CN107226634A - A kind of concrete retarding water reducer - Google Patents
A kind of concrete retarding water reducer Download PDFInfo
- Publication number
- CN107226634A CN107226634A CN201710394869.2A CN201710394869A CN107226634A CN 107226634 A CN107226634 A CN 107226634A CN 201710394869 A CN201710394869 A CN 201710394869A CN 107226634 A CN107226634 A CN 107226634A
- Authority
- CN
- China
- Prior art keywords
- parts
- water reducer
- concrete
- retarding water
- concrete retarding
- 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.)
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to concrete additives technical field, especially a kind of concrete retarding water reducer；The mass parts composition of the concrete retarding water reducer is as follows：40 45 parts of polycarboxylate superplasticizer mother liquor, 6 10 parts of acrylamide, 2.5 3.5 parts of ferric sulfate, 46 parts of lignosulfonates, 37 parts of hydroquinones, 35 40 parts of water；The present invention concrete retarding water reducer there is raw material to be easy to get, with low cost and its function admirable the features such as, by the reasonably combined of each component, using high admixture usage ratio, low-cementitious material usage ratio as principal character；Ultimately form that workability is good, intensity is high, crack resistance good, the concrete additives of impervious good and long lifespan.
Description
Technical field
The present invention relates to concrete additives technical field, especially a kind of concrete retarding water reducer.
Background technology
It is well known that the construction of seabed tunnel is the most complicated, standard highest project under construction in current transport development；Tunnel
Road concrete does not allow harmfulness crack occur, and its maximum length of embedment is in -40m or so.It is pre- using batch production more than seabed tunnel
Tunneling boring processed is poured, and one-time-concreting concrete square amount is up to 3400m3 or so, and design strength is that 56d reaches C50, while to ensure
The form removal of early age, it is desirable to which 3d intensity reaches C30.Because tunnel concrete structure needs the long-term high pressure sea water that bears to act on, because
This anti-permeability performance, cracking resistance and long term life to tunnel concrete proposes requirements at the higher level.It is swollen frequently with adding at present
The swollen dose of cracking resistance to improve concrete；It is to use calcined kaolin, alunite, dickite, aluminium ore slag, calcium aluminate clinker mostly
Or the entringite class swelling agent that calcium sulphoaluminate clinker is prepared with gypsum, there is low expansion energy, expansion rate and concrete coagulation core
Hydration reaction speed, which is mismatched, volume is big, alkali content is high easily causes the unfavorable factors such as alkali-aggregate reaction；Using CaO as main component
Calcium oxide expansion agents, have that speed of expansion is too fast, Bulking Time is short, expand with concrete shrinkage speed it is uncoordinated, be difficult
The shortcomings of preservation；Magnesia class swelling agent by main component of MgO, has that speed of expansion is excessively slow, and expansion start time far falls
After the concrete shrinkage time started, it is impossible to play the drawbacks such as cracking resistance effect.
The content of the invention
The technical problem to be solved in the present invention is：Overcome the not enough coagulation stable there is provided a kind of performance of the prior art
Native retardation water reducing agent.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：
A kind of concrete retarding water reducer, the mass parts composition of the concrete retarding water reducer is as follows：Polycarboxylate superplasticizer mother liquor
40-45 parts, 6-10 parts of acrylamide, 2.5-3.5 parts of ferric sulfate, 4-6 parts of lignosulfonates, 3-7 parts of hydroquinones, water 35-
40 parts.
Preferably, a kind of described concrete retarding water reducer, it is characterised in that：The polycarboxylate superplasticizer mother liquor
Solid content is 38%.
Preferably, a kind of described concrete retarding water reducer, it is characterised in that comprise the following steps：
（1）Concrete retarding water reducer proportion design, its mass parts composition is as follows：40 parts of polycarboxylate superplasticizer mother liquor, acryloyl
6 parts of amine, 2.5 parts of ferric sulfate, 4 parts of lignosulfonates, 3 parts of hydroquinones, 35 parts of water；
（2）Mixture stirs, and whipping temp is 15-18 DEG C.
