WO2005065906A1 - Method for processing gunned concrete by means of a spraying machine, and spraying machine - Google Patents
Method for processing gunned concrete by means of a spraying machine, and spraying machine Download PDFInfo
- Publication number
- WO2005065906A1 WO2005065906A1 PCT/EP2005/050045 EP2005050045W WO2005065906A1 WO 2005065906 A1 WO2005065906 A1 WO 2005065906A1 EP 2005050045 W EP2005050045 W EP 2005050045W WO 2005065906 A1 WO2005065906 A1 WO 2005065906A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shotcrete
- additive
- processing
- water
- spraying machine
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C9/00—General arrangement or layout of plant
- B28C9/002—Mixing systems, i.e. flow charts or diagrams; Making slurries; Involving methodical aspects; Involving pretreatment of ingredients; Involving packaging
- B28C9/004—Making slurries, e.g. with discharging means for injecting in a well or projecting against a wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/02—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions without using driven mechanical means effecting the mixing
- B28C5/026—Mixing guns or nozzles; Injector mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
- B28C7/0023—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust by heating or cooling
- B28C7/003—Heating, e.g. using steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/0404—Proportioning
- B28C7/0413—Proportioning two or more flows in predetermined ratio
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/0404—Proportioning
- B28C7/0418—Proportioning control systems therefor
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/28—Mixing cement, mortar, clay, plaster or concrete ingredients
-
- 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
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
- C04B2111/00155—Sprayable, i.e. concrete-like, materials able to be shaped by spraying instead of by casting, e.g. gunite
Definitions
- the invention is based on a method for processing shotcrete by means of a spraying machine according to the preamble of the first claim.
- the invention is also based on a spraying machine according to the preamble of the independent device claim.
- the hydraulic binding agent for example cement, lime or gypsum, appropriate additives such as gravel and sand and, if necessary, concrete admixtures are used before spraying with water mixed.
- the wet shotcrete is then conveyed hydraulically to the spray nozzle using the dense phase method or pneumatically using the thin current method.
- the dense stream process the dense stream is torn open shortly before the spray nozzle by means of high air pressure and, if necessary, accelerators are fed in by means of the air stream.
- the accelerator is also metered into the shotcrete with air just before the spray nozzle.
- the dry shotcrete consisting of hydraulic binder, additives and, if necessary, concrete additives is poured into the concrete spraying machine.
- the funding here is pneumatic using the thin-current method. Shortly before the spray nozzle, water is added with an accelerator.
- the concrete admixtures, in particular accelerators, which are added in the area of the spray nozzle, are always metered in in liquid form.
- These liquid additives, in particular solidification accelerators, are usually brought to the spraying station or the spraying machine in containers.
- a problem with these liquid additives, however, is the storage stability, which is often inadequate, as a result of which the additives can become unusable after prolonged storage.
- these liquid concrete admixtures have a relatively large volume, which is why the replenishment to the spraying machine can pose transport and replenishment problems.
- the invention has for its object to be able to process additives in a method for processing sprayed concrete by means of a spraying machine and a spraying machine of the type mentioned at the outset simply and without stability problems during concrete spraying.
- the advantages of the invention can be seen, inter alia, in the fact that, in the concrete spraying method according to the invention, the concrete additive (s) which have a certain solids content and in particular are in powder form are brought directly to the spraying machine, and there in each case only the required amounts of admixture directly with the corresponding amount Water can be mixed. This process involves deeper
- Figure 1 is a schematic representation of a spraying machine. 2 shows a schematic illustration of a mixing device according to the invention; Fig. 3 is a schematic representation of a further mixing device according to the invention. Only the elements essential for the immediate understanding of the invention are shown.
- a spraying machine 1 is shown schematically and in a highly simplified manner in FIG. 1.
- Such a machine comprises a water and compressed air supply 2, wheels 3 with a chassis, a filling funnel 4 for supplying the sprayed concrete, a hose line 5 and a spray nozzle 6 connected to the hose line.
- the hose line 5 can also consist of tubes, but must be flexible at least in the area of the spray nozzle 6 so that the shotcrete can be applied.
