CN106316182B - Concrete early strength agent and preparation method thereof - Google Patents
Concrete early strength agent and preparation method thereof Download PDFInfo
- Publication number
- CN106316182B CN106316182B CN201610696789.8A CN201610696789A CN106316182B CN 106316182 B CN106316182 B CN 106316182B CN 201610696789 A CN201610696789 A CN 201610696789A CN 106316182 B CN106316182 B CN 106316182B
- Authority
- CN
- China
- Prior art keywords
- parts
- early strength
- strength agent
- concrete
- ball milling
- 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.)
- Active
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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/10—Accelerators; Activators
- C04B2103/12—Set accelerators
Abstract
The invention discloses a kind of concrete early strength agent and preparation method thereof, the early strength agent is made of each component of following weight：20~25 parts of CaO, Al2O320~25 parts, Nb2O54~6 parts, MgSO43~7 parts, 15~20 parts of blanc fixe, 15~20 parts of zeolite powder, Bi2O30.3~0.7 part, Li2CO31~3 part, 0.2~0.4 part of NaCl, 0.2~0.4 part of KCl.The preparation method be through being calcined at ball milling, 850 900 DEG C, again with the reagents ball milling such as calcium aluminum hydrotalcite, you can obtain concrete early strength agent.The present invention has the advantages that early strong effect is good, intensity is high, calcination temperature is low etc., is a kind of rising concrete admixture.
Description
Technical field
The present invention relates to a kind of concrete early strength agents and preparation method thereof, belong to technical field of concrete additives.
Background technology
With the rapid development of economy, role of the concrete in building also becomes more and more important, this is virtually right
Concrete proposes increasingly higher demands.In order to improve the performance of concrete and meet concrete construction needs, this field skill
Art personnel are often utilized in addition concrete admixture mode in concrete.Wherein, common concrete admixture, which has, subtracts
Aqua, retarder, early strength agent, waterproofing agent etc..
Early strength agent be it is a kind of can accelerate hydrated cementitious speed, improve early strength of concrete, and to later strength without aobvious
Write the additive influenced.According to chemical composition, it is broadly divided into inorganic early strength agent and organic early strength agent.Inorganic salts are early strong
Agent includes villaumite, sulfate, nitrite, silicate etc.；Organic early strength agent includes triethanolamine, calcium formate and urea
Deng.Inorganic salts early strength agent is that the scope of application is most wide and the preferable concrete early strength agent type of early strong effect, but villaumite and sulphur
The disadvantage of the early strength agent such as Barbiturates itself so that there are limitations for the application of such early strength agent；Organic species early strength agent itself is not
Concrete can be damaged, but organic species early strength agent reacts the more difficult assurance of dosage, and higher price, thus actually answering
It is seldom used alone in.
In order to promote the development of early strength agent, those skilled in the art carry out early strength agent deep exploration and research, and take
Obtain Research Achievement centainly, a kind of such as entitled " preparation method of low-density cement mortar early strength agent (Chinese patent application announcement
Number：CN104031624A patent) " discloses a kind of preparation method of low-density cement mortar early strength agent, described in early strength agent
Be by following components by weight：35~55 parts of CaO, Al2O331~58 parts, SiO25~10 parts, Fe2O35~10 parts, and
Through at ball milling, 1250-1400 DEG C calcine, again with Li2CO3Ball milling, you can obtain low-density cement mortar early strength agent.Although it can be obtained
Early strong effect centainly is obtained, but can't be satisfactory in terms of concrete application aspect, especially concrete strength.This
Outside, 1250-1400 DEG C of calcination temperature is relatively high, this virtually increases manufacturing cost, constrains morning to a certain extent
The development of strong agent.Therefore, continuing to explore is very important with research early strength agent.
Invention content
Middle early strength agent is to the technical problem of concrete strength aspect and calcination temperature deficiency, this hair for the above-mentioned prior art
It is bright that the technical problem to be solved is that propose a kind of concrete early strength agent that can be effectively improved intensity and reduce calcination temperature
And preparation method thereof.
A kind of concrete early strength agent is made of each component of following weight：20~25 parts of CaO, Al2O320~
25 parts, Nb2O54~6 parts, MgSO43~7 parts, 15~20 parts of blanc fixe, 15~20 parts of zeolite powder, Bi2O30.3~0.7
Part, Li2CO31~3 part, 0.2~0.4 part of NaCl, 0.2~0.4 part of KCl.
