CN108218280A - Cement hardener and preparation method thereof - Google Patents
Cement hardener and preparation method thereof Download PDFInfo
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- CN108218280A CN108218280A CN201810278481.0A CN201810278481A CN108218280A CN 108218280 A CN108218280 A CN 108218280A CN 201810278481 A CN201810278481 A CN 201810278481A CN 108218280 A CN108218280 A CN 108218280A
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- Prior art keywords
- parts
- cement
- cement hardener
- preparation
- phosphate
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Classifications
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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
-
- 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 cement hardeners and preparation method thereof, are prepared from the following raw materials in parts by weight：13 parts of 50 100 parts of bauxite waste residue, 20 40 parts of sodium carbonate, 10 30 parts of bentonite, 5 15 parts of lignosulfonates, 5 10 parts of phosphate, 35 parts of ether sulfuric acid triethanolamine, 13 parts of disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate, 13 parts of methyl naphthalene sulfonic acid salt formaldehyde condensation products, 0.5 2 parts of N acyl glutamic acids potassium and lauryl methyl aminoethyl phosphonic acid sodium.In accelerator incorporation cement provided by the invention, after meeting water mixing hydration reaction occurs immediately for cement, makes the rapid curing condensation of cement slurry, greatly speeds up the setting rate of concrete and cement, the compatibility of inventive formulation and concrete slurry is good simultaneously, will not reduce the intensity of cement concrete.
Description
Technical field
The present invention relates to cement technology field, specifically a kind of accelerated cement and preparation method thereof.
Background technology
In recent years, with the development of national economy, building material industry development in China's is swift and violent, and particularly the demand of cement is very
Greatly, but cement is under common execution conditions, and condensation is slow, and curing time is long, and construction speed is slow, is not suitable with the requirement of modern construction,
In order to accelerate efficiency, various cement accelerator is being had developed in recent decades both at home and abroad, cement setting speed is being accelerated, improves
Construction efficiency.
Accelerator, which is added in cement slurry, can promote the aquation of the mineral such as tricalcium aluminate in cement, tricalcium silicate anti-
Should, the hydrated products such as drated calcium aluminate, entringite, hydrated calcium silicate are formed in a short time, make cement slurry rapid curing solidifying
Knot.Traditional shotcrete accelerator generally comprises the substances such as alkali metal aluminate, carbonate, silicate, mixing during use
Amount typically constitutes from the 4%~8% of cement quality.Since these substances all have strong basicity, often brought while construction very much
Problem.For example, alkali metal aluminate accelerator often has very strong caustic corrosion, easily construction personnel is damaged；Meeting
Undesirable influence is caused on environment.Simultaneously because a large amount of uses of alkaline matter, late strength of concrete can be there are 30% even
The reduction of bigger.
The disclosure of background above technology contents is only used for inventive concept and the technical solution that auxiliary understands the present invention, not
The prior art of present patent application is necessarily belonged to, shows the applying date of the above in present patent application in no tangible proof
In the case of having disclosed, above-mentioned background technology should not be taken to the novelty and creativeness of evaluation the application.
Invention content
The present invention for existing cement hardener there are the problem of, provide a kind of fast, the non-corrosive, safety and environmental protection of condensation,
Strength of cement, cement hardener at low cost and preparation method thereof are not reduced.
In order to achieve the goal above, the technical solution adopted by the present invention is as follows：
A kind of cement hardener, is prepared from the following raw materials in parts by weight：50-100 parts of bauxite waste residue, 20-40 parts of sodium carbonate,
10-30 parts of bentonite, 5-15 parts of lignosulfonates, 5-10 parts of phosphate, 3-5 parts of ether sulfuric acid triethanolamine, dodecyl two
1-3 parts of phenylate sodium disulfonate, 1-3 parts of methyl naphthalene sulfonic acid salt formaldehyde condensation products, 0.5-2 parts of N- acyl glutamic acid potassium and lauryl first
1-3 parts of base aminoethyl phosphonic acid sodium.
Further, the lignosulfonates are calcium lignosulfonate or/and sodium lignin sulfonate.
Further, the phosphate is one or more groups in calcium monohydrogen phosphate, disodium hydrogen phosphate or dipotassium hydrogen phosphate
Close object.
Further, the bauxite waste residue passes through except iron processing and calcination process, Al2O3Content is promoted by 50-60 %
To 75-85%, Fe2O3Content is reduced to 10-15% by 40-50%.
