CN101265058A - Injection concrete - Google Patents
Injection concrete Download PDFInfo
- Publication number
- CN101265058A CN101265058A CNA2008100442406A CN200810044240A CN101265058A CN 101265058 A CN101265058 A CN 101265058A CN A2008100442406 A CNA2008100442406 A CN A2008100442406A CN 200810044240 A CN200810044240 A CN 200810044240A CN 101265058 A CN101265058 A CN 101265058A
- Authority
- CN
- China
- Prior art keywords
- concrete
- cement
- weight
- water
- sprayed concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 42
- 238000002347 injection Methods 0.000 title description 13
- 239000007924 injection Substances 0.000 title description 13
- 239000004568 cement Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000126 substance Substances 0.000 claims abstract description 17
- 239000011378 shotcrete Substances 0.000 claims abstract description 16
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 7
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010457 zeolite Substances 0.000 claims abstract description 7
- 230000007935 neutral effect Effects 0.000 claims abstract description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 4
- 239000007921 spray Substances 0.000 abstract description 19
- 238000010276 construction Methods 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 239000004575 stone Substances 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 2
- 239000000654 additive Substances 0.000 abstract 3
- 230000000996 additive effect Effects 0.000 abstract 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000002105 nanoparticle Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000005507 spraying Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 231100000241 scar Toxicity 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002352 surface water Substances 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
-
- 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
- C04B2111/00275—Materials impermeable to vapours or gases
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a sprayed concrete which contains cement, sand-stone mixture, steel fiber, accelerating agent and special additive. The special additive is inorganic neutral nano-sized zeolite containing SiO2 and Al2O3 as major chemical components, wherein the weight ratio of water to cement to sand-stone mixture to steel fiber is (8.5-8.6):(16.1-20.0):(69.6-73.5):(1.7-1.8), the special additive accounts for 5-10% the weight of cement, and the accelerating agent accounts for 6-8% the weight of cement. When used in water-rich areas, the sprayed concrete can cure within 1minute and exhibits strength after 10 minutes, the rebound rate of the sprayed concrete is reduced to 7.8% from 15% in the common wet-jetting concrete, the binding strength reaches 3.5 MPa, and the spray thickness is more than 0.3 m at each time. The invention reduces the workload of lining concrete construction and avoids water leakage, and also has the advantages of rapid construction, good flexibility and improvement in working environment inside tunnel.
Description
Technical field
The present invention relates to a kind of sprayed concrete, especially rich pool, tunnel sprayed concrete.
Background technology
In the tunnel excavation process, for safety is set out, spraying concrete also must closely follow, yet common injection concrete sprays at all and can't realize in rich pool, its resilience reaches 95%, so-called " rich pool " refers generally to the cave of debouchure section in the hole, tunnel of " line, drip shape " following condition of water, and the quantities of this class construction hole section is big especially, takes directly to be provided with water board after tunnel (hole) excavates usually and solves in conjunction with the secondary lining concrete; In case appearring in structure, infiltration will further take to handle such as modes such as carving V-type groove pipe laying between plugging agent, construction joint.Both can't guarantee the duration if take to spray ordinary concrete again after the first grouting treatment, but also increase input, continuous progress along with concrete-spraying technology, particularly in the proportioning design of spray concrete, add extra material and spray mechanical chassis with the introduction import, wet spraying process is developed apace, all kinds of addition materials that change the quality that sprays concrete are more and more, as mix steel fiber, primitive fiber, silica flour, water reducer etc., solve spray and protected many engineering difficult problems of concrete supporting, but still also do not found the proportion design of the injection concrete that is fit to rich pool.
Summary of the invention
The objective of the invention is: provide a kind of and have safely and fast spray and protect the sprayed concrete of effect.
