GB1009668A - Method for manufacturing pressed concrete - Google Patents

Method for manufacturing pressed concrete

Info

Publication number
GB1009668A
GB1009668A GB4328461A GB4328461A GB1009668A GB 1009668 A GB1009668 A GB 1009668A GB 4328461 A GB4328461 A GB 4328461A GB 4328461 A GB4328461 A GB 4328461A GB 1009668 A GB1009668 A GB 1009668A
Authority
GB
United Kingdom
Prior art keywords
concrete
pressure
box
cylinders
cotters
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
GB4328461A
Inventor
Yutaka Tsuda
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.)
Yawata Iron and Steel Co Ltd
Original Assignee
Yawata Iron and Steel Co 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 Yawata Iron and Steel Co Ltd filed Critical Yawata Iron and Steel Co Ltd
Priority to GB4328461A priority Critical patent/GB1009668A/en
Publication of GB1009668A publication Critical patent/GB1009668A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/022—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form combined with vibrating or jolting

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

1,009,668. Moulded concrete. YAWATA IRON & STEEL CO. Dec. 4, 1961, No. 43284/61. Heading B5A. A method of manufacturing pressed concrete comprises pouring concrete into a moulding box in which reinforcing material is arranged, vibrating the box, pressing the concrete first at about 10 kg./cm.<SP>2</SP> for a short time and secondly at 20 kg./cm.<SP>2</SP>, and then curing the concrete while in the compressed state in steam. Iron or steel bars are welded or jointed together and are placed in an easily assembled and disassembled moulding box. The concrete is so mixed and kneaded that it easily flows through the reinforcement and into the corners of the box. The preparatory pressing is to enable the pressure distribution to be uniform for the high pressure and to allow water to separate from the concrete. The pressure is applied to the lid 9 of the box by means of cotters 6, hydraulic pressure cylinders 3 on either side of the mould, switching valve 15, pressure regulating valve 14, accumulator 17 and pump 16. The common pressure supply system to the various cylinders 3 allows a uniform pressure to be applied to the mould. The high pressure is applied for 6-8 minutes before the pressure in cylinders 3 is released. The box together with frames 5 and cotters 6 is put in a steam curing chamber for about 2¢ hours. Finally the concrete is removed from the box and cured in water.
GB4328461A 1961-12-04 1961-12-04 Method for manufacturing pressed concrete Expired GB1009668A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4328461A GB1009668A (en) 1961-12-04 1961-12-04 Method for manufacturing pressed concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4328461A GB1009668A (en) 1961-12-04 1961-12-04 Method for manufacturing pressed concrete

Publications (1)

Publication Number Publication Date
GB1009668A true GB1009668A (en) 1965-11-10

Family

ID=10428085

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4328461A Expired GB1009668A (en) 1961-12-04 1961-12-04 Method for manufacturing pressed concrete

Country Status (1)

Country Link
GB (1) GB1009668A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2201550A1 (en) * 1971-01-14 1972-07-27 Svensk Hardbetongteknik Ab Method and device for the production of concrete parts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2201550A1 (en) * 1971-01-14 1972-07-27 Svensk Hardbetongteknik Ab Method and device for the production of concrete parts

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