It is using the beneficial effect of technical scheme：
The present invention concrete retarding water reducer there is raw material to be easy to get, with low cost and its function admirable the features such as, pass through each group
That divides is reasonably combined, using high admixture usage ratio, low-cementitious material usage ratio as principal character；Ultimately form workability good
Good, intensity is high, crack resistance is good, the concrete additives of impervious good and long lifespan.
Embodiment
A kind of concrete retarding water reducer, the mass parts composition of the concrete retarding water reducer is as follows：Polycarboxylate water-reducer
40-45 parts of mother liquor, 6-10 parts of acrylamide, 2.5-3.5 parts of ferric sulfate, 4-6 parts of lignosulfonates, 3-7 parts of hydroquinones, water
35-40 parts.
Preferably, a kind of described concrete retarding water reducer, it is characterised in that：The polycarboxylate superplasticizer mother liquor
Solid content is 38%.
Preferably, a kind of described concrete retarding water reducer, it is characterised in that comprise the following steps：
（1）Concrete retarding water reducer proportion design, its mass parts composition is as follows：40 parts of polycarboxylate superplasticizer mother liquor, acryloyl
6 parts of amine, 2.5 parts of ferric sulfate, 4 parts of lignosulfonates, 3 parts of hydroquinones, 35 parts of water；
（2）Mixture stirs, and whipping temp is 15-18 DEG C.
Using the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (3)
1. a kind of concrete retarding water reducer, it is characterised in that the mass parts composition of the concrete retarding water reducer is as follows：Poly- carboxylic
Sour 40-45 parts of water reducer mother liquor, 6-10 parts of acrylamide, 2.5-3.5 parts of ferric sulfate, 4-6 parts of lignosulfonates, hydroquinones
3-7 parts, 35-40 parts of water.
2. a kind of concrete retarding water reducer according to claim 1, it is characterised in that：The polycarboxylate water-reducer is female
The solid content of liquid is 38%.
3. a kind of concrete retarding water reducer according to claim 1-2, it is characterised in that comprise the following steps：
（1）Concrete retarding water reducer proportion design, its mass parts composition is as follows：40 parts of polycarboxylate superplasticizer mother liquor, acryloyl
6 parts of amine, 2.5 parts of ferric sulfate, 4 parts of lignosulfonates, 3 parts of hydroquinones, 35 parts of water；
（2）Mixture stirs, and whipping temp is 15-18 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710394869.2A CN107226634A (en) | 2017-05-30 | 2017-05-30 | A kind of concrete retarding water reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710394869.2A CN107226634A (en) | 2017-05-30 | 2017-05-30 | A kind of concrete retarding water reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107226634A true CN107226634A (en) | 2017-10-03 |
Family
ID=59933496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710394869.2A Pending CN107226634A (en) | 2017-05-30 | 2017-05-30 | A kind of concrete retarding water reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107226634A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110386772A (en) * | 2019-08-05 | 2019-10-29 | 徐州巨龙新材料科技有限公司 | A kind of concrete retarding water-reducing agent |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186782A (en) * | 2016-07-02 | 2016-12-07 | 曹平 | A kind of concrete retarding water reducer |
| CN106277903A (en) * | 2016-08-23 | 2017-01-04 | 陈广圣 | A kind of concrete retarding water reducer |
-
2017
- 2017-05-30 CN CN201710394869.2A patent/CN107226634A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186782A (en) * | 2016-07-02 | 2016-12-07 | 曹平 | A kind of concrete retarding water reducer |
| CN106277903A (en) * | 2016-08-23 | 2017-01-04 | 陈广圣 | A kind of concrete retarding water reducer |
Non-Patent Citations (1)
| Title |
|---|
| 何廷树 等主编: "《土木工程材料》", 31 January 2013, 中国建材工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110386772A (en) * | 2019-08-05 | 2019-10-29 | 徐州巨龙新材料科技有限公司 | A kind of concrete retarding water-reducing agent |
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Legal Events
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|---|---|---|---|
| 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: 20171003 |
|
| WD01 | Invention patent application deemed withdrawn after publication |