GB1486195A - Formulation for concrete or like water hardened mixed material - Google Patents

Formulation for concrete or like water hardened mixed material

Info

Publication number
GB1486195A
GB1486195A GB5765973A GB5765973A GB1486195A GB 1486195 A GB1486195 A GB 1486195A GB 5765973 A GB5765973 A GB 5765973A GB 5765973 A GB5765973 A GB 5765973A GB 1486195 A GB1486195 A GB 1486195A
Authority
GB
United Kingdom
Prior art keywords
concrete
inches
blocks
fibres
aggregate
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.)
Expired
Application number
GB5765973A
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.)
John Laing and Son Ltd
Original Assignee
John Laing and Son Ltd
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 John Laing and Son Ltd filed Critical John Laing and Son Ltd
Priority to GB5765973A priority Critical patent/GB1486195A/en
Priority to FR7440940A priority patent/FR2254532B3/fr
Priority to DE19742459141 priority patent/DE2459141A1/en
Priority to BE151425A priority patent/BE823261A/en
Publication of GB1486195A publication Critical patent/GB1486195A/en
Expired 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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/10—Eliminating iron or lime
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/005—Props; Chocks, e.g. made of flexible containers filled with backfilling material characterised by the material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Revetment (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

1486195 Cellular concretes JOHN LAING & SON Ltd 12 Dec 1974 [12 Dec 1973] 57659/73 Heading C3N [Also in Divisions C1 and E1] A hardened concrete or mortar formulation of which the controlled deformation characteristics under compression loading render it particularly suitable for use as a support for the roof of a mine-working excavation, consists essentially of a cementitious water-hardened binding agent, an aggregate, from 5% to 60% by volume of entrained air and fibres in an amount of from above 2À2% to 22% by weight of the binding agent. The formulation may contain Portland cement or high-alumina cement, natural or synthetic aggregate of up to 1¢ inches diameter with an aggregate: cement ratio of below 10 : 1 and fibres with lengths of up to 2 inches. A cribbage of aspect ratio 3 : 1 may be formed of blocks of the concrete of size 10 to 60 inches long and 4 to 40 square inches average cross-sectional area (see Fig. 1). The blocks may have the configurations depicted in Figs. 2 and 3. In Fig. 2, the grooves 4 are deeper than the projections 5. The waisted block (Fig. 3) may contain 3% by volume of 40 mm. polypropylene fibres, as fibrous constituent, and three figureof-eight polypropylene cords with the loops inside the wider portions for reinforcement. The blocks may be shrinkwrapped in polymer film. The deformation characteristics of the concrete provide for a controlled gradual settlement of the supported roof.
GB5765973A 1973-12-12 1973-12-12 Formulation for concrete or like water hardened mixed material Expired GB1486195A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB5765973A GB1486195A (en) 1973-12-12 1973-12-12 Formulation for concrete or like water hardened mixed material
FR7440940A FR2254532B3 (en) 1973-12-12 1974-12-12
DE19742459141 DE2459141A1 (en) 1973-12-12 1974-12-12 CONCRETE OR THE SAME MOERTEL, MOLDING BLOCKS MADE FROM IT AND THE USE OF THESE MOLDING BLOCKS
BE151425A BE823261A (en) 1973-12-12 1974-12-12 COMPOSITION OF CONCRETE OR SIMILAR MIXED WATER-CURED MATERIAL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5765973A GB1486195A (en) 1973-12-12 1973-12-12 Formulation for concrete or like water hardened mixed material

Publications (1)

Publication Number Publication Date
GB1486195A true GB1486195A (en) 1977-09-21

Family

ID=10479729

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5765973A Expired GB1486195A (en) 1973-12-12 1973-12-12 Formulation for concrete or like water hardened mixed material

Country Status (4)

Country Link
BE (1) BE823261A (en)
DE (1) DE2459141A1 (en)
FR (1) FR2254532B3 (en)
GB (1) GB1486195A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133056A (en) * 1982-12-31 1984-07-18 Evans Bay Timber Co Ltd Improvements in and/or relating to cribwalling
GB2180866A (en) * 1985-09-26 1987-04-08 John Douglas Thompson Mine chock construction
US4664562A (en) * 1980-10-30 1987-05-12 Clark Erin C Cribwalling
WO2000036274A1 (en) * 1998-12-14 2000-06-22 Grinaker Construction Limited An underground support pack
WO2000053892A1 (en) * 1999-03-09 2000-09-14 Denis Allen Sharp Mining support crib
AT500244A1 (en) * 2004-01-07 2005-11-15 Schotter Und Betonwerk Karl Sc FRESH-CONCRETE, FIXED CONDITION AND METHOD FOR THE PRODUCTION THEREOF AND THE USE OF THE FIXED CONCRETE

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4565469A (en) * 1982-08-25 1986-01-21 Commercial Shearing, Inc. Cribbing

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664562A (en) * 1980-10-30 1987-05-12 Clark Erin C Cribwalling
GB2133056A (en) * 1982-12-31 1984-07-18 Evans Bay Timber Co Ltd Improvements in and/or relating to cribwalling
GB2180866A (en) * 1985-09-26 1987-04-08 John Douglas Thompson Mine chock construction
WO2000036274A1 (en) * 1998-12-14 2000-06-22 Grinaker Construction Limited An underground support pack
WO2000053892A1 (en) * 1999-03-09 2000-09-14 Denis Allen Sharp Mining support crib
GB2362899A (en) * 1999-03-09 2001-12-05 Dennis Allen Sharp Mining Support Crib
AT500244A1 (en) * 2004-01-07 2005-11-15 Schotter Und Betonwerk Karl Sc FRESH-CONCRETE, FIXED CONDITION AND METHOD FOR THE PRODUCTION THEREOF AND THE USE OF THE FIXED CONCRETE
AT500244B1 (en) * 2004-01-07 2007-07-15 Schotter Und Betonwerk Karl Sc FRESH-CONCRETE, FIXED CONDITION AND METHOD FOR THE PRODUCTION THEREOF AND THE USE OF THE FIXED CONCRETE

Also Published As

Publication number Publication date
FR2254532B3 (en) 1977-09-16
FR2254532A1 (en) 1975-07-11
DE2459141A1 (en) 1975-06-26
BE823261A (en) 1975-06-12

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee