 | Walter F. Ballinger, Emile George Perrot - 1909 - 84 páginas
...coating over cement floors is to first lay a concrete base, not less than two inches thick, composed of one part of cement, two parts of sand and four parts of stone or clean cinders; over this base the top coat is laid in the same manner as the top coat for... | |
 | Engineers' Society of Pennsylvania - 1909 - 906 páginas
...through a one and one-half inch ring. All concrete above springing line of arches shall be composed of one part of cement, two parts of sand and four parts of stone not larger than will pass through a three-quarter inch ring. All quantities are to be measured... | |
 | 1909 - 474 páginas
...the exact width required, and into this the concrete may be tamped (Fig. 98). A good proportion is one part of cement, two parts of sand, and four parts of stone, for natural cement. The thickness of the footing should be one-quarter of its width (provided... | |
 | 1910 - 128 páginas
...receiving the slops is made of concrete. The mixture should be in the proportion of 1 :2 ;4, that is, one part of cement, two parts of sand, and four parts of broken stone. The thickness of the walls should be four inches. The side walls should be vertical and the bottom... | |
 | University of Missouri. Engineering Experiment Station - 1910 - 858 páginas
...receiving the slops is made of concrete. The mixture should be in the proportion of i :2 14, that is, one part of cement, two parts of sand, and four parts of broken stone. The thickness of the walls should be four inches. The side walls should be vertical and the bottom... | |
 | 1910 - 424 páginas
...the exact width required, and into this the concrete may be tamped (Fig. 9S). A good proportion is one part of cement, two parts of sand, and four parts of stone, for natural cement. The thickness of the footing should lie one-quarter of its width (provided... | |
 | Ontario. Legislative Assembly - 1911 - 860 páginas
...broken stone. (d) Arches from the springing line, floor slabs, beams, columns, and parapet, walls: One part of cement, two parts of sand, and four parts of broken stone. 41. The proportioning of materials may be varied by the engineer from the foregoing, on the basis of... | |
 | 1912 - 1040 páginas
...United States Treasury. These vaults were waterproofed by oil-mixed concrete mixed in the proportions of one part of cement, two parts of sand, and four parts of gravel, together with ten per cent, of oil. They have remained dry under very trying conditions. These... | |
 | Ernest Robert Graham - 1913 - 306 páginas
...purposes shall be mixed in the following proportions : Class "A" concrete shall be composed by volume of one part of cement, two parts of sand and four parts of broken stone or gravel. Class "B" concrete shall be composed of one part of cement, two and one-half parts of sand... | |
 | American School of Correspondence, Chicago, F. W. Fitzpatrick - 1913 - 148 páginas
...diagonal plane shall be one-fiftieth of the ultimate .compressive strength. (g) For a concrete composed of one part of cement, two parts of sand, and four parts of broken stone, the allowable unit stress for adhesion per square inch of surface of imbedment shall not exceed the... | |
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... in the proportion of one part of cement, two parts of sand and four parts of stone or gravel, or in such proportion as to produce a maximum density. 
