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An Evaluation Of Density And Stability Tests On Bituminous Mixes, Cary Burns, L. E. Gregg

Kentucky Transportation Center Research Report

During the past three years the Highway Materials Research Laboratory has experimented with bituminous aggregate mixes in an attempt to determine the densities that can be obtained through certain methods of compaction and the stability of the resulting mixes. The several investigations have resulted in the preparation and testing of approximately six hundred individual samples, most of which were designed to provide information as a guide for specification on particular field projects.

Proposed Working Plan For A Study Of The Properties Of Coarse Aggregates, Kentucky Highway Materials Research Laboratory

Kentucky Transportation Center Research Report

Among the numerous materials used in the construction of highways probably none is more important or perplexing than coarse aggregate. Through past research and experience a group of procedures and specifications for selecting aggregates suitable for pavements has been developed. These acceptance tests deal almost entirely with physical properties such as gradation, soundness, absorption, abrasion, etc. However, recent data accumulated by field observations and surveys (1), (7), (8)* have indicated that some materials passing the specifications have undesirable properties which cause difficulties over a long period of time. Consequently, research directed toward a more thorough investigation of aggregates has become …

Nebraska Farm Building Data For Panhandle Counties Taken From U.S. Census, R. M. Loper

Department of Agricultural and Biological Systems Engineering: Faculty Publications

The Material given on the following pages was selected from united States Census data for the years indicated.

It has been arranged to permit analysis and comparison of building trends since 1900, both in the state and in individual counties. Such a study often reveals areas in which effective educational programs could be develol)ed and indicates the phases of such programs which are needed most.

Unfortunately, complete 1945 figures are not available yet, but space has been left for them so that they may be added when released by the Census Buroau.

Nebraska Farm Building Data For North-East Counties Taken From U.S. Census, R. M. Loper

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Fluctuation in the number of farms since the start of the century reflects economic trends, drouth effects and the results of increasing mechanization, particularly since 1935.

The 1945 figures also show the influence of land taken out of production for use as air bases, ordnance plants and ammuition depots. No doubt some of this will be returned eventually to agricultural uses. Since the buildings were removed from this land during the war some new sets probably. will be constructed when individual ownership is obtained again. Such activities present excellent opportunities for developing farmsteads efficiently and attractively arranged; buildings designed to …

Nebraska Farm Building Data For North-Central Counties Taken From U.S. Census, R. M. Loper

Department of Agricultural and Biological Systems Engineering: Faculty Publications

The Material given on the following pages was selected from United States Census data for the years indicated.

It has been arranged to permit analysis and comparison of building trends since 1900, both in the state and in individual counties. Such a study often reveals areas in which effective educational programs could be developed and indicates the phases of such programs which are needed most.

Unfortunately, complete 1945 figures are not available yet, but space has been left for them so that they may be added when released by the Census Bureau.

Nebraska Farm Building Data For South-Central Counties Taken From U.S. Census, R. M. Loper

Department of Agricultural and Biological Systems Engineering: Faculty Publications

The Material given on the following pages was selected from United States Census data for the years indicated.

It has been arranged to permit analysis and comparison of building trends since 1900, both in the state and in individuals counties. Such a study often reveals areas in which effective educational programs could be developed and indicates the phases of such programs which are needed most.

Unfortunately, complete 1945 figures are not available yet, but space has been left for them so that they may be added when released by the Census Bureau.

Nebraska Farm Building Data For South-East Counties Taken From U.S. Census, R. M. Loper

Department of Agricultural and Biological Systems Engineering: Faculty Publications

The material given on the following pages was selected from United States Census data for the years indicated.

It has been arranged to permit analysis and comparison of building trends since 1900, both in the state and in individual counties. Such a study often reveals areas in which effective educatinal programs could be developed and indicates the phases of such programs which are needed most.

Unfortunatel, complete 1945 figures are not available yet, but the space has been left for them so that they may be added when released by the Census Bureau.

A Study Of The Effect Of Fine Aggregates On The Durability Of Concrete, S. T. Collier

Kentucky Transportation Center Research Report

Research Projects C-14 and C-15 were set up as purely laboratory studies with the same objective; that is, to study the affect upon the strength and durability of normal portland cement concrete by supplementing portions of standard concrete sand with variable amounts of "Fine" sand (sands passing Size No. 30 sieve). This investigation is not correlated with any Highway Department field projects. Project C-14 was begun June 16, 1944 and test completed April 20, 1945. Project C-15 was begun August 2, 1944 and tests were completed August 1, 1945.

Bond Characteristics Of Commercial And Prepared Reinforcing Bars, S. T. Collier

Kentucky Transportation Center Research Report

Research Project C-18 was designed for the purpose of making comparisons of the bond characteristics of commercial and prepared bars of reinforcing steel for horizontal and vertical positions of casting. The data includes tests made for bars cast in concretes of bot low and high slumps. The project was started March 26, 1945, but is not complete to the extent as was originally planned, since only two of the five types of bars employed have been cast in high slump concrete.

