Miracle concrete: the great modern industry (1909)
Miracle Pressed Stone Co. · Miracle Pressed Stone Co. · leaf 118
hly dry and then wet, so thatwhen tamping, the moisture will appear at the top. The topcoat, or wearing surface, should be one-half inch in thicknessand consist of one part of best Portland cement and two partsof clean, sharp, screened sand. The tile should be thoroughlytamped and should be allowed… … 24-inch Mold. LAYING. After the ground has been leveled off and tamped to aneven surface three to four inches below the proposed finishedwalk, place a layer of mortar thereon two inches in thickness,composed of three parts of clean, sharp sand to one part ofHydraulic or Natural Cement, mixed quite…