The objective of the invention is to realize by the enforcement following technical proposals:
A kind of sprayed concrete comprises cement, sandstone compound, steel fiber, it is characterized in that, described concrete also comprises accelerating chemicals, extraordinary admixture, and described extraordinary admixture is that main chemical is SiO
2And Al
2O
3Inorganic neutral nano level zeolite, water wherein: cement: sandstone compound: the steel fiber mixing ratio by weight is 8.5～8.6: 16.1～20.0: 69.6～73.5: 1.7～1.8, extraordinary admixture is 5～10% of a cement weight, and accelerating chemicals is 6～8% of a cement weight.
Described concrete also comprises silicon ash, water reducer, and described silicon ash is the 0-5% of cement weight, and water reducer is the 0-0.8% of cement weight.
The particle diameter of described zeolite is 327.7 * 10
-9M.
The extraordinary admixture of the nano level that uses in the injection concrete proportioning of the present invention is to adopt main chemical to be SiO
2And Al
2O
3Inorganic neutral zeolite be nano level admixture through superfine pulverizing to particle diameter, this admixture particle in the process that mechanical mill is pulverized changes into energy and surface energy in the particulate with strike plate and intergranular collision energy major part, cause the long-pending and specific surface energy increase of specific grain surface, its mechanical property generation considerable change significantly improves performance index such as its intensity, hardness, resistance to deterioration, weather resistance.In cement, mix the nano level admixture, can accelerate the hydration reaction of cement inductive phase and acceleration period, make the air-liquid-solid three-phase reach corresponding concentration gradient, improved the three-dimensional structure that thes cement solidifies by saturation ratio; Improve the tap density of cement concrete simultaneously, not only subtract surface water but also subtract interstitial water, make micelle produce the effect of polymerization repolymerization.Have good cementing properties, high water reducing rate, high permeability resistant, coagulate performance such as property soon, it is incorporated in the normal concrete, reach early strong, low resilient rate, jetting thickness of raising, reduce the purpose of dust and antiseepage.Concrete every performance index all are greatly improved, for the supporting in rich pool provides the necessary technology guarantee.The extraordinary admixture dosage of nanometer accounts for 5～10% of cement content, especially 10% o'clock best results; When the extraordinary admixture of nanometer mixes 5%, can take to add 5% silicon ash, add 0.8% high efficiency water reducing agent and improve its over-all properties.
Accelerating chemicals content has considerable influence to each sprayed concrete proportioning intensity, and common injection concrete accelerating chemicals departs from the scope of the optimum mix amount, not only sprays the concrete final setting time and prolongs, and to spraying the concrete final strength disadvantageous effect is arranged also simultaneously.Along with the accelerating chemicals volume increases to after 6%, the extraordinary admixture of nanometer there is blood coagulation enhancing effect, the spray concrete can final set in 2 minutes, for guaranteeing to spray the concrete success, the accelerating chemicals volume also rises to 8%, rich in principle pool accelerating chemicals volume sprays concrete and reaches more than 10 minutes time of coagulation after mixing the extraordinary admixture of nanometer during less than 6% volume, be essentially common injection concrete effect.Be that the accelerating chemicals volume reaches 6～8% best results.
Adopt the concrete of this prescription, it has following beneficial effect:
1. reduce the dust content in the sprayed concrete process, rebound degree drops to 7.8% by 15% of common wet shot concrete.
2. cohesive strength improves greatly, can reach 3.5MPa; One time jet thickness can reach more than the 0.5m.
3. can normal injection at general infiltration scar, significantly reduce the scar percolating water phenomenon.
4. can reduce lining cutting concrete work operations amount with the spray concrete as permanent structure.
5. spraying concrete can final set in 1 minute, after 10 minutes intensity is arranged, and it has construction fast, flexibly, can improve in the hole advantages such as operating environmental condition effectively.
