saw cut expansion joints in concrete highways how the sealent is appl.

[qmorr]

how do they normally apply the sealent in saw cut expansion joints in highways , the silcone sealents and compression type

 

[Ron]

qmorr...first of all, the sawcut joints are not "expansion" joints...they are control joints for controlling the location of shrinkage cracks. Expansion joints are created prior to concrete placement, not afterward.

The sealant that is used in them is typically not silicone...it is usually asphaltic based with polymer modification. It is generally hot applied.

 

[qmorr]

Thank you for the info , could you please tell me where I could get some more info on the procedures and specifacations for these jobs? I have found one site and it is vague it is

http://training.ce.washington.edu/WSDOT/Modules/07_construction/07-10_body.htm#saw_timing

 

[JedClampett]

State Department of Transportation's websites are a wealth of inforamtion for kind of detail. For instance:
ftp://ftp.dot.state.tx.us/pub/txdot-info/cmd/cserve/standard/roadway/js94.pdf
Has the Texas method of sealing joints. Note that you might have to accept some conditions to get in.

 

[GeoPaveTraffic]

I would also recommend ACPA's web site:

http://www.pavement.com/