Report of InvestigationsU.S. Department of the Interior, Bureau of Mines, 1919 - Mineral industries |
From inside the book
Results 1-5 of 100
Page 4
... given in table 1. The unmodified boxes all failed while those made with modified sulfur have contained water for 2 years without any signs of cracking . Sulfur concrete boxes DC PD modifier , Results after filling with water TABLE 1 . 1 ...
... given in table 1. The unmodified boxes all failed while those made with modified sulfur have contained water for 2 years without any signs of cracking . Sulfur concrete boxes DC PD modifier , Results after filling with water TABLE 1 . 1 ...
Page 11
... given in table 4 , it is apparent that less modified sulfur was required to obtain optimum mixtures . The 1 - day strength of the modified sulfur concretes was generally not as high as those for sulfur concrete in blends 1 to 6 which ...
... given in table 4 , it is apparent that less modified sulfur was required to obtain optimum mixtures . The 1 - day strength of the modified sulfur concretes was generally not as high as those for sulfur concrete in blends 1 to 6 which ...
Page 14
... given in table 6 along with their calculated voids content . The voids content of the various mixes was generally lowest for unmodified sulfur concretes . The optimum strength values for modified sulfur concretes were for those mixtures ...
... given in table 6 along with their calculated voids content . The voids content of the various mixes was generally lowest for unmodified sulfur concretes . The optimum strength values for modified sulfur concretes were for those mixtures ...
Page 15
... given in table 7. The values shown are the initial compressive strength value of the mixture and the compressive strength at 28 days for both the dry control samples and the wet room samples . The percent increase or decrease of ...
... given in table 7. The values shown are the initial compressive strength value of the mixture and the compressive strength at 28 days for both the dry control samples and the wet room samples . The percent increase or decrease of ...
Page 18
... given in table 8 . In general the flexural strengths of the unmodified sulfur concretes compared to their compressive strengths were in the range of what would be expected with regular Portland concretes . The flexural strengths of most ...
... given in table 8 . In general the flexural strengths of the unmodified sulfur concretes compared to their compressive strengths were in the range of what would be expected with regular Portland concretes . The flexural strengths of most ...
Common terms and phrases
aluminum bolt BuMines RI Bureau of Mines burning velocity calculated cell chloride coal coalbed combustion composition compressive strength concentration curves degasification density depth of cut determined dicyclopentadiene drilling dump leach effect electrodes Electromotive force eluate energy Engineering Library enthalpy equation experimental explosions FeCl3 flame front flame speed flotation formation gas flow Gibbs free energy H₂SO heat hole ignition ilmenite inches increase inflatable stoppings INTERIOR investigation iron iron chloride kcal kiln kpsi loading Mary Lee MBOB measured metal methane microcline mixture modified sulfur obtained oxide particles pellets percent phase PNCL pressure radius Raney nickel ratio reaction Report resin rock sample shown in figure slimes solder solution specimens steels stope sulfur concretes surface synthetic leach liquor temperature tests thick tion traveltimes tube U.S. Bureau unburned UNIVERSITY OF MICHIGAN Vacutainers values venting WALKER COUNTY zeta potential
Popular passages
Page 3 - An acid plant was installed in 1929 to treat •Underlined numbers in parentheses refer to items in the list of references at the end of this report.
Page 3 - Needless to say, this contractor did not submit a bid. "(10) (Reference to specific trade names is made for identification only and does not imply endorsement by the Bureau of Mines...
Page 10 - API, is pumped to storage. 3Reference to specific makes or models of equipment is made to facilitate understanding and does not imply endorsement by the Bureau of Mines.
Page 11 - Haynes, WP, JJ Elliott, AJ Youngblood, and AJ Forney. Operation of a Sprayed Raney Nickel Tube-wall Reactor for Production of a High-Btu Gas.
Page 34 - Prediction of Laminar Flow and Heat Transfer in Helically Coiled Pipes,
Page 9 - Kissell, FN. CM McCulloch, and CH Elder. The Direct Method of Determining Methane Content of Coalbeds for Ventilation Design.