Report of InvestigationsU.S. Department of the Interior, Bureau of Mines, 1919 - Mineral industries |
From inside the book
Results 1-5 of 100
Page 8
... figure 3. Mixtures of the individual blends with varying amounts of sulfur were made and 3- by 6 - inch compressive ... FIGURE 2. Sulfur concrete test specimen molds . FIGURE 5. Unmodified concrete cylinders after aging in humid conditions.
... figure 3. Mixtures of the individual blends with varying amounts of sulfur were made and 3- by 6 - inch compressive ... FIGURE 2. Sulfur concrete test specimen molds . FIGURE 5. Unmodified concrete cylinders after aging in humid conditions.
Page 23
... figure 8 , and after 11 - month service it has shown no signs of cracking or deterioration . Sulfur Concrete Wall ... FIGURE 9.- Equipment for mixing sulfur conctrete . Each section. FIGURE 8. Sulfur concrete paving slab . TABLE 11 ...
... figure 8 , and after 11 - month service it has shown no signs of cracking or deterioration . Sulfur Concrete Wall ... FIGURE 9.- Equipment for mixing sulfur conctrete . Each section. FIGURE 8. Sulfur concrete paving slab . TABLE 11 ...
Page 24
FIGURE 9.- Equipment for mixing sulfur conctrete . Each section consisted of a footer and a wall made with the same blend of sulfur concrete . The material was mixed in the heated mortar mixer shown in figure 9. Three batches of 300 lb ...
FIGURE 9.- Equipment for mixing sulfur conctrete . Each section consisted of a footer and a wall made with the same blend of sulfur concrete . The material was mixed in the heated mortar mixer shown in figure 9. Three batches of 300 lb ...
Page 25
FIGURE 10. Pouring sulfur concrete footer . · - FIGURE 12. Unmodified sulfur concrete wall section . · All. FIGURE 11. Retaining wall of sulfur concrete sections . FIGURE 2.- Isometric sketch of instrumented portion of stope . 25.
FIGURE 10. Pouring sulfur concrete footer . · - FIGURE 12. Unmodified sulfur concrete wall section . · All. FIGURE 11. Retaining wall of sulfur concrete sections . FIGURE 2.- Isometric sketch of instrumented portion of stope . 25.
Page 4
... Figure 2 is an isometric sketch of such a stope . An actual stope is long com- pared to its width ; therefore , variations in strain along the length of the stope are negligible . Stope - wall displacements are thus assumed to occur ...
... Figure 2 is an isometric sketch of such a stope . An actual stope is long com- pared to its width ; therefore , variations in strain along the length of the stope are negligible . Stope - wall displacements are thus assumed to occur ...
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.