Tom Gauthier wrote:I don't think the drywall will stand up to the weight of the fill. The weight pushing down would blow out the drywall at the bottom. I'm not sure about the wire in the wall, but there may be a problem if it's encased in clay/sand. I think another problem might be that the infill could never dry.
The best suggestions have been to add a thermal mass to the exterior of the wall, but I can understand if you not want to do that. If you do, the thicker the better. I don't think tile has enough mass to be very effective.
But specifically to answer you original question, I don't think the drywall would hold up to an infill of wet clay, sand, and gravel.
William Bronson wrote:Is this an exterior wall?