Civil and Environmental Engineering Commons^™

An Economic Study Of The "C" Factor, David Hunter Robinson

Masters Theses

"After due consideration of the facts and hypothetical conditions enumerated herein, it was decided that this work would be devoted to developing a means of determining the most economical “C” factor to be used; one that will be consistent with ease of operating the plotting machine, the required accuracy of the finished compilation and economy. In other words, the highest value of the "C" factor that will produce results within the accuracy requirements under normal operating procedures.

As a secondary project, it was decided to plot a curve using points determined by analyzing a series of spot readings made at …

Hydrology Of Small Drainage Areas, James Kinchen Searcy

Masters Theses

"Realizing the need for data on small drainage areas the Missouri Highway Commission in 1947 began a cooperative project with the Water Resources Division of the United States Geological Survey which includes the establishment of small area gaging stations and recording rain gages.

The purpose of this investigation is to study some of the data collected in the few years of operation of these small area stations with the aim of testing some of the hydrologic tools useful in the study of larger drainage basins to determine their applicability on small drainage basins. The relationship between the runoff of large …

An Investigation Of End-Anchorage And Performance Of Sr-4 Strain Gages On A Prestressed Concrete Beam, Howard W. Nunez Jr.

Masters Theses

"In recent years there has been brought to the attention of engineers and architects a new medium of construction---prestressed concrete. Reinforced concrete has long been recognized as a satisfactory material for use in the construction of buildings, bridges, highways, tanks and other structures. However, most concrete designers will concede that this material has many drawbacks. For instance, in a simple beam of rectangular cross-section, roughly only one half or the concrete is relied on to resist compressive forces. The tensile strength of the concrete is considered to be zero, and steel bars or rods must be inserted to carry the …

Serrated Wire For Welded Wire Fabric, Homer F. Thompson

Masters Theses

"The Wire Reinforcement Institute, Inc., is concerned, primarily, with gathering data and technical information to substantiate the following:

1. That welded wire fabric, when used as a reinforcement in concrete, distributes the stresses throughout the concrete slab, as has been maintained by engineers during the past 40 years.
2. That welded wire fabric provides adequate crack control within the working limits of the fabric.

In order to efficiently accomplish Objectives 1 and 2 above, we wish to establish:

1. The safe working stress that we can safely recommend for welded wire fabric -- both in bond and tension.
2. The proper spacing of longitudinal …

The Effect Of Grain Size On Shearing Strength Of Sand, Keyhan Samimi

Masters Theses

"The object of this study is to determine experimentally the effect of definite grain size on the shearing characteristics of sandy soils. As it will be discussed in detail under the article - The Mechanics of Shear, the shearing characteristics of sandy soils depends on many factors such as grain size and shape, soil structure and relative density, the water content of soil. An attempt is made throughout the entire investigation to determine the effect of definite grain size on the shearing value and the angle of internal friction under the dry and saturated conditions. Furthermore, the results of shear …

Comparative Study Of The Physical Properties Of Traffic Paints, A. C. Peed Jr.

Kentucky Transportation Center Research Report

Traffic or zone paints have become a major item of expenditure for highway departments with their increasing mileages and with the increase in traffic using the highways. Extending the mileage requiring marking and increasing the traffic wear on the marking has necessitated successively larger purchases of paint and associated equipment. As this market became larger increasing numbers of manufacturers have entered the field with a great diversity of formulations having differing properties.

In order to bring some order out of this situation the Research Laboratory in cooperation with the Division of Traffic undertook a study of the paints as offered …

Observation On Seal Coats, Tack Coats, Penetration Macadam, And Blade Spread Hot Mix In 1951, William B. Drake, Harvey J. Field Jr., S. T. Collier

Kentucky Transportation Center Research Report

During the 1950 construction season the Research Division observed the construction of several types of seal coats, a few tack coats and a penetration macadam pavement, A report, covering mostly construction practices on these projects, was submitted to the Research Committee at the February meeting in 1951. The report is titled "Observations on Seal Coats, Tack Coats, and Penetration Macadam Construction in 1950," and dated January, 1951.

A follow-up of most of these projects is submitted here, The performance of the seals was greatly influenced by failure of the bases during the very severe winter of 1950-51. Considerable frost action …

Spherical Lens Optics Applied To Retro-Directive Reflection, James H. Havens, Allie C. Peed Jr.

Kentucky Transportation Center Research Report

This paper describes some expedient applications of elementary optical principles to the evaluation of glass-bead reflectorizing systems for highway signs and markers. 'The optical function of spherical lenses in achieving reflex-reflection is illustrated both photographically and diagrammatically. Various optical designs are discussed and analyzed. By simple geometric optics, the efficiency of these systems is correlated with the practical performance criteria for retro-directive reflectorization.

