Civil and Environmental Engineering Commons^™

A Study Of The Composition Of Zinc Complex Cyanide Solutions By The Conductometric Method, Robert James Woody

Bachelors Theses and Reports, 1928 - 1970

As the method or analysis used up to the present time has failed to give quantitative results in determining the composition of zinc cyanide baths, conductometric methods were adopted in this study. Supplementary tests were also carried out in this investigation.

The Leaching Of Electrodeposition Of Iron, Emmett G. Simmons

Bachelors Theses and Reports, 1928 - 1970

Electrolytic iron as deposited is brittle and therefore must be annealed. After annealing, the material is ductile and closely resembles copper in its behavior under work. It is claimed to be more resistant to corrosion than dead soft iron. It also has the advantage of corroding uniformly ( or­dinary soft iron develops pin holes which shorten its life considerably).

The extreme purity of electrolytic iron namely makes it very suitable as a base metal for alloys. Its ductility opens up a field for use in the manufacture of cold rolled strip, seamless tubes, and wire.

Facing The Problem Of Traffic Congestion, William Forrestal

Bachelors’ Theses

Modes of transportation are constantly changing, and traffic, as well as its control, must be adapted to each new development.

Playgrounds And Recreation Areas In Real Estate Subdivisions, Joseph L. Doyle

Bachelors’ Theses

With the coming of the machine age, the need of adequate playground and recreation areas in large cities is steadily increasing. During the past ten years, or more, congested cities have found it necessary to supply at any cost, playground and. recreation areas, for their people, who from year to year find that they have more and more leisure time at their disposal. In an unlimited number of instances the only way this could be secured was by buying valuable land, wrecking the buildings thereon, and thus provide open spaces for recreation at an enormous cost to the city. Had …

Some Problems In The Construction Of Artificial And Natural Gas Pipe Lines, Waring Mikell

Professional Degree Theses

"In 900 A.D. the Chinese piped natural gas through bamboo tubes and used it for lighting, and about 1830 artificial gas was carried by three inch wooden pipes in a town in New England. Today there are many thousands of miles of steel pipe bringing gas from Western fields to eastern cities, and many more miles of steel and cast iron pipe for the distribution of artificial and natural gas in the majority of the towns and cities in the United States. This paper will deal with the construction of acetylene welded steel pipe lines, and some of the problems …

The Location, Construction, And Maintenance Of The Rabbit Ears Pass Forest Highway, Julian Greenway Huckins

Professional Degree Theses

"The Bureau Public Roads, Department of Agriculture, has jurisdiction over the construction of, and Federal Aid Funds expended on, the Federal Aid Highways thruout the United States, Alaska, and Hawaii. It may not be generally known that the Bureau is also in direct charge of the location, construction, and maintenance of all National Forest Highways under the Department of Agriculture and all National Park Highways under the Department of the Interior. District No. 3 of the Bureau Public Roads, with headquarters in Denver, is composed of the States of Wyoming, Colorado, New Mexico, and the Black Hills Region of South …

Sewage Disposal Improvements At Pontiac, Michigan, Robert William Abbett

Professional Degree Theses

"The existing East Boulevard Sewage Disposal Plant consists of a set of bar screens, a grit chamber, a battery of three Imhoff tanks, eight trickling filter units, of the rotary-distributor type, and three secondary settling tanks. The plant was designed for a population of 52,500 in 1919 by Clarence W. Hubbell, Consulting Engineer. At the present time the plant shows evidence of loading beyond its capacity, the distress of the Imhoff tanks being particularly acute"--Present Sewage Disposal Facilities, page 5.

