CN105731862B - Anti- mud agent of diminishing and preparation method thereof - Google Patents
Anti- mud agent of diminishing and preparation method thereof Download PDFInfo
- Publication number
- CN105731862B CN105731862B CN201610135410.6A CN201610135410A CN105731862B CN 105731862 B CN105731862 B CN 105731862B CN 201610135410 A CN201610135410 A CN 201610135410A CN 105731862 B CN105731862 B CN 105731862B
- Authority
- CN
- China
- Prior art keywords
- poly
- component
- parts
- sodium
- weight
- 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
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
-
- 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)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses anti-mud agent of a kind of diminishing and preparation method thereof, anti-mud agent includes the raw material of following parts by weight：Slow setting complexing component is 5 15 parts；Early strong component is 5 10 parts；It is 5 10 parts that clay lattice intercalation, which changes component,；Clay adsorption and 39 56 parts of component of dilution, wherein clay adsorption component is poly (sodium aspartate) and the sub- amide blend of poly- amber, the ratio of weight and number of poly (sodium aspartate) and the sub- acid amides of poly- amber is 4/1, it has preferable effect for the sandstone of high cement content, and volume is relatively low, cost is low, and the mechanical property and endurance quality for concrete will not have adverse effect on；This method only needs to the various components being well mixed and can complete to prepare, technique is simple, and the poly (sodium aspartate) used and the sub- acid amides of poly- amber are amino condensation compound, and environment is not interfered with the production and use process, is a kind of Green Product.
Description
Technical field
The present invention relates to concrete additive technical field, more particularly to a kind of anti-mud agent of diminishing and preparation method thereof.
Background technology
Concrete admixture serves important work as the important component of concrete in concrete mixing procedure
With.Especially cement water reducing agent is for the workability of concrete, and mechanical property, endurance quality brings huge leap forward, still
Because the sandstone raw material used in modern concrete are largely developed, cause the reserves of the measured sandstone of matter fewer and fewer, usual sand
Clay content in stone is higher, and grain composition is poor, causes the property of concrete to have received serious influence.Especially clay content mistake
Height, can reduce in concrete water reducer water-reducing property, or even failure, cause concrete initial slump and the slump through when damage
Mistake is substantially reduced, and larger threat is also brought for the workability and durability of concrete.How concrete power is not being influenceed
On the premise of learning performance agent durability, it is that several technologies urgently to be resolved hurrily are difficult to reduce influence of the clay content to cement water reducing agent
Topic.
In order to solve influence of the clay content to cement water reducing agent, the modern times are all the direct volumes for increasing water reducer, still
Water reducer volume increases, and can directly cause the cost increase of concrete, because the volume of water reducer has certain scope, volume mistake
Greatly, it frequently can lead to concrete water bleeding, the serious problems such as workability is poor；It is higher for clay content in present work progress
Sand, generally washed-out sand in advance, but cost is high when washed-out sand, pollutes environment, causes the fine particle of sand to be easily flushed away,
The grain composition of sand is severely impacted；The upper anti-mud agent cost of present market it is higher and for clay content for coagulation
The influence of soil mechanics performance durability energy, it is difficult to solve.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of anti-mud agent of diminishing, have preferably for the sandstone of high cement content
Effect, and volume is relatively low, and cost is low, and the mechanical property and endurance quality for concrete will not have adverse effect on.
The technical problems to be solved by the invention are also to provide a kind of diminishing anti-mud agent preparation method, it is only necessary to will be described each
Kind of component is well mixed can be completed to prepare, and technique is simple, and the poly (sodium aspartate) used and poly- amber Asia acid amides are equal
For amino condensation compound, environment is not interfered with the production and use process, is a kind of Green Product.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of anti-mud agent of diminishing, including following weight
Measure the raw material of number：Slow setting complexing component is 5-15 parts；Early strong component is 5-10 parts；It is 5-10 that clay lattice intercalation, which changes component,
Part；Clay adsorption and 39-56 parts of component of dilution, wherein clay adsorption component are that poly (sodium aspartate) is mixed with the sub- acid amides of poly- amber
Thing, the ratio of weight and number of poly (sodium aspartate) and the sub- acid amides of poly- amber is 4/1, and the molecular weight of wherein poly (sodium aspartate) is
1000-5000, the molecular weight of the sub- acid amides of poly- amber is 30000-50000.
