I thought of stone walling as an expensive antique building method until I spoke with Reo Kaneko, a civil engineer who over the past 14 years has become an advocate for this time-tested craft.

While there are several benefits to concrete paving, including both cost-effectiveness and durability, ultimately, natural stone paving is hard to beat. But what is it that the experts love so much?

If that means removing some of the larger pieces of concrete, then they should probably go. The recommended 4-5 inches of concrete should be a 4000 psi mixture at minimum.