nemfrog: “Larges stones with voids fill with sand (above),” and “large stones
nemfrog: “Larges stones with voids fill with sand (above),” and “large stones with voids filled with small stones and sand (below).” A treatise on concrete, plain and reinforced. 1911.Internet Archive This is also a to-do list sorting advice. You do the big things first and then scatter the small things in the gaps left by the big things. -- source link