CN109553375A - A kind of retarded concrete and its preparation process - Google Patents
A kind of retarded concrete and its preparation process Download PDFInfo
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- CN109553375A CN109553375A CN201811646935.1A CN201811646935A CN109553375A CN 109553375 A CN109553375 A CN 109553375A CN 201811646935 A CN201811646935 A CN 201811646935A CN 109553375 A CN109553375 A CN 109553375A
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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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
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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
-
- 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
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
Abstract
The problem of the invention discloses a kind of retarded concrete and its preparation processes, are related to technical field of concrete, solve because the retarding effect of concrete is bad, use after causing it to be unfavorable for progress long-time transport.Component including following parts by weight: 180~200 parts of water；320~350 parts of portland cement；450~480 parts of middle sand；700~780 parts of stone；230~260 parts of mixed fillers；6~10 parts of retarder；4.5~6.5 parts of water-reducing agent；35~45 parts of gypsum；20~32 parts of waterglass；70~90 parts of expanded perlite；8~12 parts of water-soluble polyaniline.Retarded concrete in the present invention has good retarding effect, and is not easy to solidify in the transportational process of long period, also has good using effect.
Description
Technical field
The present invention relates to technical field of concrete, more specifically, it relates to a kind of retarded concrete and its preparation process.
Background technique
Concrete, which refers to, makees cementitious material with cement, and sand, masonry aggregate are matched by a certain percentage with water, additive, admixture
Close, it is agitated obtained by cement concrete, also referred to as normal concrete, it is widely used in civil engineering.
Metallic fiber concrete and its production work are disclosed in the Chinese invention patent that notification number is CN106915937A
Skill, raw material include: 290~310 parts of cement, 100~150 parts of miberal powder, 150~200 parts of flyash, 450~500 parts of sand,
700~750 parts of stone, 150~160 parts of water, 20~30 parts oxidation-treated of metallic fiber, 2~3 parts of maleic acid, maleic acid
0.5~0.8 part of dimethyl ester, 1~2 part of polyethylene glycol oxide；Wherein, oxidation-treated metallic fiber is prepared with the following method:
Step 1a: the metallic fiber of not oxidised processing is immersed in the mixed solution of sodium metasilicate and sodium chloride, and temperature is 120~125
Under conditions of DEG C, 10~13min is heated；Step 2a: be again 65~70 DEG C with temperature, the aqueous solution of pH=7.1 rinse 2~
3min, drying, obtains oxidation-treated metallic fiber.
In above-mentioned patent, it is used in compounding by maleic acid, dimethyl maleate and polyethylene glycol oxide, makes metallic fiber
What is be distributed in concrete is more uniform, and then improves the compression strength and flexural strength of metallic fiber concrete entirety, but gold
The retarding effect for belonging to fiber concrete entirety is poor, and whole setting time is shorter, it is caused to be unfavorable for after carrying out long-time transport
It uses, and then the problem for causing the overall applicability of metallic fiber concrete poor, it is, therefore, desirable to provide a kind of new scheme is come
It solves the above problems.
Summary of the invention
It is bad for the retarding effect in the prior art because of concrete, cause it to be unfavorable for using after carrying out long-time transport
The problem of, the purpose of the present invention one is to provide a kind of retarded concrete, by shortening the hydration time of portland cement, with solution
Certainly above-mentioned technical problem is not easy to solidify with good retarding effect, and in the transportational process of long period, also has good
Good using effect.
To achieve the above object one, the present invention provides following technical solution, the component including following parts by weight:
180~200 parts of water；
320~350 parts of portland cement；
450~480 parts of middle sand；
700~780 parts of stone；
230~260 parts of mixed fillers；
6~10 parts of retarder；
4.5~6.5 parts of water-reducing agent；
35~45 parts of gypsum；
20~32 parts of waterglass；
70~90 parts of expanded perlite；
8~12 parts of water-soluble polyaniline.
