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AU4008997A - Process and device for producing coated aggregates for construction concrete and thus improving the fresh and/or set concrete properties - Google Patents

Process and device for producing coated aggregates for construction concrete and thus improving the fresh and/or set concrete properties

Info

Publication number
AU4008997A
AU4008997A AU40089/97A AU4008997A AU4008997A AU 4008997 A AU4008997 A AU 4008997A AU 40089/97 A AU40089/97 A AU 40089/97A AU 4008997 A AU4008997 A AU 4008997A AU 4008997 A AU4008997 A AU 4008997A
Authority
AU
Australia
Prior art keywords
concrete
coating
fresh
aggregate
construction
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.)
Abandoned
Application number
AU40089/97A
Inventor
Harald Garrecht
Joachim Gotz
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.)
Universitaet Karlsruhe
Original Assignee
Universitaet Karlsruhe
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 Universitaet Karlsruhe filed Critical Universitaet Karlsruhe
Publication of AU4008997A publication Critical patent/AU4008997A/en
Abandoned legal-status Critical Current

Links

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
    • 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
    • C04B20/12—Multiple coating or impregnating
    • 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
    • C04B20/1055—Coating or impregnating with inorganic materials
    • C04B20/1077—Cements, e.g. waterglass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Aftertreatments Of Artificial And Natural Stones (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)

Abstract

A process for producing a coated aggregate for construction concrete, in which the coating consists of cements, concrete additives and/or additional substances, as well as other auxiliary substances, is characterised in that a compact and dense coating which is thinner than the grain diameter is applied on the grain surface of the round or broken aggregate. The coating is applied by progressive agglomeration. For this purpose, the aggregates are previously wetted, the coating being formed by cement which is uniformly added at the same time as water is sprayed. A light aggregate with an open-pore structure sealed by the coating is used, providing a light construction concrete which has in the form of fresh concrete a constant processability and pumpability. The thus obtained concrete has predictable apparent densities in the fresh and set state, as well as a defined concrete solidity.
AU40089/97A 1996-08-14 1997-08-13 Process and device for producing coated aggregates for construction concrete and thus improving the fresh and/or set concrete properties Abandoned AU4008997A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19632711 1996-08-14
DE19632711A DE19632711A1 (en) 1996-08-14 1996-08-14 Additive for lightweight concrete
PCT/DE1997/001720 WO1998006677A1 (en) 1996-08-14 1997-08-13 Process and device for producing coated aggregates for construction concrete and thus improving the fresh and/or set concrete properties

Publications (1)

Publication Number Publication Date
AU4008997A true AU4008997A (en) 1998-03-06

Family

ID=7802584

Family Applications (1)

Application Number Title Priority Date Filing Date
AU40089/97A Abandoned AU4008997A (en) 1996-08-14 1997-08-13 Process and device for producing coated aggregates for construction concrete and thus improving the fresh and/or set concrete properties

Country Status (7)

Country Link
EP (1) EP0950033B1 (en)
AT (1) ATE210102T1 (en)
AU (1) AU4008997A (en)
CZ (1) CZ297537B6 (en)
DE (3) DE19632711A1 (en)
NO (1) NO327652B1 (en)
WO (1) WO1998006677A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9805998D0 (en) * 1998-03-21 1998-05-20 Al Nageim Hassan Modified aggregates for use in pavement construction
DE10146408B4 (en) * 2001-09-20 2006-03-23 Fritz Herrmann Gmbh & Co. Betonsteinwerke Kg Colored quartz grain and its use
AT412210B (en) * 2003-05-27 2004-11-25 Kranzinger Norbert Production of porous granules used in production of insulating material in building industry comprises foaming slurry composed of sand, hydraulic binder and water with addition of a foaming agent, and further processing
DE10334997B4 (en) * 2003-07-31 2006-01-26 Bene_Fit Gmbh expanded glass grains
US7563492B2 (en) 2005-11-16 2009-07-21 Chisso Corporation Liquid crystal composition and liquid crystal display device
DE102007028445A1 (en) 2007-06-18 2008-12-24 Hochschule Karlsruhe Process and apparatus for solids coating
SK8310Y1 (en) * 2017-10-25 2018-12-03 Povazska Cementaren As Concrete mixture
CN113387659B (en) * 2021-07-21 2022-08-23 四川佰汇混凝土工程有限公司 Recycled concrete and preparation method thereof

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH386664A (en) * 1961-07-10 1965-01-15 Mistarz Karl Process for the production of an artificial stone
FR1335026A (en) * 1962-06-22 1963-08-16 Pre-treated cement for pre-coating and for aggregates
DE2623378A1 (en) * 1976-05-25 1977-12-01 Herbert Wedde Gravel or expanded clay provided with hard coating of mortar - and then used for mfg. terrazzo, facing, or lightweight concrete
US4351670A (en) * 1980-04-04 1982-09-28 Grice Harold E Lightweight concrete and method of making same
DE3040344A1 (en) * 1980-10-25 1982-05-27 Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen Expanded perlite granulate used as light building material - is coated with silicate or esp. sulphate binder set with water
DD208142A1 (en) * 1981-11-23 1984-03-28 Udo Bartlok METHOD FOR PRODUCING COMPONENTS OF LIGHT CONCRETE
JPS5889704A (en) * 1981-11-25 1983-05-28 藤森工業株式会社 Conductive bead
DE3627452A1 (en) * 1986-08-13 1988-02-25 Bisotherm Baustoff Vertriebsge Process for producing breeze (lightweight) concrete bricks (blocks)
FR2664262A1 (en) * 1990-07-03 1992-01-10 Aschero Leon Composition for producing lightweight (breeze) concretes and products resulting therefrom
HU212468B (en) * 1991-01-09 1996-07-29 Gattinger Procedure for making concrete blocks having special properties
ZA925701B (en) * 1991-08-08 1993-04-13 Bst Holdings Pty Ltd Lightweight concrete.
DE4330929A1 (en) * 1993-09-13 1995-03-16 Mario Reinhold Insulation material for interior finishing and processes for its production and use

Also Published As

Publication number Publication date
EP0950033B1 (en) 2001-12-05
DE19780838D2 (en) 1999-10-14
DE59705712D1 (en) 2002-01-17
NO327652B1 (en) 2009-09-07
NO990582L (en) 1999-02-08
ATE210102T1 (en) 2001-12-15
DE19780838B4 (en) 2010-08-12
NO990582D0 (en) 1999-02-08
DE19632711A1 (en) 1998-02-19
EP0950033A1 (en) 1999-10-20
CZ47199A3 (en) 1999-07-14
CZ297537B6 (en) 2007-01-03
WO1998006677A1 (en) 1998-02-19

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