Report of InvestigationsU.S. Department of the Interior, Bureau of Mines, 1919 - Mineral industries |
From inside the book
Results 1-5 of 100
Page 6
... Samples A standard procedure was developed for preparing test specimens for strength measurements . This was necessary to insure sound samples for com- paring the properties of various sulfur - concrete mixtures . Sulfur concrete cast ...
... Samples A standard procedure was developed for preparing test specimens for strength measurements . This was necessary to insure sound samples for com- paring the properties of various sulfur - concrete mixtures . Sulfur concrete cast ...
Page 7
... samples additional material was added to the top of the beam surface as shrinkage occurred to obtain a level surface . The purpose of preheating the sample molds and tamping rods was to prevent segregation of sulfur in the test ...
... samples additional material was added to the top of the beam surface as shrinkage occurred to obtain a level surface . The purpose of preheating the sample molds and tamping rods was to prevent segregation of sulfur in the test ...
Page 9
... sample weight . 2Weight ratio of sand and 3 / 8 - inch rock . Metallographic Examination of Sulfur - Bonded ... Samples of each type were prepared using construction sand and desert blow sand . The samples were mounted in epoxy ...
... sample weight . 2Weight ratio of sand and 3 / 8 - inch rock . Metallographic Examination of Sulfur - Bonded ... Samples of each type were prepared using construction sand and desert blow sand . The samples were mounted in epoxy ...
Page 13
... samples were observed after employing Malhotra's filling technique . To insure sound test samples , provisions were made to cast longer cylinders and the top 3 inches of concrete were cut off and discarded in order to obtain standard ...
... samples were observed after employing Malhotra's filling technique . To insure sound test samples , provisions were made to cast longer cylinders and the top 3 inches of concrete were cut off and discarded in order to obtain standard ...
Page 15
... samples and the wet room samples . The percent increase or decrease of compressive strength after 28 days aging is shown . The intermediate sample values generally fell on a straight line plot drawn from the original to the 28 - day ...
... samples and the wet room samples . The percent increase or decrease of compressive strength after 28 days aging is shown . The intermediate sample values generally fell on a straight line plot drawn from the original to the 28 - day ...
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.