What type of matrix should be used on a military runway used by C130 aircraft?
I believe C-130 was designed to be operated from unprepared runways for takeoffs and landings. One of the reasons for India to buy it and deploy it to forward operating base.
Depends. Dirt runways can be prepared through dust control by water.
Diego Garcia has been at least since the seventies had the coral reefs mined for aggregate.
Keep in mind that the matrix doesn't have to be high quality, it just has to last until the anticipated end of the war without excessive maintenance costs.