Engineering Commons^™

Camber Design Study For Concrete Pipe Culverts, Aubrey D. May

Kentucky Transportation Center Research Report

When a pipe culvert is constructed on or near the natural ground surface and covered by a highway fill or embankment, the weight of the embankment compresses and consolidates the foundation soil, settlement occurs, and the culvert subsides or sags below the original line as illustrated in Fig. 1. The amount of settlement depends, of course, upon the fill height or load, the depth of foundation soil, and the susceptibility of the foundation soil to consolidation. In addition, and toward the toes of the embankment, the structure may tend to lengthen. It may lengthen slightly, however, simply because the distance …

Interim Status Of Tire Service Life Study, William B. Drake

Kentucky Transportation Center Research Report

The service life of selected, most commonly used tire sizes installed on Highway Department trucks and sedans will be evaluated. Major manufacturers and other manufacturers (later defined) products will be studied to determine average service life. One half or four highway districts (1, 2, 7 and 8) will be involved in the project and the trucks used will be selected or assigned at random in these districts (The sedans used in the study will be Central Office pool vehicles). A progress record for each tire and use record for each vehicle with regular report or measurement times to be specified …

Limestone Fine Aggregate In Portland Cement Concrete, George R. Laughlin

Kentucky Transportation Center Research Report

Limestone is classified as a carbonaceous sedimentary rock. In general, the term is applied only to those rocks in which the carbonate fraction exceeds the non-carbonate fraction. The carbonate may be calcite and/or dolomite. In addition to the primary constituents, there are contaminating minerals such as quartz, clay minerals, chalcedony (chert and flint), pyrite, feldspars and organic matter. The clay minerals are probably the most deleterious contaminates in carbonate rock.

Investigation Of Concrete Pavement, Us 60 Between Versailles And Frankfort, William B. Drake

Kentucky Transportation Center Research Report

A preliminary examination was made of the subject pavement on November 2, 1959, by James H. Havens and the writer, of the Research Division, and J. S. Riley, Construction Division. The discover of deleterious matter in the pavement was the major reason for the inspection. Foreign objects could be found imbedded in the concrete pavement throughout the project. However, there were a great many more in two sections, each about one quarter of a mile long, than on the rest of the project. The objects observed were wood, cloth, metal and soil. However, there was decided prevalence of soil. The …

Morton’S Gap Culvert-Pipe Installation, James H. Havens

Kentucky Transportation Center Research Report

The attached report, "Interim Performance Report on Morton's Gap Culvert Pipe Installation", by James H. Havens, is primarily a listing of the status of the condition of pipe still in the test and the date of failure or removal of the other sections.

Mr. Havens has prepared as background information, a brief record of the Department's practices involving pipe use for the past 10 years. He has begun with the Research Division's first study into pipe damaged by the corrosive action of acid water. This information is presented primarily because of its significance in the development of the culvert pipe …

Specification For The Design Of Light Gage Cold-Formed Steel Structural Members, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

A Study Of The Inlet Characteristics And Entrance Losses Of Pipe Culvert With A Flush Mounted, Sharp Edged Inlet, Luke Lea Callaway Jr.

Masters Theses

"Of all hydraulic structures, culverts are by far the most numerous. Lack of understanding of the functioning of culverts has resulted in many of them being implaced improperly and as a result, they function with less efficiency and at reduced capacity. Much has been written regarding the flow of water in open channels, culverts included, but little has been done regarding inlet conditions. It is necessary in the design of culverts, as with any other structure, that conditions which govern the operation of the structure be established. This paper is a study of the inlet conditions of a circular cross …

Shearing Shed Design, W L. Mcgarry, D. A. Young, M. Butler

Journal of the Department of Agriculture, Western Australia, Series 4

PLANNING the layout of a shearing shed requires a good deal of thought to ensure its maximum working efficiency.

If the contemplated structure is to serve the dual purpose of storage-shearing shed, it is better to plan a shearing shed that can be used for storage, rather than a storage shed with a view to its utilisation as a shearing shed.

A Useful Farm-Made Roller, V E. Western

Journal of the Department of Agriculture, Western Australia, Series 4

A very serviceable compacting roller can be constructed at little expense by using discarded truck tyres.

The roller described here has an overall width of 5 ft. 3 in. and carries seven 9.00 x 24 semi-trailer tyres which had been discarded when the treads were worn smooth.

