CN106747098A - A kind of light high strength concrete and its construction method for being adapted to pumping construction - Google Patents
A kind of light high strength concrete and its construction method for being adapted to pumping construction Download PDFInfo
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- CN106747098A CN106747098A CN201611192312.2A CN201611192312A CN106747098A CN 106747098 A CN106747098 A CN 106747098A CN 201611192312 A CN201611192312 A CN 201611192312A CN 106747098 A CN106747098 A CN 106747098A
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- Prior art keywords
- high strength
- haydite
- strength concrete
- light high
- pottery sand
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- 239000011372 high-strength concrete Substances 0.000 title claims abstract description 72
- 238000010276 construction Methods 0.000 title claims abstract description 52
- 238000005086 pumping Methods 0.000 title claims abstract description 50
- 239000004576 sand Substances 0.000 claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 229920003086 cellulose ether Polymers 0.000 claims abstract description 23
- 239000002893 slag Substances 0.000 claims abstract description 12
- 239000011398 Portland cement Substances 0.000 claims abstract description 8
- 238000010521 absorption reaction Methods 0.000 claims abstract description 8
- 239000010881 fly ash Substances 0.000 claims abstract description 8
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 7
- 239000004568 cement Substances 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000013039 cover film Substances 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 238000002203 pretreatment Methods 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 13
- 238000013461 design Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 235000014347 soups Nutrition 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
- C04B20/1048—Polysaccharides, e.g. cellulose, or derivatives thereof
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Architecture (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a kind of light high strength concrete and its construction method for being adapted to pumping construction.Light high strength concrete is made up of the component of following weight：Portland cement 25%~30%；Flyash 4%~7%；Slag 4%~8%；Haydite 19%~23%；Pottery sand 26%~32%；Cellulose ether 0.3%~0.7%；Water reducer 0.2%~0.6%；Water 8%~14%.Above-mentioned haydite and pottery sand are put into high-pressure water tank and are stirred, and the water absorption of haydite and pottery sand is controlled between 5wt% to 6wt%；Then haydite and pottery sand surface uniformly one layer of cellulose ether diaphragm of parcel are made.Due to being filled with moisture under elevated pressure conditions in haydite and pottery sand; and haydite and pottery sand are wrapped up using cellulose ether diaphragm; when light high strength concrete pumping is carried out; moisture in concrete will not be compressed in light-weight aggregate and cause the working performance of concrete to reduce, it is to avoid stifled pump problem occurs.
Description
Technical field
Light high strength concrete the present invention relates to be adapted to pumping construction, the invention further relates to be adapted to pumping construction
The construction method of light high strength concrete.
Background technology
Concrete as traditional building material, in going through for autonomous active more than 100 years used its performance design of the mankind
Shi Zhong, performance there has been very big raising.But with the development of social economy, engineering construction is required increasingly concrete performance
Height, if some problems that concrete presently, there are can not be efficiently solved properly, it may be difficult to undertake its due mission, its use
Way is also difficult to significantly expand.
For steel, the specific strength of its Unit Weight just seems very low to common density concrete, and this obviously can not
The need for meeting following Super High, super-span structure.Solve this problem typically has two approach at present.First method is
Design super high strength concrete.Intensity is doubled, and is equivalent to drop by half of conducting oneself with dignity.Second method is exactly from high-strength light collection
Material, or artificial lightweight aggregate.Light-weight aggregate rough surface is porous, there is certain water absorbing capacity, and this is advantageous to improve the boundary of concrete
Face bonds, and improves bulk strength, and its water absorbing capacity first sucks portion of water but also as moisture memory, supporting afterwards
Discharged again during shield, be conducive to the abundant aquation of cement.
But, the problems with that pump-transporting light aggregate concrete is present:First, due in the case of pumping pressure, concrete
In moisture be compressed in light-weight aggregate and cause the working performance of concrete to reduce, and be susceptible to stifled pump phenomenon.Second, when mixed
Solidifying soil is pumped into the scene of pouring, and compressed air can squeeze the water out again in light-weight aggregate, this by influence gather materials with Behavior of Hardened Cement Paste it
Between interface the Nomenclature Composition and Structure of Complexes.
The content of the invention
The first object of the present invention is to provide a kind of light high strength concrete for being adapted to pumping construction, of the invention second
Purpose is to provide a kind of contracting construction method of the light high strength concrete for being adapted to pumping construction.