A Plant Efficiency Survey And Experimental Plant Results Obtained At The Sioux Falls Sewage Treatment Plant, Sioux Falls, S.D., Lowell A. Yost, Hans Jepson

Electronic Theses and Dissertations

"Sioux Falls, the largest city in South Dakota is situated on a bend in the Sioux River. The flow of this river ranges from a recorded minimum flow or 9 to a maximum flood flow of 500 cu. ft. per second. As originally designed and built the sewage system emptied into the river at three main outlets. In 1910 the City had a population of approximately 14000 people, and during the next decade its population practically doubled. During this period of growth there was added to the industries of the City a large meat packing plant which has been steadily …

Piles And Pile Driving, Robert W. Van Houten

Theses

This thesis on the subject of "Piles and Pile Driving" has been written to fulfill one of the requirements for the granting of the degree of Civil Engineer by the Newark College of Engineering. The material contained in this thesis has been gleaned from many books, catalogs, magazines and from the author's own experience. Much still needs to be accomplished in the field of research but this can be done only through the cooperation of the companies who are engaged in this work and have the equipment necessary for making many tests under actual field conditions.

The author wishes to …

Problems Encountered In The Development Of An Airport, A. H. Armstrong

Theses

The progress of a nation and. its transportation facilities have always advanced hand in hand.

Just as it has always beerthe Civil Engineer's problem to develop facilities for other means of transportation, such as roads, harbors, and. railroad terminals, so is it his problem today to build airports.

In presenting the problems encountered in the development of an airport, the writer has considered the airport's place in city and regional planning, as well as the part it plays in air transportation.

An expression of thanks is given to Mr. Wm. S. La Londe, Jr., professor in Civil Engineering at the …

The Recovery Of Copper In Sulphide Ores By Roasting, Leaching, And Electrolysis, Jack S. Greenough

Bachelors Theses and Reports, 1928 - 1970

Sulphide ores of copper are insoluble in dilute sulphuric acid leaching solutions, but a very high extraction can be obtained if the copper ore is in the oxidized condition. The problem is to convert the sulphide into the oxide form. This can be done by giving the sulphide ore an oxidizing-sulphatizing roast. Copper sulphate is soluble in water, so acid will be saved in the leaching process if copper sulphate is present. The iron in the copper sulphide ores is present as pyrite, or in combinations as bornite, or chalcopyrite.

The Effect Of The Fe2: Fe3 Ratio Upon The Current Efficiency In The Electrolysis Of A Copper Sulfate Solution Containing Iron Sulfate, Roy Macfarland

Bachelors Theses and Reports, 1928 - 1970

In the treatment of copper ores by hydro-electro-metallurgical methods, not only is copper deposited, but other metals are also dissolved. In practice it has been found* that iron, under certain conditions, causes the copper to deposit on the cathode as a nonadherent precipitate and also that the iron in solution causes a great decrease in current efficiency, es­pecially when the electrolysis is conducted by operating with a higher current density at the cathode than at the anode.

The present investigation deals with the effects of the two valences of iron on the current efficiency and endeavors to determine whether or …

Some Notes On The Composition Of "Copper Pitch", Richard R. Matthew

Bachelors Theses and Reports, 1928 - 1970

A supply of so-called "copper pitch" ore was received by the Montana Bureau of Mines and Geology in response to a request by them from a resident of Kalispell, who had previously sent a specimen to the Bureau for a mineralogical analysis.

Since this material was little known and had apparently received but little study under a reflec­ting microscope, it was thought that such a study might throw some light on the mineralogical and chemical composition of the material.

The Aplitic Body Bordering Roosevelt Drive South Of Butte, Montana, Edward B. Trueworthy Jr.

Bachelors Theses and Reports, 1928 - 1970

The area studied consists of a large body of aplite situated 12 miles south of Butte. It extends eastward almost to the Butte-Pipestone road, southward to Lime Kiln Hill and westward a distance of 3000 feet.

The petrographic work was supplemented by a map of the area. Special attention was given to those frequent "Limonite Specks" found in the aplite.

Joint Planes In The Rhyolites Of The Butte District, Montana, John B. Hopkins

Bachelors Theses and Reports, 1928 - 1970

The problem herein discussed deals with the pointing planes found in the area of rhyolite located in the northwestern portion of the Butte District. The question to be determined was whether or not the pointing planes in the rhyolites could be class­ified with the Butte Ore fissure systems.