By using above-mentioned technical proposal, it is good filling that mixed fillers, which mainly include slag, flyash, miberal powder etc.,
Property, it is filled between each component, reduces the gap of bituminous concrete, the structural strength of retarded concrete can be made to mention significantly
It is high.Retarder is a kind of additive for reducing cement or gypsum hydration rate and the heat of hydration, extension setting time, extends cement
The hydration and hardening time, fresh concrete is enable to keep plasticity in a long time, to adjust the setting time of fresh concrete.
Water-reducing agent is a kind of under conditions of maintaining the retarded concrete slump to be basically unchanged, and the concrete that can be reduced water consumption is additional
Agent.
Waterglass is a kind of water-soluble silicate, and cohesive force is strong, intensity is higher, and the compactness of retarded concrete can be improved,
The structural strength for keeping it whole greatly improves, and the slag in waterglass and mixed fillers plays good fiting effect, makes to delay
The setting time of solidifying concrete greatly prolongs.Gypsum can form protective film in portland cement particle surface, block cement granules
Hydration reaction improve the setting time of retarded concrete to play deferred action.
The inside of expanded perlite has interlaced aperture, and the surface of expanded perlite can make it in opening
Its component can enter in the aperture of expanded perlite, and have certain water storage function.Meanwhile water-soluble polyaniline is with good
Good chemical property, can react with the metal ion in retarded concrete, and form one layer in the inside of retarded concrete
Oxidation film, oxidation film and waterglass, gypsum and expanded perlite collective effect, drop the hydration rate of portland cement significantly
It is low, and then make retarded concrete that there is good retarding effect.
Further preferably, the wood fibre that parts by weight are 15~20 parts is additionally added in the retarded concrete.
By using above-mentioned technical proposal, lignocellulosic has excellent flexibility and dispersibility, forms three after mixing
Tie up reticular structure, enhance the support force and endurance of retarded concrete, can improve retarded concrete entirety stability, by force
Degree, compactness and the uniformity.Meanwhile wood fibre has very strong antifreeze and anti-thermal energy power, makes the aquation speed of portland cement
Rate substantially reduces, and then so that retarded concrete is kept good stability during transportation, and whole with good use
Effect.
Further preferably, the wood fibre is modified processing, and modification includes the following steps:
The wood fibre of corresponding parts by weight is put into sodium hyaluronate solution and is soaked for a period of time by S1, and impregnate during into
Row ultrasonic disperse；
S2 will impregnate the wood fibre finished in sodium hyaluronate solution and take out, and is sprayed with and its weight fraction ratio on its surface
For 1:(2~3) natural petit grain oil；
S3, after absorbing wood fibre by the clear oil of natural perfume, after wood fibre first to be carried out to natural air drying for a period of time, then
Drying a period of time is carried out, and the moisture content of wood fibre is made to be maintained at 25~40%.
By using above-mentioned technical proposal, wood fibre is immersed in sodium hyaluronate solution, making to absorb in wood fibre has
Sodium hyaluronate, and sodium hyaluronate has good water storage and water absorbing capacity, greatly improves the water absorbing capacity of wood fibre.Meanwhile so
After make wood fibre absorption have the clear oil of natural perfume, be wood fibre after absorbing moisture, the moisture in wood-fibred can be lockked, make to delay
Solidifying concrete is not easy quickly to solidify, and has good associativity between modified wood fibre and other each components, can be with
The compactness for greatly improving retarded concrete makes retarded concrete have good structural strength after solidifying in type.
Further preferably, the limestone powder that parts by weight are 30~50 parts is additionally added in the retarded concrete.
By using above-mentioned technical proposal, there is good associativity between limestone powder and each component, keeps slow setting mixed
Solidifying soil has good mobility, convenient for pouring to retarded concrete.Meanwhile the calcium content in limestone powder is higher,
When it is used in mixed way with waterglass, good compounding effect can be played, it is made to generate one layer of glue with waterglass fast reaction
Body protective film greatly improves the retarding effect of retarded concrete entirety, and its overall structural strength after solidifying is strengthened.