The present invention provides a kind of light high strength concrete for being adapted to pumping construction, is made up of the component of following weight：
。
The light high strength concrete for being adapted to pumping construction as described above of the invention, it is preferred that by the group of following weight
Divide and constitute：Portland cement 28%, flyash 6%, slag 5%, haydite 21%, pottery sand 27%, cellulose ether 0.5%, water reducer
0.5%, water 12%.
The light high strength concrete for being adapted to pumping construction as described above of the invention, it is preferred that the haydite and pottery sand
Need to be by following pretreatment:Haydite and pottery sand are put into high-pressure water tank and are stirred, haydite and pottery sand is fully absorbed moisture,
The water absorption of haydite and pottery sand is controlled between 5wt% to 6wt% by controlling mixing time；Haydite after water suction is processed and
Pottery sand is delivered and stirred in cellulose ether solution, makes haydite and pottery sand surface uniformly one layer of cellulose ether diaphragm of parcel, will be located
Haydite and pottery sand after reason carry out treatment of drying in the shade.
The light high strength concrete for being adapted to pumping construction as described above of the invention, it is preferred that the pressure in high-pressure water tank
Power is 1~3 atmospheric pressure；The mixing time of haydite and pottery sand is between 30 seconds~45 seconds；Haydite and pottery after water suction is processed
Sand is delivered in the cellulose ether solution that concentration is 0.01%, is stirred 10 seconds.
The light high strength concrete for being adapted to pumping construction as described above of the invention, it is preferred that the cement is 42.5
Portland cement, 28d glue sand compression strength >=48MPa, consumptive use of water normal consistence≤27% of cement, specific surface area >=
380m2/kg。
The light high strength concrete for being adapted to pumping construction as described above of the invention, it is preferred that flyash is specific surface
Product 800m2/ kg~1500m2/kg。
The light high strength concrete for being adapted to pumping construction as described above of the invention, it is preferred that the slag is slag
Micro mist, grade be S95 and more than, the specific surface area of slag is 380m2/ kg~450m2/kg。
The light high strength concrete for being adapted to pumping construction as described above of the invention, it is preferred that the haydite is particle diameter
The haydite of 5mm~28mm continuous gradings, the exterior appearance of haydite is imitation natural stone granule-morphology, and the bulk density grade of haydite is
750kg/m3~850kg/m3, intensity >=35MPa, water absorption rate≤8%.
The light high strength concrete for being adapted to pumping construction as described above of the invention, it is preferred that the additive is poly-
Carboxylic acid water reducing agent, water-reducing rate is 16%.
A kind of construction method of the light high strength concrete for being adapted to pumping construction, the light high strength concrete is above-mentioned
The light high strength concrete for being adapted to pumping construction described in any one, the construction method is comprised the following steps：
Step 1, pre-processes to haydite and pottery sand；And production is stirred to light high strength concrete according to match ratio；
Step 2, light high strength concrete is transported to job site by trucd mixer, and light high strength concrete is taken before pump is entered
Sample detects pumpability, it is desirable to which the flowing divergence of light high strength concrete is between 550mm~650mm；
Step 3, pumping profit pipe mortar, is sufficiently humidified so as to pumping line；
Step 4, pumping lightweight high-strength concrete, and uninterrupted pumping are constructed；
Step 5, when light high strength concrete is poured into casting position, by the mobility of light high strength concrete itself and close
Reality makes light high strength concrete structure integrally closely knit, and ensures not carry out construction of vibrating in casting process, it is to avoid artificial
Interference；
Step 6, after light high strength concrete pours completion, wiping one's face when strengthening initial set, and press polish is carried out before final set smear
Face；
Step 7, in light high strength concrete surface cover film, water-preserving curing is carried out to it.
The beneficial effects of the invention are as follows：
Due to being filled with moisture in haydite and pottery sand under elevated pressure conditions, and using cellulose ether diaphragm to haydite and
Pottery sand is wrapped up, and when light high strength concrete pumping is carried out, the moisture in concrete will not be compressed in light-weight aggregate
And cause the working performance of concrete to reduce, avoid the stifled pump problem of generation；Also solve simultaneously and poured now when concrete pump is sent to
, compressed air can be squeezed the water out again in light-weight aggregate, and influence is gathered materials（Haydite and pottery sand）The interface group between Behavior of Hardened Cement Paste
Into the problem with structure.
