×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

waterproofing of bridege deck

waterproofing of bridege deck

waterproofing of bridege deck

(OP)
Hello,

I got to build a bridge and the consultant specify a waterproof layer on the bridge deck. Can i use admix as waterproof agent by mixing waterproofing admixture with the concrete deck to make it impermeable.

Due to some error in level by the consultant, they instruct me to raise the finish level of the asphalt but in the process of not making the cost too expensive, they specify to use a layer of crusher run approximately 150mm above the bridge deck followed by 70mm of asphalt. (note the asphalt is to be done in 2 course, i.e. 40mm base course and 30mm wearing course). If i was to use a fully bonded elastomeric bitumen single layer system such as PARAFOR PONTS as waterproofing on the bridge deck, then i got a problem? normally i would have to seal the concrete with a primer basically siplast primer to seal the concrete deck before torching the PARAFOR PONTS membrane.After i have to lay 150mm crusherrun 0/20 on the deck and compact to 98% heavy duty, followed by primer and base coarse 40mm thick and then tack coat followed by wearing course 30mm thick.

I think something is wrong but i can't figure it out. The crusher layer above the waterproofing membrane seem odds to me. Do i rather put a primer coat before applying the crusher run layer. Next i will have to compact to 98% Max dry density and then apply another layer of prime coat before 40mm thick 0/14 base course is laid. Is that right?

If i was to waterproof the concrete with an admix then how to do with the crusher run on the deck? Shall i use a prime coat before laying the crusher run and then compact and then re-add a layer of prime coat before doing the base course 40mm thick. (base course is 0/14 and 40mm)

Can someone provide me a good explanation on such as this is the first time i heard we add a layer of crusher run on a bride deck.

RE: waterproofing of bridege deck

In order to make the right decision, you need to have a firm understanding of what crusher run actually is, and how it can best be purposed. Crusher run creates a firm base that will hold the stone and mason pavers in place so that such pathways continue to look and function as originally intended. #LES ENTREPRISES LÉVISIENNES#asphalte lévis

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close