Further, the grain size of the bauxite waste residue is 40-80 mesh.
The present invention also provides the preparation methods of the cement hardener, include the following steps：
S1：Stir mixing：Formula according to claim 1 weighs each raw material, and each raw material is added in high force dispersion blender, adds water
Paste is tuned into, is sufficiently stirred under suitable temperature, pressure, obtains mixture；
S2：Above-mentioned mixture is subjected to microwave drying, is milled to get to cement hardener.
Further, described be sufficiently stirred under suitable temperature, pressure is temperature is 60-80 DEG C, vacuum degree is
0.08-0.10Mpa, rotating speed is stir 30-60min under 100-300rpm.
Further, it in temperature is dry at 80-100 DEG C that the microwave drying, which is,.
Further, the milling is to grind the material to grain size as 100-200 mesh.
Further, the application of the cement hardener, the incorporation of cement hardener are the 3-5% of cement consumption.
Compared with prior art, it advantages of the present invention and has the beneficial effect that：
1st, in accelerator incorporation cement provided by the invention, after meeting water mixing hydration reaction occurs immediately for cement, makes cement slurry
Rapid curing condensation, greatly speeds up the setting rate of concrete and cement, while inventive formulation and concrete slurry is compatible
Property is good, will not reduce the intensity of cement concrete.
2nd, accelerator incorporation of the present invention is the 3-5% of cement consumption, in relatively low incorporation can cement in 2-5 point
Final set in clock.
3rd, accelerator of the invention not only reduces cost of material, also by bauxite using bauxite waste residue as primary raw material
Abandoned mine slag is turned waste into wealth, and realizes the comprehensive utilization of resource, reduces environmental pollution.
4th, accelerator of the invention also has non-corrosive, safety and environmental protection, non-stimulated smell, of low cost, preparation process
The advantages that simple, industrialized production easy to implement have good Social benefit and economic benefit.
Specific embodiment
The present invention is described in further detail With reference to embodiment.It is emphasized that the description below is only
It is only exemplary, the range being not intended to be limiting of the invention and its application.
Embodiment 1
A kind of cement hardener, is prepared from the following raw materials in parts by weight：80 parts of bauxite waste residue, 30 parts of sodium carbonate, bentonite
15 parts, 8 parts of calcium lignosulfonate, 7 parts of disodium hydrogen phosphate, 4 parts of ether sulfuric acid triethanolamine, disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate 2
Part, 1 part of methyl naphthalene sulfonic acid salt formaldehyde condensation products, 1.5 parts of N- acyl glutamic acids potassium and 2 parts of lauryl methyl aminoethyl phosphonic acid sodium.
Preparation method includes the following steps：
S1：Stir mixing：Each raw material is weighed according to above-mentioned formula, each raw material is added in into high force dispersion blender, water is added to be tuned into paste
Shape stirs 60min in the case where temperature is 70 DEG C, vacuum degree 0.08Mpa, rotating speed are 200rpm, obtains mixture；
S2：Above-mentioned mixture is dry at 80 DEG C, it is milled to 200 mesh to get to cement hardener.
Embodiment 2
A kind of cement hardener, is prepared from the following raw materials in parts by weight：100 parts of bauxite waste residue, 30 parts of sodium carbonate, bentonite
20 parts, 10 parts of calcium lignosulfonate, 5 parts of calcium monohydrogen phosphate, 5 parts of ether sulfuric acid triethanolamine, disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate 1.5
Part, 3 parts of methyl naphthalene sulfonic acid salt formaldehyde condensation products, 1 part of N- acyl glutamic acids potassium and 3 parts of lauryl methyl aminoethyl phosphonic acid sodium.
Preparation method includes the following steps：
S1：Stir mixing：Each raw material is weighed according to above-mentioned formula, each raw material is added in into high force dispersion blender, water is added to be tuned into paste
Shape stirs 30min in the case where temperature is 80 DEG C, vacuum degree 0.09Mpa, rotating speed are 300rpm, obtains mixture；
S2：Above-mentioned mixture is dry at 90 DEG C, it is milled to 160 mesh to get to cement hardener.
Embodiment 3
A kind of cement hardener, is prepared from the following raw materials in parts by weight：50 parts of bauxite waste residue, 40 parts of sodium carbonate, bentonite
15 parts, 5 parts of sodium lignin sulfonate, 10 parts of calcium monohydrogen phosphate, 5 parts of ether sulfuric acid triethanolamine, disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate 1
Part, 2 parts of methyl naphthalene sulfonic acid salt formaldehyde condensation products, 0.5 part of N- acyl glutamic acids potassium and lauryl methyl aminoethyl phosphonic acid sodium 1.5
Part.
