CN106977158A - A kind of prefabricated duplex monolith coordination in works and its manufacture craft - Google Patents
A kind of prefabricated duplex monolith coordination in works and its manufacture craft Download PDFInfo
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- CN106977158A CN106977158A CN201710283289.6A CN201710283289A CN106977158A CN 106977158 A CN106977158 A CN 106977158A CN 201710283289 A CN201710283289 A CN 201710283289A CN 106977158 A CN106977158 A CN 106977158A
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- Prior art keywords
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- rubble
- monolith
- coordination
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B28/04—Portland cements
-
- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/002—Water
-
- 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
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a kind of prefabricated duplex monolith coordination in works, using the raw material of following ratio, stir and form by concrete mixer, unit weight is 2300~2500kg/m3；Specifically match ratio is：Cement：350~370kg/m3；Sand：770~790kg/m3；Rubble1：620~650kg/m3；Rubble2：415~435kg/m3；High performance water reducing agent of polyocarboxy acid：8.80~9.20kg/m3；Flyash：60~80kg/m3；Water：160~170kg/m3.Its manufacture craft, the order of the material into agitator tank is followed successively by rubble1, rubble2, cement, flyash, sand, water, finally add high performance water reducing agent of polyocarboxy acid；It is stirred after the completion of addition, mixing time is 90~120 seconds, ultimately forms 28d intensity and be not less than 40MPa, slump is in 140~160mm mixture, and the out-of-machine temperature of mixture is less than 30 DEG C.The present invention can solve the problem that the concrete quality problem such as concrete bubble, cracking or crackle, and the present invention is applied to temperature in 30~40 DEG C of areas.
Description
Technical field
The invention belongs to concrete mix technical field, more particularly to a kind of temperature that is applied to is in 30~40 DEG C of areas
Prefabricated duplex monolith coordination in works and its manufacture craft.
Background technology
With the blue expanding economy in ocean, social progress, durability and environmental requirement more and more higher to concrete.
To meet the protection of off-lying sea breakwater, strengthen the wave damping effect of armour, the application of prefabricated duplex block is more and more extensive.But
There is following common quality defect in traditional prefabricated duplex block:1st, concrete vibrating is not in place, layering is unreasonable has more bubble；
2nd, hydration heat of concrete causes internal-external temperature difference larger, thermal cracking or crackle occurs.
The content of the invention
Present invention technical problem present in solution known technology provides one kind and can solve the problem that concrete bubble, cracking
Or the concrete quality such as crackle be applied to temperature in 30~40 DEG C of regional prefabricated duplex monolith coordination in works and
Its manufacture craft.
The present invention is adopted the technical scheme that to solve technical problem present in known technology：
A kind of prefabricated duplex monolith coordination in works, it is characterised in that：Using the raw material of following ratio, pass through
Concrete mixer, which stirs, to be formed, and unit weight is 2300~2500kg/m3；Specifically match ratio is：Cement：350~370kg/
m3；Sand：770~790kg/m3；Rubble1：620~650kg/m3；Rubble2：415~435kg/m3；High performance water reducing agent of polyocarboxy acid：
8.80~9.20kg/m3；Flyash：60~80kg/m3；Water：160~170kg/m3。
The present invention can also use following technical measures：
P.042.5, its specific surface area is in 300~350 ㎡/kg for the strength grade of the cement.
The sand selects middle sand of the modulus of fineness between 2.4~2.9, and clay content is less than 3%.
The rubble1Grain composition is 10~20mm, rubble2Grain composition is 16~31.5mm, and clay content is respectively less than 1%.
The high performance water reducing agent of polyocarboxy acid, setting time difference is not less than+120min, the 1h slumps≤40mm, water-reducing rate
Not less than 25%, its density is in 1.15~1.20g/cm3, pH value is 5~7.
Described flyash is F class flyash, and fineness is less than 20%, and loss on ignition is less than 8%, and water demand ratio is less than 105%.
The temperature of the water is at 15~20 DEG C, wherein pH value ＞ 5.0, and chloride is with Cl-Count ＜ 200mg/L, sulfate with
SO42-Count ＜ 600mg/L.
The present invention also provides a kind of manufacture craft based on above-mentioned duplex monolith, it is characterised in that：To agitator tank
The order of interior material is followed successively by rubble1, rubble2, cement, flyash, sand, water, finally add high performance water reducing agent of polyocarboxy acid；
It is stirred after the completion of addition, mixing time is 90~120 seconds, ultimately forms 28d intensity and is not less than 40MPa, slump is 140
~160mm mixture, the out-of-machine temperature of mixture is less than 30 DEG C.
The present invention has the advantages and positive effects of：
1st, raw materials of the present invention can gather materials on the spot, and can economize on resources.
2nd, the present invention can be applied to general regional concrete construction, be particularly suitable for use in temperature higher than 30 DEG C (not higher than 40
DEG C) area concrete construction.