Embodiment
The invention will be further elaborated below in conjunction with embodiment:
Rich pool of the present invention sprayed concrete comprises cement, sandstone compound, steel fiber, accelerating chemicals, extraordinary admixture, and extraordinary admixture is that main chemical is SiO
2And AL
2O
3Inorganic neutral nano level zeolite, the particle diameter of Buddhist stone is 327.7 * 10
-9M can also comprise silicon ash, water reducer.
More than Pei Fang concrete proportioning sees the following form:
Spray concrete proportioning water cement ratio scope and between 0.43～0.53, (do not comprise adulterant ratio), add that adulterant water cement ratio scope is between 0.39～0.48.
Above proportioning after testing, 1) unit weight 〉=23KN/m of unit
32) ultimate compression strength 〉=38MPa; 3) folding strength 〉=5.8MPa; 4) tensile strength 〉=2.8MPa; 6) Young's modulus 〉=3.0 * 10
4MPa; 7) impervious grade 〉=W18; 8) with country rock cohesive strength 〉=2.5MPa;
The A2 that will fill a prescription uses at the scene, and the slump is 18.5cm, and 7 days ultimate compression strength is 33.1MPa, 28 days ultimate compression strength 41.2MPa.Arch rebound degree 9.4%, abutment wall rebound degree 6.2%, comprehensive rebound degree 7.8%, 1min can bear the iron hammer hammering behind the 10min of spray back and spray concrete time of coagulation, and a jet thickness is 25cm, is 3.53MP to the maximum with the country rock cohesive strength
aMinimum is 2.36MP
a, average out to 3.13MP
a
Adopting the concrete slump of A5 proportioning is 15cm, and 7 days ultimate compression strength is 29.1MPa, 28 days ultimate compression strength 37.6MPa.Arch rebound degree 10.8%, abutment wall rebound degree 7.6%, comprehensive rebound degree 9.2%, time of coagulation 4min, a jet thickness is greater than 32cm.
More than the injection concrete material that adopts in the test is selected P.042.5R cement of Ningyuan, self-produced sandstone combined aggregate, the leap 2000 concrete accelerating chemicalss (liquid) that Gongyi City grand super building materials company limited produces, the extraordinary admixture of HD-2 type nanometer that Chengdu waterproof roll factory of double fluid HTC produces, the rich ancient sacrificial bronze ware in Chongqing belongs to the concrete shield cut-off type steel fiber that fiber company limited produces, and the JG-2 high efficiency water reducing agent of admixture production, the silicon ash that east, Chengdu blue star is produced are built in Beijing smelting.
The concrete using method of sprayed concrete of the present invention is as follows:
1) sprays the auxiliary treatment that scar carries out drainage measure in rich pool, apply water vent and pre-buried blind pipe.
2) with cement, sandstone compound, steel fiber, the extraordinary admixture of the above proportioning, drop into compulsory mixer, the sprayed concrete grog is mixed and stirred in vibrations, observes, writes down the test whipping process and use the concrete tank car to be transported to working face, and put into the hopper of MEYCO mechanical injection chassis.
3) be ejected on the crag through the mechanical injection chassis with wet spraying process, accelerating chemicals is sneaked at the nozzle place of spraying chassis, and the mixture that sprays concrete will reach final set between tens of seconds and several minutes.Course of injection adopts the injection order of ", by outside to inside " to carry out from bottom to top.
4) carry out data gathering, calculating, analysis.
Adopt the injection concrete of above-mentioned A2 proportioning once spray the thick 30cm of reaching and more than, maximum can reach 50cm.Its final setting time is the shortest can be finished at 1min, and cohesive force is more than 7～8 times of ordinary concrete, plays the effect of secondary lining, both can satisfy the immediate support needs of construction safety, can guarantee jet quality again simultaneously.The purpose of low resilient rate, jetting thickness of raising, reduction dust and antiseepage early by force.
