EP2639030A1 - Système amélioré de fabrication, manipulation et pose du béton - Google Patents

Système amélioré de fabrication, manipulation et pose du béton Download PDF

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Publication number
EP2639030A1
EP2639030A1 EP12382092.0A EP12382092A EP2639030A1 EP 2639030 A1 EP2639030 A1 EP 2639030A1 EP 12382092 A EP12382092 A EP 12382092A EP 2639030 A1 EP2639030 A1 EP 2639030A1
Authority
EP
European Patent Office
Prior art keywords
concrete
main drum
auxiliary tank
water
laying
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.)
Withdrawn
Application number
EP12382092.0A
Other languages
German (de)
English (en)
Inventor
Serafín Lizarraga Galarza
Juan José Beltrán Núñez
Helmut Döllerer Maier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liebherr Industrias Metalicas SA
Cementos Portland Valderrivas SA
Original Assignee
Liebherr Industrias Metalicas SA
Cementos Portland Valderrivas SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Liebherr Industrias Metalicas SA, Cementos Portland Valderrivas SA filed Critical Liebherr Industrias Metalicas SA
Priority to EP12382092.0A priority Critical patent/EP2639030A1/fr
Priority to PCT/ES2013/070166 priority patent/WO2013135935A1/fr
Publication of EP2639030A1 publication Critical patent/EP2639030A1/fr
Priority to TNP2014000383A priority patent/TN2014000383A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
    • B28C5/4203—Details; Accessories
    • B28C5/4206—Control apparatus; Drive systems, e.g. coupled to the vehicle drive-system
    • B28C5/422—Controlling or measuring devices
    • 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
    • B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
    • B28C5/4203—Details; Accessories
    • B28C5/4231—Proportioning or supplying water
    • 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
    • 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
    • B28C7/02—Controlling the operation of the mixing
    • 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
    • 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
    • B28C7/12—Supplying or proportioning liquid ingredients

