New life for old concrete.

These California designers reused discarded concrete for handsome paths, patios, and garden steps Concrete, in its plain, gray form, lacks the quiet beauty of San Francisco San Francisco (săn frănsĭs`kō), city (1990 pop. 723,959), coextensive with San Francisco co., W Calif., on the tip of a peninsula between the Pacific Ocean and San Francisco Bay, which … Read moreNew life for old concrete.