Further preferably, the mixed fillers mainly include flyash, miberal powder and bentonite, and flyash, miberal powder and
Bentonitic weight fraction ratio is 1:(0.8~1.2): (1.5~2.5).
By using above-mentioned technical proposal, the adding coal ash in retarded concrete can save the use of portland cement
Amount, moreover it is possible to reduce water consumption, and improve the workability of retarded concrete mix, it is swollen with heat to reduce creeping for concrete
Swollen property.Miberal powder can effectively improve the compression strength of concrete, reduce the cost of concrete, and can improve concrete density, and
There is positive effect improving impervious and corrosion resistance.Bentonite has strong hygroscopicity, adsorbable 8~15 times of own vols
Water, volume expansion simultaneously can be dispersed into as a form of gel and suspension, and strong adsorption in an aqueous medium, and maximal absorptive capacity is up to 5
Times itself weight, can make retarded concrete have good structural strength after curing molding, and make retarded concrete
It is not easy rapid curing in use.
Further preferably, the retarder selects prodan, sodium tripolyphosphate, sodium gluconate, citric acid, winestone
One of acid is a variety of.
By using above-mentioned technical proposal, prodan, sodium tripolyphosphate, sodium gluconate, citric acid and tartaric acid are equal
For good retarder, can delay the induction period of hydrated reaction of cement, that is, to extend the presetting period of cement, absorption can also be passed through
The effects of prevent or delay the mutual adsorption-condensation of hydrolysis product of cement at the rate of continuous net-shaped flocculent structure, to extend slow
Solidifying concrete coherent structure extends the setting time of retarded concrete there are time and the time converted to crystalline texture.
Retarder can also generate unstable complex compound in the inside of retarded concrete, generate deferred action, and with hydration process
Progress, this unstable complex compound will decompose voluntarily, and aquation will continue to be normally carried out, and have no effect on cement further hydration.
Further preferably, the water-reducing agent select one of sodium lignin sulfonate, sodium sulfite, tannin, sugar calcium or
It is a variety of.
By using above-mentioned technical proposal, sodium lignin sulfonate, sodium sulfite, tannin and sugar calcium are good diminishing
Agent, and there is good peptizaiton to each component raw material of retarded concrete, it can be reduced unit consumption of water, and it is mixed to improve slow setting
Coagulate the mobility of soil.Meanwhile a variety of water-reducing agents can reduce the bleeding rate of retarded concrete, make slow setting coagulation when being used in mixed way
Soil is with good stability during transportation, and is not easy quickly to solidify.
The purpose of the present invention two is to provide a kind of preparation process of retarded concrete, be mixed using the slow setting of this method preparation
Solidifying soil has good retarding effect, and is not easy to solidify in the transportational process of long period.
To achieve the above object two, the present invention provides following technical solutions, comprising the following steps:
Step 1 is abundant by the portland cement of corresponding parts by weight, middle sand, stone, mixed fillers, expanded perlite and gypsum
Mixing forms mixture；
The retarder of corresponding parts by weight and water-reducing agent are added to the water, are sufficiently mixed by step 2, form mixed liquor；
The waterglass of corresponding parts by weight and water-soluble polyaniline are added in mixed liquor, are sufficiently mixed, obtain base by step 3
Material；
Mixture in step 1 is added in base-material, is sufficiently mixed, retarded concrete can be obtained by step 4.
By using above-mentioned technical proposal, keep the technological operation for preparing retarded concrete relatively simple, and can quickly make
It is quickly uniformly mixed between each component, makes slow setting coagulation body production efficiency with higher, overall quality can also be guaranteed.Together
When, the retarded concrete obtained using the preparation process is not easy quickly to solidify in use, and has after curing molding
Good structural strength.
