 | James Smith - Industrial arts - 1815 - 684 pages
...most be added, so that the terras shall be by weight one-sixth part of the weight of the sand. When a cement is required of the finest grain, or in a fluid form, so that it may be applied with a brush, for the purpose of smoothing and finishing the stronger crustaceous works, or for washing walls to... | |
 | Thomas Curtis - Aeronautics - 1829 - 842 pages
...added, so that the terras shall be by weight one-sixth part of the weight of the sand. When such a cement is required of the finest grain, or in a fluid...earthy substance, may be used in the place of sand ; but in a quantity smaller, as the flint or i ii ii ะป powder is finer ; so that the flint-powder,... | |
 | Edward Shaw - Masonry - 1846 - 342 pages
...terras must be added, so that the terras shall be one sixth part of the weight of the sand. When such a cement is required of the finest grain, or in a fluid form, so that it may be applied with a brush, flint-powder, or the powder of any quartzose or hard earthy substance, may be used in the place of... | |
 | James G. Austin - Cement - 1871 - 208 pages
...must be added, so that it shall ba (by weight) one-sixth part of the weight of the sand. When such a cement is required of the finest grain, or in a fluid...applied with a brush, flint powder, or the powder of any quartoze or hard earthy substance may be used in the place of sand, but in a quantity smaller, as the... | |
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... thereof, an equal measure of powdered terras is to be used ; and, if the sand employed be not of the coarsest sort, more terras must be added, so that the terras shall be one-sixth part of the weight of the sand. 