Preferably,
A kind of concrete early strength agent is made of each component of following weight：22 parts of CaO, Al2O323 parts,
Nb2O55 parts, MgSO45 parts, 18 parts of blanc fixe, 18 parts of zeolite powder, Bi2O30.5 part, Li2CO32 parts, 0.3 part of NaCl,
0.3 part of KCl.
The preparation method of the concrete early strength agent, includes the following steps：
1) it is component by weight by said components：Absolute ethyl alcohol：Zirconia ball=1:1:3 material is placed in rotating speed
Ball milling on the ball mill of 200~300 turns/min, 6~8h of ball milling；
2) it is sieved, dries, dry-pressing formed, demoulding in stainless steel mould is used in combination；And the sample after demoulding is placed in 850~
0.5~1h, natural cooling are calcined in 900 DEG C of Muffle furnaces；
3) 60~120 mesh powders are ground into, and are washed with deionized, until with AgNO3It examines until being generated without precipitation；
4) 4~8 parts of calcium aluminum hydrotalcites and 1~3 part of calcium sulphoaluminate, 30~40min of ball milling are sequentially added；
5) 0.1~0.3 part of sugar calcium and 0.1~0.3 part of polycarboxylate water-reducer, 20~30min of ball milling are sequentially added；
6) 1~3 part of calcium lignosulfonate and 0.3~0.7 part of nano-calcium carbonate are sequentially added, 20~30min of ball milling, i.e.,
Concrete early strength agent can be obtained；
The NaCl：KCl is 1：1.
Compared with prior art, the beneficial effects of the invention are as follows：
First, preparation method is different.The prior art is to be prepared using solid phase method, and the present invention is prepared using molten-salt growth method.
Solid phase method calcination temperature is high, and powder is easy to reunite, however molten-salt growth method can not only be such that calcination temperature reduces, the powder of preparation
Uniformity is good, helps to improve the early strong effect of concrete.Meanwhile being also designed in component, so that the intensity of concrete is carried
Height, the scope of application are wider；Secondly, Li2CO3Function different from.It not only has good early strong effect, also has hydrotropy
The effect of agent, is easy to form liquid phase in calcining, helps to reduce calcination temperature, reduces manufacturing cost；Again, Nb2O5With
Bi2O3Middle Nb5+、Bi3+Ion is high-valence cationic, and cohesion is strong, can be reacted with acceleration of hydration, and cement and concrete are promoted
Curing progress improves early strong effect；Finally, calcium aluminum hydrotalcite and nano-calcium carbonate are also added into.Calcium aluminum hydrotalcite can increase
The compactness of concrete improves impervious, reduction laminated segregation and excreting water phenomenon, to significantly improve early strength of concrete；
Nano-calcium carbonate has nucleating effect, can be used as active centre, promotes cement hydration process, improves concrete early intensity, together
When nano-calcium carbonate also there is filling effect, increase the compactness of concrete, improve early strength of concrete.
Specific implementation mode
The present invention provides a kind of concrete early strength agent and preparation method thereof, to achieve the object of the present invention, technical solution and
Effect is clearer, clear, and the present invention is described in more detail below.
A kind of concrete early strength agent is made of each component of following weight：20~25 parts of CaO, Al2O320~
25 parts, Nb2O54~6 parts, MgSO43~7 parts, 15~20 parts of blanc fixe, 15~20 parts of zeolite powder, Bi2O30.3~0.7
Part, Li2CO31~3 part, 0.2~0.4 part of NaCl, 0.2~0.4 part of KCl；
The preparation method of the concrete early strength agent, includes the following steps：
1) it is component by weight by said components：Absolute ethyl alcohol：Zirconia ball=1:1:3 material is placed in rotating speed
Ball milling on the ball mill of 200~300 turns/min, 6~8h of ball milling；
2) it is sieved, dries, dry-pressing formed, demoulding in stainless steel mould is used in combination；And the sample after demoulding is placed in 850~
0.5~1h, natural cooling are calcined in 900 DEG C of Muffle furnaces；
3) 60~120 mesh powders are ground into, and are washed with deionized, until with AgNO3It examines until being generated without precipitation；
4) 4~8 parts of calcium aluminum hydrotalcites and 1~3 part of calcium sulphoaluminate, 30~40min of ball milling are sequentially added；
5) 0.1~0.3 part of sugar calcium and 0.1~0.3 part of polycarboxylate water-reducer, 20~30min of ball milling are sequentially added；
6) 1~3 part of calcium lignosulfonate and 0.3~0.7 part of nano-calcium carbonate are sequentially added, 20~30min of ball milling, i.e.,
Concrete early strength agent can be obtained；
The NaCl：KCl is 1：1.
