chapter 3 rigid pavement - DOT On-Line Publications - Department ...

12.
13.
14.
TRUCK REGUIREMENTS
FHWA TECHNICAL ADVISORY T 5080.17
July 14, 1994
ATTACHMENT 3
Is all concrete in a stationary mixer being deposited
within 30 minutes when hauled in non-agitating trucks
and within 90 minutes when hauled in agitator trucks?
Is transit mixed concrete being delivered and deposited
within 90 minutes from the time stamped on the ticket?
If the contractor plans to use previously placed
-pavement as.a haul road, are the truck weights checked
to assure compliance with maximum weights permitted by
State Law?
REINFORCEMENT PLACEMENT
IS the reinforcement being placed in accordance with
one of the following methods?
Method A - After the full depth concrete is struck off
'the reinforcement should be placed into the concrete to
the .required depth by mechanical means.
Method B - The.reinforcement should be supported on the
prepared subbase by approved chairs having sand plates.
Method C - When the concrete is being placed in two
layers the reinforcement should be laid full length on
the struck-off bottom layer of concrete in its final
position without further manipulation. (Cover within
30 minutes.) The depth of the first lift is 2/3 the
depth of the pavement.
Method Q - The reinforcement may be placed in the
pavement using a method which does not require
transverse steel or support chairs for support of the
longitudinal steel. Tie bars at longitudinal joints
are still required.
S OF FORM TYPE PAVING
.- -
Is all of the required concrete finishing equipment on
the job and in acceptable working condition? Are the
following sequences for form type paving being properly
followed:
3.10.35