3rd, the mixture that the present invention is formed has certain mobility, can use pumping construction, can solve the problem that coagulation
The vertical transport of soil.
4th, the present invention mixes flyash substitution cement,
(1) inside concrete adiabatic temperature rise can be reduced, temperature difference between inside and outside concrete is reduced, prevents the cracking of concrete.
(2) workability of concrete can be increased, the generation of concrete bubble is prevented and treated.
5th, the present invention mixes high performance water reducing agent of polyocarboxy acid,
(1) concrete water-cement ratio can be reduced, water consumption is reduced, engineering cost is saved.
(2) cement consumption can be reduced, inside concrete adiabatic temperature rise is reduced, prevent temperature difference between inside and outside concrete more than 25 DEG C
Concrete is not easy to crack.
(3) the first of concrete, final setting time can be extended, delay the adiabatic temperature rise time of concrete, prevent concrete
Cracking.
6th, the present invention can be such that additive fully reacts by extending concrete mixing time, raising concrete and easy
Property, prevent and treat the generation of concrete bubble.
7th, the present invention can reduce the out-of-machine temperature of concrete mix by using frozen water ready-mixed concrete, it is ensured that mixed
The out-of-machine temperature for coagulating soil is less than 30 DEG C.
8th, it is of the invention, by changing the feeding sequence of concrete, concrete stirring can be made evenly, additive is acted on more
Substantially.
Embodiment
In order to further understand the content, features and effects of the present invention, hereby enumerating following examples：
A kind of prefabricated duplex monolith coordination in works, using the raw material of following ratio, is stirred by concrete
Machine, which stirs, to be formed, and unit weight is 2300~2500kg/m3；Specifically match ratio is：Cement：350~370kg/m3；Sand：770~
790kg/m3；Rubble1：620~650kg/m3；Rubble2：415~435kg/m3；High performance water reducing agent of polyocarboxy acid：8.80~
9.20kg/m3；Flyash：60~80kg/m3；Water：160~170kg/m3。
The present invention can also use following technical measures：
P.042.5, its specific surface area is in 300~350 ㎡/kg for the strength grade of the cement.
The sand selects middle sand of the modulus of fineness between 2.4~2.9, and clay content is less than 3%.
The rubble1Grain composition is 10~20mm, rubble2Grain composition is 16~31.5mm, and clay content is respectively less than 1%.
The high performance water reducing agent of polyocarboxy acid, setting time difference is not less than+120min, the 1h slumps≤40mm, water-reducing rate
Not less than 25%, its density is in 1.15~1.20g/cm3, pH value is 5~7.
Described flyash is F class flyash, and fineness is less than 20%, and loss on ignition is less than 8%, and water demand ratio is less than 105%.
The temperature of the water is at 15~20 DEG C, wherein pH value ＞ 5.0, and chloride is with Cl-Count ＜ 200mg/L, sulfate with
SO42-Count ＜ 600mg/L.
The present invention also provides a kind of manufacture craft based on above-mentioned duplex monolith, it is characterised in that：To agitator tank
The order of interior material is followed successively by rubble1, rubble2, cement, flyash, sand, water, finally add high performance water reducing agent of polyocarboxy acid；
It is stirred after the completion of addition, mixing time is 90~120 seconds, ultimately forms 28d intensity and is not less than 40MPa, slump is 140
~160mm mixture, the out-of-machine temperature of mixture is less than 30 DEG C.
The first match ratio of case history of the present invention：
| Title material | Cement | Sand | Rubble 1 | Rubble 2 | Water reducer | Flyash | Water (18 DEG C) |
| Per side's consumption (kg) | 370 | 790 | 620 | 415 | 9.2 | 60 | 170 |
Second of match ratio of case history：
The third match ratio of case history：
| Title material | Cement | Sand | Rubble 1 | Rubble 2 | Water reducer | Flyash | Water (16 DEG C) |
| Per side's consumption (kg) | 358 | 780 | 647 | 431 | 8.88 | 71 | 163 |
The 4th kind of match ratio of case history：
| Title material | Cement | Sand | Rubble 1 | Rubble 2 | Water reducer | Flyash | Water (15 DEG C) |
| Per side's consumption (kg) | 350 | 770 | 650 | 435 | 8.80. | 80 | 160 |
The advantage of this proportioning：
1st, it can gather materials on the spot, economize on resources.
2nd, solve concrete and the common quality defects such as bubble, temperature cracking or crack occur.
3rd, using high performance water reducing agent of polyocarboxy acid, the ratio of mud is reduced, cement consumption is reduced, engineering cost has been saved
4th, replace cement using flyash, add economic benefit.
5th, using frozen water ready-mixed concrete, the out-of-machine temperature of concrete mix is reduced
6th, with good promotion prospect, non-winter construction region is can be widely used for, temperature is particularly suitable for use in higher than 30 DEG C
(not higher than 40 DEG C) area construction.