The slow setting complexing component is the mixture of sodium gluconate or sodium citrate and 1-hydroxy ethylidene-1,1-diphosphonic acid, glucose
The ratio of weight and number of sour sodium or sodium citrate and 1-hydroxy ethylidene-1,1-diphosphonic acid is 4/1, and the morning strong component is triethanolamine or nitric acid
Salt, it is sodium metasilicate and 1-hydroxy ethylidene-1,1-diphosphonic acid mixture, the sodium metasilicate and dodecane that the clay lattice intercalation, which changes component,
The ratio of weight and number of base trimethyl ammonium chloride is 5/3.
The slow setting component is 5-10 parts；Early strong component is 8-10 parts；It is 5-8 parts that clay lattice, which changes component,；Clay is inhaled
Attached component is 40-50 parts.
In order to solve the above technical problems, the present invention is also adopted the technical scheme that：A kind of anti-mud agent preparation method of diminishing, institute
Stating the anti-mud agent of diminishing includes the raw material of following parts by weight：Slow setting complexing component is 5-15 parts；Early strong component is 5-10 parts；Clay
It is 5-10 parts that lattice intercalation, which changes component,；Clay adsorption and 39-56 parts of component of dilution, wherein clay adsorption component is poly- asparagus fern ammonia
Sour sodium and the sub- amide blend of poly- amber, the ratio of weight and number of poly (sodium aspartate) and the sub- acid amides of poly- amber is 4/1, its preparation side
Method comprises the following steps：
The first step, gets the raw materials ready, and amount is by this raw material of the parts by weight standard of above-mentioned raw materials according to demand；
Second step, mixture, by clay adsorption with the sub- acid amides of the poly (sodium aspartate) in dilution component and poly- amber by 4/1
Ratio of weight and number is put into stirrer for mixing uniformly, adds slow setting complexing component, early strong component and clay lattice intercalation and changes
Component is well mixed.
The slow setting complexing component is the mixture of sodium gluconate or sodium citrate and 1-hydroxy ethylidene-1,1-diphosphonic acid, glucose
The ratio of weight and number of sour sodium or sodium citrate and 1-hydroxy ethylidene-1,1-diphosphonic acid is 4/1, and the morning strong component is triethanolamine or nitric acid
Salt, it is sodium metasilicate and DTAC mixture that the clay lattice intercalation, which changes component, the sodium metasilicate and
The ratio of weight and number of DTAC is 5/3.
It is using the beneficial effect produced by above-mentioned technical proposal：The anti-mud agent of this kind of diminishing, for the sand of high cement content
Stone has preferable effect, and volume is relatively low, and cost is low, for concrete mechanical property and endurance quality will not produce it is unfavorable
Influence.
It is using the beneficial effect produced by above-mentioned technical proposal：This method only needs to the various components mixing equal
Even to complete to prepare, technique is simple, and the poly (sodium aspartate) used and the sub- acid amides of poly- amber are amino acid condensation
Thing, does not interfere with environment in the production and use process, is a kind of Green Product.
Embodiment
Technical scheme is clearly and completely described with reference to the embodiment of the present invention, it is clear that described
Embodiment be only the present invention a part of embodiment, rather than whole embodiment.Based on the embodiment in the present invention, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to the present invention
The scope of protection.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
It is different from other manner described here using other to implement, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by following public specific embodiment.
The invention discloses a kind of anti-mud agent of diminishing, include the raw material of following parts by weight：Slow setting complexing component is 5-15
Part；Early strong component is 5-10 parts；It is 5-10 parts that clay lattice intercalation, which changes component,；Clay adsorption and 39-56 parts of component of dilution, its
Middle clay adsorption component is the sub- amide blend of poly (sodium aspartate) and poly- amber, poly (sodium aspartate) and the sub- acid amides of poly- amber
Ratio of weight and number is 4/1, and wherein the molecular weight of poly (sodium aspartate) is 1000-5000, and the molecular weight of the sub- acid amides of poly- amber is
30000-50000。
The slow setting complexing component is the mixture of sodium gluconate or sodium citrate and 1-hydroxy ethylidene-1,1-diphosphonic acid, glucose
The ratio of weight and number of sour sodium or sodium citrate and 1-hydroxy ethylidene-1,1-diphosphonic acid is 4/1, and the morning strong component is triethanolamine or nitric acid
Salt, it is sodium metasilicate and DTAC mixture that the clay lattice intercalation, which changes component, the sodium metasilicate and
The ratio of weight and number of DTAC is 5/3.
