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A Laboratory Investigation Of Mineralogical, Chemical And Physical Properties Of Limestone Aggregates, James L. Young Jr., James H. Havens, L. E. Gregg Dec 1948

A Laboratory Investigation Of Mineralogical, Chemical And Physical Properties Of Limestone Aggregates, James L. Young Jr., James H. Havens, L. E. Gregg

Kentucky Transportation Center Research Report

The project described in this report represents one phase of comprehensive research with all types of aggregates for highway paving mixtures in Kentucky. It was designed to show the fundamental properties of limestones which determine their suitability for this type of use -- particularly their so-called durability. For this reason, emphasis was placed on analysis of the intrinsic properties of the aggregates themselves rather than analysis of procedures or test methods, such as freezing and thawing.


Separation, Fractionation And Mineralogy Of Clays In Soils, James H. Havens, James L. Young Jr., Robert F. Baker Dec 1948

Separation, Fractionation And Mineralogy Of Clays In Soils, James H. Havens, James L. Young Jr., Robert F. Baker

Kentucky Transportation Center Research Report

This paper describes a working method for separation, fractionation and identification of colloid and colloidal clay minerals in soils. Technical information pertains to super-centrifugation, electron-microscopy and X-ray diffraction. On the basis of these techniques, twenty-two samples have been investigated in conjunction with a soil stud of pumping pavements.

Soils were first dispersed and separated by gravity sedimentation. Fractionation was accomplished by controlled super-centrifugation. The separated fractions were purified and then analyzed by X-ray diffraction. Computed size fractions were checked by shadow castings and lineal dimensions on electron micrographs.

Results include identification of the mineral or minerals present and the properties …


Tests On Cold Formed Steel Studs For The American Iron And Steel Institute, American Iron And Steel Institute Oct 1948

Tests On Cold Formed Steel Studs For The American Iron And Steel Institute, American Iron And Steel Institute

CCFSS Library (1939 - present)

1. SCOPE OF THIS REPORT. In connection with a prospective revised Second Edition of the Specifications the question has been raised as to the reliability of Section 3.7, Combined Axial and Bending Stress. This stipulation at the time wa.s adopted from the AISC Specifications without detailed investigation. It appeared pertinent, therefore, to subject this requirement to a detailed analysis for purposes of verification and possible improvement. The present Report gives an abbreviated account of this analysis and presents numerical and graphical data sufficient to judge the reliability of Section 3.7.


An Investigation Of Soil-Cement For Use In A Parking Area, William Gus Koulas Jun 1948

An Investigation Of Soil-Cement For Use In A Parking Area, William Gus Koulas

Civil Engineering ETDs

The writer has confined his studies to the use of soil-cement for a parking area located at the State Fair Grounds in Albuquerque, New Mexico. This investigation was made with the expectation of using the existing soil with a minimum amount of cement as recommended for field use in the construction of soil-cement into a durable, serviceable and economical paved area.


Geology And Geological Structure Of The Alberta And Saskatchewan Plains, William E. Topley Jun 1948

Geology And Geological Structure Of The Alberta And Saskatchewan Plains, William E. Topley

Bachelors Theses and Reports, 1928 - 1970

Alberta, responsible for ninety per cent of Canada's output, had, by 1947 entered into her fifth year of production decline. Only ten per cent of Canada's oil requirements were secured from home fields. Ninety per cent had to be imported, mainly from the United States. How long could imports be maintained on present levels? During the year, the United States had started rationing; in one sector of its domain. Would this become general? If so, what was the answer for Canada?


The Fort Union Formation Of Montana And Adjacent Areas, Charles Christman May 1948

The Fort Union Formation Of Montana And Adjacent Areas, Charles Christman

Bachelors Theses and Reports, 1928 - 1970

The Fort Union formation is one of the most import­ant and best known geologic formations of the northern Great Plains, and is found lying almost horizontal at the surface over large areas in this region.


Manganese Oxide Deposits Near Butte And Development Since 1942, Emmett M. Gilmore May 1948

Manganese Oxide Deposits Near Butte And Development Since 1942, Emmett M. Gilmore

Bachelors Theses and Reports, 1928 - 1970

The manganese minerals occur in the peripheral zone of the Butte district with quartz in veins, which at depth contain galena and sphalerite closely associated with silver-bearing minerals. The manganese oxides are all oxidation products formed by weathering of primary rhodochrosite or rhodonite.


Concentration Of Manganese Dioxide From Philipsburg, Montana, W. M. Mcauliffe May 1948

Concentration Of Manganese Dioxide From Philipsburg, Montana, W. M. Mcauliffe

Bachelors Theses and Reports, 1928 - 1970

Imports of manganese ore probably supply a major proportion of the needs of the United States. Domestic production is reported to be higher than pre-war levels, but does not equal that of the peak production year of 1943. In 1946, the Anaconda Copper Mining Company ac­counted for 90 percent of the total shipments of mangan­ese nodules, and this company is the largest producer of domestic metallurgical ore in the United States.


The Continuous Electrodeposition Of Manganese, Joseph W. Joyce May 1948

The Continuous Electrodeposition Of Manganese, Joseph W. Joyce

Bachelors Theses and Reports, 1928 - 1970

The object of this research was to produce a workable electrolytic cell for the continuous deposition of manganese from aqueous sulphate solutions and determine the critical factors in its oper­ation.


Cold-Applied Mastic-Type Crack And Joint Filler Compound, L. E. Gregg May 1948

Cold-Applied Mastic-Type Crack And Joint Filler Compound, L. E. Gregg

Kentucky Transportation Center Research Report

For the past year the Research Laboratory has been investigating joint filling compounds for concrete pavements with the object of determining whether extenders of one type or another placed in the hot-poured rubber-asphalt filler could reduce the cost without reducing the efficiency of these materials. Also included in the investigation was a search for new or different materials that might serve the same purpose but have properties that would make them more desirable or less expensive than the rubber-asphalt fillers. Because of the inconvenience and danger involved in the heating process to 450°F, and also the difficulty of controlling the …


A Discussion Of The Geology And An Isopach Map Of The Pennsylvanian System In Wyoming And Adjacent Areas, B. R. Alto May 1948

A Discussion Of The Geology And An Isopach Map Of The Pennsylvanian System In Wyoming And Adjacent Areas, B. R. Alto

Bachelors Theses and Reports, 1928 - 1970

Pennsylvanian strata in Wyoming and adjacent areas have been the subject of much work and discussion. Most of the work has been due to the economic importance of the system as an oil producer in this region. Oil production from strata of Pennsylvanian age is rather recent history; and therefore, much of the available information is local­ized and incomplete.


The Physiographic History Of Western Montana And Northwestern Idaho, John R. Kavanagh May 1948

The Physiographic History Of Western Montana And Northwestern Idaho, John R. Kavanagh

Bachelors Theses and Reports, 1928 - 1970

Millions of years of physiographic changes have conditioned us to the fact that our present drainage is a temporary feature. Rivers once flowing opposite to their present direction is not an unusual condition for physiographers to suggest.


An Isopach Map And A Discussion Of The Permian In Wyoming And Adjacent Areas, Willard Leskela May 1948

An Isopach Map And A Discussion Of The Permian In Wyoming And Adjacent Areas, Willard Leskela

Bachelors Theses and Reports, 1928 - 1970

The accelerated post-war demand for petroleum products with resultant high prices and dwindling reserves has spurred producers to an extensive search for new fields and for ad­ditional production in known fields. Exploration and discov­ery is dependent on the collection and correlation of vast amounts of data both in the field and that found in liter­ature.


Roasting And Leaching Of Montana Chromite, Jerry D. Murphy May 1948

Roasting And Leaching Of Montana Chromite, Jerry D. Murphy

Bachelors Theses and Reports, 1928 - 1970

The United States, although the leading consumer of chromite, depends almost entirely on imports for its supply. Domestic production of chromite is limited, because high-grade imported ore is plentiful and inexpensive in normal times. There are several large deposits of chromite in the United States, representing millions of tons of low grade ore. These deposits form a strategic reserve that must be used in time of national emergency.


A Mineral Dressing Study Of The U.S. Grant Ore, John Emmett Murphy May 1948

A Mineral Dressing Study Of The U.S. Grant Ore, John Emmett Murphy

Bachelors Theses and Reports, 1928 - 1970

This investigation concerns the development of a satis­factory method or extracting or concentrating gold and silver from the ores of the U. S. Grant Mine. The choice between applying an extractive process and one by which the valuable mineral constituents are concentrated depends on more than one factor.