Specific embodiment
The embodiment recorded herein is specific specific embodiment of the invention, for illustrating design of the invention,
It is explanatory and exemplary, should not be construed as the limitation to embodiment of the present invention and the scope of the invention.Except what is recorded herein
Implement exception, those skilled in the art can also be based on the application claims and specification disclosure of that using aobvious
Other technical schemes being clear to, these technical schemes include any obvious using making for the embodiment to recording herein
The technical scheme of substitutions and modifications.
Embodiment 1
The raw material weight proportioning of soup processed that the present embodiment is adapted to the light high strength concrete of pumping construction is as follows：
Portland cement：28%；
Flyash：6%；
Slag：5%；
Haydite：21%, granularity is more than 5mm；
Pottery sand：27%, granularity is less than 5mm；
Cellulose ether：0.5%；
Water reducer：0.5%；
Water：12%.
The construction method for being adapted to the light high strength concrete of pumping construction is comprised the following steps：
Step 1, pre-processes to haydite and pottery sand；Haydite and pottery sand are put into high-pressure water tank and are stirred, make haydite and
Pottery sand fully absorbs moisture, is controlled between 5wt% to 6wt% the water absorption of haydite and pottery sand by controlling mixing time；Will
Haydite and pottery sand after water suction treatment are delivered and stirred in cellulose ether solution, make haydite and pottery sand surface uniformly one layer of fibre of parcel
The plain ether diaphragm of dimension, treatment of drying in the shade is carried out by the haydite and pottery sand after treatment.Pressure in high-pressure water tank is 2 atmospheric pressure；Pottery
The mixing time of grain and pottery sand was at 40 seconds；Haydite and pottery sand after water suction is processed are delivered to the cellulose ether that concentration is 0.01%
In solution, stir 10 seconds.Then production is stirred to light high strength concrete according to match ratio；
Step 2, light high strength concrete is transported to job site by trucd mixer, and light high strength concrete is taken before pump is entered
Sample detects pumpability, it is desirable to which the flowing divergence of light high strength concrete is between 550mm~650mm；
Step 3, pumping profit pipe mortar, is sufficiently humidified so as to pumping line；
Step 4, pumping lightweight high-strength concrete, and uninterrupted pumping are constructed；
Step 5, when light high strength concrete is poured into casting position, by the mobility of light high strength concrete itself and close
Reality makes light high strength concrete structure integrally closely knit, and ensures not carry out construction of vibrating in casting process, it is to avoid artificial
Interference；
Step 6, after light high strength concrete pours completion, wiping one's face when strengthening initial set, and press polish is carried out before final set smear
Face；
Step 7, in light high strength concrete surface cover film, water-preserving curing is carried out to it.
Embodiment 2
The raw material weight proportioning of soup processed that the present embodiment is adapted to the light high strength concrete of pumping construction is as follows：
Portland cement：29%；
Flyash：5%；
Slag：5%；
Haydite：21%；
Pottery sand：25%；
Cellulose ether：0.6%；
Water reducer：0.4%；
Water：14%.
The construction method for being adapted to the light high strength concrete of pumping construction is comprised the following steps：Haydite and pottery sand are carried out
Pretreatment；Haydite and pottery sand are put into high-pressure water tank and are stirred, haydite and pottery sand is fully absorbed moisture, stirred by control
Mixing the time controls between 5wt% to 6wt% the water absorption of haydite and pottery sand；Haydite and pottery sand after water suction is processed are delivered and arrived
Stirred in cellulose ether solution, make haydite and pottery sand surface uniformly one layer of cellulose ether diaphragm of parcel, by the haydite after treatment
Treatment of drying in the shade is carried out with pottery sand.Pressure in high-pressure water tank is 1.5 atmospheric pressure；The mixing time of haydite and pottery sand was at 30 seconds；
Haydite and pottery sand after water suction is processed are delivered in the cellulose ether solution that concentration is 0.01%, are stirred 10 seconds.Then according to matching somebody with somebody
Composition and division in a proportion is stirred production to light high strength concrete；Remaining step is same as Example 1.