- another line 7 is on the
- Additional means arranged, which can be integrated directly into the machine 1 or can also be connected to the machine via lines (not shown).
- Water is metered into the mixer 11 via the water supply 9 by means of a metering valve 15.
- the water can also be temporarily stored in a container (not shown) and brought to a certain processing temperature there.
- a container for example, wing mixers, dispersers or rotostators are used.
- the resulting liquid admixture mixture can be a solution, a dispersion or a combination between a solution and a dispersion. This depends on the solubility of the additive used. Dispersions with less soluble additives should advantageously have a certain stability so as not to sediment if the spraying process is interrupted. Complete solutions are not absolutely necessary, as additives that are more difficult to dissolve in water can also lead to good results in shotcrete.
- the liquid admixture mixture is now fed to the line 7 which, depending on the spraying method, leads water or air to the spray nozzle.
- a metering valve or a metering pump 18 can be arranged in the feed line 17, by means of which the amount of the liquid admixture mixture to be supplied to the shotcrete can be adjusted.
- About 2 to 15% by weight of the liquid admixture mixture based on 100% by weight of the hydraulic binder in the shotcrete is supplied to the shotcrete.
- the addition of the liquid admixture mixture is thus controlled by the throughput of the shotcrete and the proportion of hydraulic binder contained in it.
- the mixing device is operated by a computer control and regulation system, not shown.
- the respective quantities of water, powdery additive 12 and hydraulic binder can be determined via separate measuring devices / counters or directly by means of the metering device 13, the weighing device 14, the metering valve 15, the Dosing valve 18 and the amount of shotcrete or hydraulic binder supplied.
- the present method also allows the content of the powdery additive 12 in the water to be set as desired within the above-mentioned limits. In this way, you can react quickly if the content of hydraulic binder or shotcrete changes.
- the volume of the mixer 11 usually being in a range from 1 to 80 liters. Due to the small amounts and the fact that only the required amounts of additive are liquefied, there are no problems with the stability of the liquid additive in the present process. Furthermore, the volume of the powdery admixture is at least a factor of two smaller than when using liquid admixtures, which results in lower transport costs and a lower environmental impact and the spraying machine can have smaller dimensions. 3, the mixer 11 and the circulation line 16 from FIG. 2 are replaced by a permanent mixer 19, for example an extruder. Such an extruder has at least one mixing and conveying screw.
- a mixing rod with mixing elements can be used as the permanent mixer, which is arranged in a substantially horizontally arranged hollow cylinder.
- the additive supplied via the metering device 13 and the water supplied via the water supply 9 are mixed in the permanent mixer and a solution and / or a dispersion is formed analogously to that described above.
- the mixer or the extruder can also be replaced by components having the same or a similar effect. It is also possible to use a thickened additive or moist powder instead of the powdery additive, which is brought to the appropriate mixing contents with water in the mixing device. However, stability problems may need to be taken into account here.
- the additive to be used for the invention should have a certain solids content of at least 1%, preferably over 10%, particularly preferably over 50%, in particular over 80%.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Nozzles (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006546199A JP2007516871A (en) | 2004-01-06 | 2005-01-06 | Method for treating spouted concrete with a spray device and spray device |