The slow setting component is 5-10 parts；Early strong component is 8-10 parts；It is 5-8 parts that clay lattice, which changes component,；Clay is inhaled
Attached component is 40-50 parts.
Specifically, because clay is mainly made up of montmorillonite, kaolin and illite class.Sodium phosphate energy aquation is provided
Monovalent cation Na+With enough OH-, make decentralized system in alkalescence, while Ca in its anion and clay2+、 Mg2+Make
With complex compound --- the R of the stable indissoluble of generation3(PO3)2, then Na can be promoted+Exchange, generate more Na-Clay, so as to increase
Plus slip fluidity, to the suspension effect of kaolin mud preferably, this is due to as absorption Ca to sodium tripolyphosphate2+、 Mg2+From
When adding sodium tripolyphosphate in the clay water slurry of son, occurs following exchange reaction：R- clays+Na2SiO3→ Na- clays+RSiO3↓
The CaSiO generated after reaction3Solubility very little, it not only significantly decreases its viscosity, and comparatively wide
Viscosity is all relatively low in the range of electrolyte concentration, so the kaolin slip fluidity for adding sodium tripolyphosphate diluent is preferable.
According to absorption principle, clay particle can the high surfactant of Preferential adsorption current potential.Because poly-aspartate belongs to
A kind of surfactant, zate potential values are far above polycarboxylate water-reducer, and clay can Preferential adsorption poly-aspartate surface-active
Agent, in the strand of poly-aspartate, except containing anionic group-COO-With-CO0-, also contain-NH2So that poly- day
Winter propylhomoserin has larger zeta current potentials.Poly-aspartate relies primarily on strong electrostatic repulsion to reach the effect of Surfactant,
Therefore, poly-aspartate can be not only adsorbed in the positively charged end face of clay by anionic group with the effect of electrostatic force,
And-NH2 by Hydrogen Binding Adsorption on the surface of clay particle, so, poly-aspartate has larger on clay particle surface
Adsorbance, is preferably coated to clay particle so that clay is substantially reduced to the adsorbance of polycarboxylate water-reducer.In addition,
Peptide bond in the poly-aspartate and polysuccinimide of larger molecular weight is constantly broken so that the poly- asparagus fern ammonia of new small molecule
Acid is produced so that action effect is more lasting.
The poly-aspartate of small component can also be preferentially adsorbed between the interlayer of montmorillonite, reduction cheating engaging layer to polycarboxylic acids
The absorption of water reducer so that the effect of polycarboxylate water-reducer is able to preferably keep.
Often adsorb K in montmorillonite layer surface+、 Na+、 Ca2+、 Mg2+Deng cation, surfactant R-NH3Cl
, it is necessary to carry out ion-exchange reactions in adsorbed entrance lamella, replace these cations and be in adsorbed state.Montmorillonite is adsorbed
Surfactant R-NH3Cl reaction is represented by（Wherein R organic groups）：R-NH3Cl+Na-MMT← →……← →
R-NH3- MMT+NaCl is in addition to said process, and the place omitted in reaction equation includes R-NH3The diffusion of Cl molecules in the solution and
Into between montmorillonite layer, R-NH3Cl is in interbed distribution and makes the end of the increase of piece interlamellar spacing and montmorillonite particle agglomerate
The processes such as face absorption.
Sodium gluconate belongs to organic acid retarder, and retardation mechanism essentially consists in group and Ca in sodium gluconate2 +、 Mg2+Generation ligand complex, can delay the condensation of cement to harden, and concrete mix can be made to keep moulding in the long period
Property.In glutinous soil water curve, because adsorption layer and diffusion layer have zeta current potentials, ionic complexing agent can thicken diffusion layer, plus
Big zate current potentials, make the increase of micelle repulsion, can weaken the attraction that clay micelle is produced due to Brownian movement in long-term suspension water,
It is greatly lowered mud viscosity.Ionic complexing agent has stronger complexing power, calcium, the magnesate complexes indissoluble of generation simultaneously
Yu Shui, makes the Ca in mud2+、Mg2+Concentration reduce, play a part of it is counter condense, promote mud dilution.
Early strong component in the present invention is used to adjust the setting time due to adding retarder cement concrete, improves coagulation
The early strength of soil so that the construction period of concrete is guaranteed.
The present invention is described in detail by the following examples：
Table 1
The invention also discloses a kind of anti-mud agent preparation method of diminishing, the anti-mud agent of diminishing includes following parts by weight
Raw material：Slow setting complexing component is 5-15 parts；Early strong component is 5-10 parts；It is 5-10 parts that clay lattice intercalation, which changes component,；Clay
Absorption and 39-56 parts of component of dilution, wherein clay adsorption component are poly (sodium aspartate) and the sub- amide blend of poly- amber, poly- day
The ratio of weight and number of winter propylhomoserin sodium and the sub- acid amides of poly- amber is 4/1, and its preparation method comprises the following steps：
The first step, gets the raw materials ready, and amount is by this raw material of the parts by weight standard of above-mentioned raw materials according to demand；
Second step, mixture, by clay adsorption with the sub- acid amides of the poly (sodium aspartate) in dilution component and poly- amber by 4/1
Ratio of weight and number is put into stirrer for mixing uniformly, adds slow setting complexing component, early strong component and clay lattice intercalation and changes
Component is well mixed.
The slow setting complexing component is the mixture of sodium gluconate or sodium citrate and 1-hydroxy ethylidene-1,1-diphosphonic acid, glucose
The ratio of weight and number of sour sodium or sodium citrate and 1-hydroxy ethylidene-1,1-diphosphonic acid is 4/1, and the morning strong component is triethanolamine or nitric acid
Salt, it is sodium metasilicate and DTAC mixture that the clay lattice intercalation, which changes component, the sodium metasilicate and
The ratio of weight and number of DTAC is 5/3.
In a word, the invention provides anti-mud agent of a kind of diminishing and preparation method thereof, the anti-mud agent of this kind of diminishing contains for high mud
The sandstone of amount has preferable effect, and volume is relatively low, and cost is low, and the mechanical property and endurance quality for concrete will not be produced
Detrimental effect.
It is using the beneficial effect produced by above-mentioned technical proposal：This method only needs to the various components mixing equal
Even to complete to prepare, technique is simple, and the poly (sodium aspartate) used and the sub- acid amides of poly- amber are amino acid condensation
Thing, does not interfere with environment in the production and use process, is a kind of Green Product.
To absolutely prove the performance of the anti-mud agent of diminishing involved in the present invention, by the anti-mud of diminishing claimed of the invention
Agent adds concrete and made a service test, and specific experiment result is as follows：
Using normal sand, Portland cement（P·O 42.5）Prepare mortar, test mortar initial flow degree 1h, 2h
Fluidity gradual loss.The ratio of wherein mortar is：Cement:Normal sand:Water=340:830:160.Polycarboxylate water-reducer volume is
The 1% of binder total amount, the volume of anti-mud agent is the 2% of polycarboxylate water-reducer, and cement content is 5% and 8% liang of normal sand quality
Kind, it the results are shown in Table 2.
The Mortar'S Flowability of table 2 and gradual loss
The anti-mud agent prepared using the present invention prepares concrete with polycarboxylate water-reducer, and design strength grade is C30.Benchmark
Match ratio is shown in Table 3, and the slump is shown in Table 4 with Slump Time losing of Large, and intensity and Durability results are shown in Table 5, and anti-mud agent volume is by poly-
2% admixture between carboxylic acid additive.