Definitions

  • the present invention relates to a system for manufacturing, manipulating and laying up concrete, in particular to an improved system for manufacturing, manipulating and laying-up concrete or accelerated concrete that can be used in a any range of climatic conditions.
  • Another additional problem is that the hardening of concrete and the time necessary to obtain its proper mechanical and laying up properties depends on different factors, and one of these is temperature: as the ambient temperature decreases, the hardening time of concrete increases in an exponential way. Thus, ambient temperatures below 10oC delay significantly the hardening time. For this reason, the current tendency of hardening concrete at high ambient temperatures poses several problems, such as: more water is require in the process, the hardening is quicker and the mechanical (durability and resistance) properties of the concrete obtained are lower, there exists a higher potential of thermical cracking, the concrete obtained could have a high risk of durability problems as secondary etringitte or ASR detereorations.
  • additives for accelerating the hardening of concrete such as calcium derivates (calcium chloride, calcium formate and, particularly, calcium or sodium silicates, calcium or sodium doubles or similar cations) presents several problems of toxicity, durability, price increase and limitations for transportation and for laying up.
  • Examples in the prior art of additives used for accelerated concrete base on aluminates are known as per KR 101019073 , latex as per KR 100774448 or sulphoaluminate as per KR 101011504 , for example.
  • KR 1020090077342 or KR 100908675 disclose additional concrete coatings for shortening the hardening time and which are applied onto an existing concrete structure. These documents do not, however, provide any system for manufacturing, manipulating and laying up on site any accelerated concrete, neither do they disclose concrete mixtures allowing hardening times below 8 hours.
  • Document EP 1103533 describes a method and an apparatus for obtaining low density concrete foam in site, for example. This document does not, however, cannot provide any concrete material different from a low density foam, so the application is very limited to specific works and sites.
  • the present invention is intended to solve the above-mentioned problems.
  • the present invention relates to a system for manufacturing, manipulating and laying-up concrete that can be used in any climatic conditions: the system of the invention can be used for manufacturing, manipulating and laying up standard concrete and also accelerated concrete; even more, standard systems used in the manipulation of standard concrete can be redesigned into these improved systems for manipulating and laying-up concrete that can be used independently of the climatic conditions, including extreme temperature conditions.
  • the system of the invention minimizes emissions and maximizes the efficiency of the mentioned process of manipulating and laying-up accelerate concrete.
  • the system of the invention is used for accelerate concrete that is laid up and gets proper mechanical conditions in less than 8 hours, approximately.
  • the system for manufacturing, manipulating and laying up concrete allows transferring the dry concrete mix (aggregates and cement) to the job site, allowing that, once on site, the whole mixture is mixed by adding water and admixtures. Therefore, depending on the site conditions (such as temperature) and on the hardening time required, concrete is manufactured just in time, before going to be laid up, and customized or tailored depending on the specific requirements needed and on the laying up conditions.
  • the system of the invention comprises a main drum rotatable an comprising aggregates and cement, and several auxiliary tanks independent from the main drum, these auxiliary tanks comprising admixtures and water, being connected to the said main drum through various accuracy measurement devices, so that a given volume of water and admixtures in a given time is supplied to the main drum.
  • the system of the invention comprises a control system that governs the flow of water and admixtures that the auxiliary tanks supply to the main drum, this control system also governing the timing and the order of the dosages, the temperature values and the mixing times, among other parameters, both of the water and of the admixtures added to the mixture.
  • the parameters governing the control system are configured when the system for manipulating and laying of the invention exits the concrete plant, so that no human intervention is required on that system until the concrete mixture is discharged for the laying at job site.
  • control system is configured so that the main drum begins to rotate commanded by said control system when the dosage of water from the auxiliary tanks to the main drum starts, such that the main drum keeps rotating until the control system instructs the system for manipulating and laying of the invention that the concrete mixture is prepared and ready for being laid.
  • Figure 1 is a schematic view of the system to obtain concrete and its various components, according to an embodiment of the present invention.
  • a preferred embodiment of the present invention refers to a system 1 for manufacturing, manipulating and laying up a concrete mixture, preferably comprising a main drum 10 able to rotate, more preferably a conical rotatable drum, such that this drum 10 comprises aggregates and cement in a certain proportion with a certain weight, defined preferably in a concrete plant, the aggregates and cement having been supplied to the main drum 10.
  • the system 1 further comprises a first auxiliary tank 20 independent from the main drum 10, this first auxiliary tank 20 comprising water for mixing the concrete mixture and for cleaning the main drum 10.
  • the mentioned first auxiliary tank 20 is connected to the main drum 10 via a primary accuracy measurement device 2, particularly a precision dispenser, providing a given volume of water at a give time to the main drum 10.
  • the first auxiliary tank 20 mentioned above may comprise a heater and temperature control device 5 for the water being provided to the main drum 10, so as to control the temperature of the concrete mixture obtained.