In conclusion compared with prior art, the invention has the following advantages:
(1) water-soluble polyaniline has good chemical property, can react with the metal ion in retarded concrete, and
The inside of retarded concrete forms layer oxide film, substantially reduces the hydration rate of portland cement, and then make slow setting coagulation
Soil has good retarding effect；
(2) wood fibre has very strong antifreeze and anti-thermal energy power, substantially reduces the hydration rate of portland cement, and to wood
Matter fiber is modified processing, and retarded concrete is made to be not easy quickly to solidify, and modified wood fibre and other each groups divide it
Between there is good associativity, the compactness of retarded concrete can be greatly improved, have retarded concrete in after type solidifying
There is good structural strength；
(3) calcium content in limestone powder is higher, when being used in mixed way with waterglass, can play good compounding effect,
So that it is generated one layer of colloid protective film with waterglass fast reaction, greatly improve the retarding effect of retarded concrete entirety,
And its overall structural strength after solidifying is strengthened.
Detailed description of the invention
Fig. 1 is the preparation technology flow chart of retarded concrete in the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be described in detail.
Embodiment 1: a kind of retarded concrete, each component and its corresponding parts by weight are as shown in table 1, and by walking as follows
Suddenly it prepares:
Step 1 is stirring the portland cement of corresponding parts by weight, middle sand, stone, mixed fillers, expanded perlite and gypsum
It mixes and is stirred mixing in pot, revolving speed 800rpm, time 40min form mixture；
The prodan of corresponding parts by weight and sodium lignin sulfonate are added to the water, dispersion machine are used in agitator by step 2
It is stirred mixing, dispersing speed 600rpm, time 10min form mixed liquor；
Step 3, it is mixed by being stirred in the waterglass of corresponding parts by weight and water-soluble polyaniline addition mixed liquor with dispersion machine
It closes, dispersing speed 400rpm, time 8min obtain base-material；
Mixture in step 1 is added in base-material step 4, is stirred mixing in mixing plant, revolving speed 1000rpm,
Time is 30min, and retarded concrete can be obtained.
Note: the mixed fillers of above-mentioned steps one kind are made of flyash, miberal powder and bentonite, and flyash, miberal powder and swollen
The weight fraction ratio of profit soil is 1:1:2.
Embodiment 2-8: a kind of retarded concrete, difference from example 1 is that, each component and its corresponding weight
Number is as shown in table 1.
Each component and its parts by weight in 1 embodiment 1-8 of table
Embodiment 9: a kind of retarded concrete, difference from example 1 is that, the mixed fillers of step one kind are by fine coal
Ash, miberal powder and bentonite composition, and flyash, miberal powder and bentonitic weight fraction ratio are 1:1.2:2.5.
Embodiment 10: a kind of retarded concrete, difference from example 1 is that, the mixed fillers of step one kind by
Flyash, miberal powder and bentonite composition, and flyash, miberal powder and bentonitic weight fraction ratio are 1:0.8:1.5.
Embodiment 11: a kind of retarded concrete, difference from example 1 is that, step 2 specifically includes following step
It suddenly, is that 6 parts of prodan, 6.5 parts of sodium lignin sulfonate and 15 parts of wood fibre are added to the water by corresponding parts by weight,
It is stirred mixing with dispersion machine in agitator, dispersing speed 600rpm, time 10min form mixed liquor.
Embodiment 12: a kind of retarded concrete, difference from example 1 is that, step 2 specifically includes following step
It suddenly, is that water is added in 6 parts of prodan, 6.5 parts of sodium lignin sulfonate and 17.5 parts of wood fibre by corresponding parts by weight
In, it is stirred mixing with dispersion machine in agitator, dispersing speed 600rpm, time 10min form mixed liquor.
Embodiment 13: a kind of retarded concrete, difference from example 1 is that, step 2 specifically includes following step
It suddenly, is that 6 parts of prodan, 6.5 parts of sodium lignin sulfonate and 20 parts of wood fibre are added to the water by corresponding parts by weight,
It is stirred mixing with dispersion machine in agitator, dispersing speed 600rpm, time 10min form mixed liquor.