Vibratory Compaction Of Base Courses, Kentucky Highway Materials Research Laboratory

Kentucky Transportation Center Research Report

Early this month, on a field trip with Mike Logan of tho Bureau of Public Roads and R. D. Medley, Asst. Director of Design, I had an opportunity to look over a project in Ohio where a vibratory method of compaction was being used in tho construction of a macadam base course, This type of compaction is relatively new, it having been tried for the first time in this country about four years ago, To my knowledge, the first published report on the procedure was made in the Proceedings of the Highway Research Board, Volume 27, page 148, 1947.

This …

Clay Mineralogy And Soil Stabilization, James H. Havens, William A. Goodwin

Kentucky Transportation Center Research Report

This paper attempts to resolve a general concept of soil rheology from the standpoint of clay mineralogy, ion-exchange, properties of clay-water systems, and volume relationships existing between clay-water systems and granular structures. Both theory and experimental data are presented.

In the experimental phase, synthetic soils of varying clay contents were prepared from carefully fractionated soil constituents. These were subjected to combined-stress analyses, tests for plasticity characteristics, and detenninations of other physical properties.

Evaluation Of Plant Mix Surface Treatments, William B. Drake

Kentucky Transportation Center Research Report

This project made use of six bituminous materials and ten aggregate gradations in plant mix paving operations. The test sections were installed by state forces in 1942 and 1943. The object was to determine which aggregate gradation with a specific bituminous material was best suited for an application of 75 pounds per square yard surface treatment.

The bituminous materials used were MC-5, RC-5, RT-12, PAC-5 (85 to 100 penetration), PAC-7 (120 to 150 penetration), and PAC-8 (150 to 200 penetration). Twenty sections of MC-5 and ten sections of RC-5 were laid in 1942; all the sections containing the other materials …

Microfauna Of The Colorado Shale In The Sunburst Dome Area, Montana, Merle W. Emmert

Bachelors Theses and Reports, 1928 - 1970

It has been hoped that a micropaleontological study of the shales of the Upper Cretaceous Colorado Group in northern Montana would reveal certain faunal zones which would serve as markers in an otherwise drab, undifferentiated, 1800 feet of grey, fissile shale. This paper presents the results of a study of the microfauna in certain samples from this shale in the Sunburst Dome area north of Shelby, Montana.

The Elkhorn Mine Of Jefferson County, Montana, David D. Walker

Bachelors Theses and Reports, 1928 - 1970

In 1901, after yielding metals valued in excess of five million dollars, it was considered worked out. Since that time the mine has passed through the hands of several own­ers, none of whom have failed to realize a profit from it. Although at no time since its zenith did it ever regain its once great production, it did provide a livelihood for those who worked it. Now with the American Smelting and Refining Company interested in it, perhaps it will once again become an important producer.

The Occurrences Of Non-Metallic Minerals In Montana, Samuel T. Mitchell

Bachelors Theses and Reports, 1928 - 1970

This thesis is essentially an abstract of the literature concerning occurrences in Montana of minerals with a non-metallic luster. The dis­cussions give a general description of the occurrences of minerals as reported by the various references, but is not complete as less than 40 percent of the non-metallic minerals known to exist in Montana are discussed.

Progress Report On Experimental Jointing Installations For Concrete Pavements, S. T. Collier

Kentucky Transportation Center Research Report

Combined in this report are descriptions of the progress of three individual experimental joint installations. Each of these includes a series of two or more experimental joints of special design, installed in concrete pavement in lieu of the conventional types employed in their respective construction projects.

These experimental joints included at one location a prefabricated neoprene seal; and, at two locations, aluminum load transfer devices, All installations were contraction joints only, Periodic inspections of these have been made and will be continued on two of the projects until adequate performance records are established. The condition of concrete about the joints …

Report Of An Inspection Of Pavement Construction On The New Jersey Turnpike, L. E. Gregg

Kentucky Transportation Center Research Report

No abstract provided.

Sulphidizing Of Cerussite, Emil A. Kovacevich

Bachelors Theses and Reports, 1928 - 1970

The oxide minerals, such as cerussite, are not as amen­able to flotation as the sulphide minerals. Sulphidization is the usual means used today to increase the recovery of an oxide flotation; however, sulphidization under the most ad­vantageous conditions does not yield very satisfactory re­coveries.

Faunal Studies Of The Lower Jefferson Limestones, James L. Eymann

Bachelors Theses and Reports, 1928 - 1970

The exact geologic age of the Jefferson limestone in Montana has not been definitely determined, other than it is probably of upper, but possibly in part of middle Devonian age. Although not of immediate or apparent economic importance, the determination of the exact age of the Jefferson limestone may be of much value in connection with the discoveries of large quantities of oil in Devonian strata in the northern Great Plains and, in particular, with the extensive deep drilling in northeastern Montana which is anticipated during the summer of 1951.