It is described above to be only the preferred embodiments of the present invention, any formal limitation not is made to the present invention,
Every technical spirit according to the present invention is belonged to any simple modification made for any of the above embodiments, equivalent variations and modification
In the range of technical solution of the present invention.
Claims (8)
1. a kind of prefabricated duplex monolith coordination in works, it is characterised in that：Using the raw material of following ratio, through overmulling
Solidifying soil mixer, which stirs, to be formed, and unit weight is 2300~2500kg/m3；Specifically match ratio is：Cement：350~370kg/m3；
Sand：770~790kg/m3；Rubble1：620~650kg/m3；Rubble2：415~435kg/m3；High performance water reducing agent of polyocarboxy acid：
8.80~9.20kg/m3；Flyash：60~80kg/m3；Water：160~170kg/m3。
2. prefabricated duplex monolith coordination in works according to claim 1, it is characterised in that：The cement it is strong
Spend grade P.042.5, its specific surface area is in 300~350 ㎡/kg, and stability is qualified.
3. prefabricated duplex monolith coordination in works according to claim 1, it is characterised in that：The sand is from thin
Middle sand of the modulus between 2.4~2.9 is spent, clay content is less than 3%.
4. prefabricated duplex monolith coordination in works according to claim 1, it is characterised in that：The rubble1Particle
It is 10~20mm, rubble that level, which is matched somebody with somebody,2Grain composition is 16~31.5mm, and clay content is respectively less than 1%.
5. prefabricated duplex monolith coordination in works according to claim 1, it is characterised in that：The polycarboxylic acids is high
Performance water reducer, setting time difference is not less than+120min, and the 1h slumps≤40mm, water-reducing rate is not less than 25%, and its density exists
1.15~1.20g/cm3, pH value is 5~7.
6. prefabricated duplex monolith coordination in works according to claim 1, it is characterised in that：Described flyash
For F class flyash, fineness is less than 20%, and loss on ignition is less than 8%, and water demand ratio is less than 105%.
7. prefabricated duplex monolith coordination in works according to claim 1, it is characterised in that：The temperature of the water
At 15~20 DEG C, wherein pH value ＞ 5.0, chloride is with Cl-＜ 200mg/L are counted, sulfate is with SO42-Count ＜ 600mg/L.
8. the manufacture craft based on above-mentioned duplex monolith, it is characterised in that：The order of material into agitator tank is successively
For rubble1, rubble2, cement, flyash, sand, water, finally add high performance water reducing agent of polyocarboxy acid；It is stirred after the completion of addition,
Mixing time is 90~120 seconds, ultimately forms 28d intensity and is not less than 40MPa, slump is mixed in 140~160mm mixture
The out-of-machine temperature of compound is less than 30 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710283289.6A CN106977158A (en) | 2017-04-26 | 2017-04-26 | A kind of prefabricated duplex monolith coordination in works and its manufacture craft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710283289.6A CN106977158A (en) | 2017-04-26 | 2017-04-26 | A kind of prefabricated duplex monolith coordination in works and its manufacture craft |
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| CN106977158A true CN106977158A (en) | 2017-07-25 |
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| CN201710283289.6A Pending CN106977158A (en) | 2017-04-26 | 2017-04-26 | A kind of prefabricated duplex monolith coordination in works and its manufacture craft |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083703A (en) * | 2017-12-28 | 2018-05-29 | 中交天津航道局有限公司 | A kind of mud knot Detritus construction concrete match ratio when preparation method |
| CN108863232A (en) * | 2018-07-27 | 2018-11-23 | 中交天津航道局有限公司 | A kind of winter construction match ratio improving concrete antifreezing performance |
| CN110563414A (en) * | 2019-10-28 | 2019-12-13 | 中国十七冶集团有限公司 | Preparation and construction method of separated concrete for CCW heat-preservation curtain wall |
| WO2022022050A1 (en) * | 2020-07-27 | 2022-02-03 | 中国港湾工程有限责任公司 | Material for wave wall |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083703A (en) * | 2017-12-28 | 2018-05-29 | 中交天津航道局有限公司 | A kind of mud knot Detritus construction concrete match ratio when preparation method |
| CN108863232A (en) * | 2018-07-27 | 2018-11-23 | 中交天津航道局有限公司 | A kind of winter construction match ratio improving concrete antifreezing performance |
| CN110563414A (en) * | 2019-10-28 | 2019-12-13 | 中国十七冶集团有限公司 | Preparation and construction method of separated concrete for CCW heat-preservation curtain wall |
| CN110563414B (en) * | 2019-10-28 | 2022-01-25 | 中国十七冶集团有限公司 | Preparation and construction method of separated concrete for CCW heat-preservation curtain wall |
| WO2022022050A1 (en) * | 2020-07-27 | 2022-02-03 | 中国港湾工程有限责任公司 | Material for wave wall |
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