 ... as follows : Two ordinary glass tumblers of the same size are filled to the brim, one with the dry sand to be tested and the other with water. The water is then poured carefully from the one glass into the sand in the other until it reaches the point...  Annual Report - 52 ページFlorida Geological Survey 著 - 1908全文表示 - この書籍について
 | United States. Bureau of Public Roads - 1901 - 880 ページ
...ordinary glass tumblers of as nearly as possible the same size are tilled to the brim, one with the dry sand to be tested and the other with water, The...calculation will reduce this to percentage volume. Practical experience has shown that the tendency is to calculate too little rather than too much sand... | |
 | George Frederick Mitchell - 1908 - 768 ページ
...sand is as follows : Two ordinary glass tumblers of the same size are filled to the brim, one with the dry sand to be tested and the other with water. The...calculation will reduce this to percentage volume. Practical experience has shown that the tendency is to calculate too little rather than too much sand... | |
 | Florida Geological Survey - 1908 - 130 ページ
...Agriculture, p. 10, is as follows : ''Two ordinary glass tumblers of the same size are filled to the brini, one with dry sand to be tested and the other with...sand-clay road, or so nearly the proper admixture that it will serve that purpose satisfactorily. Fortunately for Florida, almost every county is supplied... | |
 | geo. wm. hill - 1908 - 782 ページ
...sand is as follows: Two ordinary glass tumblers of the same size are filled to the brim, one with the dry sand to be tested and the other with water. The...calculation will reduce this to percentage volume. Practical experience has shown that the tendency is to calculate too little rather than too much sand... | |
 | William Hill - 1908 - 758 ページ
...sand is as follows: Two ordinary glass tumblers of the same size are filled to the brim, one with the dry sand to be tested and the other with water. The...calculation will reduce this to percentage volume. Practical experience has shown that the tendency is to calculate too little rather than too much sand... | |
 | 1908 - 538 ページ
...was originally full of water can be taken as an approximate measure of the voids in the unit column of sand contained in the tumbler. A simple calculation...sand-clay road, or so nearly the proper admixture that it will serve that purpose satisfactorily. Fortunately for Florida, almost every county is supplied... | |
 | Halbert Powers Gillette - 1910 - 1902 ページ
...ordinary glass tumblers of as nearly as possible the same size are filled to the brim, one with the dry sand to be tested and the other with water. The...calculation will reduce this to percentage volume. In the construction of sand-clay roads two distinct conditions are likely to be met : The road may... | |
 | Samuel Washington McCallie - 1910 - 46 ページ
...issued by this furvey. 1. Farmer's Bulletin No. 311, US Department of Agriculture, page 10. 34 proximate measure of the voids in the unit volume of sand contained...calculation will reduce this to percentage volume." These various tests are only given to enable the road constructor in the beginning to get a rough idea... | |
 | 1910 - 48 ページ
...Farmer's Bulletin No. 311, US Department of Agriculture, page 10. 34 PUBLIC ROADS OF GEORGIA proximate measure of the voids in the unit volume of sand contained...calculation will reduce this to percentage volume." These various tests are only given to enable the road constructor in the beginning to get a rough idea... | |
 | 1910 - 514 ページ
...filled to the overflow point. The volume of water poured from the glass can be taken as an approximation of the voids in the unit volume of sand contained in the tumbler. A short calculation will reduce this to the percentage volume. The tendency is to calculate too little... | |
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