 | 1885 - 890 pages
...cylinder reaches bed-rock, when the work of laying the concrete begins. The concrete used is a mixture of one part of cement, two parts of sand, and four parts of broken stone. Communication between the interior of the cylinder and the outer air is effected by means... | |
 | George T. Powell - 1888 - 180 pages
..."After laying a fresh bed of concrete, a layer consisting of sand and cement in equal parts about 11-4 inches thick was laid, it was well rammed down and...ramming it until a layer of from 3-4 of an inch to 1 1-4 inches appeared on the surface without any gravel ; this layer was then levelled and smoothed... | |
 | 1889 - 892 pages
...cylinder reaches bed-rock, when the work of laying the concrete begins. The concrete used is a mixture of one part of cement, two parts of sand, and four parts of broken stone. Communication between the interior of the cylinder and the outer air is effected by means... | |
 | 1910 - 432 pages
...Seven-day, fourteen-day, and twenty-eight-day compression tests were made on concrete cubes made of mixtures of one part of cement, two parts of sand, and four parts of broken stone passing through a screen of one and one-half inch mesh, separate tests being made tor... | |
 | Sacramento (Calif.). Citizens' Water Investigation Committee - 1901 - 160 pages
...proportions of the cement, sand and gravel or broken stone used in making the concrete shall be by measure, one part of cement, two parts of sand and four parts of gravel or broken stone. The mixing of the concrete shall be in suitable beds or by machinery, in a manner... | |
 | Citizens' Water Investigation Committee of the City of Sacramento - 1901 - 144 pages
...proportions of the cement, sand and gravel or broken stone used in making the concrete shall be by measure, one part of cement, two parts of sand and four parts of gravel or broken stone. The mixing of the concrete shall be in suitable beds or by machinery, in a manner... | |
 | Citizens' Water Investigation Committee of the City of Sacramento - 1901 - 144 pages
...proportions of the cement, sand and gravel or broken stone used in making the con-crete shall be by measure, one part of cement, two parts of sand and four parts of gravel or broken stone. The mixing of the concrete shall be in suitable beds or by machinery, in a manner... | |
 | Institution of Municipal Engineers (Great Britain) - 1903 - 514 pages
...Reservoir. — The subsoil consists of boulder clay. The walls are constructed of cement concrete composed of one part of cement, two parts of sand, and four parts of shingle. They vary in thickness from 5 feet at the base to 18 inches at the top, and are lined with... | |
 | 1905 - 854 pages
...it must be clean and vary in size from J to 1 inch. For beams, the proportion of concrete shall be one part of cement, two parts of sand, and four parts of broken stone. For floor slabs, the proportion shall be one part of cement, two and one-half parts of... | |
 | 1905 - 874 pages
...it must be clean and vary in size from i to 1 inch. For beams, the proportion of concrete shall be one part of cement, two parts of sand, and four parts of broken stone. For floor slabs, the proportion shall be one part of cement, two and one-half parts of... | |
| |
... 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. 
