wa8yxm wrote:
The condition of the roads depends on many factors. One I need to research more on.
The construction standard.. Did you know that the states are PROHIBITED from doing surprise inspections of the concret mix or taking "Core" samples if federal money is involved??? My only comment is no comment for safety reasons.
Some roads are just not strong enough for today's big Semi's.. Some are built stronger. Some to autobaun or modified autobaun standards (A stretch of I-75 in Detroit was done that way as a test project. Alas I did not stick around long enough to find out how well it held up).
Eisenhower started the Freeway system.. .And since he left office the roads have gone to POT(holes) in many states.
I don't know what you mean by surprise inspections.
One - the concrete batching is inspected by a certified plant inspector as it is being batched at the plant, who then signs the batch ticket.
Two - The concrete is tested by a certified testing inspector at the site of the work as it comes out of the truck during the pour; who then signs the testing form.
Three - the concrete is inspected by a certified inspector as it is being formed, placed, finished, cured, etc. Who fills out and signs his report daily.
Don't know what you mean by "Prohibited surprise inspections". Where in the process is the "surprise" going to occur?
As far as coring the pavement, I'll direct you to the MDOT standard specifications for construction, Section 602.03.O
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