Embodiment 3
The raw material weight proportioning of soup processed that the present embodiment is adapted to the light high strength concrete of pumping construction is as follows：
Portland cement：30%；
Flyash：5%；
Slag：4%；
Haydite：22%；
Pottery sand：28%；
Cellulose ether：0.4%；
Water reducer：0.6%；
Water：10%.
The construction method for being adapted to the light high strength concrete of pumping construction is comprised the following steps：Haydite and pottery sand are carried out
Pretreatment；Haydite and pottery sand are put into high-pressure water tank and are stirred, haydite and pottery sand is fully absorbed moisture, stirred by control
Mixing the time controls between 5wt% to 6wt% the water absorption of haydite and pottery sand；Haydite and pottery sand after water suction is processed are delivered and arrived
Stirred in cellulose ether solution, make haydite and pottery sand surface uniformly one layer of cellulose ether diaphragm of parcel, by the haydite after treatment
Treatment of drying in the shade is carried out with pottery sand.Pressure in high-pressure water tank is 2.5 atmospheric pressure；The mixing time of haydite and pottery sand was at 45 seconds；
Haydite and pottery sand after water suction is processed are delivered in the cellulose ether solution that concentration is 0.01%, are stirred 10 seconds.Then according to matching somebody with somebody
Composition and division in a proportion is stirred production to light high strength concrete；Remaining step is same as Example 1.
Each technical characteristic of above-mentioned disclosure is not limited to disclosed and further feature combination, and those skilled in the art are also
Other combinations between each technical characteristic can be carried out according to the purpose of invention, is defined by the purpose for realizing the present invention.
Claims (10)
1. a kind of light high strength concrete for being adapted to pumping construction, is made up of the component of following weight：
。
2. the light high strength concrete for being adapted to pumping construction according to claim 1, it is characterised in that by following weight
Component constitute：Portland cement 28%, flyash 6%, slag 5%, haydite 21%, pottery sand 27%, cellulose ether 0.5% subtracts
Aqua 0.5%, water 12%.
3. the light high strength concrete and its construction method for being adapted to pumping construction according to claim 1 and 2, its feature
It is that the haydite and pottery sand need to be by following pretreatments:Haydite and pottery sand are put into high-pressure water tank and are stirred, make haydite
Moisture is fully absorbed with pottery sand, the water absorption of haydite and pottery sand is controlled between 5wt% to 6wt% by controlling mixing time；
Haydite and pottery sand after water suction is processed are delivered and stirred in cellulose ether solution, make haydite and pottery sand surface uniformly one layer of parcel
Cellulose ether diaphragm, treatment of drying in the shade is carried out by the haydite and pottery sand after treatment.
4. the light high strength concrete for being adapted to pumping construction according to claim 3, it is characterised in that in high-pressure water tank
Pressure be 1~3 atmospheric pressure；The mixing time of haydite and pottery sand is between 30 seconds~45 seconds；Haydite after water suction is processed
Delivered in the cellulose ether solution that concentration is 0.01% with pottery sand, stirred 10 seconds.
5. the light high strength concrete for being adapted to pumping construction according to claim 3, it is characterised in that the cement is
42.5 Portland cements, 28d glue sand compression strength >=48MPa, consumptive use of water normal consistence≤27% of cement, specific surface area
≥380m2/kg。
6. the light high strength concrete for being adapted to pumping construction according to claim 3, it is characterised in that flyash is ratio
Surface area 800m2/ kg~1500m2/kg。
7. the light high strength concrete for being adapted to pumping construction according to claim 3, it is characterised in that the slag is
Slag micropowder, grade be S95 and more than, the specific surface area of slag is 380m2/ kg~450m2/kg。
8. the light high strength concrete for being adapted to pumping construction according to claim 3, it is characterised in that the haydite is
The haydite of particle diameter 5mm~28mm continuous gradings, the exterior appearance of haydite is imitation natural stone granule-morphology, bulk density of haydite etc.
Level is 750kg/m3~850kg/m3, intensity >=35MPa, water absorption rate≤8%.
9. the light high strength concrete for being adapted to pumping construction according to claim 3, it is characterised in that the additive
It is poly carboxylic acid series water reducer, water-reducing rate is 16%.
