We are constructing a pervious pavement for a parking lot which is very closed to water. Our contractor has graded and started compacting the soil to try to get 95% compaction. However, it turned out that the groundwater is very close to the grade and the contractor can only get 77% compaction...
We have a project where the contractor is required to remove loose paint which structures which contain lead paint that have rusted over the years. Afterwards, they are required to apply 1) Rust Primer (to control the rust), 2) Another Primer coat (to encapsulate the lead paint), and 3) Final...
The project calls for a retaining wall to be build around a building (See detail). The contractor will remove the concrete pavement and excavate to the sub-grade. The question is "can the retaining wall be poured on the undisturbed sub grade or it needs to be proof compacted. If it does, what...
The scope of SSPC - SP2 is "to remove loose detrimental foreign matter from steel substrates". We have galvanized steel so the contractor is required to remove all loose mill scale, loose rust, paint... The contractor is not required to treat the entire surface?
My project requires the contractor to apply a high performance coating to a canopy located at a cruise terminal. The specification states the steel which is hot-dipped galvanized shall be prepared in accordance to SSPC-SP2 (Hand Tool Cleaning)before the application of the primer. On the other...
The contractor submitted Tyler Union cut sheets for the ductile iron elbow for our fire standpipe project. However, the label on the part shows "UFCO" which according to the Contractor is a part produced by a union foundry owned jointly by Tyler Union. The specification requires the part to be...
Our specifications required the pipes for the new standpipe system to be UL listed. When the pipes were delivered, some pipes with a certain heat number had UL labels while pipes with different heat numbers did not. The contractor explains that UL label is not required for it to be UL listed...
Recently, a contractor completed a new standpipe installation on a project and has some pipes left over. The contractor also has another project in which they received approval for a different manufactured pipes. When they moved the leftover pipes from the previous project to the staging area...
We are backfilling 6 ft at 95% compaction. I have checked with my coworker who said there is no ASTM testing requirement but the common practice is to test the top 8" -12" layer via nuclear gauge. Is he correct or testing frequency is required?
