CN107963829A - A kind of preparation process for the concrete additive for improving compressive property - Google Patents
A kind of preparation process for the concrete additive for improving compressive property Download PDFInfo
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- CN107963829A CN107963829A CN201711256201.8A CN201711256201A CN107963829A CN 107963829 A CN107963829 A CN 107963829A CN 201711256201 A CN201711256201 A CN 201711256201A CN 107963829 A CN107963829 A CN 107963829A
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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
- 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
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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
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00293—Materials impermeable to liquids
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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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
- 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
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- 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 invention discloses a kind of preparation process for the concrete additive for improving compressive property, the concrete additive, including following raw material：Flyash, silicon dioxide powder, polypropylene fibre, zeolite powder, lignin sulfonic acid calcium powder, acrylic emulsion, water, phosphoric acid propane diamine, polysulfone resin, acrylic rubber, 4 dimethylamino naphthyridines, poly- [(2 Oxyranyle) 1,2 cyclohexanediols] 2 ethyl 2 (methylol), 1,3 propylene glycol.The concrete additive be by modified material, mixing, drying prepare and etc. it is obtained.Concrete made of concrete additive using the present invention is remarkably improved compressive property, barrier performance, toughness properties.
Description
【Technical field】
The invention belongs to building material technical field, and in particular to a kind of concrete additive for improving compressive property
Preparation process.
【Background technology】
Concrete, referred to as " concrete ", typically refers to make cementitious material with cement, sand, masonry gather materials, with water by a certain percentage
Coordinate, agitated gained.The characteristics of concrete has abundant raw material, cheap, simple production process, makes its use scope ten
Divide extensively, not only used in various civil engineerings, be exactly shipbuilding industry, mechanical industry, the exploitation of ocean, geothermal engineering etc., mix
Solidifying soil is also important material.
During concrete is applied in Practical Project, various more harsh environment are commonly exposed to, as environment is corroded
Property medium intrusion, the change of ambient temperature and humidity, Frozen-thawed cycled destroy and part concrete works is ground often in heavy load
Damage etc., these external conditions will seriously affect the service life of concrete.Therefore, it is necessary to protective agent pair is added in concrete
Concrete carries out protective effect, technology of the existing concrete additive there are single, to concrete the maintenance effect difference of function
Deficiency.
A kind of Chinese patent application document " concrete additive and its concrete (publication number：CN106277900A it is) " open
A kind of concrete additive and its concrete, the concrete additive are made of the raw material of following parts by weight：Flyash
6-12 parts, 5-15 parts of silicon dioxide powder, 4-16 parts of polypropylene fibre, 4-10 parts of zeolite powder, 2-8 parts of lignin sulfonic acid calcium powder, third
5-15 parts of olefin(e) acid lotion, concrete tension, anti-folding, cracking resistance are good made of concrete additive using the present invention, and valency
Lattice are cheap, simple production process, cost are low, are adapted to large-scale production, but there is the concrete additive system using the invention
Into the compressive property of concrete, barrier performance, poor toughness properties the problem of.
【The content of the invention】
The technical problem to be solved in the present invention is to provide a kind of concrete additive for improving compressive property and its preparation
Technique, to solve in a kind of Chinese patent application document " concrete additive and its concrete (publication number：
CN106277900A on the basis of the additive and its concrete formulation disclosed in) ", how to optimize component, dosage, method etc., carry
Compressive property, barrier performance, the technical problem of toughness properties of high concrete.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of preparation process for the concrete additive for improving compressive property, comprises the following steps：
S1, modified material：Temperature be 230-250 DEG C under conditions of by flyash, silicon dioxide powder, polypropylene fibre,
After zeolite powder, lignin sulfonic acid calcium powder, acrylic emulsion, water are by weight 2.5-3.5h is mixed, sulfuric acid is added by temperature
280-300 DEG C is risen to, continues continuous stirring 1.5-2.5h, adding sulfuric acid needs, and adds for the first time mixed after 12-15 parts of sulfuric acid points for 2 times
Stirring 0.5-1h is closed, then stirring 0.3-0.5h is remixed after 4-5 parts of sulfuric acid of second of addition, modified material a is made；
S2, mixing：By modified material a made from step S1 and phosphoric acid propane diamine, polysulfone resin, acrylic rubber, 4-
Dimethylamino naphthyridine, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycols are pressed
Weight ratio mix, first by acrylic rubber, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -
1,3-PD ether adds phosphoric acid propane diamine, polysulfone resin, 4-dimethylaminopyridine after stirring 1-2h with modified material a,
12-16h is stirred under 250-280 DEG C of temperature conditionss, mixing material b is made；
It is prepared by S3, drying：By mixing material b made from step S2 with 130-160 DEG C of temperature under the conditions of closed environment
It is 2-4% to carry out being dried to water content, is then milled, and crosses 1000-2000 mesh sieve, and the mixed of compressive property can be improved by being made
Solidifying soil additive.
Further, the concrete additive, in units of parts by weight, including following raw material：Flyash 13-18
Part, 9-16 parts of silicon dioxide powder, 7-10 parts of polypropylene fibre, 12-20 parts of zeolite powder, 10-18 parts of lignin sulfonic acid calcium powder, propylene
16-25 parts of yogurt liquid, 16-20 parts of sulfuric acid, 120-180 parts of water, 12-22 parts of phosphoric acid propane diamine, 18-24 parts of polysulfone resin, propylene
30-45 parts of acid esters rubber, 13-18 parts of 4-dimethylaminopyridine, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -
40-60 parts of 2- (methylol) -1,3- propylene glycols.
Further, the concentration of the sulfuric acid is 5-12mol//L.
The invention has the advantages that：
(1) by the data of embodiment 1-3 as it can be seen that embodiment 1 is optimum embodiment, compressive property, the barrier properties of concrete
Energy, toughness properties resultant effect are best.
(2) by embodiment 2 and the data of comparative example 1-6 as it can be seen that phosphoric acid propane diamine, polysulfone resin, acrylic rubber, 4-
Dimethylamino naphthyridine, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycols are same
Shi Tianjia plays synergistic effect in the concrete additive that can improve compressive property is prepared, and addition concrete adds in concrete
Agent is added to significantly improve the compressive property of concrete, barrier performance, toughness properties, this is：Phosphoric acid propane diamine molecule has preferable
Activation, can cause acrylic rubber and poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (hydroxyl first
Base) -1,3-PD ether molecule activation forms stable structure, to improve coupling efficiency；Polysulfone resin possesses excellent rigidity
With toughness, creep-resistant property, while with poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3-
Propylene glycol can improve poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycols
Toughness, and formed and possess the structures of viscose properties；4-dimethylaminopyridine possesses preferable catalytic action, for complicated bottom
Thing molecule, can improve reaction selectivity, improve poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (hydroxyl first
Base) -1,3- propylene glycols and acrylic rubber reaction rate and yield；Poly- [(2- Oxyranyles) -1,2- hexamethylenes two
Alcohol] 2- ethyls -2- (methylol) -1,3-PD ether possesses preferable compression and tensile strength, puts cruelly in hot conditions for a long time
Under remain to keep good mechanical property；Though acrylic rubber tear resistance it is poor with excellent cold resistance,
Wearability ageing-resistant performance.When phosphoric acid propane diamine, polysulfone resin, acrylic rubber, 4-dimethylaminopyridine, poly- [(2- epoxies
Ethyl group) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3-PD ether compatible use when, polysulfone resin improves
The toughness of high poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3-PD ether, while with
High poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycols molecule formation possesses viscous
The structure of colloidality energy, then forms with acrylic rubber molecule under the catalytic action of 4-dimethylaminopyridine and possesses excellent resist
The molecular structure of Compressive Strength, barrier performance and toughness properties, at this time phosphoric acid propane diamine activated acrylate rubber and poly- [(2-
Oxyranyle) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycol molecule activations form stable knot
Structure, and the other compositions of activating additive, improve flyash, silicon dioxide powder, polypropylene fibre, zeolite powder, lignin sulfonic acid
Calcium powder, acrylic emulsion, phosphoric acid propane diamine, polysulfone resin, acrylic rubber, 4-dimethylaminopyridine, poly- [(2- epoxy second
Alkyl) -1,2- cyclohexanediols] 2- ethyls -2- (the methylol)-intermolecular coupling efficiency of 1,3-PD ether, so as to improve mixed
Coagulate native compressive property, barrier performance, toughness properties.
(3) by the data of embodiment 1-3 comparative examples 7 as it can be seen that the compressive property of embodiment 1-3 concrete, barrier performance, tough
Property performance is significantly higher than the compressive property of 7 concrete of comparative example, barrier performance, toughness properties.
(4) the phosphoric acid propane diamine in the present invention, polysulfone resin, acrylic rubber, 4-dimethylaminopyridine, poly- [(2- rings
Oxirane group) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3-PD ether as reinforcement system,
Embodiment 1-3 is by controlling phosphoric acid propane diamine, polysulfone resin, acrylic rubber, 4-dimethylaminopyridine, poly-
The weight ratio of [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycols is (12-22):
(18-24):(30-45):(13-18):(40-60), realizes and is used as system using 4-dimethylaminopyridine in whole reinforcement system
Leading role raw material, it is the excellent rigidity of polysulfone resin, toughness, anti-compacted while using the activity function of phosphoric acid propane diamine molecule
Become performance, excellent cold resistance, the wearability ageing-resistant performance of acrylic rubber, poly- [(2- Oxyranyles) -1,2- hexamethylenes two
Alcohol] 2- ethyls -2- (methylol) -1,3-PD ether compression and tensile strength performance so that whole reinforcement system fortune
Use the compressive property that concrete can be effectively improved in the concrete of the present invention, barrier performance, toughness properties.
【Embodiment】
For ease of more fully understanding the present invention, it is illustrated by following instance, these examples belong to the protection of the present invention
Scope, but do not limit the scope of the invention.
In embodiment, the concrete additive for improving compressive property, in units of parts by weight, including it is following
Raw material：13-18 parts of flyash, 9-16 parts of silicon dioxide powder, 7-10 parts of polypropylene fibre, 12-20 parts of zeolite powder, lignin sulfonic acid
10-18 parts of calcium powder, 16-25 parts of acrylic emulsion, 16-20 parts of sulfuric acid, 120-180 parts of water, 12-22 parts of phosphoric acid propane diamine, polysulfones
18-24 parts of resin, 30-45 parts of acrylic rubber, 13-18 parts of 4-dimethylaminopyridine, poly- [(2- Oxyranyles) -1,2-
Cyclohexanediol] 40-60 parts of 2- ethyls -2- (methylol) -1,3- propylene glycols；
The concentration of the sulfuric acid is 5-12mol//L；
The preparation process of the concrete additive for improving compressive property, comprises the following steps：
S1, modified material：Temperature be 230-250 DEG C under conditions of by flyash, silicon dioxide powder, polypropylene fibre,
After zeolite powder, lignin sulfonic acid calcium powder, acrylic emulsion, water are by weight 2.5-3.5h is mixed, sulfuric acid is added by temperature
280-300 DEG C is risen to, continues continuous stirring 1.5-2.5h, adding sulfuric acid needs, and adds for the first time mixed after 12-15 parts of sulfuric acid points for 2 times
Stirring 0.5-1h is closed, then stirring 0.3-0.5h is remixed after 4-5 parts of sulfuric acid of second of addition, modified material a is made；
S2, mixing：By modified material a made from step S1 and phosphoric acid propane diamine, polysulfone resin, acrylic rubber, 4-
Dimethylamino naphthyridine, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycols are pressed
Weight ratio mix, first by acrylic rubber, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -
1,3-PD ether adds phosphoric acid propane diamine, polysulfone resin, 4-dimethylaminopyridine after stirring 1-2h with modified material a,
12-16h is stirred under 250-280 DEG C of temperature conditionss, mixing material b is made；
It is prepared by S3, drying：By mixing material b made from step S2 with 130-160 DEG C of temperature under the conditions of closed environment
It is 2-4% to carry out being dried to water content, is then milled, and crosses 1000-2000 mesh sieve, and the mixed of compressive property can be improved by being made
Solidifying soil additive.
A kind of concrete, in units of parts by weight, including following raw material：80-110 parts of cement, 16-24 parts of sand, rubble 12-
20 parts, 30-40 parts of water, 20-30 parts of the concrete additive that compressive property can be improved.
Below by more specific embodiment, the present invention will be described.
Embodiment 1
A kind of concrete additive for improving compressive property, in units of parts by weight, including following raw material：Flyash 15
Part, 14 parts of silicon dioxide powder, 8 parts of polypropylene fibre, 17 parts of zeolite powder, 15 parts of lignin sulfonic acid calcium powder, 20 parts of acrylic emulsion,
18 parts of sulfuric acid, 160 parts of water, 20 parts of phosphoric acid propane diamine, 21 parts of polysulfone resin, 38 parts of acrylic rubber, 4-dimethylaminopyridine
16 parts, poly- 52 parts of [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycols；
The concentration of the sulfuric acid is 10mol//L；
The preparation process of the concrete additive for improving compressive property, comprises the following steps：
S1, modified material：By flyash, silicon dioxide powder, polypropylene fibre, zeolite under conditions of being 246 DEG C in temperature
After powder, lignin sulfonic acid calcium powder, acrylic emulsion, water are by weight 3h is mixed, add sulfuric acid and temperature risen to 290 DEG C,
Continue continuous stirring 2h, add sulfuric acid needs points for 2 times, and 0.9h is mixed after adding 13 parts of sulfuric acid for the first time, then adds for second
Stirring 0.4h is remixed after entering 5 parts of sulfuric acid, modified material a is made；
S2, mixing：By modified material a made from step S1 and phosphoric acid propane diamine, polysulfone resin, acrylic rubber, 4-
Dimethylamino naphthyridine, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycols are pressed
Weight ratio mix, first by acrylic rubber, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -
1,3-PD ether adds phosphoric acid propane diamine, polysulfone resin, 4-dimethylaminopyridine after stirring 1.5h with modified material a,
15h is stirred under 270 DEG C of temperature conditionss, mixing material b is made；
It is prepared by S3, drying：Mixing material b made from step S2 is carried out under the conditions of closed environment with 150 DEG C of temperature
It is 3% to be dried to water content, is then milled, and crosses 1500 mesh sieve, and the concrete additive that can improve compressive property is made.
A kind of concrete, in units of parts by weight, including following raw material：100 parts of cement, 22 parts husky, 18 parts of rubble, water 36
Part, 25 parts of the concrete additive that compressive property can be improved.
Embodiment 2
A kind of concrete additive for improving compressive property, in units of parts by weight, including following raw material：Flyash 18
Part, 16 parts of silicon dioxide powder, 7 parts of polypropylene fibre, 12 parts of zeolite powder, 10 parts of lignin sulfonic acid calcium powder, 16 parts of acrylic emulsion,
16 parts of sulfuric acid, 120 parts of water, 22 parts of phosphoric acid propane diamine, 18 parts of polysulfone resin, 45 parts of acrylic rubber, 4-dimethylaminopyridine
13 parts, poly- 60 parts of [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycols；
The concentration of the sulfuric acid is 5mol//L；
The preparation process of the concrete additive for improving compressive property, comprises the following steps：
S1, modified material：By flyash, silicon dioxide powder, polypropylene fibre, zeolite under conditions of being 230 DEG C in temperature
After powder, lignin sulfonic acid calcium powder, acrylic emulsion, water are by weight 3.5h is mixed, add sulfuric acid and temperature is risen to 280
DEG C, continue continuous stirring 2.5h, add sulfuric acid needs points for 2 times, and 0.5h is mixed after 12 parts of sulfuric acid of addition for the first time, and then second
Stirring 0.3h is remixed after 4 parts of sulfuric acid of secondary addition, modified material a is made；
S2, mixing：By modified material a made from step S1 and phosphoric acid propane diamine, polysulfone resin, acrylic rubber, 4-
Dimethylamino naphthyridine, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycols are pressed
Weight ratio mix, first by acrylic rubber, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -
1,3-PD ether after modified material a stirrings 1h with adding phosphoric acid propane diamine, polysulfone resin, 4-dimethylaminopyridine, 250
DEG C temperature conditionss under stir 16h, mixing material b is made；
It is prepared by S3, drying：Mixing material b made from step S2 is carried out under the conditions of closed environment with 130 DEG C of temperature
It is 2% to be dried to water content, is then milled, and crosses 1000 mesh sieve, and the concrete additive that can improve compressive property is made.
A kind of concrete, in units of parts by weight, including following raw material：80 parts of cement, 16 parts husky, 12 parts of rubble, water 30
Part, 20 parts of the concrete additive that compressive property can be improved.
Embodiment 3
A kind of concrete additive for improving compressive property, in units of parts by weight, including following raw material：Flyash 13
Part, 9 parts of silicon dioxide powder, 10 parts of polypropylene fibre, 20 parts of zeolite powder, 18 parts of lignin sulfonic acid calcium powder, 25 parts of acrylic emulsion,
20 parts of sulfuric acid, 180 parts of water, 12 parts of phosphoric acid propane diamine, 24 parts of polysulfone resin, 30 parts of acrylic rubber, 4-dimethylaminopyridine
18 parts, poly- 40 parts of [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycols；
The concentration of the sulfuric acid is 12mol//L；
The preparation process of the concrete additive for improving compressive property, comprises the following steps：
S1, modified material：By flyash, silicon dioxide powder, polypropylene fibre, zeolite under conditions of being 250 DEG C in temperature
After powder, lignin sulfonic acid calcium powder, acrylic emulsion, water are by weight 2.5h is mixed, add sulfuric acid and temperature is risen to 300
DEG C, continue continuous stirring 1.5h, add sulfuric acid needs points for 2 times, 1h is mixed after adding 15 parts of sulfuric acid for the first time, then for the second time
Stirring 0.5h is remixed after adding 45 parts of sulfuric acid, modified material a is made；
S2, mixing：By modified material a made from step S1 and phosphoric acid propane diamine, polysulfone resin, acrylic rubber, 4-
Dimethylamino naphthyridine, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycols are pressed
Weight ratio mix, first by acrylic rubber, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -
1,3-PD ether after modified material a stirrings 2h with adding phosphoric acid propane diamine, polysulfone resin, 4-dimethylaminopyridine, 280
DEG C temperature conditionss under stir 12h, mixing material b is made；
It is prepared by S3, drying：Mixing material b made from step S2 is carried out under the conditions of closed environment with 160 DEG C of temperature
It is 4% to be dried to water content, is then milled, and crosses 2000 mesh sieve, and the concrete additive that can improve compressive property is made.
A kind of concrete, in units of parts by weight, including following raw material：110 parts of cement, 24 parts husky, 20 parts of rubble, water 40
Part, 30 parts of the concrete additive that compressive property can be improved.
Comparative example 1
Concrete additive, the concrete making technology that preparation with embodiment 1 can improve compressive property are essentially identical, have only not
Same is to lack phosphoric acid propane diamine, polysulfone resin, acrylic acid in the raw material for prepare the concrete additive that can improve compressive property
Ester rubber, 4-dimethylaminopyridine, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- third
Glycol ethers.
Comparative example 2
Concrete additive, the concrete making technology that preparation with embodiment 1 can improve compressive property are essentially identical, have only not
Same is to lack phosphoric acid propane diamine in the raw material for prepare the concrete additive that can improve compressive property.
Comparative example 3
Concrete additive, the concrete making technology that preparation with embodiment 1 can improve compressive property are essentially identical, have only not
Same is to lack polysulfone resin in the raw material for prepare the concrete additive that can improve compressive property.
Comparative example 4
Concrete additive, the concrete making technology that preparation with embodiment 1 can improve compressive property are essentially identical, have only not
Same is to lack acrylic rubber in the raw material for prepare the concrete additive that can improve compressive property.
Comparative example 5
Concrete additive, the concrete making technology that preparation with embodiment 1 can improve compressive property are essentially identical, have only not
Same is to lack 4-dimethylaminopyridine in the raw material for prepare the concrete additive that can improve compressive property.
Comparative example 6
Concrete additive, the concrete making technology that preparation with embodiment 1 can improve compressive property are essentially identical, have only not
Same is to lack poly- [(2- Oxyranyles) -1,2- hexamethylenes in the raw material for prepare the concrete additive that can improve compressive property
Glycol] 2- ethyls -2- (methylol) -1,3- propylene glycols.
Comparative example 7
Using a kind of Chinese patent application document " concrete additive and its concrete (publication number：CN106277900A)”
The technique of embodiment 1-3 prepares concrete additive and concrete.
The compressive property of the concrete of measurement embodiment 1-3 and comparative example 1-7, barrier performance, toughness properties, the result is shown under
Table：
(1) by the data of embodiment 1-3 as it can be seen that embodiment 1 is optimum embodiment, compressive property, the barrier properties of concrete
Energy, toughness properties resultant effect are best.
(2) by embodiment 2 and the data of comparative example 1-6 as it can be seen that phosphoric acid propane diamine, polysulfone resin, acrylic rubber, 4-
Dimethylamino naphthyridine, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycols are same
Shi Tianjia plays synergistic effect in the concrete additive that can improve compressive property is prepared, and addition concrete adds in concrete
Agent is added to significantly improve the compressive property of concrete, barrier performance, toughness properties, this is：Phosphoric acid propane diamine molecule has preferable
Activation, can cause acrylic rubber and poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (hydroxyl first
Base) -1,3-PD ether molecule activation forms stable structure, to improve coupling efficiency；Polysulfone resin possesses excellent rigidity
With toughness, creep-resistant property, while with poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3-
Propylene glycol can improve poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycols
Toughness, and formed and possess the structures of viscose properties；4-dimethylaminopyridine possesses preferable catalytic action, for complicated bottom
Thing molecule, can improve reaction selectivity, improve poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (hydroxyl first
Base) -1,3- propylene glycols and acrylic rubber reaction rate and yield；Poly- [(2- Oxyranyles) -1,2- hexamethylenes two
Alcohol] 2- ethyls -2- (methylol) -1,3-PD ether possesses preferable compression and tensile strength, puts cruelly in hot conditions for a long time
Under remain to keep good mechanical property；Though acrylic rubber tear resistance it is poor with excellent cold resistance,
Wearability ageing-resistant performance.When phosphoric acid propane diamine, polysulfone resin, acrylic rubber, 4-dimethylaminopyridine, poly- [(2- epoxies
Ethyl group) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3-PD ether compatible use when, polysulfone resin improves
The toughness of high poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3-PD ether, while with
High poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycols molecule formation possesses viscous
The structure of colloidality energy, then forms with acrylic rubber molecule under the catalytic action of 4-dimethylaminopyridine and possesses excellent resist
The molecular structure of Compressive Strength, barrier performance and toughness properties, at this time phosphoric acid propane diamine activated acrylate rubber and poly- [(2-
Oxyranyle) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycol molecule activations form stable knot
Structure, and the other compositions of activating additive, improve flyash, silicon dioxide powder, polypropylene fibre, zeolite powder, lignin sulfonic acid
Calcium powder, acrylic emulsion, phosphoric acid propane diamine, polysulfone resin, acrylic rubber, 4-dimethylaminopyridine, poly- [(2- epoxy second
Alkyl) -1,2- cyclohexanediols] 2- ethyls -2- (the methylol)-intermolecular coupling efficiency of 1,3-PD ether, so as to improve mixed
Coagulate native compressive property, barrier performance, toughness properties.
(3) by the data of embodiment 1-3 comparative examples 7 as it can be seen that the compressive property of embodiment 1-3 concrete, barrier performance, tough
Property performance is significantly higher than the compressive property of 7 concrete of comparative example, barrier performance, toughness properties.
Phosphoric acid propane diamine, polysulfone resin, acrylic rubber, 4-dimethylaminopyridine, poly- [(2- epoxies in the present invention
Ethyl group) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3-PD ether passes through as reinforcement system, embodiment 1-3
Control phosphoric acid propane diamine, polysulfone resin, acrylic rubber, 4-dimethylaminopyridine, poly- [(2- Oxyranyles) -1,2- rings
Hexylene glycol] weight ratio of 2- ethyls -2- (methylol) -1,3- propylene glycols is (12-22):(18-24):(30-45):(13-
18):(40-60), realizes the leading role raw material using 4-dimethylaminopyridine as system in whole reinforcement system, while profit
With the activity function of phosphoric acid propane diamine molecule, the excellent rigidity of polysulfone resin, toughness, creep-resistant property, acrylic rubber
Excellent cold resistance, wearability ageing-resistant performance, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -
The compression of 1,3-PD ether and tensile strength performance, so that whole reinforcement system applies to energy in concrete of the invention
Enough effectively improve the compressive property of concrete, barrier performance, toughness properties.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of preparation process for the concrete additive for improving compressive property, it is characterised in that comprise the following steps：
S1, modified material：By flyash, silicon dioxide powder, polypropylene fibre, zeolite under conditions of being 230-250 DEG C in temperature
After powder, lignin sulfonic acid calcium powder, acrylic emulsion, water are by weight 2.5-3.5h is mixed, add sulfuric acid and rise to temperature
280-300 DEG C, continue continuous stirring 1.5-2.5h, add sulfuric acid needs points for 2 times, mixes stir after 12-15 parts of sulfuric acid of addition for the first time
0.5-1h is mixed, then stirring 0.3-0.5h is remixed after 4-5 parts of sulfuric acid of second of addition, modified material a is made；
S2, mixing：By modified material a made from step S1 and phosphoric acid propane diamine, polysulfone resin, acrylic rubber, 4- diformazans
Aminopyridine, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- propylene glycols are by weight
Than mixing, first by acrylic rubber, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3-
Propylene glycol after modified material a stirrings 1-2h with adding phosphoric acid propane diamine, polysulfone resin, 4-dimethylaminopyridine, in 250-
12-16h is stirred under 280 DEG C of temperature conditionss, mixing material b is made；
It is prepared by S3, drying：Mixing material b made from step S2 is carried out under the conditions of closed environment with 130-160 DEG C of temperature
It is 2-4% to be dried to water content, is then milled, and crosses 1000-2000 mesh sieve, and the concrete that can improve compressive property is made
Additive.
2. the preparation process of the concrete additive according to claim 1 for improving compressive property, it is characterised in that institute
The concrete additive stated, in units of parts by weight, including following raw material：13-18 parts of flyash, 9-16 parts of silicon dioxide powder,
7-10 parts of polypropylene fibre, 12-20 parts of zeolite powder, 10-18 parts of lignin sulfonic acid calcium powder, 16-25 parts of acrylic emulsion, sulfuric acid
16-20 parts, 120-180 parts of water, 12-22 parts of phosphoric acid propane diamine, 18-24 parts of polysulfone resin, 30-45 parts of acrylic rubber, 4-
13-18 parts of dimethylamino naphthyridine, poly- [(2- Oxyranyles) -1,2- cyclohexanediols] 2- ethyls -2- (methylol) -1,3- the third two
40-60 parts of alcohol ether.
3. the preparation process of the concrete additive according to claim 2 for improving compressive property, it is characterised in that institute
The concentration for stating sulfuric acid is 5-12mol//L.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113754342A (en) * | 2021-10-13 | 2021-12-07 | 湖北建州新型材料有限公司 | Preparation process of ecological concrete additive |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754342A (en) * | 2021-10-13 | 2021-12-07 | 湖北建州新型材料有限公司 | Preparation process of ecological concrete additive |
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