10. a kind of construction method of the light high strength concrete for being adapted to pumping construction, it is characterised in that the high-strength light is mixed
Solidifying soil is the light high strength concrete for being adapted to pumping construction described in claim any one of 1-9, and the construction method includes
Following steps：
Step 1, pre-processes to haydite and pottery sand；And production is stirred to light high strength concrete according to match ratio；
Step 2, light high strength concrete is transported to job site by trucd mixer, and light high strength concrete is taken before pump is entered
Sample detects pumpability, it is desirable to which the flowing divergence of light high strength concrete is between 550mm~650mm；
Step 3, pumping profit pipe mortar, is sufficiently humidified so as to pumping line；
Step 4, pumping lightweight high-strength concrete, and uninterrupted pumping are constructed；
Step 5, when light high strength concrete is poured into casting position, by the mobility of light high strength concrete itself and close
Reality makes light high strength concrete structure integrally closely knit, and ensures not carry out construction of vibrating in casting process, it is to avoid artificial
Interference；
Step 6, after light high strength concrete pours completion, wiping one's face when strengthening initial set, and press polish is carried out before final set smear
Face；
Step 7, in light high strength concrete surface cover film, water-preserving curing is carried out to it.
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|---|---|---|---|
| CN201611192312.2A CN106747098B (en) | 2016-12-21 | 2016-12-21 | Light high-strength concrete suitable for pumping construction and construction method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108264299A (en) * | 2018-04-04 | 2018-07-10 | 重庆建工建材物流有限公司 | A kind of pump structure haydite concrete of high stability and preparation method thereof |
| CN109320148A (en) * | 2018-11-22 | 2019-02-12 | 浙江方远新材料股份有限公司 | A kind of high-strength heat preservation type structure ceramisite concrete |
| CN111205036A (en) * | 2020-01-18 | 2020-05-29 | 杭州申华混凝土有限公司 | High-strength lightweight concrete and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108264299A (en) * | 2018-04-04 | 2018-07-10 | 重庆建工建材物流有限公司 | A kind of pump structure haydite concrete of high stability and preparation method thereof |
| CN108264299B (en) * | 2018-04-04 | 2020-12-08 | 重庆建工建材物流有限公司 | High-stability pumping structure ceramsite concrete and preparation method thereof |
| CN109320148A (en) * | 2018-11-22 | 2019-02-12 | 浙江方远新材料股份有限公司 | A kind of high-strength heat preservation type structure ceramisite concrete |
| CN111205036A (en) * | 2020-01-18 | 2020-05-29 | 杭州申华混凝土有限公司 | High-strength lightweight concrete and preparation method thereof |
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| CN106747098B (en) | 2020-03-13 |
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Effective date of registration: 20200214 Address after: 276002 No. 63 sparrow Hill Road, Lanshan District, Shandong, Linyi Applicant after: TIANYUAN CONSTRUCTION GROUP Co.,Ltd. Applicant after: LINYI TIANFANG CONSTRUCTION RESEARCH TESTING CO.,LTD. Applicant after: SHANDONG HONGDA REAL ESTATE Co.,Ltd. Address before: 276002 No. 63 sparrow Hill Road, Lanshan District, Shandong, Linyi Applicant before: TIANYUAN CONSTRUCTION GROUP Co.,Ltd. Applicant before: LINYI TIANFANG CONSTRUCTION RESEARCH TESTING CO.,LTD. |
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Denomination of invention: The invention relates to a light high-strength concrete suitable for pumping construction and a construction method thereof Effective date of registration: 20220119 Granted publication date: 20200313 Pledgee: China Construction Bank Corporation Linyi Shizhong sub branch Pledgor: TIANYUAN CONSTRUCTION GROUP Co.,Ltd. Registration number: Y2022980000732 |
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Address after: No.63, Yinqueshan Road, Lanshan District, Linyi City, Shandong Province Patentee after: TIANYUAN CONSTRUCTION GROUP Co.,Ltd. Country or region after: China Patentee after: LINYI TIANFANG CONSTRUCTION RESEARCH TESTING CO.,LTD. Patentee after: Veterans (Shandong) Construction Group Co.,Ltd. Address before: No.63, Yinqueshan Road, Lanshan District, Linyi City, Shandong Province Patentee before: TIANYUAN CONSTRUCTION GROUP Co.,Ltd. Country or region before: China Patentee before: LINYI TIANFANG CONSTRUCTION RESEARCH TESTING CO.,LTD. Patentee before: SHANDONG HONGDA REAL ESTATE Co.,Ltd. |