Specific implementation mode
Embodiment 1
A kind of concrete early strength agent is made of each component of following weight：22 parts of CaO, Al2O323 parts,
Nb2O55 parts, MgSO45 parts, 18 parts of blanc fixe, 18 parts of zeolite powder, Bi2O30.5 part, Li2CO32 parts, 0.3 part of NaCl,
0.3 part of KCl.
Embodiment 2
A kind of concrete early strength agent is made of each component of following weight：20 parts of CaO, Al2O320 parts,
Nb2O54 parts, MgSO43 parts, 15 parts of blanc fixe, 15 parts of zeolite powder, Bi2O30.3 part, Li2CO31 part, 0.2 part of NaCl,
0.2 part of KCl.
Embodiment 3
A kind of concrete early strength agent is made of each component of following weight：25 parts of CaO, Al2O325 parts,
Nb2O56 parts, MgSO47 parts, 20 parts of blanc fixe, 20 parts of zeolite powder, Bi2O30.7 part, Li2CO33 parts, 0.4 part of NaCl,
0.4 part of KCl.
Concrete early strength agent made from above-described embodiment 1-3 is tested for the property using the prior art, test result is such as
Shown in the following table 1：
1 early strength agent the performance test results of table
As can be seen that for the concrete early strength agent of different parameters preparation is with respect to background technology, there is low calcination temperature
With high compression strength, be conducive to the development of early strength agent.
Certainly, it is that the preferred embodiments of the disclosure is described in detail above, the present invention is not limited with this
Practical range, equivalence changes made by all principles under this invention, construction and structure should all be covered by the protection of the present invention
In range.
Claims (2)
1. a kind of concrete early strength agent, it is characterised in that：It is made of each component of following weight：20~25 parts of CaO,
Al2O320~25 parts, Nb2O54~6 parts, MgSO43~7 parts, 15~20 parts of blanc fixe, 15~20 parts of zeolite powder, Bi2O3
0.3~0.7 part, Li2CO31~3 part, 0.2~0.4 part of NaCl, 0.2~0.4 part of KCl, the NaCl：KCl is 1：1, it should
The preparation method of concrete early strength agent includes the following steps：
1) it is component by weight by said components：Absolute ethyl alcohol：Zirconia ball=1:1:3 material be placed in rotating speed be 200~
Ball milling on the ball mill of 300 turns/min, 6~8h of ball milling；
2) be sieved, dry, be used in combination stainless steel mould it is dry-pressing formed, demould；And the sample after demoulding is placed in 850~900 DEG C of horses
0.5~1h, natural cooling are not calcined in stove；
3) 60~120 mesh powders are ground into, and are washed with deionized, until with AgNO3It examines until being generated without precipitation；
4) 4~8 parts of calcium aluminum hydrotalcites and 1~3 part of calcium sulphoaluminate, 30~40min of ball milling are sequentially added；
5) 0.1~0.3 part of sugar calcium and 0.1~0.3 part of polycarboxylate water-reducer, 20~30min of ball milling are sequentially added；
6) 1~3 part of calcium lignosulfonate and 0.3~0.7 part of nano-calcium carbonate, 20~30min of ball milling are sequentially added, you can
To concrete early strength agent.
