[Attention Surplus Disorder]

I’d like an explanation of how one can increase the thickness (not just the thickness, but the structural strength implied by the thickness) of poured concrete roadway/trafficway without tearing the whole freaking thing out and rebuilding it.

(Hint: I already know the answer)

[Eric in the Ozarks]

Ground penetrating radar ?

[Steve Newton]

I don’t think you can.

[winodog]

How do you pour that much mud without someone noticing its one and a half inch short.

[tanknetter]

I’d like an explanation of how one can increase the thickness (not just the thickness, but the structural strength implied by the thickness) of poured concrete roadway/trafficway without tearing the whole freaking thing out and rebuilding it.

I believe that something similar happened with the Herndon/Monroe transit garage/park&ride in Fairfax VA. Place was only a few years old and needed major rework including drainage enhancements, resurfacing (and then overlaying with this weird rubberized compound) and installation of a LOT of very large steel I-beams.

I lived through that mess the Spring and Summer it was going on. They were shutting the garage down 1/4 at a time over the course of four to six months.

[philman_36]

Add two inches of asphalt.

[LoneRangerMassachusetts]

I’d like an explanation of how one can increase the thickness (not just the thickness, but the structural strength implied by the thickness) of poured concrete roadway/trafficway without tearing the whole freaking thing out and rebuilding it.

More concrete on top alone will increase the slab strength if the bottom steel is in tension. If the top steel is in tension, they will need to add a layer of top steel in the topping. They can make the correction by scarifying the top surface. Add a bonding agent. Add a layer of top steel where needed. Place a topping concrete overlay.

[sauropod]

Ultra-high performance concrete.