A Bentonite Deposit Near Warm Springs, Montana, R. H. Larson

Bachelors Theses and Reports, 1928 - 1970

This report deals with a bentonite deposit recently developed, approximately seven miles northeast of Warm Springs, Montana. A group of claims have been staked on the deposit and are owned by the Lincoln Mining Company of Anaconda, Montana. The company also has several claims prospected for silver one mile from its present site of operations, but the silver prospects have failed to produce. The bentonite deposit was discovered incidentally during the course of other development work, and at present two adits have been driven into the side of a mountain, each crosscutting a vein-like mass of bentonite varying from two …

Asphalt Emulsions, Albert Joseph Krause

Bachelors’ Theses

During the past decade the improvement of our primary or trunk line highways and the streets of our business as well as the principal residence streets of our towns and cities has gone forward at a rapid pace. For the most part these improvements have consisted of high-type, costly pavements which have in some cases placed excessive burdens on our public treasuries and the tax-payers who are assessed for them.

The Effect Of Hydrogen Overvoltage On The Electrolytic Deposition Of Zinc, John M. Munzenrider, Kenneth O. Sweeney

Bachelors Theses and Reports, 1928 - 1970

In the deposition of metallic zinc by electro­lysis from neutral or acid solution, little difficulty is experienced provided certain impurities are absent from the electrolyte. The use of the process has long been considered as a potential source, patents on the process having been issued as early as 1880. However, the early experimenters failed to realize the importance of impurities in the electrolyte, and for this reason, the process suffered several severe setbacks when commercial plants were built.

The Electrolytic Deposition Of Chromium Upon Aluminum, E. Fults, L. D. Voerge

Bachelors Theses and Reports, 1928 - 1970

The purpose or this investigation is primarily to determine the best conditions for plating chromium on aluminum. The work was carried out with the hope of obtaining coherent deposits, and of determin­ing the conditions under which such deposits may be duplicated.

Fundamentals Of Bridge Design, Albert C. Kalmbach

Bachelors’ Theses

Man's earliest communication followed: water routes. Our prehistoric ancestors, evidence shows, fashioned boats and rafts which enabled them to travel along the rivers, and later to sail the seas. Following history through the years we will find man always developing theater routes for transportation before other methods. The early colonies in our America were along the coastal rivers; the Ohio and Mississippi river valleys were first settled in the interior.

Flood Control Measures For Salina, Kansas, Robert Justice Paulette, Guy Robert Scott

Professional Degree Theses

"This thesis is based upon the data assembled and engineering studies made preliminary to the design of a project for the protection of the City of Salina, Kansas, and its environs, from the overflow waters of the Smoky Hill River and Dry Creek, a small stream paralleling the river, and to a lesser extent, from the overflow waters of the Saline River and Mulberry Creek. These data and studies, together with recommendation for the project and preliminary estimates of cost, were included in a report to the City of Salina in October, 1929, prepared jointly by R.J. Paulette, then engineer …

Highway Bridge Design And Construction In Missouri, James Lingan Pasley

Professional Degree Theses

"The design and construction of highway bridges is a subject so broad and includes so many different specialized branches of engineering that volumes would be required to discuss the matter in any detail. With this in mind, the writer will attempt to cover in the following paper only a brief outline of the different phases of the work and to show how a number of the special problems are handled by the Bureau of Bridges of the Missouri State Highway Department. The writer, having had seven years experience as detailer, designer, engineer of construction assignments, and chief draftsman with this …

Rainfall-Runoff Studies For Typical Blocks In St. Louis, Frank Leroy Flynt

Professional Degree Theses

"The following paper may be considered as a progress report on one phase of a study, now being made by the writer, of the rainfall and runoff records which have been collected over a long period of years under the direction of Mr. W. W. Horner, Chief Engineer of Sewers and Paving of the City of St. Louis. The mass of data which has been collected during this time is of considerable volume and even the information applicable to the single phase of the investigation discussed in the following pages, which is the runoff from typical city blocks, has not …