A Mineralogical Investigation Of Some Montana Hydrobiotites, John W. Baker

Bachelors Theses and Reports, 1928 - 1970

Vermiculite is one of the most recent important nonmetallic minerals to be exploited for use in the industrial world. For this reason, the fund of knowledge relating to this mineral is rather limited. This paper represents the results of laboratory studies that were undertaken to contribute data to this fund of knowledge.

Differential Thermal Analysis Of Some Carbonate Minerals, Paul L. Vandeveer

Bachelors Theses and Reports, 1928 - 1970

Thermal analysis is a relatively new method of determining the general composition of certain mineral substances. As is demonstrated by much of the literature previously written, clays and carbonates are especially adaptable to this method. The full importance of the method is not as yet realized, but it is rapidly approaching that point.

The Influence Of Copper Upon The Age Hardening Properties Of Steel, Andre Rey

Bachelors Theses and Reports, 1928 - 1970

The virtues of alloy steels have been widely publi­cized in both technical literature and everyday adver­tising. Nearly everyone possessing a slight knowledge of metallurgy knows the beneficial effects of chromium in the manufacture of stainless steels, or the importance of nickel, molybdenum, vanadium, and other common elements used to alloy steels.

The Electrolytic Purification Of An Impure Cadmium Sulfate Solution With A Cell Utilizing A Mercury Cathode And A Lead Anode, W. D. Mcmaster

Bachelors Theses and Reports, 1928 - 1970

Cadmium is produced solely as a by-product and all cadmium of commerce is obtained from zinc ores. It is a rare occurrence when zinc deposits are found which do not contain some cadmium.

Benefication Of A Tungsten Ore, James Alexander Shaffer Jr.

Bachelors Theses and Reports, 1928 - 1970

Tungsten is a metal of high strategic value in the defense effort. It is used chiefly to improve creep strength in steels, although a significant percentage enters into the manufacture of cemented carbide tool bits. Therefore, in this age of mechanized warfare, quality and quantity of defense production depend greatly on tungsten.

The Gallium-Indium Constitutional Diagram, Richard E. Gaffney

Bachelors Theses and Reports, 1928 - 1970

Because of the discrepancy as to whether there is solid solubility in the gallium-indium system, and the fact that no alloys with less than 1% indium were ever investigated; the possibility of solid solubility in either or both ends of the diagram was not overlooked. According to Hume-Rothery, two alloys with the same relative positions on the Periodic Chart should have about the same alloying habits.

Electrowinning With Amalgam Electrode, Ralph V. Anderson Jr.

Bachelors Theses and Reports, 1928 - 1970

Amalgam Metallurgy, a relatively new expression in the technology of metal extraction, was first chosen to describe certain new processes developed at the Duisburg Copper Works in Germany. The idea of using mercury, a costly and poisonous metal, as an intermediate in heavy chemical industry and in polarography are of recent origin; with the exception of a series of patents of little signif­icance and occasional comments in the literature, the work is hardly known.

Chemical Analysis Of Igneous Rocks And Variation Diagrams Of Petrographic Provinces Of Montana, Frederick M. Hilpert

Bachelors Theses and Reports, 1928 - 1970

A total of 179 chemical analyses of igneous rocks are avail­able for the state of Montana, but these analyses do not cover the entire state in a satisfactory manner. There has been an emphasis on the central part of the state, and an almost complete lack of interest in the southern portion of Montana.

Polarographic Analysis Applied To Metallurgical Solutions And Products, Donald W. Johnson

Bachelors Theses and Reports, 1928 - 1970

The polarograph has been applied to a large number of chemical and metallurgical analyses, and is especially applicable to solution control analysis and to the deter­mination of minute quantities of ions in the presence of large amounts of other ions.

Metal Production From Ore Deposits In Different Host Rocks In Montana, Robert F. Gale

Bachelors Theses and Reports, 1928 - 1970

It is known that many different kinds of rocks serve as host to the ore deposits of Montana, but the relative importance of each of these kinds of rock as a host for ore deposits has never been described in any published report.

Determination Of The Activities Of Indium And Mercury And The Vapor Pressures Of Mercury Over These Amalgams From 0.00216 To 0.02494 Mole Fraction Indium At 25 C And From 0.00067 To 0.02410 Mole Fraction Indium At 70 C By Electromotive Force Measurements, Arthur H. Lutts

Bachelors Theses and Reports, 1928 - 1970

This work was performed to determine by experimental means the activities of both indium and mercury and the vapor pressures of mercury over these amalgams at 25 and 70 C.

Vacuum Distillation Of Zinc And Cadmium From Zinc Leach Purification Cake, Stiles R. Slosson

Bachelors Theses and Reports, 1928 - 1970

The term "vacuum distillation" is used to des­cribe the process employed when certain elements are separated either from their mother compounds or from one another by distilling them under reduced atmos­pheric pressure.