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- <p>Air-entrained concrete -- Testing<br />Pavements (1)
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Articles 1 - 29 of 29
Full-Text Articles in Engineering
A Field And Laboratory Examination Of Weathering Effects On Petroleum And Blended Petroleum-Natural Asphalts In Paving Mixtures, Ellis G. Williams
A Field And Laboratory Examination Of Weathering Effects On Petroleum And Blended Petroleum-Natural Asphalts In Paving Mixtures, Ellis G. Williams
Kentucky Transportation Center Research Report
The relative merits of various asphalts and asphaltic materials have been the subject of considerable controversy almost from the beginning of flexible pavement construction in this country. In this early period petroleum asphalt had not yet entered the picture and controversy centered about naturally occurring products such as Trinidad natural asphalt and impregnated stones. In 1876 Congress directed that comparative service tests be made on a rock asphalt* and a sheet asphalt containing Trinidad natural asphalt. The sheet asphalt was considered the more successful of these and thus Trinidad natural asphalt became firmly established as a paving material in this …
Hydraulic Model Studies Of Culvert Operation, Eugene M. West
Hydraulic Model Studies Of Culvert Operation, Eugene M. West
Kentucky Transportation Center Research Report
Since 1951 the Division of Research has been engaged in a comprehensive study of highway drainage problems. This study has included special investigations of rainfall and runoff, drainage structures in use and the practices used in their design, culvert hydraulics, and other relevant investigations. To date, reports have been published concerning runoff and rainfall variables (1 and 2)* and the effects of barrel roughness upon culvert operation (3), together with the preparation of a drainage manual for the use of Highway Department engineers and consultants.
The most recent special project, part of the over-all study, has dealt with the effects …
Analysis Of Pavement Riding Quality: A Triaxial Evaluation Of Pavement Roughness, William S. Foy
Analysis Of Pavement Riding Quality: A Triaxial Evaluation Of Pavement Roughness, William S. Foy
Kentucky Transportation Center Research Report
For the last twenty-five years considerable research has been directed toward developing reliable equipment for evaluating pavement roughness. Since roughness inhibits passenger riding comfort and safety, as well as inducing vehicle deterioration, the determination of the features that cause roughness would indicate possible improvements in pavement design, materials, construction practices and equipment. For example, certain types of base design might be found to produce smoother surfaces than others; and a construction practice such as a blade-spread leveling course might result in more uniform pavements. Then too, evaluation of pavement roughness would permit relative comparison of pavements as one of several …
Model Study Of Flow Through Culverts, Eugene M. West
Model Study Of Flow Through Culverts, Eugene M. West
Kentucky Transportation Center Research Report
Within the past four years, the Highway Materials Research Laboratory has expended considerable effort upon investigating and developing new approaches to the problem of estimating the quantity of runoff from small drainage areas. Particular interest has been given to areas of sizes that require culverts or small bridges with less than twenty feet of span. The results of these studies have been included in the Drainage Manual recently adapted for use by the Department of Highways.
A Hydraulic Analysis Of The Channel Relocation Of Stephens Creek, Eugene M. West
A Hydraulic Analysis Of The Channel Relocation Of Stephens Creek, Eugene M. West
Kentucky Transportation Center Research Report
Recently Mr. J.O. Cornell requested the assistance of the Drainage Section of the Research Laboratory in investigating the channel that the U.S. Corps of Engineers has designed in conjunction with the raising of Dam No. 39 and the changing of the locking system. The principal reason for this investigation was to determine the effect, if any, that this project will have upon the five-span highway bridge on U.S. 42, located approximately two thousand feet upstream from the confluence of Stephens Creek and the Ohio River and at the upstream end of the new channel.
Kentucky Soils: Their Origin, Distribution And Engineering Properties, Robert C. Deen
Kentucky Soils: Their Origin, Distribution And Engineering Properties, Robert C. Deen
Kentucky Transportation Center Research Report
Soil is the product of the action of climate and living organisms upon parent materials, as conditioned by local relief. The length of time over which these forces are operative is of great importance in determining the properties of the final soil product. Altogether, there are five principal factors in soil formation: 1.) climate, 2.) biological activity, 3.) nature of the parent material, 4.) topography, and 5.) time.
The major differences in the soils of Kentucky result chiefly from differences in 1.) the rocks from which the parent materials were derived and 2.) the topographic position of the materials.
