Concrete in the country / [American Cement Company]. (1910)
American Cement Company · Association of American Portland Cement Manufacturers · leaf 52
the wooden sill for the granary uprights to the concretefloor, insert %-inch bolts heads down or strap irons bent like capital Z s at thenecessary points in the green concrete of foundation. The bolts are long enoughto pass through holes in the silland to receive nuts and washers.The straps are… … 53