  • the system 1 of the invention further comprises at least one secondary auxiliary tank 40, preferably from three to six secondary auxiliary tanks 40, independent from the main drum 10 primary and from the first auxiliary tank 20, these secondary auxiliary tanks 40 comprising different admixtures.
  • Each one of the secondary auxiliary tank 40 is connected to the main container 10 through a measurement device 3.
  • the first auxiliary tank 20 is connected to the main drum 10 through the primary accuracy measurement device 2, particularly precision dispensers batching, such that the secondary auxiliary tanks 40 and the first auxiliary tank 20 provide the main drum 10 the precise amounts of admixture and water at the predetermined times.
  • These secondary auxiliary tanks 40 are pressurized to impulse the admixtures to the main drum 10, and are also thermally isolated.
  • the admixtures, coming from the secondary auxiliary tanks 40, are metered to the main drum 10, through a common pipe 60, and also connected to an water impulse pump 50, as to ensure that, after each dose of an admixture, the pipe 60 is cleaned by injecting controlled amounts of cleaning water, coming from the first auxiliary tank 20.
  • the system 1 of the invention includes also an injection water pipe 100 to ensure the cleaning of the inside of the main drum 10.
  • the system 1 of the invention also comprises a control system 30 base on a PLC, this control system 30 being connected via a field bus of the type CAN BUS ® to absolutely control all of the various devices mentioned above for the system 1.
  • This control system 30, duly programmed with software developed for specific tasks, sends and receives information from and to all the devices to which it is connected, governing such devices in accordance with the reference values for each type of concrete mixture made together with the mode of its laying.
  • the control system 30 also receives preferably in the concrete plant, the aggregate and cement data that are loaded into the main drum 10, also receiving preferably in the concrete plant the reference values for the dosage of each admixture and for the water to be supplied to the concrete mixture, as well as the data of the cycles and the mixing times in the mixture.
  • the control system 30 is configured so that the main drum 10 begins to rotate commanded by said control system 30 when the dosage of water of the first auxiliary tank 20 to the main drum 10 begins, such that the main drum 10 keeps rotating until the control system 30 indicates that the concrete mixture is prepared and ready for being laid.
  • the system 1 of the invention performs the mixture and obtention of the concrete mixture at job site: thus, the main drum 10 comprises aggregates and cement, joining them with water and admixtures from the first auxiliary tank 20 and secondary auxiliary tanks 40, respectively, directly at job site. Because of the incorporation to the mixture on site of the water and admixtures, the volume of the later elements must be on average higher than usual, being at the same time desire to have all the components mixed in a short period of time and as evenly as possible.
  • the system 1 of the invention is incorporated into a vehicle.
  • the system 1 when the system 1 is incorporated into a vehicle, it may further comprise an undercarriage crawler track type to enable access to difficult areas, such as wind farms.
  • an undercarriage crawler track type to enable access to difficult areas, such as wind farms.
  • the incorporation of new undercarriage allows the use of the system 1 for the use of the concrete mixture prepared at job site, in places of difficult access, such as wind farms.
  • the control system 30 of the system 1 of the invention controls mainly the Mowing parameters in the production of the concrete mixture:
  • control system 30 mentioned above may be implemented in a PLC through a given control hardware, implemented according to the specifications of the process and the concrete mixture requirement.
  • the system 1 of the invention is preferably used for accelerated concrete that is laid up and gets proper mechanical conditions, of up to 60 MPa as the maximum compression loa that can be withstand according to tests of ASTM C39 Standards, in less than 8 hours, preferably. Tests show that in less than 8 hours from the lay up, accelerated concrete provided by the system 1 of the invention has a compression load typically of 30 or 40 MPa, approximately. Moreover, the system of the invention is used for concrete that can work at temperatures above 45o C and below -5 oC, thus providing a system 1 that is able to work at any temperature range.
  • the system 1 is able to provide concrete tailored and made on site as a function of the ambient temperature conditions where concrete is going to be laid up, of the hardening time and of the stiffness needed after the mentioned hardening time, by means of the control system 30 in the system 1.
  • the system 1 of the invention can be used independently on the distance of the work site where the concrete mixture is needed.
  • One object of the system 1 of the invention is to have higher energy efficiency: because the main drum 10 is not rotating continuously, as in the prior art to prevent the concrete from hardening, the energy consumption of the system 1 is much smaller than that known so far. It is estimate that, when the system 1 is implemented in a vehicle, it consumes an average of 2,000 litres less fuel per year than in the case of the traditional truck mixer.
  • Another major advantage of the system 1 is to reduce CO 2 emissions: taking into consideration the energy estimate given above, assuming CO 2 emissions of 750 g/km and a typical consumption of 30 litres/100 km, the impact in the environment would be reduced by 4,5 tonnes Of CO 2 per vehicle per year.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
EP12382092.0A 2012-03-14 2012-03-14 Système amélioré de fabrication, manipulation et pose du béton Withdrawn EP2639030A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP12382092.0A EP2639030A1 (fr) 2012-03-14 2012-03-14 Système amélioré de fabrication, manipulation et pose du béton
PCT/ES2013/070166 WO2013135935A1 (fr) 2012-03-14 2013-03-14 Système de fabrication, de manipulation et de distribution de ciment
TNP2014000383A TN2014000383A1 (en) 2012-03-14 2014-09-12 System for manufacturing, handling and supplying concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12382092.0A EP2639030A1 (fr) 2012-03-14 2012-03-14 Système amélioré de fabrication, manipulation et pose du béton