The Application Of Kentucky Flexible Pavement Design Method To Washo Test Road Conditions, William B. Drake
The Application Of Kentucky Flexible Pavement Design Method To Washo Test Road Conditions, William B. Drake
Kentucky Transportation Center Research Report
In the summer of 1952 the Flexible Pavement Design Committee of the Highway Research Board began the sponsoring of a comparative design project. Several state highway departments and other organizations were invited to submit flexible pavement designs, based upon their own current practices, for the subgrade, materials, and traffic conditions of the Western Association of State Highway Officials (WASHO) test road. This road was being constructed in Malad, Idaho, through the participation of 13 western states and the Bureau of Public Roads. The Kentucky Department of Highways was one of the organizations invited to participate in the comparative design project.
A Study Of The Properties And Performance Of Kentucky (Natural Sandstone) Rock Asphalt, James H. Havens, Ellis G. Williams
A Study Of The Properties And Performance Of Kentucky (Natural Sandstone) Rock Asphalt, James H. Havens, Ellis G. Williams
Kentucky Transportation Center Research Report
Kentucky (natural sandstone) rock asphalt derives its esteem as a highway surfacing material from its uniform appearance on the road, its riding characteristics, and the fact that it affords the highest protection against skidding (slipperiness) of any of the paving materials now generally available (see Appendix IV). The usual methods of handling, steaming, laying and spreading offer some of the conveniences and advantages of a ready-to-use material. Although its service history during the past 50 years has been generally favorable, there has also been a certain amount of risk involved in its use, particularly in recent years on roads sustaining …
Light Gage Cold-Formed Steel Design Manual, American Iron And Steel Institute
Light Gage Cold-Formed Steel Design Manual, American Iron And Steel Institute
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
No abstract provided.
Sanitary Engineering And The Small College, John William Clark Jr.
Sanitary Engineering And The Small College, John William Clark Jr.
Professional Degree Theses
"There is an unprecedented need for sanitary engineers. College students should be informed of the need and of this general field at an early stage in their education so that proper guidance can be given in the selection of electives to those interested.
Colleges must re-appraise their sanitary engineering offering and expand their programs to meet the needs of society.
One of the most difficult jobs facing an expanded sanitary engineering program is securing the students with proper background. Most of the freshmen entering college have some ideas as to what vocation they want to strive toward. This idea of …
Design And Development Of Cantilevered Flexural Pivots For Use In Self-Leveling Surveying Instruments, Rolland Lee Hardy
Design And Development Of Cantilevered Flexural Pivots For Use In Self-Leveling Surveying Instruments, Rolland Lee Hardy
Professional Degree Theses
"Problem: The problem to be covered in this dissertation is broadly stated in its title, namely, the design and development of cantilevered flexural pivots for use in self-leveling surveying instruments. For clarification, the definitions of the significant phrases in the title which may be completely new or unknown to the reader are covered in this introduction. Because the dissertation actually covers a series of problems, each will be defined more specifically as they are covered in the discussion"--Introduction, page 1.
The Use Of Urban Characteristics In Estimating Internal Travel Patterns, John Wallace Barr
The Use Of Urban Characteristics In Estimating Internal Travel Patterns, John Wallace Barr
JTRP Technical Reports
No abstract provided.
Correlation Of Weir Crest Depth, Froude Number, H/P Ratio, Weir Thickness, Paul Harrawood
Correlation Of Weir Crest Depth, Froude Number, H/P Ratio, Weir Thickness, Paul Harrawood
Masters Theses
"1. The Froude number criterion for weir flow was shown to be sound and accurate by experimental verification of the theoretical correlation of Froude number and critical depth. It was proved that sub-critical, critical and super-critical flows are correctly identified by the Froude number.
2. In order to accurately determine the Froude number, the actual flow section at the weir crest must be known. Because of end contractions, it does not have the same dimensions as the weir opening. For the Cipoletti weir, it is the product of the length of the crest and the crest depth, i.e., A= by. …
Determination Of The Effect Of Air-Entraining Agents On Certain Physical Properties Of Concrete At Early Ages, James Arthur Spilman
Determination Of The Effect Of Air-Entraining Agents On Certain Physical Properties Of Concrete At Early Ages, James Arthur Spilman
Masters Theses
"Air entrained concrete over the past eighteen years has received national recognition as a result of its satisfactory performance in highway concrete pavements and other concrete structures subjected to outside exposure.