The Public Health Engineer's Part On A Health Program, Walter Eric Casey

Professional Degree Theses

"In this work the Public Health Engineer should not be confused with the Sanitary Engineer as the term is commonly used today. The Sanitary Engineer is primarily a designer or builder. He is, in fact, a civil and hydraulic engineer specializing in a rather restricted field, confined for the most part to works relating to municipal water supply and sewage. The Public Health Engineer on the other hand is primarily a student and worker in the field of public health. The range of his activities is wider, and his training and knowledge are of essentially different character. It is not …

Preparation And Use Of Maps For Highway Purposes, Homer A. Hollingshead

Professional Degree Theses

"The Illinois highway system consists of about 10,000 miles of primary (state) roads, and 20,000 miles of secondary (county) roads.

The preparation of plans for a primary and secondary highway system of such size is an obvious step prior to construction and maintenance.

In order to coordinate administration, location, surveys, right of way, construction, maintenance, traffic, legal and political activity, maps of various scales and types are required.

This treatise will consider the types and classes of maps used by the state of Illinois for the purposes mentioned"--Part I.

A Study Of Water Supply Districts In St. Louis Where Excessive Waste Of Water Has Occurred, Randall Anthony Scheer

Professional Degree Theses

"The City of St. Louis contains within its city limits, according to the latest census, 870,000 people. The City is supplied with filtered water from two sources, one on the Mississippi River at the Chain of Rocks and the other on the Missouri River at Howard Bend. This water is distributed to consumers through 1,170 miles of water pipe and 147,912 service taps. Included in this distribution system are 14,334 fire hydrants and 16,884 valves. Every pipe joint, every fire hydrant, every valve and every plumbing fixture is a potential source of leakage, and it has become necessary to develop …

Investigation Of Continuous Beams With Varying Moment Of Inertia By The Method Of Conjugate Points, Russell Arthur Bryant

Professional Degree Theses

"This design represents the application to a practical example of a rapid and direct graphic solution of the relation expressed by the Theorem of Three Moments. This method for obtaining moments in continuous beams eliminates the necessity of using arbitrary coefficients and gives the engineer an opportunity to exercise his ingeniuty [sic] and judgment toward obtaining efficiency and economy. The use of prescribed coefficients for continuous beams makes the design mechanical and unscientific and results in moments which may be 50% too small or 60% too large"--Introduction, leaf 1.

Stress Investigation And Design Methods For Composite Beams Consisting Of Concrete Slabs On Steel I-Beams, Hjalmer T. Person

Electronic Theses and Dissertations

The term, reinforced concrete, as generally used, is applied to that type of construction in which steel rods are imbedded in concrete members. In these members the steel and concrete are considered to act as a unit and both are assumed to be effective in developing the resisting moment of the beam.

A Study Of Influence Line Analysis Of Stresses In A Cantilever Steel Highway Bridge, Lawrence King Snyder

Masters Theses

"As its name implies, this thesis introduces to the reader the basic conceptions and principles of the use of influence line analysis of the structural theory relating to calculation of stresses in a steel cantilever bridge truss"--Preface, page i.

Investigations Of Diversion On The Lower Mississippi River, Elmer John Sperling

Masters Theses

"The purposes of this investigation were severally as follows: (a) To determine the feasibility of digging pilot channels to scour out channels through the Beouf and Atchafalaya basins of sufficient size to handle the project flows contemplated for these basins in time of superflood. (b) To determine the best forms of the pilot channels and the best approximate dimensions. (c) To determine velocities conducive to erosion, transportation, and deposition; the manner and rate of enlargement under below-bank, bankful, and overbank flows; and the character of trace to be expected after enlargement of the proposed channels. (d) To investigate any suggested …