Sulfatizing Roasting Of A Copper Sulfide Ore, Walter D. Finnegan May 1948

Sulfatizing Roasting Of A Copper Sulfide Ore, Walter D. Finnegan

Bachelors Theses and Reports, 1928 - 1970

At present copper sulfide ores are recovered by pyrometallurgical processes. While the recovery of cop­per from sulfide ores by hydrometallurgical means has long been considered attractive, the impurities, low re­covery and mechanical difficulties have kept this process from becoming commercial.


The Drainage Problem In The Lewiston Area, Utah, Sterling Davis May 1948

The Drainage Problem In The Lewiston Area, Utah, Sterling Davis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Often where water is artificially applied to land, means must be provided for removal of some of this water. Too much water is just as bad as too little. The increased use of irrigation water in Utah has caused an increased need for drainage. Some irrigated lands are poorly drained. With high water table, yield of crops has been materially decreased, and with present drainage methods only a part of possible production had been attained.


Geology Of Montana, Stanley G. Olson May 1948

Geology Of Montana, Stanley G. Olson

Bachelors Theses and Reports, 1928 - 1970

A vast amount of information has been published by many workers on particular features of the geology of the state of Montana, as well as on local geology of many smaller divi­sions. However, a satisfactory summary of the geology in general, which would include all phases of geology as they apply to the greater area of the entire state, has not been published.


Sandstones Of The Lance And Fort Union Formations, Alan G. Conner May 1948

Sandstones Of The Lance And Fort Union Formations, Alan G. Conner

Bachelors Theses and Reports, 1928 - 1970

The Fort Union and Lance formations are widespread terrestrial sediments exposed in Montana, North Dakota, South Dakota, Wyoming, and Canada. Their stratigraphic position, especially that of the Lance, has long been in doubt, and has provoked much controversy among geologists.


Flotation Concentration Of A Montana Lead-Zinc-Silver-Ore, Grover W. Gregson May 1948

Flotation Concentration Of A Montana Lead-Zinc-Silver-Ore, Grover W. Gregson

Bachelors Theses and Reports, 1928 - 1970

The Mike Horse mine, in the Huddelston mining district, is fifty-two miles northwest of Helena, Montana. The mine was discovered in 1898 by Joseph Heitmiller. There was only minor production from the date of discovery until 1915; the main drawback being lack of good road.


The Geology And Mineral Deposits Of British Columbia, John A. Downing May 1948

The Geology And Mineral Deposits Of British Columbia, John A. Downing

Bachelors Theses and Reports, 1928 - 1970

The province of British Columbia, with an area of 359,279 square miles, includes a large part of the Canadian Cordillera that is the western mountains of Canada. It is the leading province of Canada in the production of lead, zinc, and silver, and third among the provinces in the output of gold, copper, and coal.


Karst Kamp Asbestos Deposits Gallatin County, Montana, Thomas L. Wilson May 1948

Karst Kamp Asbestos Deposits Gallatin County, Montana, Thomas L. Wilson

Bachelors Theses and Reports, 1928 - 1970

Karst Kamp, a southwestern Montana recreation re­sort, is 32 road miles south of Bozeman on the east bank of the Gallatin River in a narrow V-shaped valley flanked on the west by the rugged Madison mountain range and on the east by the equally rough Gallatin range. The asbestos deposit itself lies approximate­ly one-half mile northwest of the ranch on a heavily timbered "Al­pine-like" slope nearly 1200 feet above the floor of the valley.


Geology Of The Lost Creek-Modesty Creek Area Deerlodge County, Montana, Howard B. Nickelson, Robert L. Pott May 1948

Geology Of The Lost Creek-Modesty Creek Area Deerlodge County, Montana, Howard B. Nickelson, Robert L. Pott

Bachelors Theses and Reports, 1928 - 1970

In 1915 the United States Geological Survey published a folio by Calkins and Emmons on the geology of the Philipsburg Quadrangle, which ad­joins the area now under study to the west. Geology of this portion of Montana had not been mapped previously; consequently the purpose of this thesis is to make a geological reconnais­sance of the stratigraphy and structure of the area.


A Study Of The Action Of Various Energizers In The Carburization Of Steel, William N. Warren May 1948

A Study Of The Action Of Various Energizers In The Carburization Of Steel, William N. Warren

Bachelors Theses and Reports, 1928 - 1970

The object of casehardening is to produce articles of steel having a tough or ductile interior and a hard sur­face. Quenching produces a surface somewhat harder than the interior, but in order to obtain a high surface hard­ness, the percentage of alloying elements in the steel must be raised to such an extent that the core or central por­tion becomes hard and brittle also.


A Study Of The Diffusion Of Electroplated Coatings In The Solid State., Michael R. Writt May 1948

A Study Of The Diffusion Of Electroplated Coatings In The Solid State., Michael R. Writt

Bachelors Theses and Reports, 1928 - 1970

The term diffusion means an equalization or homogenization of diverse materials. Specifically ap­plied to metals, diffusion is the interchange of atoms. It is, in effect, an invasion of one crystal lattice by the atoms of one or more other crystal lattices. Therefore, the study of diffusion must involve the geometry and physics of crystal lattices as well as their energies.


Leaching Of Low Grade Rhodochrosite, E. D. King May 1948

Leaching Of Low Grade Rhodochrosite, E. D. King

Bachelors Theses and Reports, 1928 - 1970

Although there are many uses for manganese today, none of them approaches its importance as a deoxidizing agent in the manufac­ture of steels. Without manganese the steelmaking in­dustry would be very seriously handicapped. The metal­lurgy of manganese has been developed around the high-grade ores, and unfortunately, our reserves of high-grade ores are very limited.


Geology And Ore Deposits Of The Salt Chuck-Rush And Brown Mine Area Prince Of Wales Island, Alaska, Judson H. Whitman May 1948

Geology And Ore Deposits Of The Salt Chuck-Rush And Brown Mine Area Prince Of Wales Island, Alaska, Judson H. Whitman

Bachelors Theses and Reports, 1928 - 1970

The Salt Chuck, Rush and Brown, and adjacent mines and claims form an area of approximately 15 square miles near the head of Kasaan Bay about 10 miles northwest of the village of Kasaan on Prince of Wales Island in southeastern Alaska. It is an area of moderate relief in which the hills rise from the water’s edge to heights of some 500 feet. Most of the area is covered with dense vegetation and muskeg.


The Drainage Problem In The Draper Area, Utah, Stanley H. Van Orman May 1948

The Drainage Problem In The Draper Area, Utah, Stanley H. Van Orman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

As a rule, in the practice of irrigation, more water is delivered to a project than is used by the plants, evaporated, or removed by natural drainage. It is now generally accepted that, in the West, irrigation and drainage are necessary complementary practices. With comparatively good irrigation practice the efficiency is about 34 percent; that is, approximately one-third or the water is actually used by the crops. With rather poor irrigation practice the efficiency may drop as low as 12 percent.


A Study Of Land Drainage By Pumping From An Experimental Drainage Well In The Delta Area, Utah, Ellaf Arni Olafson May 1948

A Study Of Land Drainage By Pumping From An Experimental Drainage Well In The Delta Area, Utah, Ellaf Arni Olafson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Although it is now generally accepted that, in the west, irrigation and drainage are necessarily complementary practices, the realization has been slow in developing. Recent estimates indicate that about 8 million acres of land under irrigation in the 17 western states require drainage. For most irrigated lands a depth to groundwater of at least five to ten feet is desirable. Very high capital as well as annual maintenance costs would be involved in meeting this minimum requirement with the usual types of tile and open drains. Indeed, in most instances it cannot economically be accomplished. The purpose of this study …


A Study Of The Physical Properties Of Low Tin Solders, Cornelius P. Dwyer Apr 1948

A Study Of The Physical Properties Of Low Tin Solders, Cornelius P. Dwyer

Bachelors Theses and Reports, 1928 - 1970

In 1947, out of the 100,000 long tons of tin con­sumed in the United States, 25,000 tons went into solder. Tin plate took 39,000 tons while babbit, bronze and coll­apsible tubes accounted for approximately 17,000 tons. Solder ranked second to tin plate and required more than the next three major uses combined.