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Articles 5881 - 5898 of 5898

Full-Text Articles in Transportation Engineering

Outline Of Proposed Study Of Sands Used As Concrete Fine Aggregates, Kentucky Highway Materials Research Laboratory Mar 1946

Outline Of Proposed Study Of Sands Used As Concrete Fine Aggregates, Kentucky Highway Materials Research Laboratory

Kentucky Transportation Center Research Report

This investigation is being made for the purpose of evaluating fine aggregates for concrete in which the percentages of fines, finer than the No. 50 and the No. sieves, are increased over that in the normal commercial sands meeting the present specifications for Class "A" concrete. It is a continuation of the studies made in Research Projects C-14 and C-15 (Reports submitted January, 1946), but enlarged to include physical tests on sand, and tests on mortar specimens, as well as the usual tests on concrete specimens.


An Evaluation Of Density And Stability Tests On Bituminous Mixes, Cary Burns, L. E. Gregg Feb 1946

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 Feb 1946

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 …


A Study Of The Effect Of Fine Aggregates On The Durability Of Concrete, S. T. Collier Jan 1946

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 Jan 1946

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 …


An Outline Of Prospective Research For The Highway Materials Research Laboratory, L. E. Gregg Dec 1945

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.


Summary Report Of Concrete Investigations In Research Projects C-1, C-2, C-3, And C-17, S. T. Collier Dec 1945

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 …


Stability Investigation Of Bituminous Pavements, Kentucky Highway Materials Research Laboratory Mar 1945

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 Mar 1945

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 …


Bituminous Construction With Sandstone Aggregate Johnson County Project, Kentucky Highway Materials Research Laboratory Jan 1943

Bituminous Construction With Sandstone Aggregate Johnson County Project, Kentucky Highway Materials Research Laboratory

Kentucky Transportation Center Research Report

On April 25th detailed notes wore made on each station of this project, and it was decided that samples should be taken to represent each type of surface on the project. Seventeen samples ware selected as representative of the different types of mixes, and on May 6th and 7th samples fifteen inches in diameter were drilled from this project. These samples were selected to represent the variations in gradings and bitumen content.


Report Of Cooperative Investigation Of Joint Spacing In Concrete Pavements, Louis Campbell Jan 1940

Report Of Cooperative Investigation Of Joint Spacing In Concrete Pavements, Louis Campbell

Kentucky Transportation Center Research Report

In order to aid in a final determination of a rational, economical, and practical jointing method for concrete pavement, and to obtain factual data for future construction, the Kentucky Department of Highway built 6.27 miles of experimental pavement during the summer of 1940. This project was one of those planned by the Public Roads Administration and the Portland Cement Association in cooperation with the various states.


A Traffic Survey Of The City Of Sioux Falls, South Dakota, George Everett Thompson Jan 1930

A Traffic Survey Of The City Of Sioux Falls, South Dakota, George Everett Thompson

Electronic Theses and Dissertations

How to control the traffic on the streets of our cities is becoming one of the most important problems of the present day. an urban community depends for its existence upon the transportation facilities both internal and external. The external transportation is necessary for a city's growth because food supplies and raw materials must be brought into the city and the commodities which are produced in the cities must be distributed to other places.


Biennial Report: Everglades Drainage District Engineering Department 1925-1926, F C. Elliot Jan 1927

Biennial Report: Everglades Drainage District Engineering Department 1925-1926, F C. Elliot

City and Regional Planning -- Florida

Report on Everglades drainage and other engineering projects 1925-1926, published 1927


The Erection Of Highway Bridge Over Pitman Creek, Pulaski County, David Mccord Phelps Jan 1922

The Erection Of Highway Bridge Over Pitman Creek, Pulaski County, David Mccord Phelps

Archived Theses and Dissertations

No abstract provided.


Bridge Over Pitman Creek In Pulaski, David Mccord Phelps Jr. Jan 1922

Bridge Over Pitman Creek In Pulaski, David Mccord Phelps Jr.

Theses and Dissertations--Civil Engineering

Accounting of all aspects of the erection of the bridge over Pitman Creek in Pulaski County Kentucky.


A Report On "Relieving Traffic Congestion On The Southern Pacific Between Oregon City, Oregon And Woodburn, Oregon.", Henri Chomeau Dec 1921

A Report On "Relieving Traffic Congestion On The Southern Pacific Between Oregon City, Oregon And Woodburn, Oregon.", Henri Chomeau

Missouri School of Mines and Metallurgy Reports

The Division Engineer of the Portland Division, Southern Pacific Company, ordered the Signal Supervisor of the same division, to devise some improvements in the signal system in order to make train movements between Oregon City, Oregon and Woodburn, Oregon more rapid and relieve congestion over this part of the single-track steam line. The following system has been worked out by the Signal Department.


Underground Haulage, T. Roderick Noon Jun 1917

Underground Haulage, T. Roderick Noon

Bachelors’ Theses

The object of this discussion is to determine which would be the most economical and efficient of two forms of haulage, namely, mule and storage battery locomotive, based upon an output of four hundred and fifty tons of cleancoal per day, of eight hours.


Location, Construction, And Drainage Of Common Roads, Edward B. Summers Dec 1880

Location, Construction, And Drainage Of Common Roads, Edward B. Summers

Bachelors Theses

To write upon, and do justice to the subject of common roads, it is necessary that one should be familiar with every variety of them. The roads in some of the advanced and highly civilized communities are of a most admirable character; while in the new and thinly populated countries, they are found deficient in nearly all the attributes of good roads. Only a few kinds that may be in some of the most populous districts will be here designated.