Department Of Agriculture Moved To South Perth, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

After more than half a century in the historic but time-worn building, one of few adorned with the British Government crest of the Lion and the Unicorn, on the Eastern side of government gardens in St George's Terrace, the Departmnet of Agriculture has been transfred to a new location in South Perth.

Overcoming Stock Watering Problems In The Kimberleys, B Swan

Journal of the Department of Agriculture, Western Australia, Series 4

ONE of the ever-present problems of the pastoral areas is that of providing: watering-points in reasonably close proximity to the grazing areas.

All too frequently, the country on the river frontages and that in the vicinity of the water-holes becomes eaten out and although there may be ample feed on other portions of the run, it is too far distant from the available water to be effectively utilised.

The Burnett Control Gate For Irrigation Channels, B Swan

Journal of the Department of Agriculture, Western Australia, Series 4

THIS type of check-gate for use in irrigation ditches, was evolved on the Kimberley Research Station and has definite advantages over wooden or concrete structures in that it is termite-proof and can be removed and replaced in a few minutes to permit of the channel being cleaned out by straight runs with modern machinery.

Strength And Volume Change Characteristics Of Bituminous Mixtures : Technical Paper, James Hamilton Schaub, William Harner Goetz

JTRP Technical Reports

No abstract provided.

Irrigation In Western Australia : Report On Government-Controlled Areas : 1958-59, H K. Gibsone

Journal of the Department of Agriculture, Western Australia, Series 4

IRRIGATION in the south-western portion of Western Australia is mainly confined to the coastal plain west of the Darling Range where the three main irrigation districts of Harvey, Collie and Waroona have been established by the State Government.

The Government-controlled irrigation areas extend southward from Waroona (70 miles from Perth) to Dardanup (120 miles from Perth) and have an average width of about five miles.

A Method Of Design For Spiral Reinforced, Eccentrically Loaded, Concrete Columns, Lloyd O. Senter

Masters Theses

"This thesis presents a method of designing spiral reinforced, eccentrically loaded, concrete columns on the basis of the 1957 American Association of State Highway Officials specifications.

Equations from AASHO, in conjunction with equations derived in this thesis, are programmed for and solved by the IBM 650 digital computer. The data obtained from the computer is plotted such that, given the normal load and moment on a column, the minimum required area or reinforcing steel may be read directly from the graph.

The derivation or equations, the computer program, and the graphs are included in the thesis"--Introduction, page 1.

Water Resources Development -- An Analysis Of Economic Justification Practices Of The Corps Of Engineers, Kerwood W. Barrand

Masters Theses

"Presented herein is a brief analysis of the economic justification practices of the Corps of Engineers as commonly implemented in proposals concerning water resources projects. Where applicable, recommended methods are compared to similar methods advocated for, and accepted by, private engineering firms in similar situations.

The major problem exists in the lack of a profit motive in programs undertaken with the use of public funds. However, a profit can be said to have been realized in public works programs if the total benefits of the programs to all the people exceed the costs of these programs and, further, if the …

The Conducting Sheet Analogy For Laplace And Poisson Equations, Ronald Edward Volker

Masters Theses

"This investigation determined the accuracy to be expected with conducting sheet analogy solutions for Laplace and Poisson equations using simple and relatively inexpensive instrumentation. Several problems were solved experimentally and compared to known theoretical solutions to check variables in the technique and the accuracy of the experimental solution. It was found that if proper procedures are followed, solutions can be obtained rather rapidly and with an error of less than 5% which compares favorably with accuracy obtained by other investigators with more complex, precise equipment"--Abstract, page 2.

Effect Of A Lime-Cement Additive On The Physical Properties Of A Podzolic Clay Soil, Raymond H. Frankenberg

Masters Theses

"The object of this research is to obtain data and information from laboratory tests concerning the effect of combined lime and cement additives on the physical properties of illitic clay soils"--Introduction, page 3.

The Evaluation Of The Influence Of Large Aggregate On The Permeability Of Single-Grained Soils, Edward Clayton Grubbs

Masters Theses

"Each year many earth fill structures are designed and built with the primary purpose of impounding water. As these structures are only relatively impervious, engineers must consider the control of seepage in design. In order to predict seepage, the engineer must have knowledge of the potential flow or water through the earthen structure. He is, therefore, faced with the problem of determining a coefficient of permeability for use in design calculations.

The coefficient of permeability is easily enough determined for fine-grained materials. However, in construction it is very rare to find proper fill material which does not include quite a …

Properties Of Air-Entrained Concrete At Early Ages, Ugur Ozoguz

Masters Theses

"This study, entitled "Properties of Air-Entrained Concrete at Early Ages" concerns a group of tests designed to provide quantitative information regarding the effect of entrained air on the strength and durability of concrete before it reaches its 28 day strength.

