GB2165568A - Bedding of ironwork using a semi rigid foam system formwork - Google Patents

Bedding of ironwork using a semi rigid foam system formwork Download PDF

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Publication number
GB2165568A
GB2165568A GB08416543A GB8416543A GB2165568A GB 2165568 A GB2165568 A GB 2165568A GB 08416543 A GB08416543 A GB 08416543A GB 8416543 A GB8416543 A GB 8416543A GB 2165568 A GB2165568 A GB 2165568A
Authority
GB
United Kingdom
Prior art keywords
ironwork
frame
bedding
levels
remove
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Withdrawn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
GB08416543A
Other versions
GB8416543D0 (en
Inventor
John Rox Crossland
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB08416543A priority Critical patent/GB2165568A/en
Publication of GB8416543D0 publication Critical patent/GB8416543D0/en
Publication of GB2165568A publication Critical patent/GB2165568A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

Bedding of ironwork, eg on the carriageway, uses a semi-rigid foam system formwork to support the cast iron frame while bedding and encasing the frame in a mono concrete operation. This provides speed of operation, enables quality control of Contractors easy to monitor, is convenient, and most importantly provides minimal restriction and inconvenience to passing traffic and the general public. <IMAGE>

Description

SPECIFICATION Specification for stabilising and raising ironworks in carriageways, footways, general areas of vehicle traffic Break out perimeter surfacing to base of ironworks, (e.g. manholes, gullies, service access etc), excavate down to the base of ironwork frame. Remove ironwork cover and frame, excavate and remove existing support, for example 9" thick brickwork, giving minimum 150mm depth below ironwork frame base. Clean off mortar and generally inspect condition of remaining shaft for example, brickwork.
Report on condition additional removal of support to be determined on site as to suitability of load bearing. If removal required to be charged extra rate per 75mm. Contractor determines suitability. Make, fix, internal shutter to shaft (internal perimeter of ironwork frame size) using rigid urea foam or suitable material. Construct shutter to desired levels.
Cast insitu bearing ring beam 150mm deep x 200mm wide to desired level.
Place ironwork frame and adjust to level directly on ring beam. Sand breaker and dowel bars incorporated if required. Place concrete filler mix around ironwork frame to desired finsihed level of underside of wearing course. Reinstate tamp surface to finished levels witin 24 hours.
Remove internal shuttering. Cover replaced after shuttering strip out.
1. The bedding of ironwork using the semi-rigid foam system formwork, holding the design mix concrete to allow the bedding and surround of the ironwork frame with concrete while retaining the ironwork at the desired ironwork surface levels.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (1)

  1. **WARNING** start of CLMS field may overlap end of DESC **.
    SPECIFICATION Specification for stabilising and raising ironworks in carriageways, footways, general areas of vehicle traffic Break out perimeter surfacing to base of ironworks, (e.g. manholes, gullies, service access etc), excavate down to the base of ironwork frame. Remove ironwork cover and frame, excavate and remove existing support, for example 9" thick brickwork, giving minimum 150mm depth below ironwork frame base. Clean off mortar and generally inspect condition of remaining shaft for example, brickwork.
    Report on condition additional removal of support to be determined on site as to suitability of load bearing. If removal required to be charged extra rate per 75mm. Contractor determines suitability. Make, fix, internal shutter to shaft (internal perimeter of ironwork frame size) using rigid urea foam or suitable material. Construct shutter to desired levels.
    Cast insitu bearing ring beam 150mm deep x 200mm wide to desired level.
    Place ironwork frame and adjust to level directly on ring beam. Sand breaker and dowel bars incorporated if required. Place concrete filler mix around ironwork frame to desired finsihed level of underside of wearing course. Reinstate tamp surface to finished levels witin 24 hours.
    Remove internal shuttering. Cover replaced after shuttering strip out.
    1. The bedding of ironwork using the semi-rigid foam system formwork, holding the design mix concrete to allow the bedding and surround of the ironwork frame with concrete while retaining the ironwork at the desired ironwork surface levels.
GB08416543A 1984-06-28 1984-06-28 Bedding of ironwork using a semi rigid foam system formwork Withdrawn GB2165568A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08416543A GB2165568A (en) 1984-06-28 1984-06-28 Bedding of ironwork using a semi rigid foam system formwork

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08416543A GB2165568A (en) 1984-06-28 1984-06-28 Bedding of ironwork using a semi rigid foam system formwork

Publications (2)

Publication Number Publication Date
GB8416543D0 GB8416543D0 (en) 1984-08-01
GB2165568A true GB2165568A (en) 1986-04-16

Family

ID=10563146

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08416543A Withdrawn GB2165568A (en) 1984-06-28 1984-06-28 Bedding of ironwork using a semi rigid foam system formwork

Country Status (1)

Country Link
GB (1) GB2165568A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1061727A (en) * 1962-09-06 1967-03-15 William Whitworth Taylor Method and apparatus for installing manhole cover frames
GB1455619A (en) * 1974-09-09 1976-11-17 Corrosion Tech Serv Bedding of load-carrying members on load-supporting foundations

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1061727A (en) * 1962-09-06 1967-03-15 William Whitworth Taylor Method and apparatus for installing manhole cover frames
GB1455619A (en) * 1974-09-09 1976-11-17 Corrosion Tech Serv Bedding of load-carrying members on load-supporting foundations

Also Published As

Publication number Publication date
GB8416543D0 (en) 1984-08-01

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)