Preparation method includes the following steps：
S1：Stir mixing：Each raw material is weighed according to above-mentioned formula, each raw material is added in into high force dispersion blender, water is added to be tuned into paste
Shape stirs 60min in the case where temperature is 60 DEG C, vacuum degree 0.08Mpa, rotating speed are 100rpm, obtains mixture；
S2：Above-mentioned mixture is dry at 100 DEG C, it is milled to 100 mesh to get to cement hardener.
Embodiment 4
A kind of cement hardener, is prepared from the following raw materials in parts by weight：80 parts of bauxite waste residue, 40 parts of sodium carbonate, bentonite
15 parts, 12 parts of calcium lignosulfonate, 10 parts of dipotassium hydrogen phosphate, 4 parts of ether sulfuric acid triethanolamine, disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate
2 parts of 2.5 parts, 2 parts of methyl naphthalene sulfonic acid salt formaldehyde condensation products, 2 parts of N- acyl glutamic acids potassium and lauryl methyl aminoethyl phosphonic acid sodium.
Preparation method includes the following steps：
S1：Stir mixing：Each raw material is weighed according to above-mentioned formula, each raw material is added in into high force dispersion blender, water is added to be tuned into paste
Shape stirs 45min in the case where temperature is 70 DEG C, vacuum degree 0.08Mpa, rotating speed are 150rpm, obtains mixture；
S2：Above-mentioned mixture is dry at 90 DEG C, it is milled to 200 mesh to get to cement hardener.
Embodiment 5
A kind of cement hardener, is prepared from the following raw materials in parts by weight：70 parts of bauxite waste residue, 25 parts of sodium carbonate, bentonite
20 parts, 8 parts of calcium lignosulfonate, 8 parts of disodium hydrogen phosphate, 5 parts of ether sulfuric acid triethanolamine, disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate 1
Part, 1.5 parts of methyl naphthalene sulfonic acid salt formaldehyde condensation products, 0.5 part of N- acyl glutamic acids potassium and lauryl methyl aminoethyl phosphonic acid sodium 3
Part.
Preparation method includes the following steps：
S1：Stir mixing：Each raw material is weighed according to above-mentioned formula, each raw material is added in into high force dispersion blender, water is added to be tuned into paste
Shape stirs 60min in the case where temperature is 80 DEG C, vacuum degree 0.10Mpa, rotating speed are 250rpm, obtains mixture；
S2：Above-mentioned mixture is dry at 80 DEG C, it is milled to 150 mesh to get to cement hardener.
Embodiment 6
A kind of cement hardener, is prepared from the following raw materials in parts by weight：90 parts of bauxite waste residue, 35 parts of sodium carbonate, bentonite
10 parts, 15 parts of calcium lignosulfonate, 10 parts of calcium monohydrogen phosphate, 3 parts of ether sulfuric acid triethanolamine, disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate 3
Part, 1 part of methyl naphthalene sulfonic acid salt formaldehyde condensation products, 2 parts of N- acyl glutamic acids potassium and 2 parts of lauryl methyl aminoethyl phosphonic acid sodium.
Preparation method includes the following steps：
S1：Stir mixing：Each raw material is weighed according to above-mentioned formula, each raw material is added in into high force dispersion blender, water is added to be tuned into paste
Shape stirs 40min in the case where temperature is 75 DEG C, vacuum degree 0.09Mpa, rotating speed are 150rpm, obtains mixture；
S2：Above-mentioned mixture is dry at 100 DEG C, it is milled to 100 mesh to get to cement hardener.
Cement hardener made from above-described embodiment 1-6 is mixed with 4% incorporation with 42.5R Portland cements
Carry out first, final set experiment；The 1 day intensity and 28 days intensity of mortar, the blank with not adding in any rapid hardening after addition accelerator
Mortar makes a strength test as a control group, and wherein the control group mortar strength of 1 day is 7.3MPa, and mortar strength is within 28 days
28.9MPa, result of the test are as shown in the table.
| Product | Presetting period | Final setting time | 1 day intensity | 28 days intensity | 28 days Strength Changes |
| Embodiment 1 | 90s | 3min15s | 17.2MPa | 29.2MPa | 1.03% |
| Embodiment 2 | 120s | 4min30s | 16.1MPa | 28.7MPa | -0.07% |
| Embodiment 3 | 80s | 3min50s | 15.4MPa | 28.1MPa | -2.78% |
| Embodiment 4 | 100s | 4min50s | 18.6MPa | 30.1MPa | 4.15% |
| Embodiment 5 | 70s | 2min10s | 15.8MPa | 28.9MPa | 0% |
| Embodiment 6 | 95s | 4min50s | 16.8MPa | 27.9MPa | -3.65% |
The accelerator of the present invention can significantly accelerate the setting rate of cement, after addition to the intensity of cement concrete substantially without
It influences.
The above content is combine specific/preferred embodiment further description made for the present invention, it is impossible to
Assert that the specific implementation of the present invention is confined to these explanations.General technical staff of the technical field of the invention is come
It says, without departing from the inventive concept of the premise, some replacements or modification can also be made to the embodiment that these have been described,
And these are substituted or variant should all be considered as belonging to protection scope of the present invention.
Claims (10)
1. a kind of cement hardener, it is characterised in that：It is prepared from the following raw materials in parts by weight：
50-100 parts of bauxite waste residue, 20-40 parts of sodium carbonate, 10-30 parts of bentonite, 5-15 parts of lignosulfonates, phosphate
5-10 parts, 3-5 parts of ether sulfuric acid triethanolamine, 1-3 parts of disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate, methyl naphthalene sulfonic acid salt formaldehyde condensation products
1-3 parts of 1-3 parts, 0.5-2 parts of N- acyl glutamic acid potassium and lauryl methyl aminoethyl phosphonic acid sodium.
2. cement hardener according to claim 1, it is characterised in that：The lignosulfonates are calcium lignosulfonate
Or/and sodium lignin sulfonate.
3. cement hardener according to claim 1, it is characterised in that：The phosphate is calcium monohydrogen phosphate, disodium hydrogen phosphate
Or one or more compositions in dipotassium hydrogen phosphate.
4. cement hardener according to claim 1, it is characterised in that：The bauxite waste residue passes through except iron is handled and is roasted
Processing, Al2O3Content is promoted to 75-85%, Fe by 50-60 %2O3Content is reduced to 10-15% by 40-50%.
5. cement hardener according to claim 4, it is characterised in that：The grain size of the bauxite waste residue is 40-80 mesh.
6. a kind of preparation method of cement hardener as described in claim 1, it is characterised in that：Include the following steps：
S1：Stir mixing：Formula according to claim 1 weighs each raw material, and each raw material is added in high force dispersion blender, adds water
Paste is tuned into, is sufficiently stirred under suitable temperature, pressure, obtains mixture；
S2：Above-mentioned mixture is subjected to microwave drying, is milled to get to cement hardener.
7. the preparation method of cement hardener according to claim 6, it is characterised in that：It is described under suitable temperature, pressure
Be sufficiently stirred is to stir 30- in the case where temperature is 60-80 DEG C, vacuum degree 0.08-0.10Mpa, rotating speed are 100-300rpm
60min。
8. the preparation method of cement hardener according to claim 6, it is characterised in that：The microwave drying is to be in temperature
It is dry at 80-100 DEG C.
9. the preparation method of cement hardener according to claim 6, it is characterised in that：The milling is to grind the material to
Grain size is 100-200 mesh.
10. the application of cement hardener as described in claim 1, it is characterised in that：The incorporation of cement hardener is used for cement
The 3-5% of amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810278481.0A CN108218280A (en) | 2018-03-31 | 2018-03-31 | Cement hardener and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810278481.0A CN108218280A (en) | 2018-03-31 | 2018-03-31 | Cement hardener and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108218280A true CN108218280A (en) | 2018-06-29 |
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| CN201810278481.0A Withdrawn CN108218280A (en) | 2018-03-31 | 2018-03-31 | Cement hardener and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109601043A (en) * | 2019-01-29 | 2019-04-12 | 山东省海洋生物研究院 | A kind of Intertidal Algae field substrate reorganizes and outfit method |
-
2018
- 2018-03-31 CN CN201810278481.0A patent/CN108218280A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109601043A (en) * | 2019-01-29 | 2019-04-12 | 山东省海洋生物研究院 | A kind of Intertidal Algae field substrate reorganizes and outfit method |
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Application publication date: 20180629 |