Experiences in the field and laboratories have demonstrated that the addition of a moderate amount of air to any concrete mix will bring a marked increase in resistance to the disintegrating effects of freezing and thawing.

There have been extensive studies made on the subject of durability of air entrained concrete. Most of these studies were based on the effect …

Effects Of Co2 On The Strength Of Lime Treated Clay Soil, Tuncer Karakurt

Masters Theses

“A large number of the difficulties encountered in highway work are due to the variable nature of soils. In addition to its variable nature, soil is a difficult material to deal with because of the complexity of its physical and chemical properties. From prehistoric times the construction of a satisfactory foundation has been one of the greatest problems facing the engineer and builder. Even though the needs of scientific methods were necessary far earlier, the study of soils as a construction material was scientifically given attention to only during the last three decades. Soil science being so young there are …

Effect Of Leaching On The Strength Properties Of A Hydrated Lime-Cement Stabilized Soil., Yurdakul Osman Ulugonul

Masters Theses

"The stabilization of soil has been carried on since early historic times. The Romans used lime and volcanic ash as additives for this purpose. After the discovery of cement and its property of bonding soil particles it became one of the essential additives in the soil stabilization field. Many other kinds of additives have been developed and are being used today for soil stabilization.

A question that arises through the increasing use of stabilizers in soil is whether the changes that are effected are of a temporary or permanent nature. Changes may occur from the degradation of the stabilized soil …

A Study Of The Feasibility Of Stabilizing Putman Soil With Hydrated Lime And Portland Cement In Combination, John Henry Kern

Masters Theses

"This paper is the report of a feasibility study of the combined use of hydrated lime and portland cement to stabilize the troublesome Putnam soil of northern Missouri. In its natural state, this soil is highly plastic, possesses great shrinkage and swell characteristics when the moisture content is changed and is classified as an A-7-5 soil by the A. A. S. H. O. Standards for the Classification of Highway Subgrade Materials.

During the course of this investigation, the following tests were performed: (1) Moisture-Density Relationships for soil with admixtures; (2) Triaxial Compression Test; (3) Unconfined Compression Tests; (4) Freeze-Thaw Tests; …

A Study Of The Reaction Of Hydrated Lime With Pure Clay (Kaolin) In Clay Stabilization, Chiyyarath Velayudhan Girijavallabhan

Masters Theses

"The work presented is the investigation of the reaction of pure Kaolinite clay with hydrated lime in clay stabilization. Pure Kaolin clay, ranging from one micron to five microns in size, was mixed with calcium hydroxide in the form of a paste. These mixtures were permitted to react for varying periods of time. An attempt was made to separate the lime from clay lime mixture by density separation using a mixed solution of carbon tetrachloride and tetrabromoethane. Since the above method failed because of the formation of a yellow gelatinous suspension, the lime was removed by washing the clay lime …

Investigation Of Economic Design Procedure For A Rigid Frame, Richard S. Groner

Masters Theses

"This work presents an analysis of various arrangements of component parts of a rigid frame. From this analysis a procedure is indicated for a logical choice of member sizes for a first trial selection of a frame for given loading conditions. The first trial solution yields a frame which is in the range of an economical design"--Abstract, page 2.

Deflections Of Two-Way Slabs, Gerald C. Godzwon

Masters Theses

"A reinforced concrete member is by no means a truly elastic member, hence all ordinary deflection calculations relating to it, whichever method, are approximate. By the use of model study actual reinforced concrete slab models, of different end conditions, were built and tested for deflections under uniform loadings. Theoretical and actual deflection of reinforced concrete slabs are compared. The results of these tests indicate that the theoretical deflection equations may be 60 to 80 percent in error when applied to reinforced concrete slabs"--Abstract, page 2.

Designing Fine Bituminous Mixtures For High Skid Resistance, Jack E. Stephens, William Harner Goetz

JTRP Technical Reports

No abstract provided.

Locating Slippery Highway Sites By Accident Analysis : Technical Paper, Vergil G. Stover, Harold L. Michael

JTRP Technical Reports

No abstract provided.

Strength And Volume Change Characteristics Of A Bituminous Mixture Under Triaxial Testing, James Hamilton Schaub

JTRP Technical Reports

No abstract provided.

Evaluation Of Major Urban Intersections, William Walter Schenler

JTRP Technical Reports

No abstract provided.