Embodiment 14: a kind of retarded concrete, difference from example 1 is that, the wood fibre is modified
Processing, and modification includes the following steps:
The wood fibre of corresponding parts by weight is put into after impregnating 10min in sodium hyaluronate solution, and temperature is made to maintain 30 by S1
DEG C, and ultrasonic disperse is carried out during impregnating；
S2 will impregnate the wood fibre that finishes in sodium hyaluronate solution and take out, and be sprayed with by atomizer on its surface and
Its weight fraction ratio is the natural petit grain oil of 1:2；
S3 after wood fibre is first carried out natural air drying 10min, then is put after absorbing wood fibre by the clear oil of natural perfume
Enter and carry out drying 5min in baking oven, the temperature of baking oven is 40 DEG C, and the moisture content of wood fibre is made to be maintained at 25~40%.
Embodiment 15: a kind of retarded concrete, the difference is that, step 1 specifically includes following step with embodiment 14
Suddenly, by corresponding parts by weight be 350 parts portland cement, 450 parts of middle sand, 700 parts of stone, 260 parts of mixed fillers,
70 parts of expanded perlite, 35 parts of gypsum and 30 parts of limestone powder are stirred mixing in agitated kettle, and revolving speed is
800rpm, time 40min form mixture.
Embodiment 16: a kind of retarded concrete, the difference is that, step 1 specifically includes following step with embodiment 14
Suddenly, by corresponding parts by weight be 350 parts portland cement, 450 parts of middle sand, 700 parts of stone, 260 parts of mixed fillers,
70 parts of expanded perlite, 35 parts of gypsum and 40 parts of limestone powder are stirred mixing in agitated kettle, and revolving speed is
800rpm, time 40min form mixture.
Embodiment 17: a kind of retarded concrete, the difference is that, step 1 specifically includes following step with embodiment 14
Suddenly, by corresponding parts by weight be 350 parts portland cement, 450 parts of middle sand, 700 parts of stone, 260 parts of mixed fillers,
70 parts of expanded perlite, 35 parts of gypsum and 50 parts of limestone powder are stirred mixing in agitated kettle, and revolving speed is
800rpm, time 40min form mixture.
Embodiment 18: a kind of retarded concrete, the difference is that, step 2 specifically includes following step with embodiment 14
It suddenly, is that water is added in 6 parts of sodium tripolyphosphate, 6.5 parts of sodium lignin sulfonate and 20 parts of wood fibre by corresponding parts by weight
In, it is stirred mixing with dispersion machine in agitator, dispersing speed 600rpm, time 10min form mixed liquor.
Embodiment 19: a kind of retarded concrete, the difference is that, step 2 specifically includes following step with embodiment 14
It suddenly, is 2 parts of sodium tripolyphosphate, 3 parts of sodium gluconate, 1 part of citric acid, 6.5 parts of lignin by corresponding parts by weight
Sodium sulfonate and 20 parts of wood fibre are added to the water, and are stirred mixing with dispersion machine in agitator, and dispersing speed is
600rpm, time 10min form mixed liquor.
Embodiment 20: a kind of retarded concrete, the difference is that, step 2 specifically includes following step with embodiment 14
Suddenly, it is that 6 parts of prodan, 6.5 parts of sodium sulfite and 20 parts of wood fibre are added to the water by corresponding parts by weight, is stirring
It mixes in bucket and is stirred mixing with dispersion machine, dispersing speed 600rpm, time 10min form mixed liquor.
Embodiment 21: a kind of retarded concrete, the difference is that, step 2 specifically includes following step with embodiment 14
It suddenly, is that water is added in 6 parts of prodan, 2.5 parts of sugar calcium, 4 parts of tannin and 20 parts of wood fibre by corresponding parts by weight
In, it is stirred mixing with dispersion machine in agitator, dispersing speed 600rpm, time 10min form mixed liquor.