2. concrete early strength agent according to claim 1, it is characterised in that：By each component system of following weight
At：22 parts of CaO, Al2O323 parts, Nb2O55 parts, MgSO45 parts, 18 parts of blanc fixe, 18 parts of zeolite powder, Bi2O30.5 part,
Li2CO32 parts, 0.3 part of NaCl, 0.3 part of KCl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610696789.8A CN106316182B (en) | 2016-08-19 | 2016-08-19 | Concrete early strength agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610696789.8A CN106316182B (en) | 2016-08-19 | 2016-08-19 | Concrete early strength agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106316182A CN106316182A (en) | 2017-01-11 |
| CN106316182B true CN106316182B (en) | 2018-09-28 |
Family
ID=57742050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610696789.8A Active CN106316182B (en) | 2016-08-19 | 2016-08-19 | Concrete early strength agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106316182B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108947351B (en) * | 2018-08-08 | 2021-08-24 | 安徽理工大学 | Early-strength mining sealing material |
| CN109503112A (en) * | 2018-12-17 | 2019-03-22 | 濡ョ兢 | A kind of road and bridge concrete special and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126840A (en) * | 2011-03-02 | 2011-07-20 | 陈子川 | Low-temperature concrete early strength agent |
| CN103145362A (en) * | 2013-03-25 | 2013-06-12 | 中国矿业大学 | Method for preparing cement concrete early strength agent by using industrial residue |
| CN104031624A (en) * | 2014-06-20 | 2014-09-10 | 西南石油大学 | Preparation method of early strength agent of low-density cement slurry |
| CN105084799A (en) * | 2015-08-14 | 2015-11-25 | 盐城工学院 | Cement early-strength admixture and preparation method thereof |
| KR101625075B1 (en) * | 2014-12-11 | 2016-05-27 | 주식회사 케미콘 | Liquid concrete admixture and concrete composition for revealing early-strength comprising the same |
-
2016
- 2016-08-19 CN CN201610696789.8A patent/CN106316182B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126840A (en) * | 2011-03-02 | 2011-07-20 | 陈子川 | Low-temperature concrete early strength agent |
| CN103145362A (en) * | 2013-03-25 | 2013-06-12 | 中国矿业大学 | Method for preparing cement concrete early strength agent by using industrial residue |
| CN104031624A (en) * | 2014-06-20 | 2014-09-10 | 西南石油大学 | Preparation method of early strength agent of low-density cement slurry |
| KR101625075B1 (en) * | 2014-12-11 | 2016-05-27 | 주식회사 케미콘 | Liquid concrete admixture and concrete composition for revealing early-strength comprising the same |
| CN105084799A (en) * | 2015-08-14 | 2015-11-25 | 盐城工学院 | Cement early-strength admixture and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 《粉煤灰硅酸盐水泥早强剂的研究》;董超颖等;《中国陶瓷》;20121105;第48卷(第11期);第56页左栏倒数第1段-右栏第1段 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106316182A (en) | 2017-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102757193B (en) | Composite admixture for concrete | |
| CN106365491B (en) | Early strength agent and preparation method thereof for concrete | |
| CN106316182B (en) | Concrete early strength agent and preparation method thereof | |
| CN105985038B (en) | A kind of water-fast and sulfate attack inorganic coagulation material and preparation method thereof | |
| Kryvenko et al. | Alkali-sulfate activated blended portland cements | |
| CN108863265A (en) | A kind of light cellular partition board gypsum based composite | |
| CN104803644A (en) | Plastering mortar with kieselguhr and polyacrylamide serving as water-retaining agents and usage method of plastering mortar | |
| CN110194604A (en) | Tricalcium silicate-sulphur calcium silicates-sulphate aluminium cement and its low temperature preparation method | |
| CN112142412A (en) | Air-cooled inactive steel slag gypsum-based self-leveling mortar and preparation method thereof | |
| CN103979828B (en) | A kind of slag base concrete admixture function regulator and preparation method thereof | |
| CN104556785A (en) | Water-reducing metakaolin-based micro-expansion compacting agent and preparation method thereof | |
| Liu et al. | Investigation on strength and pore structure of supersulfated cement paste | |
| CN106365490B (en) | The preparation method of concrete early strength agent | |
| CN115611578B (en) | MOF dry-mixed mortar with early strength and low shrinkage and preparation method thereof | |
| CN106145848B (en) | Calcination-free desulfurized gypsum building mortar | |
| CN107892533A (en) | A kind of waterfront structure Grouting Cement mortar and its production method | |
| CN115286346B (en) | Method for adjusting setting time of high-strength full-solid waste cementing material | |
| CN115259723B (en) | High-durability alkali-free accelerator for foundation pit reinforcement and preparation method thereof | |
| CN109265041A (en) | A kind of high activity slag powders and its preparation process | |
| CN113443851A (en) | Composite solid nano-based early strength agent and preparation method thereof | |
| CN105271987A (en) | Novel mortar for air-entrained bricks | |
| CN109053020A (en) | A kind of morning strong micro mist for assembled architecture prefabricated components concrete | |
| Liu et al. | Methods of improving the workability and mechanical properties of sulfoaluminate cement mortar | |
| CN109133783A (en) | A kind of slag micropowder float stone lightweight aggregate concrete and preparation method thereof | |
| Lin et al. | Effect of polycarboxylate superplasticizer on properties of phosphogypsum-based cement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |