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Articles 38971 - 39000 of 39806

Full-Text Articles in Civil and Environmental Engineering

Runoff And Soil Moisture, John William Clark Jr. Jan 1953

Runoff And Soil Moisture, John William Clark Jr.

Masters Theses

"Hydrology is the science treating of water from the time it hits the earth until it leaves the earth. This never ending movement of water is called the "hydrologic cycle" and is best summarized graphically. The hydrologist is primarily concerned with rainfall, runoff and evaporation. One of the basic aims of the science is to compute the surface runoff from any rain on a given area. Surface runoff is here considered as that water which reaches the channels without penetrating the ground, plus subsurface storm flow. Subsurface storm flow is slower than surface runoff but faster than ground water flow. …


The Effect Of Air-Entrainment On Concrete Containing Chert Gravel, Ali Erdogan Dinc Jan 1953

The Effect Of Air-Entrainment On Concrete Containing Chert Gravel, Ali Erdogan Dinc

Masters Theses

"The problem which the writer is analyzing in this paper has been suggested to him by Prof. Carlton of the Civil Engineering Department. It consists of two parts.

  1. 1. Bar-Run aggregate is to be obtained from Springcreek near Rolla. This material is to be screened and recombined to obtain the best gradation for highest strength concrete obtainable.
  2. Durability studies are to be made on the concrete resulting from best established mix by varying the amount of air entrainment compound (Vinsol Resin) to be added to the cement"--Introduction, page 1.


Chronicle: John E Mathews Bridge Edition Presenting The Story Of A Great Achievement, Sam D. Melson Dec 1952

Chronicle: John E Mathews Bridge Edition Presenting The Story Of A Great Achievement, Sam D. Melson

City and Regional Planning -- Florida

Special Edition of the independent weekly Chronicle on the John E. Mathews Bridge, it's planning and construction.


A Bank Gravel Base Containing Calcium Chloride [Report No. 2], William B. Drake Dec 1952

A Bank Gravel Base Containing Calcium Chloride [Report No. 2], William B. Drake

Kentucky Transportation Center Research Report

Attached you will find our second progress report on "A Bank Gravel Base Containing Calcium Chloride," by W.B. Drake. This project pertains to that portion of the Paducah-Eddyville Road (U.S. 62) extending from Kentucky Dam to Kuttawa. You are quite familiar with the road having visited it in company with Mr. Bray on August 13, this year and I believe most of the members of the Research Committee are familiar with it. Discussions following presentation of Report No. 1 on the project at our meeting last April would have accomplished that, but the road is better known for the number …


A Compendium On Class I, Type C Mixes, Ellis G. Williams Dec 1952

A Compendium On Class I, Type C Mixes, Ellis G. Williams

Kentucky Transportation Center Research Report

Recently the Class I, Type C Surface Mix has been the subject of numerous discussions resulting from present paving operations on Muldraugh Hill (U.S. 31W and U.S. 60) south of Louisville, and from performance of pavements placed heretofore on some Louisville Streets. Apparently, past difficulties have created some doubt about the suitability of Type C surfaces in heavy traffic areas for which it was intended. Type C does not represent the ultimate in stable mixtures, but it should be entirely adequate for the purpose intended.


A Concrete Pavement Without Transverse Joints [Dec. 1952], William B. Drake Dec 1952

A Concrete Pavement Without Transverse Joints [Dec. 1952], William B. Drake

Kentucky Transportation Center Research Report

This project was last reported in January, 1951, or approximately two years ago. Three previous reports have been made. Report No. 2 was dated December, 1949, and Report No. 1 was made July, 1949. A memorandum report (for file only) covering the two 1951 inspections was made in February of 1952.

This road is a section of U.S. 31W in Simpson County designated as FI 239(4). It runs from Sta. 9-11 at the Tennessee State Line to Sta. 311-40 at the south city limit of Franklin (see layout plot). It consists of a 22-foot concrete pavement underlain by 1-1/2 inches …


The Performance Of Cold Mastic Joint-Sealing Compounds And Sawed Joints In Concrete Pavements, Dave H. Sawyer Dec 1952

The Performance Of Cold Mastic Joint-Sealing Compounds And Sawed Joints In Concrete Pavements, Dave H. Sawyer

Kentucky Transportation Center Research Report

Included in this report are observations and data on the performance of various types of crack and joint sealing materials applied to three separate concrete pavements. The factors which are considered pertinent in evaluating the respective conditions of the materials are: length of service, tightness of joint, adherence to the concrete pavement, and ductility. The three materials used on these projects were cold mastic, hot-poured asphalt rubber, and OA-2 cut back with MC-3.


A Survey Of Acidity In Drainage Waters And The Condition Of Highway Drainage Installations, James H. Havens Dec 1952

A Survey Of Acidity In Drainage Waters And The Condition Of Highway Drainage Installations, James H. Havens

Kentucky Transportation Center Research Report

During the summer of 1949, approximately one year after installation, serious corrosion failures were discovered in a series of galvanized metal entrance culverts on U.S. 60 south of Ashland near Princess. Because of a unique disparity in their performance at this location, the problem was referred to the Research Division for possible explanation. An impromptu investigation ensued, and the cause of the failure was attributed directly to acid drainage water flowing from extensive strip-mining operations within the immediate area. A report (1)* describing the attendant conditions was made to the Research Committee in December of that year.

As an outgrowth …


An Investigation Of Lean Concrete Mixes As Base Courses For Bituminous Surfaces [Dec. 1952], Dave H. Sawyer Dec 1952

An Investigation Of Lean Concrete Mixes As Base Courses For Bituminous Surfaces [Dec. 1952], Dave H. Sawyer

Kentucky Transportation Center Research Report

During the summer of 1950, the Kentucky Department of Highways placed a lean concrete mix for base construction and widening in Montgomery County. This project was a 4.415 mile section of U.S. 60 on the Winchester-Mt. Sterling Road, and was designed as SF 87-117. Four major revisions – three alignment and one grade – were completed on the project thus requiring full-width base replacement of sections of the old pavement with the lean concrete mix.


Evaluation Of Traffic Paint In 1952, A. C. Peed Jr. Dec 1952

Evaluation Of Traffic Paint In 1952, A. C. Peed Jr.

Kentucky Transportation Center Research Report

Following the program of in-service transverse stripe evaluation coupled with laboratory study of traffic paint samples submitted by various manufacturers who propose to bid on the Departments paint requirements, field stripes were placed August 19, 1952. For this test stripes were placed in the same general location as that used the two previous years (U.S. 27 south of Lexington at the junction of the concrete and bituminous pavements). Gradings contained herein were made December 27, 1952, and thus represent a somewhat premature five-month evaluation. However, the set of stripes placed in 1951 were scrutinized since they had sixteen months of …


A Limestone-Calcium Chloride Stabilized Base, William B. Drake Aug 1952

A Limestone-Calcium Chloride Stabilized Base, William B. Drake

Kentucky Transportation Center Research Report

This report is mainly concerned with the calcium-chloride stabilized portion of a combination base. A 4-inch course of waterbound macadam was placed over a 1-inch insulation course overlying an existing traffic-bound stone surface. The next 4 inches of base above, the water bound material consisted of two 2-inch layers of calcium-chloride stabilized limestone of a design not used heretofore by the Department.

Bituminous concrete binder and surface courses laid over the base brought the total mat thickness to more than 11 inches. The surface width was 30 feet, and the length of the project was 1.1 miles.

Although the road …


Head Determinations For Structures On U.S 23 That Are Affected By Raising The Normal Pool Elevation Of Ohio River Lock And Dam No. 30 At Greenup, Kentucky, Eugene M. West Jul 1952

Head Determinations For Structures On U.S 23 That Are Affected By Raising The Normal Pool Elevation Of Ohio River Lock And Dam No. 30 At Greenup, Kentucky, Eugene M. West

Kentucky Transportation Center Research Report

During a visit to this office on July 3, 1952, Mr. J.O. Cornell requested the assistance of the Hydraulics Section of the Research Laboratory in investigating the possible head to be expected on the drainage structures on U.S. 23, that would be influenced by the proposed raising of the normal pool elevation of Ohio River Lock and Dam No. 30 at Greenup, Kentucky.

In order to better evaluate the head to be expected, I have approached the problem from an analytical standpoint, outlining and comparing the results from three suggested methods. The results of the analysis of the three separate …


Corrosion Of Highway Structures By Acid-Bearing Drainage Water In Hopkins County, James H. Havens Jun 1952

Corrosion Of Highway Structures By Acid-Bearing Drainage Water In Hopkins County, James H. Havens

Kentucky Transportation Center Research Report

Pursuant to your conversation with Mr. Hopgood concerning the above matter, Mr. Peed and I contacted Mr. Charlie Rogers, Resident Engineer, Madisonville, and made an inspection of the locations in question. In specific connection with this, you will recall from our Progress Report No. 1 on "A Survey of Acidity in Drainage Waters and the Condition of Highway Drainage Installations" that the acid conditions in Hopkins County were rated as extremely severe, if not the most critical in the state. It was, in part, due to the prevailing severity there that led to the selection of a location at Mortons …


The Sedimentary Petrography Of The Oil And Gas Producing Horizons In Montana, Patrick J. Donahue May 1952

The Sedimentary Petrography Of The Oil And Gas Producing Horizons In Montana, Patrick J. Donahue

Bachelors Theses and Reports, 1928 - 1970

Montana is an excellent oil province, as oil and gas are pro­duced from a wider range of beds in the geologic section than in any other district in the United States. (1,864) Commercial fields have been developed in Ordovician, Devonian, Mississippian, Pennsylvanian, Jurassic, Lower Cretaceous, and Upper Cretaceous. It is believed that by describing the physical characteristics of the producing horizons, and by placing this information in one compact volume, a better under­standing of oil and gas occurrence in Montana may be gained.


The Accessory Minerals Of Some Granitic Rocks Of The Boulder Batholith, Robert T. Donahue May 1952

The Accessory Minerals Of Some Granitic Rocks Of The Boulder Batholith, Robert T. Donahue

Bachelors Theses and Reports, 1928 - 1970

Although the position of the Boulder batholith in space and time is well known, the modes of occurrence of various rock types and the inter-relationships between the petrographic types are not known in detail.


The Mechanical Production Of Zinc Dust, Charles A. Schroer May 1952

The Mechanical Production Of Zinc Dust, Charles A. Schroer

Bachelors Theses and Reports, 1928 - 1970

The object of this thesis is to produce zinc dust suitable for zinc leach purification, by direct application of a mechanical force on a stream of molten zinc.The project is a continuation of work done by Mr. D. S. Gleason, while working for his Master of Science degree in the spring of 1952.


Flotation Of Huebnerite, Henry Albright May 1952

Flotation Of Huebnerite, Henry Albright

Bachelors Theses and Reports, 1928 - 1970

The development of suitable beneficiation processes for treating domestic low-grade tungsten ores is a problem now facing the mineral industry. While we are now consuming more tungsten than normally because of the defense program, we are no longer able to import ores from the world's principal source, China. The problem then, is to increase our domestic production so as to ac­quire a greater degree of self-sufficiency.


The Construction Of An X-Ray Camera, Emil Bazarnicki May 1952

The Construction Of An X-Ray Camera, Emil Bazarnicki

Bachelors Theses and Reports, 1928 - 1970

The major portion of the construction of the X-ray camera was performed in the machine shop of Montana School of Mines. However, some machine work had to be accomplished in the Butte High Machine Shop, as well as in the machine shop of the Anaconda Copper Mining Company.


Protective Refractory Coatings On Titanium Metal, Eugene F. Gibbs May 1952

Protective Refractory Coatings On Titanium Metal, Eugene F. Gibbs

Bachelors Theses and Reports, 1928 - 1970

The problem undertaken in this thesis concerns the development of a newer phase of metallurgy, namely the adaption of the strong, lightweight metal titanium to high-temperature uses. The primary objective of the investigation is to determine wheth­er the application of refractory coatings to titanium will pro­tect the metal from chemical reactions and corrosion at high temperatures.


The Birdie Mine Tungsten Deposit Butte Mining District, Silverbow County, Montana, Bernard A. Fahm May 1952

The Birdie Mine Tungsten Deposit Butte Mining District, Silverbow County, Montana, Bernard A. Fahm

Bachelors Theses and Reports, 1928 - 1970

The importance of tungsten has encouraged the search for minerals of this metal, and consequently new deposits have been discovered, and known deposits have been re-examined. Western Montana has rather widespread deposits if low-grade types are also considered. Many deposits were known long ago, but abandoned because the use of tungsten was still in its beginning stage and therefore little attention was given to this type of mineral.


Geological Problems At Kerr Dam Lake County, Montana, Roger C. Rice May 1952

Geological Problems At Kerr Dam Lake County, Montana, Roger C. Rice

Bachelors Theses and Reports, 1928 - 1970

With an increased demand for power in Montana and sur­rounding territory, there is a need for existing power installations to produce more hydro-electric power. Kerr Dam, Lake County, Montana has been one of the dams selected for added output.The existing dam and power house installation with its two hydro-electric was finished in 1938, and has been producing power ever since.


The Occurrence Of Molybdenite In The United States, Alaska, Canada, And Newfoundland, Richard W. Brummett May 1952

The Occurrence Of Molybdenite In The United States, Alaska, Canada, And Newfoundland, Richard W. Brummett

Bachelors Theses and Reports, 1928 - 1970

In this study of molybdenite and its occurrence, the pub­lished literature on 66 separate deposits was reviewed, sum­marized, and coordinated. The following descriptions are in­tended to point out the important features of molybdenite oc­currences as described in the literature.


The Immersion Coating Of Indium Upon Magnesium From Sulphate Solutions Containing Flourides, John J. Harrington May 1952

The Immersion Coating Of Indium Upon Magnesium From Sulphate Solutions Containing Flourides, John J. Harrington

Bachelors Theses and Reports, 1928 - 1970

The thesis problem that will be discussed in this report is an investiga­tion of a method of plating a coating of indium upon magnesium and magnesium alloys. The method used to accomplish the final results is the immersion pro­cess. It can be defined as the process of coating a metal with a second metal by immersing the first in a solution containing ions of the second.


Variation Of Induction And Hysteresis Curves For The Heusler Alloy, Cu2mna1, Ford W. Knight May 1952

Variation Of Induction And Hysteresis Curves For The Heusler Alloy, Cu2mna1, Ford W. Knight

Bachelors Theses and Reports, 1928 - 1970

The purpose of this investigation is to determine the fundamental magnetic characteristics of induction and hysteresis, for the alloy Cu2MnAl. This is a ternary, ferromagnetic Heusler alloy. The problem is not only to determine these characteristics for the alloy as-cast but to heat treat it and observe the manner in which different heat treat­ments affect these two fundamental magnetic characteristics.


The Effect Of Ferric Iron Upon The Current Efficiency And The Deposition Of Copper In The Electrowinning Of Copper From Copper Sulphate Solutions, James L. Owings May 1952

The Effect Of Ferric Iron Upon The Current Efficiency And The Deposition Of Copper In The Electrowinning Of Copper From Copper Sulphate Solutions, James L. Owings

Bachelors Theses and Reports, 1928 - 1970

In the hydrometallurgy of copper, probably the most widely used method for the precipitation of copper is by electrolysis using insoluble anodes. The process is similar in many respects to the electrolytic refining of copper; one of the main differences is the use of insoluble anodes in electrowinning as compared to the use of impure copper anodes in electrorefining. Impurities, however, are common to both processes. The nature of these impurities differ and the problem of purifying the electrolyte is also different.


Electrowinning Of Zinc By Mercury Cathode, Tor O. Notevarp May 1952

Electrowinning Of Zinc By Mercury Cathode, Tor O. Notevarp

Bachelors Theses and Reports, 1928 - 1970

The problem was the investigation of electrowinning of zinc by using a mercury cathode, employing a neutral solution of zinc sulphate and containing small amounts of zinc, in the order of ten grams zinc per liter and less. The purpose of this study was on the base of the laboratory experiments to investigate the operational data that might possibly be applied in practice or industry.


The Mechanical Production Of Zinc Dust, Robert F. Payne May 1952

The Mechanical Production Of Zinc Dust, Robert F. Payne

Bachelors Theses and Reports, 1928 - 1970

It was the purpose of this investigation to delve further into the possibility of producing, by mechanical means, a zinc dust which might be suitable for the puri­fication of zinc leach solution.


The Metallography Of Aluminum Casting Alloys, Donald D. Goehler May 1952

The Metallography Of Aluminum Casting Alloys, Donald D. Goehler

Bachelors Theses and Reports, 1928 - 1970

The purpose of this thesis is to supply the Montana School of Mines with an up to date source of information concerning the metallography of aluminum casting alloys. This thesis is designed as a continuing project. Ultimately, it is hoped that a catalog containing all the typical structures of aluminum casting alloys will develop.


The Effect Of Iron Upon The Electrowinning Of Copper With An Amalgam Electrode, John A. Alexander May 1952

The Effect Of Iron Upon The Electrowinning Of Copper With An Amalgam Electrode, John A. Alexander

Bachelors Theses and Reports, 1928 - 1970

Current commercial use of the mercury cathode cell is limited to two types of electrolytic sodium cells-­the Castner cell and the Sorenson cell. Mercury as a cathode medium has also found application in polarographic analysis, a method of a simultaneous quantitative and qualitative analysis of several metal components of solution.


An Investigation Of The Hardening Properties Of Some Alpha Copper Indium Alloys, Charles W. Mcpherson May 1952

An Investigation Of The Hardening Properties Of Some Alpha Copper Indium Alloys, Charles W. Mcpherson

Bachelors Theses and Reports, 1928 - 1970

Precipitation hardening alloys has assumed a major role in modern day development of alloys. In his search for stronger, harder materials, the metallurgist has often been limited by the cost of metals which posses the needed properties.