Comparative example 1: a kind of retarded concrete, difference from example 1 is that, step 3 specifically includes following step
Suddenly, the waterglass of corresponding parts by weight is added in mixed liquor and is stirred mixing with dispersion machine, dispersing speed 400rpm,
Time is 8min, obtains base-material.
Comparative example 2: a kind of retarded concrete, difference from example 1 is that, step 3 specifically includes following step
Suddenly, the water-soluble polyaniline of corresponding parts by weight is added in mixed liquor and is stirred mixing with dispersion machine, dispersing speed is
400rpm, time 8min, obtains base-material.
Comparative example 3: a kind of retarded concrete, difference from example 1 is that, specifically comprise the following steps:
Step 1 is stirring the portland cement of corresponding parts by weight, middle sand, stone, mixed fillers, expanded perlite and gypsum
It mixes and is stirred mixing in pot, revolving speed 800rpm, time 40min form mixture；
The prodan of corresponding parts by weight and sodium lignin sulfonate are added to the water, dispersion machine are used in agitator by step 2
It is stirred mixing, dispersing speed 600rpm, time 10min form mixed liquor；
Mixture in step 1 is added in mixed liquor, mixing is stirred in mixing plant, revolving speed is by step 3
1000rpm, time 30min, can be obtained retarded concrete.
Test setting time testing experiment sample: using the retarded concrete obtained in embodiment 1-21 as test specimen
1-21, using the retarded concrete obtained in comparative example 1-3 as control sample 1-3.
Test method: test specimen 1-21 and control sample 1-3 is surveyed according to GB/T8076-2008 " concrete admixture "
Determine presetting period and the final setting time of sample, records data.Meanwhile by test specimen 1-21 and control sample 1-3 according to GB/
T50080-2002 " Standard for test methods of properties of ordinary concrete mixture " makes reference block, using TYE-3000 computer full-automatic
Concrete pressure machine, takes the loading velocity of 0.5MPa/s~0.8MPa/s, and measurement standard test block maintenance 7d, 14d and 28d's is anti-
Compressive Strength.
Test result: the test result of test specimen 1-21 and control sample 1-3 are as shown in table 2.As shown in Table 2, by trying
The test result for testing sample 1-10 and control sample 1-3 can obtain, and it is whole that retarded concrete can be improved in waterglass and aqueous polyanion
The retarding effect of body can be obtained by the test result of test specimen 11-13 and test specimen 1-8, and wood fibre can make slow setting mixed
The presetting period and final setting time for coagulating soil all greatly prolong, and can improve shock resistance after slow setting cement solidification, and by testing
The test result of sample 14 and test specimen 11-13 can obtain, and are modified processing to bombax cotton, can make retarded concrete
Retarding effect is improved.It can be obtained by the test result of test specimen 15-16 and test specimen 14, limestone makes retarded concrete
Whole retarding effect greatly improves, and the overall structural strength after solidifying slow setting cement is strengthened.By test specimen 16
It can be obtained with the test result of test specimen 18-21, retarder and water-reducing agent disclosed in this invention are suitable for slow setting cement
It prepares, and make slow setting cement integrally there is good retarding effect.
The test result of table 2 test specimen 1-21 and control sample 1-3
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of retarded concrete, which is characterized in that the component including following parts by weight:
180~200 parts of water；
320~350 parts of portland cement；
450~480 parts of middle sand；
700~780 parts of stone；
230~260 parts of mixed fillers；
6~10 parts of retarder；
4.5~6.5 parts of water-reducing agent；
35~45 parts of gypsum；
20~32 parts of waterglass；
70~90 parts of expanded perlite；
8~12 parts of water-soluble polyaniline.
2. retarded concrete according to claim 1, which is characterized in that be additionally added parts by weight in the retarded concrete
The wood fibre that number is 15~20 parts.