AU2005203893A AU2005203893A1 (en) | 2004-01-06 | 2005-01-06 | Method for processing gunned concrete by means of a spraying machine, and spraying machine |
EP05707745A EP1704030A1 (en) | 2004-01-06 | 2005-01-06 | Method for processing gunned concrete by means of a spraying machine, and spraying machine |
CN2005800020199A CN1910025B (en) | 2004-01-06 | 2005-01-06 | Method for processing gunned concrete by means of a spraying machine, and spraying machine |
CA002551288A CA2551288A1 (en) | 2004-01-06 | 2005-01-06 | Method for processing gunned concrete by means of a spraying machine, and spraying machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04000085.3 | 2004-01-06 | ||
EP04000085 | 2004-01-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005065906A1 true WO2005065906A1 (en) | 2005-07-21 |
Family
ID=34745843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/050045 WO2005065906A1 (en) | 2004-01-06 | 2005-01-06 | Method for processing gunned concrete by means of a spraying machine, and spraying machine |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1704030A1 (en) |
JP (1) | JP2007516871A (en) |
CN (1) | CN1910025B (en) |
AU (1) | AU2005203893A1 (en) |
CA (1) | CA2551288A1 (en) |
WO (1) | WO2005065906A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2070673A2 (en) | 2007-12-12 | 2009-06-17 | Deutsche Amphibolin-Werke Von Robert Murjahn Stiftung & Co. KG | Apparatus for mixing building materials |
CN101519971B (en) * | 2009-03-28 | 2011-05-11 | 中国矿业大学 | Feeding device of spraying machine |
WO2011089076A1 (en) * | 2010-01-21 | 2011-07-28 | Construction Research & Technology Gmbh | Concrete spraying method using heat recovery |
EP2436496A1 (en) * | 2010-10-01 | 2012-04-04 | Sika Technology AG | Mixing unit for pumpable mixtures, particularly for sprayed concrete |
WO2012042012A1 (en) * | 2010-10-01 | 2012-04-05 | Sika Technology Ag | Mixing apparatis for pumpable mixtures and method related thereto |
CN103158199A (en) * | 2012-11-12 | 2013-06-19 | 湖南天雁机械有限责任公司 | Automatic mixing device for gypsum slurry |
EP3263301A1 (en) * | 2011-05-25 | 2018-01-03 | Werner Sobek Group GmbH | Device and method for producing components having at least one continuous property change |
DE102021104997A1 (en) | 2021-03-02 | 2022-09-08 | Wilhelm Tölke GmbH & Co KG | conditioner |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101397848B (en) * | 2007-09-29 | 2010-09-01 | 李卫平 | Horizontal type spraying machine |
EP2476530A1 (en) * | 2011-01-12 | 2012-07-18 | Sika Technology AG | Dosing unit and housing element for a mixing device |
CN102950654B (en) * | 2012-11-20 | 2015-04-22 | 广新海事重工股份有限公司 | Slurry agitating and circulating system |
CN108756939A (en) * | 2018-05-24 | 2018-11-06 | 陕西金石混凝土科技发展有限公司 | Construction of shotcrete is with by pneumatically placed concrete and accelerator temperature elevation system and method |
JP7266661B1 (en) | 2021-11-24 | 2023-04-28 | 招平 吉永 | Mixed material pumping device in concrete or mortar spraying system |
Citations (7)
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---|---|---|---|---|
US3625724A (en) * | 1968-09-23 | 1971-12-07 | Altrona Corp | Cellular concrete and method for producing the same |
DE2166509A1 (en) * | 1971-08-20 | 1974-07-11 | Bergwerksverband Gmbh | Concrete mixer dispensing plant - comprises cement screw conveyor and automatic liquid additive and water mixer-dispenser |
FR2340775A1 (en) * | 1976-02-13 | 1977-09-09 | Lambert Ind | Mixer dispenser for gypsum or cement - has injection of pigment contg. water into pure water before mixing |
US4357110A (en) * | 1979-09-17 | 1982-11-02 | Hope Henry F | Mixing apparatus |
US4403863A (en) * | 1980-07-12 | 1983-09-13 | Pacific Metals, Co., Ltd. | Method for preparing concrete by use of multi-layer pan type mixer |
US4795263A (en) * | 1985-02-13 | 1989-01-03 | Sumitomo Corporation | Method of producing concrete |