Claims (3)
1, a kind of sprayed concrete comprises cement, sandstone compound, steel fiber, it is characterized in that, described concrete also comprises accelerating chemicals, extraordinary admixture, and described extraordinary admixture is that main chemical is SiO
2And Al
2O
3Inorganic neutral nano level zeolite, water wherein: cement: sandstone compound: the steel fiber mixing ratio by weight is 8.5～8.6: 16.1～20.0: 69.6～73.5: 1.7～1.8, extraordinary admixture is 5～10% of a cement weight, and accelerating chemicals is 6～8% of a cement weight.
2, sprayed concrete as claimed in claim 1 is characterized in that, also comprises silicon ash, water reducer, and described silicon ash is the 0-5% of cement weight, and water reducer is the 0-0.8% of cement weight.
3, sprayed concrete as claimed in claim 1 is characterized in that, the particle diameter of zeolite is 327.7 * 10
-9M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100442406A CN101265058A (en) | 2008-04-17 | 2008-04-17 | Injection concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100442406A CN101265058A (en) | 2008-04-17 | 2008-04-17 | Injection concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101265058A true CN101265058A (en) | 2008-09-17 |
Family
ID=39987782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100442406A Pending CN101265058A (en) | 2008-04-17 | 2008-04-17 | Injection concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101265058A (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701651A (en) * | 2012-06-05 | 2012-10-03 | 南京倍立达实业有限公司 | Close packing high-performance cement-based fiber composite product and production method thereof |
| CN102797051A (en) * | 2012-07-18 | 2012-11-28 | 林英男 | Production method of polypropylene crude fiber and application method of combination polypropylene crude fiber and organic nano materials in sprayed concrete |
| CN102826774A (en) * | 2012-09-17 | 2012-12-19 | 水利部交通运输部国家能源局南京水利科学研究院 | Nanoscale sprayed concrete modified-admixture |
| CN102976692A (en) * | 2012-12-04 | 2013-03-20 | 武汉大学 | Ore-powder-doped high-performance shotcrete applicable to underground watertight oil cellars and preparation method thereof |
| CN103086672A (en) * | 2013-02-18 | 2013-05-08 | 中国水利水电第七工程局有限公司 | Wet spraying concrete and production method thereof |
| CN103359982A (en) * | 2012-03-26 | 2013-10-23 | 中国矿业大学(北京) | Sprayed concrete material prepared by using iron tailings |
| CN104655515A (en) * | 2015-02-13 | 2015-05-27 | 长安大学 | Method for measuring wet spraying resilient rate of primary lining concrete in tunnel construction |
| CN105503102A (en) * | 2015-12-22 | 2016-04-20 | 嘉华特种水泥股份有限公司 | Early-strength sprayed concrete |
| CN106116276A (en) * | 2016-06-16 | 2016-11-16 | 重庆大学 | A kind of gunite concrete that can observe tunnel surrounding rock displacement |
| CN108395159A (en) * | 2018-03-02 | 2018-08-14 | 同济大学 | A kind of gunite concrete prepared using high hydroscopic resin and expanded vermiculite |
| CN108793935A (en) * | 2018-08-25 | 2018-11-13 | 北京建工新型建材有限责任公司 | Prefabricated siccative gunite concrete |
| CN109553256A (en) * | 2018-12-17 | 2019-04-02 | 湖州职业技术学院 | A kind of method of rapid curing mud |
| CN110128079A (en) * | 2019-06-13 | 2019-08-16 | 盾构及掘进技术国家重点实验室 | A kind of weak broken stratum morning Qiang Kuaizhi gunite concrete and preparation method thereof |
| CN112252299A (en) * | 2020-10-24 | 2021-01-22 | 惠州大亚湾市政基础设施有限公司 | Soft soil foundation municipal road treatment method |
