kind of heat resistance is 500 DEG C of C40 pump concretes | |
| CN106587788A (en) | Low-cement-content self-compacting concrete and preparation method thereof | |
| CN110498630B (en) | Concrete composite additive, preparation method thereof and concrete | |
| CN103922662A (en) | Ultra-high performance cement base composite material | |
| CN109503055A (en) | A kind of self-compacting concrete and preparation method thereof | |
| CN111620619A (en) | C70 self-compacting shrinkage-compensating concrete filled steel tube and preparation method thereof | |
| CN108328977B (en) | Concrete repairing material | |
| CN102173684A (en) | Concrete prepared from tunnel waste slag and high-content mineral admixture and preparation method | |
| CN101343151A (en) | PHC pipe pile cement and preparation thereof | |
| CN102887716A (en) | Self-compaction refractory concrete | |
| CN106477989A (en) | A kind of high-strength concrete adapting to wet environment and preparation method | |
| CN107382216A (en) | Fill high-strength concrete of iron tailings and building waste and preparation method thereof | |
| CN104891884A (en) | C35 low-gel-material self-compacting concrete and preparation method thereof | |
| CN107500648A (en) | A kind of high intensity RPC and preparation method thereof | |
| CN110066158A (en) | Lightweight self-compacting concrete and preparation method thereof | |
| CN108911656A (en) | Non-evaporating curing concrete and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Wen Jianzhong Document name: Notification to Make Rectification |
|
| DD01 | Delivery of document by public notice | ||
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201218 |
|
| WD01 | Invention patent application deemed withdrawn after publication |