EP0394785A1 (en) * | 1989-04-26 | 1990-10-31 | SAMI S.N.C. DI BERTOLINI CLAUDIO & C. | Means and process for automatic coloring of concrete |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2340775A1 (en) * | 1973-08-11 | 1975-02-13 | Ymos Metallwerke Wolf & Becker | Safety catch for vehicle seat back hinge - uncouples hand adjustment lever if seat back is displaced in collision |
-
2005
- 2005-01-06 CN CN2005800020199A patent/CN1910025B/en not_active Expired - Fee Related
- 2005-01-06 CA CA002551288A patent/CA2551288A1/en not_active Abandoned
- 2005-01-06 JP JP2006546199A patent/JP2007516871A/en active Pending
- 2005-01-06 AU AU2005203893A patent/AU2005203893A1/en not_active Abandoned
- 2005-01-06 EP EP05707745A patent/EP1704030A1/en not_active Withdrawn
- 2005-01-06 WO PCT/EP2005/050045 patent/WO2005065906A1/en not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3625724A (en) * | 1968-09-23 | 1971-12-07 | Altrona Corp | Cellular concrete and method for producing the same |
DE2166509A1 (en) * | 1971-08-20 | 1974-07-11 | Bergwerksverband Gmbh | Concrete mixer dispensing plant - comprises cement screw conveyor and automatic liquid additive and water mixer-dispenser |
FR2340775A1 (en) * | 1976-02-13 | 1977-09-09 | Lambert Ind | Mixer dispenser for gypsum or cement - has injection of pigment contg. water into pure water before mixing |
US4357110A (en) * | 1979-09-17 | 1982-11-02 | Hope Henry F | Mixing apparatus |
US4403863A (en) * | 1980-07-12 | 1983-09-13 | Pacific Metals, Co., Ltd. | Method for preparing concrete by use of multi-layer pan type mixer |
US4795263A (en) * | 1985-02-13 | 1989-01-03 | Sumitomo Corporation | Method of producing concrete |
EP0394785A1 (en) * | 1989-04-26 | 1990-10-31 | SAMI S.N.C. DI BERTOLINI CLAUDIO & C. | Means and process for automatic coloring of concrete |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2070673A2 (en) | 2007-12-12 | 2009-06-17 | Deutsche Amphibolin-Werke Von Robert Murjahn Stiftung & Co. KG | Apparatus for mixing building materials |
EP2070673A3 (en) * | 2007-12-12 | 2010-11-10 | Deutsche Amphibolin-Werke von Robert Murjahn Stiftung & Co KG | Apparatus for mixing building materials |
CN101519971B (en) * | 2009-03-28 | 2011-05-11 | 中国矿业大学 | Feeding device of spraying machine |
WO2011089076A1 (en) * | 2010-01-21 | 2011-07-28 | Construction Research & Technology Gmbh | Concrete spraying method using heat recovery |
CN103118845A (en) * | 2010-10-01 | 2013-05-22 | Sika技术股份公司 | Mixing apparatis for pumpable mixtures and method related thereto |
WO2012042012A1 (en) * | 2010-10-01 | 2012-04-05 | Sika Technology Ag | Mixing apparatis for pumpable mixtures and method related thereto |
EP2436496A1 (en) * | 2010-10-01 | 2012-04-04 | Sika Technology AG | Mixing unit for pumpable mixtures, particularly for sprayed concrete |
AU2011310100B2 (en) * | 2010-10-01 | 2015-01-15 | Sika Technology Ag | Mixing apparatus for pumpable mixtures and method related thereto |
US9364969B2 (en) | 2010-10-01 | 2016-06-14 | Sika Technology Ag | Mixing apparatus for pumpable mixtures and method related thereto |
CN103118845B (en) * | 2010-10-01 | 2016-08-17 | Sika技术股份公司 | Mixing arrangement and method for pumpable mix |
EP3263301A1 (en) * | 2011-05-25 | 2018-01-03 | Werner Sobek Group GmbH | Device and method for producing components having at least one continuous property change |
CN103158199A (en) * | 2012-11-12 | 2013-06-19 | 湖南天雁机械有限责任公司 | Automatic mixing device for gypsum slurry |
CN103158199B (en) * | 2012-11-12 | 2015-07-01 | 湖南天雁机械有限责任公司 | Automatic mixing device for gypsum slurry |
DE102021104997A1 (en) | 2021-03-02 | 2022-09-08 | Wilhelm Tölke GmbH & Co KG | conditioner |
Also Published As
Publication number | Publication date |
---|---|
CN1910025A (en) | 2007-02-07 |
CA2551288A1 (en) | 2005-07-21 |
CN1910025B (en) | 2010-05-05 |
AU2005203893A1 (en) | 2005-07-21 |
JP2007516871A (en) | 2007-06-28 |
EP1704030A1 (en) | 2006-09-27 |
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