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abhy_vivek Silver Sponsor
Joined: 26 Jan 2003 Posts: 690
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Posted: Sat Dec 07, 2019 3:19 pm Post subject: 75mm thk CC Wearing Coat on Bridges |
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75mm thk CC Wearing Coat on Bridges
Has anyone experience in using the 75mm thk Cement Concrete Wearing Coat on Bridge deck slab as per MORTH 2702 (instead of conversational 65mm bitumenous wearing coarse) ?
How is the performance on PSC girder bridges? |
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abhy_vivek Silver Sponsor
Joined: 26 Jan 2003 Posts: 690
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Posted: Sat Dec 07, 2019 3:34 pm Post subject: 75mm CC wearing coat |
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Any one has copy of following doc. reg this
PWD Circular No.CEC/1179/50677/CR-225/D-29-A dated 12.08.80, |
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bkkk ...
Joined: 25 Mar 2009 Posts: 203 Location: Tamil Nadu
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Posted: Tue Dec 10, 2019 1:23 pm Post subject: CC wearing coat |
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Dear sir,
In Tamil Nadu lot of bridges have been constructed using CC wearing coat.
Normally M30 design mix is recommended with a nominal steel reinforcement to take care of secondary stresses.But the whole operation needs stringent quality control otherwise several cases of failure have been reported.
Dr.venkat |
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abhy_vivek Silver Sponsor
Joined: 26 Jan 2003 Posts: 690
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Posted: Tue Dec 10, 2019 4:57 pm Post subject: Re: CC wearing coat |
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Extremely thankful for your response Sir, could you mention a few bridges or share some photos / locations?
Are there bridges with PSC girder type superstructure.
Reg
Vivek Abhyankar
bkkk wrote: | Dear sir,
In Tamil Nadu lot of bridges have been constructed using CC wearing coat.
Normally M30 design mix is recommended with a nominal steel reinforcement to take care of secondary stresses.But the whole operation needs stringent quality control otherwise several cases of failure have been reported.
Dr.venkat |
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