The data presented in this report includes test results for eight sets of specimens designated as Series A through …

Summary Report Of Concrete Investigations In Research Projects C-1, C-2, C-3, And C-17, S. T. Collier

Kentucky Transportation Center Research Report

The data presented in this report were obtained in laboratory investigations of concrete mixes, the majority of which were correlated with Highway Department field projects. Practically all of this information has been recorded in vast reports on individual studies, but here these are combined and summarized in order to facilitate comnarisons between the results from tests similar in nature, and to provide wider distribution of these results.

Of the four research projects considered three were devoted to tests on beam specimens prepared in the field and sent to the Research Laboratory for analyses. The fourth was purely a laboratory study …

An Outline Of Prospective Research For The Highway Materials Research Laboratory, L. E. Gregg

Kentucky Transportation Center Research Report

The following outline and comments are intended to serve as a general guide for future endeavors of the Highway Materials Research Laboratory, and as a basis for discussion among Members of the Research Board. For the most part these will provide a structure within which the details of individual projects may be classified and from which the subject matter for separate studies may be drawn. By preparing such a plan, but recognizing the need for deviation when unforeseen situations arise, it is hoped that the possibilities for maintaining a comprehensive but well integrated research program may be enhanced.

School Of Civil Engineering, Cornell University Investigation Of Structural Properties Of Light Gage Steel Structural Members, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

SCOPE OF THIS INDEX This index gives complete information on the various features investigated in this program to date, the number of tests carried out under each heading and the particular reports which were issued on the respective phases of the work. The Index covers the Beam Progress Reports No. 1 to 40, the Beam Summary Reports No. 1 to 3 plus Addenda, the Stud Progress Reports No. 1 to 22 and the Stud Summary Reports No. 1 and 2 plus Addenda. It does not cover (a) the investigation on strength and properties of steel roof decks, (b) such additional …

Permability And Porosity Of Devonian Dolomites In Northwestern Montana, Jack W. Nordquist

Bachelors Theses and Reports, 1928 - 1970

The purpose of this investigation is to record data per­taining to porosity and permeability derived from physical tests performed on Devonian dolomites occurring in northwestern Montana, and to subsequently summarize the results obtained as an aid in determining the possibility of those dolomites being suitable reservoir rocks for oil and gas accumulation.

Vermiculite, Occurence, Character, And Concentration Of Mineral From The Pony District, Madison County, Montana, A. Saterdal

Bachelors Theses and Reports, 1928 - 1970

The purpose of this paper is to investigate the occurrence and character of the vermiculite deposits approximately four miles northwest of Pony; Madison County, Montana. The deposits are situated in rolling foothills at the northern end of the Tobacco Root Mountains.

Stability Investigation Of Bituminous Pavements, Kentucky Highway Materials Research Laboratory

Kentucky Transportation Center Research Report

This stability investigation was started by the Bituminous Division of the Highway Materials Research Laboratory, Lexington, Kentucky during the month of October, 1944, and was completed the first of March 1945. The purpose of this investigation was to develop information on the design and control of asphalt pavements. The data presented may be used to compare mixes made from commercial aggregates with mixes containing local aggregates. It is believed that sufficient amount of reliable data is presented in this report to enable the design engineer to use the Marshall stability equipment and testing procedure to select the best available aggregate …

Stability Investigation Of Bituminous Pavements, Kentucky Highway Materials Research Laboratory

Kentucky Transportation Center Research Report

This stability investigation was started by the Bituminous Division of the Highway Materials Research Laboratory, Lexington, Kentucky, during the month of October, 1944, and was completed thee first of March, 1945. The purpose of this investigation was to develop information on the design and control of asphalt pavements. The data presented may be used to compare mixes made from commercial aggregates with mixes containing local aggregates. It is believed that sufficient amount of reliable data is presented in this report to enable the design engineer to use the Marshall stability equipment and testing procedure to select the best available aggregate …

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT In the Thirty-eighth Progress Report a series of 118 tests was reported on web crippling under concentrated loads. These 118 tests which included 17 representative tests of the Twenty-fifth Progress Report were carried out for web crippling by loads on the span, by simple end reactions, by end reactions with additional loads on top flange, and by reactions of continuous supports with similar additional loads. Two formulas were developed from the entire series of tests which represented, for the two cases (loads on span, and reactions), all test results with satisfactory accuracy. However, only 8 …

The Solubility Of Zinc Ethyl Xanthate In Water, Thomas M. Mckenzie

Bachelors Theses and Reports, 1928 - 1970

A determination of the solubility of zinc ethyl xanthate was attempted by measuring the refractive index of a saturated solution of that salt. The small increment in refractive index effected by adding zinc ethyl xanthate to water in saturation quantities rendered measurements difficult and of dubious accuracy.