| CN115417639A (en) * | 2022-08-30 | 2022-12-02 | 中国建筑土木建设有限公司 | Tunnel Shotcrete and Tunnel Concrete Shotcrete Construction Method |
| CN115677295A (en) * | 2022-11-09 | 2023-02-03 | 中铁第四勘察设计院集团有限公司 | Sprayed concrete for submarine tunnel and preparation method and application thereof |
| CN116375380A (en) * | 2022-11-24 | 2023-07-04 | 中建西部建设建材科学研究院有限公司 | Alkali-free liquid quick-setting agent and its preparation method and application |
| CN118084437A (en) * | 2024-04-28 | 2024-05-28 | 石家庄铁道大学 | Shotcrete and its preparation method and application |
| CN118307228A (en) * | 2024-06-11 | 2024-07-09 | 石家庄市长安育才建材有限公司 | Rebound inhibitor for high-impermeability sprayed concrete and preparation method and application thereof |
-
2008
- 2008-04-17 CN CNA2008100442406A patent/CN101265058A/en active Pending
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359982A (en) * | 2012-03-26 | 2013-10-23 | 中国矿业大学(北京) | Sprayed concrete material prepared by using iron tailings |
| CN103359982B (en) * | 2012-03-26 | 2015-07-01 | 中国矿业大学(北京) | Sprayed concrete material prepared by using iron tailings |
| CN102701651A (en) * | 2012-06-05 | 2012-10-03 | 南京倍立达实业有限公司 | Close packing high-performance cement-based fiber composite product and production method thereof |
| CN102797051A (en) * | 2012-07-18 | 2012-11-28 | 林英男 | Production method of polypropylene crude fiber and application method of combination polypropylene crude fiber and organic nano materials in sprayed concrete |
| CN102826774A (en) * | 2012-09-17 | 2012-12-19 | 水利部交通运输部国家能源局南京水利科学研究院 | Nanoscale sprayed concrete modified-admixture |
| CN102826774B (en) * | 2012-09-17 | 2014-10-22 | 水利部交通运输部国家能源局南京水利科学研究院 | Nanoscale sprayed concrete modified-admixture |
| CN102976692A (en) * | 2012-12-04 | 2013-03-20 | 武汉大学 | Ore-powder-doped high-performance shotcrete applicable to underground watertight oil cellars and preparation method thereof |
| CN103086672A (en) * | 2013-02-18 | 2013-05-08 | 中国水利水电第七工程局有限公司 | Wet spraying concrete and production method thereof |
| CN103086672B (en) * | 2013-02-18 | 2015-10-21 | 中国水利水电第七工程局有限公司 | A kind of wet shotcreting and production method thereof |
| CN104655515A (en) * | 2015-02-13 | 2015-05-27 | 长安大学 | Method for measuring wet spraying resilient rate of primary lining concrete in tunnel construction |
| CN105503102A (en) * | 2015-12-22 | 2016-04-20 | 嘉华特种水泥股份有限公司 | Early-strength sprayed concrete |
| CN106116276A (en) * | 2016-06-16 | 2016-11-16 | 重庆大学 | A kind of gunite concrete that can observe tunnel surrounding rock displacement |
| CN108395159A (en) * | 2018-03-02 | 2018-08-14 | 同济大学 | A kind of gunite concrete prepared using high hydroscopic resin and expanded vermiculite |
| CN108793935A (en) * | 2018-08-25 | 2018-11-13 | 北京建工新型建材有限责任公司 | Prefabricated siccative gunite concrete |
| CN108793935B (en) * | 2018-08-25 | 2020-12-11 | 北京建工新型建材有限责任公司 | Precast dry material sprayed concrete |
| CN109553256A (en) * | 2018-12-17 | 2019-04-02 | 湖州职业技术学院 | A kind of method of rapid curing mud |
| CN110128079A (en) * | 2019-06-13 | 2019-08-16 | 盾构及掘进技术国家重点实验室 | A kind of weak broken stratum morning Qiang Kuaizhi gunite concrete and preparation method thereof |
| CN112252299A (en) * | 2020-10-24 | 2021-01-22 | 惠州大亚湾市政基础设施有限公司 | Soft soil foundation municipal road treatment method |
| CN115417639A (en) * | 2022-08-30 | 2022-12-02 | 中国建筑土木建设有限公司 | Tunnel Shotcrete and Tunnel Concrete Shotcrete Construction Method |
| CN115677295A (en) * | 2022-11-09 | 2023-02-03 | 中铁第四勘察设计院集团有限公司 | Sprayed concrete for submarine tunnel and preparation method and application thereof |
| CN115677295B (en) * | 2022-11-09 | 2023-10-31 | 中铁第四勘察设计院集团有限公司 | Shotcrete for submarine tunnel and preparation method and application thereof |
| CN116375380A (en) * | 2022-11-24 | 2023-07-04 | 中建西部建设建材科学研究院有限公司 | Alkali-free liquid quick-setting agent and its preparation method and application |
| CN118084437A (en) * | 2024-04-28 | 2024-05-28 | 石家庄铁道大学 | Shotcrete and its preparation method and application |
| CN118084437B (en) * | 2024-04-28 | 2024-06-18 | 石家庄铁道大学 | Sprayed concrete and preparation method and application thereof |
| CN118307228A (en) * | 2024-06-11 | 2024-07-09 | 石家庄市长安育才建材有限公司 | Rebound inhibitor for high-impermeability sprayed concrete and preparation method and application thereof |
| CN118307228B (en) * | 2024-06-11 | 2024-08-06 | 石家庄市长安育才建材有限公司 | Rebound inhibitor for high-impermeability sprayed concrete and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101265058A (en) | Injection concrete | |
| CN104402339B (en) | The constructional method of pervious concrete | |
| CN101215141B (en) | Soft soil curing agent | |
| CN114671644B (en) | High-early-strength low-resilience high-performance sprayed concrete and preparation method thereof | |
| CN102826774B (en) | Nanoscale sprayed concrete modified-admixture | |
| CN104609814B (en) | Anti-aqueous dispersion synchronous grouting material with large specific gravity and low consistence | |
| CN102757206A (en) | Mine fracture grouting material and usage method thereof | |
| KR100775360B1 (en) | Dry ocher soil packaging material and its construction method | |
| CN107698226A (en) | A kind of cement-silicate injecting paste material | |
| CN105272084A (en) | Inorganic-organic composite grouting material | |
| CN105733382B (en) | A kind of micro-nano reinforced steel bar rust preventing agent and preparation method thereof of autoclaved aerated concrete slab | |
| CN116396051A (en) | A kind of anti-seepage early-strength shotcrete and its application in the condition of over-excavation and water seepage | |
| CN108793935A (en) | Prefabricated siccative gunite concrete | |
| KR100884285B1 (en) | Soft Ground Improvement Hardener, Ultra High Pressure Water Spraying Device and Ground Improvement Method Using The Same | |
| CN100460353C (en) | Multifunctional anti-seepage microcrystalline concrete waterproof additive | |
| CN103553541B (en) | Pile bottom sediment curing agent | |
| CN101255693A (en) | Ground strengthening cement mortar rotary-spraying pile and construction method | |
| CN103539416B (en) | A kind of anti-shearing synchronous grouting dedicated mortar and its preparation method | |
| CN108840655A (en) | A kind of modified dual-liquid slip-casting material | |
| JPH10168451A (en) | Suspended grouting agent and ground injection consolidation method using it | |
| KR100922081B1 (en) | Soil pavement composition and soil pavement construction method using same | |
| JPH10168452A (en) | Water glass based suspension grout and method for grouting and solidifying ground by using it | |
| CN108395126A (en) | A kind of impervious blocking material and the application in hydraulic engineering | |
| CN108484015B (en) | Underwater slurry filling concrete for assisting shield to penetrate through interval air shaft | |
| CN103224364A (en) | Low carbon and high performance series concrete special for tunnel spraying |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080917 |