Publications (1)

Publication Number Publication Date
EP2639030A1 true EP2639030A1 (fr) 2013-09-18

Family

ID=48289223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12382092.0A Withdrawn EP2639030A1 (fr) 2012-03-14 2012-03-14 Système amélioré de fabrication, manipulation et pose du béton

Country Status (3)

Country Link
EP (1) EP2639030A1 (fr)
TN (1) TN2014000383A1 (fr)
WO (1) WO2013135935A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107584673A (zh) * 2017-10-19 2018-01-16 徐工集团工程机械有限公司 混凝土外加剂添加装置、混凝土制备设备及控制方法
CN109760209A (zh) * 2019-03-05 2019-05-17 上海城建道桥工程有限公司 一种混凝土桥梁的施工装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103737726A (zh) * 2013-12-23 2014-04-23 新疆金宇鑫投资管理有限公司 混凝土搅拌运输罐车运输过程自动添加配料装置
US11766807B2 (en) 2017-01-15 2023-09-26 Michael George BUTLER Apparatuses and systems for and methods of generating and placing zero-slump-pumpable concrete

Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767170A (en) * 1972-04-26 1973-10-23 First Nat Bank Of Missoula Of Method and apparatus for mixing and transporting concrete
US4114193A (en) * 1975-04-23 1978-09-12 Gerhard Hudelmaier Device for the control of concrete manufacture in truck concrete mixers
DE3004090A1 (de) * 1980-02-05 1981-08-13 Alfons 7321 Schlat Seibold Anlage und vorrichtung zum erwaermen des wassers im vorratstank von fertigbeton-fahrmischern
WO1992015437A1 (fr) * 1991-03-04 1992-09-17 Daniel Assh Systeme de controle de l'etat de beton melange
EP1103533A2 (fr) 1999-11-29 2001-05-30 Innovation Holding (U.K.) Limited Procédé et appareil pour la fabrication de béton mousse
AU778765B2 (en) * 1999-12-02 2004-12-23 Construction Research & Technology Gmbh Modified concrete transport mixers
KR20060013302A (ko) 2004-08-06 2006-02-09 김재환 고인성 시멘트 복합체와 포러스콘크리트를 복합한흡음패널의 제조방법 및 제품
KR100690393B1 (ko) 2006-10-31 2007-03-12 (주)한동재생공사 도로포장용 표층 아스콘의 시공방법
KR100774448B1 (ko) 2006-06-22 2007-11-08 (주)삼우아이엠씨 조강 시멘트를 이용한 라텍스 개질 콘크리트 조성물
US20080173372A1 (en) * 2007-01-24 2008-07-24 Mcneilus Truck And Manufacturing, Inc. Non-metallic auxiliary tank system for a vehicle
WO2008150039A1 (fr) 2007-06-08 2008-12-11 Eugene Co., Ltd. Substance composite à résistance au froid et écologique et de nature résistante pour le béton
KR20090077342A (ko) 2008-01-10 2009-07-15 (주)삼우아이엠씨 도로포장의 덧씌우기 공법
KR100908675B1 (ko) 2008-04-17 2009-07-22 (주)대덕레미콘 저온 조기강도 콘크리트 조성물.
WO2009144293A1 (fr) 2008-05-29 2009-12-03 Sika Technology Ag Additif pour liants hydrauliques présentant une durée de traitement élevée et une grande résistance initiale
EP2239120A2 (fr) * 2009-04-08 2010-10-13 ROMBOLD & GFRÖHRER GmbH & CO. KG Véhicule de transport destiné à distribuer un mélange liant/charge
EP2238071A1 (fr) 2008-02-06 2010-10-13 Putzmeister Concrete Pumps GmbH Engin de travail mobile
EP2266770A2 (fr) 2009-06-25 2010-12-29 Tugeb - Polbud Sp. z o.o. Installation de fabrication de béton et procédé pour fabriquer du béton
KR101011504B1 (ko) 2010-08-05 2011-01-31 (주)지에프시알엔디 칼라 밀크 그라우트 및 이를 이용한 조기개통식 콘크리트 포장방법
KR101019073B1 (ko) 2010-07-06 2011-03-07 (주)삼우아이엠씨 초조강 시멘트 조성물 및 이를 이용한 라텍스 개질 콘크리트 조성물
WO2011064644A1 (fr) 2009-11-27 2011-06-03 Andrea Marcantonini Unité mobile de production de béton