3. retarded concrete according to claim 2, which is characterized in that the wood fibre is modified processing, and changes
Property processing include the following steps:
The wood fibre of corresponding parts by weight is put into sodium hyaluronate solution and is soaked for a period of time by S1, and impregnate during into
Row ultrasonic disperse；
S2 will impregnate the wood fibre finished in sodium hyaluronate solution and take out, and is sprayed with and its weight fraction ratio on its surface
For 1:(2~3) natural petit grain oil；
S3, after absorbing wood fibre by the clear oil of natural perfume, after wood fibre first to be carried out to natural air drying for a period of time, then
Drying a period of time is carried out, and the moisture content of wood fibre is made to be maintained at 25~40%.
4. retarded concrete according to claim 1, which is characterized in that be additionally added parts by weight in the retarded concrete
The limestone powder that number is 30~50 parts.
5. retarded concrete according to claim 1, which is characterized in that the mixed fillers mainly include flyash, mine
Powder and bentonite, and flyash, miberal powder and bentonitic weight fraction ratio are 1:(0.8~1.2): (1.5~2.5).
6. retarded concrete according to claim 1, which is characterized in that the retarder selects prodan, trimerization phosphorus
One of sour sodium, sodium gluconate, citric acid, tartaric acid are a variety of.
7. retarded concrete according to claim 1, which is characterized in that the water-reducing agent selects sodium lignin sulfonate, Asia
One of sodium sulphate, tannin, sugar calcium are a variety of.
8. a kind of preparation process of such as described in any item retarded concretes of claim 1-7, which is characterized in that including following step
It is rapid:
Step 1 is abundant by the portland cement of corresponding parts by weight, middle sand, stone, mixed fillers, expanded perlite and gypsum
Mixing forms mixture；
The retarder of corresponding parts by weight and water-reducing agent are added to the water, are sufficiently mixed by step 2, form mixed liquor；
The waterglass of corresponding parts by weight and water-soluble polyaniline are added in mixed liquor, are sufficiently mixed, obtain base by step 3
Material；
Mixture in step 1 is added in base-material, is sufficiently mixed, retarded concrete can be obtained by step 4.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111333356A (en) * | 2020-03-03 | 2020-06-26 | 深圳市三绿科技有限公司 | Retarder for recycled aggregate mortar and preparation method thereof |
| CN112456827A (en) * | 2020-11-30 | 2021-03-09 | 中国葛洲坝集团水泥有限公司 | Road base retarding cement and preparation method thereof |
| CN112645627A (en) * | 2020-12-18 | 2021-04-13 | 马鞍山市国林建材有限公司 | Preparation method of modified aluminate cement retarder for Z-shaped concrete hollow block production |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101298380A (en) * | 2008-06-25 | 2008-11-05 | 江苏欧兰特新材料股份有限公司 | Mortar for heat insulation system of internal and external walls |
| CN102108027A (en) * | 2011-03-23 | 2011-06-29 | 江苏省一夫新材料科技有限公司 | Cement mortar for constructional engineering |
| CN102145984A (en) * | 2010-02-04 | 2011-08-10 | 赵文成 | Self-curing concrete |
| CN102584070A (en) * | 2012-02-15 | 2012-07-18 | 江苏省一夫新材料科技有限公司 | Concrete expanding agent |
| CN104446310A (en) * | 2014-12-02 | 2015-03-25 | 马鞍山宏泰建材股份有限公司 | Concrete formula and preparation method of concrete pipe pile |