The normal concrete match ratio of table 3
| Raw material | Cement | Stone | Sand | Water | Polycarboxylate water-reducer |
| Consumption/(kgm-3) | 330 | 1196 | 733 | 150 | 3.4 |
The normal concrete Slump Time losing of Large of table 4
| Clay content | 0mim | 30min | 60min | 90min | 120min |
| 0 | 215 | 210 | 210 | 200 | 190 |
| 5% | 210 | 205 | 205 | 195 | 180 |
| 8% | 200 | 190 | 185 | 180 | 165 |
Influence of the different additives of table 5 to concrete charge pass and intensity
| Clay content | Electric flux（/C） | 3d（MPa） | 7d（MPa） | 28d（MPa） |
| 0 | 5267 | 15 | 22 | 35 |
| 5% | 2603 | 16 | 25 | 37 |
| 8% | 2701 | 15 | 21 | 34 |
Claims (4)
1. a kind of anti-mud agent of diminishing, it is characterised in that：Include the raw material of following parts by weight：Slow setting complexing components are 5-15 parts,
The slow setting complexing components are the mixture of sodium gluconate or sodium citrate and 1-hydroxy ethylidene-1,1-diphosphonic acid, sodium gluconate or lemon
The ratio of weight and number of lemon acid sodium and 1-hydroxy ethylidene-1,1-diphosphonic acid is 4/1；Accelerating component is 5-10 parts；Clay lattice intercalation changes component
For 5-10 parts, it is sodium metasilicate and DTAC mixture, the silicon that the clay lattice intercalation, which changes component,
The ratio of weight and number of sour sodium and DTAC is 5/3；39-56 parts of clay adsorption component, wherein clay adsorption
Component is poly (sodium aspartate) and the sub- amide blend of poly- amber, the ratio of weight and number of poly (sodium aspartate) and the sub- acid amides of poly- amber
For 4/1, wherein the molecular weight of poly (sodium aspartate) is 1000-5000, and the molecular weight of the sub- acid amides of poly- amber is 30000-50000.
2. the anti-mud agent of diminishing according to claim 1, it is characterised in that：The slow setting complexing components are 5-10 parts；It is early strong
Component is 8-10 parts；It is 5-8 parts that clay lattice intercalation, which changes component,；Clay adsorption component is 40-50 parts.
3. a kind of anti-mud agent preparation method of diminishing, it is characterised in that：The anti-mud agent of diminishing includes the raw material of following parts by weight：
Slow setting complexing components are 5-15 parts, and the slow setting complexing components are sodium gluconate or sodium citrate and 1-hydroxy ethylidene-1,1-diphosphonic acid
The ratio of weight and number of mixture, sodium gluconate or sodium citrate and 1-hydroxy ethylidene-1,1-diphosphonic acid is 4/1；Accelerating component is 5-10
Part；It is 5-10 parts that clay lattice intercalation, which changes component, and it is sodium metasilicate and dodecyl three that the clay lattice intercalation, which changes component,
Ammonio methacrylate mixture, the ratio of weight and number of the sodium metasilicate and DTAC is 5/3；Clay adsorption group
Divide 39-56 parts, wherein clay adsorption component is poly (sodium aspartate) and the sub- amide blend of poly- amber, and poly (sodium aspartate) is with gathering
The ratio of weight and number of amber Asia acid amides is 4/1, and its preparation method comprises the following steps：
The first step, gets the raw materials ready, and amount prepares raw material by the parts by weight of above-mentioned raw materials according to demand；
Second step, mixture, the sub- acid amides of the poly (sodium aspartate) in clay adsorption component and poly- amber is pressed 4/1 ratio of weight and number
It is put into stirrer for mixing uniform, adds slow setting complexing components, accelerating component and clay lattice intercalation and change component mixing
It is even.
