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    colorblind's Avatar
    colorblind Posts: 68, Reputation: 1
    Junior Member
    		  
    #1

    Jan 7, 2010, 09:28 AM
    Manhole cover design
    Hi,
    I am working on my final year engineering project and project aims of using polypropylene fiber in concrete. I am aiming at replacing/minimizing the steel reinforcement in manhole covers with polypropylene fibers without affecting the engineering properties.

    Please suggest the design criteria for manhole covers using steel reinforcement and test carried out on it.

    Thanks and Regards,
    Sachin.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
    Uber Member
    		  
    #2

    Jan 7, 2010, 09:37 AM

    Whatever you do, make it Round. So it doesn't fall down the hole.
    Probably the only 2 shapes that won't fall down the hole is round, and trianglular. Triangle is not practical.
    Have you checked out fiberglass rebar?
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
    Uber Member
    		  
    #3

    Jan 7, 2010, 09:40 AM

    COMPOSITES AND CONCRETE: COMPOSITESWORLD.COM
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