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US4752134A (en) 1987-12-11 1988-06-21 Milek Robert C Mobile concrete mixer
US5895116A (en) 1997-08-25 1999-04-20 W.R. Grace & Co. -Conn. Mobile admixture product manufacturing and delivery process and system
DE19952978A1 (de) * 1999-11-03 2001-05-10 Hudelmaier Joerg Qualitätsüberwachungsverfahren

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767170A (en) * 1972-04-26 1973-10-23 First Nat Bank Of Missoula Of Method and apparatus for mixing and transporting concrete
US4114193A (en) * 1975-04-23 1978-09-12 Gerhard Hudelmaier Device for the control of concrete manufacture in truck concrete mixers
DE3004090A1 (de) * 1980-02-05 1981-08-13 Alfons 7321 Schlat Seibold Anlage und vorrichtung zum erwaermen des wassers im vorratstank von fertigbeton-fahrmischern
WO1992015437A1 (fr) * 1991-03-04 1992-09-17 Daniel Assh Systeme de controle de l'etat de beton melange
EP1103533A2 (fr) 1999-11-29 2001-05-30 Innovation Holding (U.K.) Limited Procédé et appareil pour la fabrication de béton mousse
GB2390089A (en) * 1999-11-29 2003-12-31 Innovation Holdings A process for manufacturing concrete on a continuous basis
AU778765B2 (en) * 1999-12-02 2004-12-23 Construction Research & Technology Gmbh Modified concrete transport mixers
KR20060013302A (ko) 2004-08-06 2006-02-09 김재환 고인성 시멘트 복합체와 포러스콘크리트를 복합한흡음패널의 제조방법 및 제품
KR100774448B1 (ko) 2006-06-22 2007-11-08 (주)삼우아이엠씨 조강 시멘트를 이용한 라텍스 개질 콘크리트 조성물
KR100690393B1 (ko) 2006-10-31 2007-03-12 (주)한동재생공사 도로포장용 표층 아스콘의 시공방법
US20080173372A1 (en) * 2007-01-24 2008-07-24 Mcneilus Truck And Manufacturing, Inc. Non-metallic auxiliary tank system for a vehicle
WO2008150039A1 (fr) 2007-06-08 2008-12-11 Eugene Co., Ltd. Substance composite à résistance au froid et écologique et de nature résistante pour le béton
KR20090077342A (ko) 2008-01-10 2009-07-15 (주)삼우아이엠씨 도로포장의 덧씌우기 공법
EP2238071A1 (fr) 2008-02-06 2010-10-13 Putzmeister Concrete Pumps GmbH Engin de travail mobile
KR100908675B1 (ko) 2008-04-17 2009-07-22 (주)대덕레미콘 저온 조기강도 콘크리트 조성물.
WO2009144293A1 (fr) 2008-05-29 2009-12-03 Sika Technology Ag Additif pour liants hydrauliques présentant une durée de traitement élevée et une grande résistance initiale
EP2239120A2 (fr) * 2009-04-08 2010-10-13 ROMBOLD & GFRÖHRER GmbH & CO. KG Véhicule de transport destiné à distribuer un mélange liant/charge
EP2266770A2 (fr) 2009-06-25 2010-12-29 Tugeb - Polbud Sp. z o.o. Installation de fabrication de béton et procédé pour fabriquer du béton
WO2011064644A1 (fr) 2009-11-27 2011-06-03 Andrea Marcantonini Unité mobile de production de béton
KR101019073B1 (ko) 2010-07-06 2011-03-07 (주)삼우아이엠씨 초조강 시멘트 조성물 및 이를 이용한 라텍스 개질 콘크리트 조성물
KR101011504B1 (ko) 2010-08-05 2011-01-31 (주)지에프시알엔디 칼라 밀크 그라우트 및 이를 이용한 조기개통식 콘크리트 포장방법

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107584673A (zh) * 2017-10-19 2018-01-16 徐工集团工程机械有限公司 混凝土外加剂添加装置、混凝土制备设备及控制方法
CN109760209A (zh) * 2019-03-05 2019-05-17 上海城建道桥工程有限公司 一种混凝土桥梁的施工装置

Also Published As

Publication number Publication date
TN2014000383A1 (en) 2015-12-21
WO2013135935A1 (fr) 2013-09-19

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