Illinois Society of Architects · Chicago · leaf 467
nd not more than ten (10)per cent shall pass a screen having four(4) meshes per linear inch. 3. Mixed Aggregate: Crushed run stone,bank-run gravel or mixture of fine and coarseaggregate prepared before delivery on thework shall not be used. 4. Subbase: Only clean, hard material,such as coarse… … * u#
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
