Verified certification of concrete pipe & manhole products with the City's materials testing laboratory.
The markings on HDPE, PVC, or DIP pipe and fittings for size, class, and schedule, etc. to verify compliance with specifications and/or plans. (Write markings on FIR or take a photo)
Materials that are not approved or damaged and mark them with bright paint, or have contractor store material in a different location for easy identification are rejected. The contractor may be able to utilize material on a different project where marking with paint would be detrimental.
Aggregate Base Course Construction
Visually check for areas of unacceptable material by proof-rolling. Note the size and location of all areas in need of correction, to later verify that all soft spots are dug out and replaced with clean rock (and geotextile fabric if appropriate.)
Order gradation, sand equivalent, or wash/200 tests, if necessary.
Order compaction (Proctor) tests to detect any density failures in the aggregate base.
Truck delivery tickets for the first load of concrete delivered (and periodically thereafter) are correct and have approved mix design number. R
Schedule any slump, entrained air, and cylinder tests to be performed, as needed
Check the first load of asphaltic concrete (and periodically thereafter) for the correct, approved Job Mix Formula (JMF) number. Reject any load that has no JMF number or a wrong number attached to it.
Check the temperature of the HMAC at the beginning of paving operations and each time samples are taken. Delivery temperature range is 240 to 325 degrees F for HMAC.
Arrange for testing of asphalt paving compaction density, in accordance with the standard specifications and project requirements.
Source: MaintainX (Community Member)