Hydrogen Overvoltage Of Cadmium Bismuth And Antimony Bismuth Alloys, Edwin W. Stevens

Bachelors Theses and Reports, 1928 - 1970

A method to measure hydrogen overvoltage was devel­oped and checked with metals of known overvoltage. Alloys of bismuth and antimony and of bismuth and cad­mium were prepared and their overvoltages determined.

The Electrodeposition Of Copper-Cobalt Alloys, Richard L. Dunn

Bachelors Theses and Reports, 1928 - 1970

An attempt was made to deposit a 50:50 copper-cobalt alloy from various sulfate electrolytes. No true 50:50 alloy was obtained but various mixtures of cobalt and copper rich crystals were deposited.

Report For Jacksonville Beaches Chamber Of Commerce, George W. Simons Jr

City and Regional Planning -- Florida

This is a report on Developing Jacksonville, Atlantic, and Neptune Beaches in 1944. Included is a letter of transmittal from Simons to Martin G. Williams, President, Jacksonville Beaches Chamber of Commerce. From: Arthur N. Sollee papers; and the George W. Simons, Jr. Planning Collection. PALMM

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT In the Twenty-fifth Progress Report a series of twenty-three tests was reported on web crippling under concentrated loads. On the basis of these tests the design requirements of section 4.9 of the Tentative Specifications (April 1944 edition) were written. The scope of these tests, however, was not broad enough to insure safe design stipulations for all important cases for the following reasons: (a) Of the twenty-three tests six were conducted with roller loading (zero bearing length), and therefore are not represetative of acutal conditions. This leaves only seventeen representative tests. (b) all tests were conducted …

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT This report contains the complete evaluation of test results of the I-beam tests reported on in the 33rd and 34th Beam Reports. In considering the results of this evaluation, two factors should be kept in mind which adversely affect the accuracy of results: (l) These beams were designed primarily to serve as control specimens for future channel tests. Their usefulness in verifying the equivalent width approach is somewhat impaired by the fact that the compression flanges represent only a rather small part of the total cross-sectional area. Thus, a moderate change of equivalent width of …

Fluorite Near Silver Bow, Montana, Charles V. Campbell

Bachelors Theses and Reports, 1928 - 1970

The wartime demand for fluorspar has caused renewed interest in fluorite deposits. Near Silver Bow, Montana, a deposit of massive, coarsely crystalline fluorspar, which has not been described in the literature, has attracted the atten­tion of the United States Geological Survey.

The Incompatibility Of Certain Alcohol And Soap Frothers, John Thomas Doherty

Bachelors Theses and Reports, 1928 - 1970

The purpose of this thesis is to elucidate this phenomena of frother incompatibility, and to offer an explanation based upon several divergent lines of investigation. The research was limited to four common frothing agents, namely, pine oil, n-amyl alcohol, sodium oleate, and sodium lauryl sulphate (Dreft).

Production Of Iron-Tin Compacts By Powder Metallurgy And A Synopsis Of Their Principle Properties, Matt C. Andrews

Bachelors Theses and Reports, 1928 - 1970

This thesis is concerned primarily with the production of metal powder compacts of iron and tin. In producing these compacts, the effects of process­ing variables on some of the essential properties of the pellets made were investigated.

Hardness And Electrical Resistivity Of Copper-Iron Powder Metal Compacts, Fred A. Foyle Jr.

Bachelors Theses and Reports, 1928 - 1970

Although powder metallurgical methods have been used for years to fabricate tungsten and platinum, very little scientific data have been recorded until the beginning of this century. A large percentage of all commercial production at present is based upon past practice rather than upon scientific knowledge.

Methods Of Determining Porosity And Spatter Losses Of Arc Welds, Campbell W. F. Funk

Bachelors Theses and Reports, 1928 - 1970

The original objective of this project was to determine the effect of varying current intensity and electrode coating composition upon the spatter losses and porosity of arc welds made by alternating current. This subject was suggested by the Welding Research Council of the Engineering Foundation, which is a clearing house for welding research in order to avoid du­plication of work.

Age Hardening Of Copper Antimony Alloys, William R. Stern

Bachelors Theses and Reports, 1928 - 1970

A large number of alloys of varying percentages of copper and antimony were prepared. These alloys were treated in various ways which might be expected to produce age hardening. The effect of cold working was studied in the range where the alloys were malleable.

The Electrodeposition Of Iron-Manganese Alloys, Raymond D. Magorien

Bachelors Theses and Reports, 1928 - 1970

An electrodeposition of an iron-manganese alloy was made from the same conditions determined by previous re­search. Various addition agents were experimented with in an attempt to produce better conditions for electro-deposition. It was found advantageous to add small a­mounts of sodium lauryl sulfate and ammonium sulfite to the electrolyte.