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Kerb and Channel (gutter) Repairs and or replacement

  • 1.  Kerb and Channel (gutter) Repairs and or replacement

    Posted 16-03-2021 13:39
    We have an aging kerb and channel network of over 3000 km on the Sunshine Coast. Our initial deterioration modelling is telling us that due to the high cost of replacement  we are likely to need to lift our capital renewal allocation significantly in the next five years. This is because removal, disposal and replacement of both K&C and adjacent road pavement and verge and driveways in some cases is required and costly. We allow $350/m. There is also growing  public pressure demanding higher aesthetics not just functionality. We are therefore considering completing more repair options (for non structural breaks i.e. chips and chunks) to stretch our budgets.  Has anyone had success with any propriety products for patching, that stays on?
    We are also seeking to amend our Planning Code for Development Works to mandate slip form kerb and channel using structural concrete, not the extruded zero slump slurry topped product we have traditionally used. Its supply and placement costs are not significantly higher and our testing (through University of the Sunshine Coast) has shown it's significantly tougher and could have an expected life double that of the existing. I'd be interested to know how other council's are handling this significant asset base longer term.

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    Timothy Letchford
    Sunshine Coast Council
    Coordinator, Asset Strategy, Civil Asset Management Branch
    SUNSHINE COAST MC
    Australia
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    Pro Cert 2


  • 2.  RE: Kerb and Channel (gutter) Repairs and or replacement

    Posted 17-03-2021 10:55
    Slip forming produces a much better product. Not often used by the contractors we engage, but done regularly enough to suggest that the sub-contractros charge to them can't be substantially different.

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    Greg Henwood
    HCE Engineers
    Managing Director
    Australia
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    Pro Cert 2


  • 3.  RE: Kerb and Channel (gutter) Repairs and or replacement

    Posted 17-03-2021 10:55
    Hi Timothy, came across this old article
    https://www.ipwea.org/community-home/digestviewer/viewthread?GroupId=289&MessageKey=529e23a7-0060-42f6-82ee-ba6fdd395395&CommunityKey=40161684-473f-4db3-9dbc-ff10c03497e2&tab=digestviewer            ​

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    Lee Lau
    Manningham City Council
    Senior Project Engineer/Manager
    Doncaster East
    Australia
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    Pro Cert 2


  • 4.  RE: Kerb and Channel (gutter) Repairs and or replacement

    Posted 06-05-2021 11:58
    As an update on this issue. Last week Sunshine Coast Council officially endorsed mandating the use of Slip Form kerb and channel over Extruded slurry topped low strength mix via a Planning Scheme Amendment. This is a great win for longer term management of this asset.

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    Timothy Letchford
    Sunshine Coast Council
    Coordinator, Asset Strategy, Civil Asset Management Branch
    SUNSHINE COAST MC
    Australia
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    Pro Cert 2


  • 5.  RE: Kerb and Channel (gutter) Repairs and or replacement

    Posted 07-05-2021 14:36

    Hi Timothy

     

    Although not my technical area of expertise, I have simplistically been playing in my head the idea of using higher strength concrete in our kerbing works to offset against ongoing damage.

     

    We are in a ridiculously flat Council area, typical grade in the 0.2% range though much of our area, where small kerb failures and deflections result in reasonable length water ponding and hence community feedback/complaint.

     

    You referenced some University of Sunshine Coast research, is this something which is been written up and presented in a manner which could possibly be shared.  We would be keen to get a better understanding of the contributing factors in this conversation.

     

    Many Thanks,

     

    Andrew King

    Coordinator Engineering Services

    City Assets

    City of West Torrens

    165 Sir Donald Bradman Drive

    Hilton SA 5033

     

    Phone:  8416 6393

    Email:   aking@wtcc.sa.gov.au

     



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  • 6.  RE: Kerb and Channel (gutter) Repairs and or replacement

    Posted 10-05-2021 15:41
    I would also be interested in the report/research findings by USC if sharing is possible.

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    Cody Granger
    South Burnett Regional Council
    Graduate Engineer
    Kingaroy
    Australia
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    Pro Cert 2


  • 7.  RE: Kerb and Channel (gutter) Repairs and or replacement

    Posted 10-05-2021 12:09
    Hi Timothy

    In a quick answer we have a product that has been successful in trials on foot path trip hazards. We need to do some more testing over the next few weeks but we have a trial patch that tapers from a few mm to about 70 mm. This patch is on a footpath that has been up lifted by tree roots and has been in place for almost a year now.

    Its mainly the process we need to refine so that the only power tools required are a battery driven paddle mixer. We etch the surface with a green friendly acid, prime and lay a high strength grout over. The grout is quick setting so safety barricades can be stripped the same day.

    We manufacturer the Auscon SHS 120 in Australia and are locally owned. Details are on www.auscon.net.au.

    regards Dave Edgley 0418 208 278
    www.wpd.com.au


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    David Edgley
    Waterproofing Direct Pty Ltd
    Managing Director
    WARRIEWOOD
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    Pro Cert 2


  • 8.  RE: Kerb and Channel (gutter) Repairs and or replacement

    Posted 11-05-2021 14:34
    Hi Timothy

    I have a come across a product from Xypex that may be able to help with your kerb and channel challenges.

    Please get in touch with Lawrence and he should be able to give you some advice on the products they use for similar applications.

    Lawrence Smith
    State Business Manager – Victoria
    109 Atlantic Drive Keysborough VIC 3167 Australia
    Phone 03 9545 5283 | Fax 03 9543 7388 | Mobile 0419 483 846
    lawrencesm@ncsaustralia.com.au | www.ncsaustralia.com.au

    Cheers
    Kanch


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    Kanchana Withana
    Civil Design Pty Ltd
    Principal
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    Pro Cert 2