Go to the link below and it will have a explanation, and pointers on load limits, and HMA's (Hot Mix Asphalt). It does also state that monitoring the asphalt placement is a good idea, to ensure the asphalt supplier is within the guidelines of the particular client's needs...
Our company, location NH, still uses the 6X12. The reason being, we only have a psi machine for the 6X12, and would have to cap both ends of a 4X8, if we were to test it. A machine does exist, and a chart also exists, for testing the 4X8, and calculating the total lbs, and total psi.
1st I would like to say that VAD gave very good advice. 2nd, while I was reading your thoughts on the vibratory methods you were tossing around, I was envisioning the lab sieve, which works on a similar fashion. The material in put in the top of the sieves, which has the smallest sieve size...
Frozen soil is a big no no. The soil must be thawed or non frozen. You can do winter construction, but you must heat the soils that have backfilled and compacted. Otherwise any soil that contains frost or ice must be removed, whether it be now or in the spring. Any construction soil utilized...
A engineering type lab may be able to determine sulfides in a specific lab test. Shale can be used as a fill layer, but, should be choked with a sandy layer. It is more preferable to mix the shale with sand, to get a good fill. Your engineer assigned to the sight could approve the use and...
I know in North country, fly ash and any type of ash additive is the last thing they would want to use. They want to stay low on the use, due to it's toxicity. Any rate, sand alone is a very dry material, that is hard to acheive specified denisities on. You have to have the right moisture...
A 3" total thickness would suffice the weight. Typically a 1" binder course is laid. Then you would put your 2" wearing course. In your case with the wieght of the trucks, a 2" binder would be more appropiate.