4. the anti-mud agent preparation method of a kind of diminishing according to claim 3, it is characterised in that：The slow setting complexing components are
The mixture of sodium gluconate or sodium citrate and 1-hydroxy ethylidene-1,1-diphosphonic acid, sodium gluconate or sodium citrate and hydroxy ethylidene two
The ratio of weight and number of phosphonic acids is 4/1, and the accelerating component is triethanolamine or nitrate, and the clay lattice intercalation changes component
For sodium metasilicate and DTAC mixture, the parts by weight of the sodium metasilicate and DTAC
Number is than being 5/3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610135410.6A CN105731862B (en) | 2016-03-10 | 2016-03-10 | Anti- mud agent of diminishing and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610135410.6A CN105731862B (en) | 2016-03-10 | 2016-03-10 | Anti- mud agent of diminishing and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105731862A CN105731862A (en) | 2016-07-06 |
| CN105731862B true CN105731862B (en) | 2017-10-13 |
Family
ID=56250230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610135410.6A Active CN105731862B (en) | 2016-03-10 | 2016-03-10 | Anti- mud agent of diminishing and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105731862B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105949383A (en) * | 2016-07-13 | 2016-09-21 | 合肥工业大学 | Cation type mud resisting agent and preparation method thereof |
| CN108285288A (en) * | 2018-01-26 | 2018-07-17 | 淮南市晋淮建化科技有限公司 | A kind of super-slowly coagulating water reducer being used for hole-drilling interlocking pile and construction at high temperature environment |
| CN108947301A (en) * | 2018-09-27 | 2018-12-07 | 武汉奥克化学有限公司 | A kind of anti-mud sacrifice agent of Compositional type and preparation method thereof |
| CN112500018B (en) * | 2020-12-04 | 2022-09-06 | 河北协同环保科技股份有限公司 | Degradable efficient gypsum retarder and preparation method and application thereof |
| CN112851182B (en) * | 2021-02-01 | 2023-01-13 | 河北省建筑科学研究院有限公司 | Special anti-adsorbent for iron tailing sand and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617811B (en) * | 2012-03-21 | 2013-06-26 | 陕西科技大学 | Preparation method of amphiprotic vinyl polymer concrete mud-resistant agent |
| CN104177543B (en) * | 2014-08-18 | 2016-08-24 | 武汉格瑞林葛店混凝土外加剂有限公司 | A kind of agent on crack resistance of concrete mud agent and preparation method thereof |
| CN104479084B (en) * | 2014-12-05 | 2017-04-19 | 山西科腾环保科技股份有限公司 | Polycarboxylate based anti-mud agent and preparation method thereof |
| CN104891853B (en) * | 2015-06-05 | 2017-03-08 | 陕西友邦新材料科技有限公司 | A kind of anti-mud agent of the combination based on polycarboxylic-acid pumping admixture, anti-mud pumping admixture and preparation method thereof |
-
2016
- 2016-03-10 CN CN201610135410.6A patent/CN105731862B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105731862A (en) | 2016-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105731862B (en) | Anti- mud agent of diminishing and preparation method thereof | |
| CN109574538B (en) | Concrete glue reducing agent and preparation process and application method thereof | |
| CN107827386A (en) | Cement-based gelling material early-strength composition dispersant | |
| CN108585600A (en) | A kind of alkali-free liquid accelerator and preparation method thereof | |
| CN110776303B (en) | Magnesium phosphate cement repair mortar and preparation method thereof | |
| CN104497633A (en) | Nano calcium carbonate surface treatment method | |
| CN104371695A (en) | Slick water applied to shale gas industrialized fracturing exploitation and preparation method thereof | |
| CN105567192A (en) | Nanometer silica emulsion for well cementation, and preparation method and application thereof | |
| CN103833941A (en) | Comb type polycarboxylic acid efficient ceramic water reducer and preparation method and application thereof | |
| CN110963732A (en) | Environment-friendly alkali-free liquid accelerator and normal-temperature preparation method thereof | |
| CN108264257A (en) | A kind of polymer phosphate aluminium series is without chlorine without sulphur alkali-free liquid setting accelerator and preparation method thereof | |
| CN110255949B (en) | Concrete early strength agent and preparation method thereof | |
| CN109824835B (en) | Polycarboxylic acid water reducing agent and preparation method thereof | |
| CN110436868B (en) | Machine-sprayed surface layer plastering gypsum and preparation method thereof | |
| CN108046642A (en) | A kind of strong concrete accelerator | |
| Wang et al. | Effects of clay on properties of polycarboxylate superplasticizer and solutions | |
| CN109021179A (en) | A kind of phosphonic acids based polyalcohol and preparation method thereof and phosphate mother liquor | |
| CN112479624A (en) | Low-alkali liquid accelerator for sprayed concrete and preparation method thereof | |
| CN105254200B (en) | Cement grinding aid and preparation method thereof, application process | |
| CN113968695B (en) | Method for manufacturing viscosity-reducing dispersive concrete | |
| CN110550882A (en) | preparation method of concrete admixture | |
| CN107759122A (en) | A kind of concrete subtracts jelly | |
| CN113831445A (en) | Branched anti-mud sacrificial agent and preparation method thereof | |
| CN106746892A (en) | A kind of compounding poly carboxylic acid series water reducer based on steam-curing concrete and preparation method thereof | |
| CN109485289A (en) | A kind of high-alkali cement exciting agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |