Carbonate, lightweight and sand-lightweight aggregate concrete, members 8 by 8 (203 mm by 203 mm) or greater (not including sandstone, granite and siliceous g"ravel)
Carbonate, lightweight and sand-lightweight aggregate concrete, members 8 by 8 (203 mm by 203 mm) or greater (not including sandstone, granite and siliceous g"ravel)<br>