| CN104496333A (en) * | 2014-12-29 | 2015-04-08 | 上海浦东路桥建设股份有限公司 | Flyash-based polymer concrete material and preparation method thereof |
| CN105367007A (en) * | 2015-12-15 | 2016-03-02 | 湖北大学 | Conductive concrete doped with graphite and polyaniline and preparation method of conductive concrete |
| CN106915937A (en) * | 2017-03-15 | 2017-07-04 | 北京城建九秋实混凝土有限公司 | Metallic fiber concrete and its production technology |
| CN108249855A (en) * | 2018-01-25 | 2018-07-06 | 四川通德商品混凝土有限公司 | A kind of water-tight concrete mixture and its construction method |
| CN108558296A (en) * | 2018-05-02 | 2018-09-21 | 芜湖恒固混凝土材料有限公司 | A kind of fiber reinforcement thermal insulation concrete wall |
| CN108892453A (en) * | 2018-08-25 | 2018-11-27 | 北京建工新型建材有限责任公司 | A kind of dry concrete applied to airplane parking area |
| CN108911669A (en) * | 2018-08-02 | 2018-11-30 | 张家港江苏科技大学产业技术研究院 | The method for preparing self-compacting concrete using draft spent pulping liquor |
-
2018
- 2018-12-29 CN CN201811646935.1A patent/CN109553375A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101298380A (en) * | 2008-06-25 | 2008-11-05 | 江苏欧兰特新材料股份有限公司 | Mortar for heat insulation system of internal and external walls |
| CN102145984A (en) * | 2010-02-04 | 2011-08-10 | 赵文成 | Self-curing concrete |
| CN102108027A (en) * | 2011-03-23 | 2011-06-29 | 江苏省一夫新材料科技有限公司 | Cement mortar for constructional engineering |
| CN102584070A (en) * | 2012-02-15 | 2012-07-18 | 江苏省一夫新材料科技有限公司 | Concrete expanding agent |
| CN104446310A (en) * | 2014-12-02 | 2015-03-25 | 马鞍山宏泰建材股份有限公司 | Concrete formula and preparation method of concrete pipe pile |
| CN104496333A (en) * | 2014-12-29 | 2015-04-08 | 上海浦东路桥建设股份有限公司 | Flyash-based polymer concrete material and preparation method thereof |
| CN105367007A (en) * | 2015-12-15 | 2016-03-02 | 湖北大学 | Conductive concrete doped with graphite and polyaniline and preparation method of conductive concrete |
| CN106915937A (en) * | 2017-03-15 | 2017-07-04 | 北京城建九秋实混凝土有限公司 | Metallic fiber concrete and its production technology |
| CN108249855A (en) * | 2018-01-25 | 2018-07-06 | 四川通德商品混凝土有限公司 | A kind of water-tight concrete mixture and its construction method |
| CN108558296A (en) * | 2018-05-02 | 2018-09-21 | 芜湖恒固混凝土材料有限公司 | A kind of fiber reinforcement thermal insulation concrete wall |
| CN108911669A (en) * | 2018-08-02 | 2018-11-30 | 张家港江苏科技大学产业技术研究院 | The method for preparing self-compacting concrete using draft spent pulping liquor |
| CN108892453A (en) * | 2018-08-25 | 2018-11-27 | 北京建工新型建材有限责任公司 | A kind of dry concrete applied to airplane parking area |
Non-Patent Citations (4)
| Title |
|---|
| 夏寿荣: "《最新混凝土外加剂生产配方精选400例》", 31 January 2014, 中国建材工业出版社 * |
| 姚燕: "《水泥与混凝土研究进展》", 31 October 2016, 中国建材工业出版社 * |
| 小本•C•格威克（BENC.GERWICK，JR.）: "《海洋工程设计手册海上施工分册》", 30 April 2013, 上海交通大学出版社 * |
| 汪澜: "《水泥混凝土组成 性能 应用》", 31 January 2005, 中国建材工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111333356A (en) * | 2020-03-03 | 2020-06-26 | 深圳市三绿科技有限公司 | Retarder for recycled aggregate mortar and preparation method thereof |
| CN112456827A (en) * | 2020-11-30 | 2021-03-09 | 中国葛洲坝集团水泥有限公司 | Road base retarding cement and preparation method thereof |
| CN112645627A (en) * | 2020-12-18 | 2021-04-13 | 马鞍山市国林建材有限公司 | Preparation method of modified aluminate cement retarder for Z-shaped concrete hollow block production |
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