A treatise on concrete, plain and reinforced : materials, construction, and design of concrete and reinforced concrete; 2nd ed. . pering on the outside to a width of 7 inches at the top, with itsinside face vertical. At least one inch of the face and of the surface con-sists of mortar or granolithic, like thewearing surface of the walk. A typicalsidewalk and curb is shown in Fig. back of the curb is formed against atemporary plank. For the face mold, a12-inch planed plank is set on edge tothe proper batter and may be held inplace by driving stakes about 4 inchesout from it, and nailing
A treatise on concrete, plain and reinforced : materials, construction, and design of concrete and reinforced concrete; 2nd ed. . pering on the outside to a width of 7 inches at the top, with itsinside face vertical. At least one inch of the face and of the surface con-sists of mortar or granolithic, like thewearing surface of the walk. A typicalsidewalk and curb is shown in Fig. back of the curb is formed against atemporary plank. For the face mold, a12-inch planed plank is set on edge tothe proper batter and may be held inplace by driving stakes about 4 inchesout from it, and nailing strips from the top of these stakes to the top edge of theplank, so that they can be knocked up and the plank loosened without disturb-ing the face of the curb. When readyto place the concrete for the curb, whichshould be laid before the layer of con-crete underlying it has set, a i-inch board is placed on edge just insideof the 12-inch plank, with occasional thin strips or wedges betweenit and the plank. The coarse concrete of the curb is then placed backof this board, and thoroughlv rammed so that its surface is one inch. Fig. 189.—Dot Roller.(See p. 601.) *Sperifications for ij SIDEWALKS AND BASEMENT FLOORS 603 below the top of the forms, and when sufficiently hard, the i-inch boardis drawn up from the face, and with the aid of a trowel its place is filledwith wearing surface material. The outside form is generally allowed over night, and in the morning the outside surface is floated. Aruled joint like that between the blocks is formed between the curb andthe remainder of the walk. A metal corner is sometimes laid in the exposed edge of the curb toprotect it from wear. Combined Curb and Gutter. One of the advantages of a concrete walklies in the ease with which it is adapted to special construction. A gutter5 or 6 inches thick, with a pitch corresponding to the crown of the street,is often laid in combination with the curb. It is underlaid with a porous
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1912