Numerous highway departments over the entire United States have laid test slabs made of air entrained concrete. Among those to date are Pennsylvania, New Jersey, New York, Connecticut, Massachusetts, Vermont, Maine, Illinois, Missouri and California. The primary purpose in building these test slabs was to investigate their durability or resistance to freezing and thawing and the action of various salts on air entrained concrete. The results of the test …
Light Gage Steel Connections With High-Strength, High-Torqued Bolts, George Winter
Light Gage Steel Connections With High-Strength, High-Torqued Bolts, George Winter
CCFSS Library (1939 - present)
The usual methods for designing bolted connections of conventional steel structures must be modified for application to thin-walled, light-gage steel construction. This is so because the ratios of bolt diameter to steel thickness in light-gage construction are generally much larger than those customary in conventional construction. In a previous paper [1] the writer has published the results of 547 tests of light-gage steel connections with ordinary "black" bolts. The results could be expressed in four simple equations for determining failure loads which, when used with an appropriate factor of safety, can serve as a safe basis for design. It is …
Permeability And Absorptivity Of Indiana Limestone Coarse Aggregates, William Lee Dolch
Permeability And Absorptivity Of Indiana Limestone Coarse Aggregates, William Lee Dolch
JTRP Technical Reports
No abstract provided.
Road Roughness Measurements On Indiana Pavements, Frank Melvin Holloway
Road Roughness Measurements On Indiana Pavements, Frank Melvin Holloway
JTRP Technical Reports
No abstract provided.
Physical Properties Of Concrete At Early Ages, Peter G. Hansen
Physical Properties Of Concrete At Early Ages, Peter G. Hansen
Masters Theses
"One of the principal types of heavy duty pavements in use in Missouri and in many other states is that known as rigid type portland cement concrete.
There have been two major trends in this type of pavement design. One of these trends is the use of short slabs, i.e., 15 to 25 feet, with no reinforcement. Another trend consists of concrete slabs containing distributed reinforcement such as wire mesh or reinforcing bars with joints occurring at fairly large intervals of 50 to 100 feet. As loads on the highways have increased the designers have increased the slab thicknesses and …
A Concrete Pavement Without Transverse Joints [Jan. 1956], Dave H. Sawyer
A Concrete Pavement Without Transverse Joints [Jan. 1956], Dave H. Sawyer
Kentucky Transportation Center Research Report
For a period of more than six years the Research Division has had under observation the concrete pavement built without transverse joints on U.S. 31-W between Franklin and the Tennessee Line. The primary reason for observing performance year after year is to record the incidence of cracks and other more serious defects; but also the grooving of cracks in 1949 and the application of different joint sealing materials became an important part of the observations.
The Strength Of Bituminous Mixtures And Their Behavior Under Repeated Loads, Leonard E. Wood, William Harner Goetz
The Strength Of Bituminous Mixtures And Their Behavior Under Repeated Loads, Leonard E. Wood, William Harner Goetz
JTRP Technical Reports
No abstract provided.
Report No. 2 On The Skid Tests Performed On Experimental Federal Aid Project Number F-147(6), Frank Melvin Holloway
Report No. 2 On The Skid Tests Performed On Experimental Federal Aid Project Number F-147(6), Frank Melvin Holloway
JTRP Technical Reports
No abstract provided.
Progress Report No. 3 On The Skid Resistance Study Experimental Federal Aid Project No. F-147(6), John Wallace Shupe
Progress Report No. 3 On The Skid Resistance Study Experimental Federal Aid Project No. F-147(6), John Wallace Shupe
JTRP Technical Reports
No abstract provided.
Progress Report No. 4 On State Highway Needs In Indiana, Arthur K. Branham, Donald O. Covault, Harold L. Michael
Progress Report No. 4 On State Highway Needs In Indiana, Arthur K. Branham, Donald O. Covault, Harold L. Michael
JTRP Technical Reports
No abstract provided.
Plastic Moisture Barriers For Highway Subgrade Protection, J. Richard Bell, Eldon J. Yoder
Plastic Moisture Barriers For Highway Subgrade Protection, J. Richard Bell, Eldon J. Yoder
JTRP Technical Reports
No abstract provided.
Effect Of Crushed-Gravel Fine Aggregate On The Strength Of Asphaltic Surfacing Mixture, Robert P. Lottman, William Harner Goetz
Effect Of Crushed-Gravel Fine Aggregate On The Strength Of Asphaltic Surfacing Mixture, Robert P. Lottman, William Harner Goetz
JTRP Technical Reports
No abstract provided.
Road Roughness Measurements On Indiana Pavements, Frank Melvin Holloway
Road Roughness Measurements On Indiana Pavements, Frank Melvin Holloway
JTRP Technical Reports
No abstract provided.
The Application Of Airphotos To Foundation Problems, Bruce Halsey Moore
The Application Of Airphotos To Foundation Problems, Bruce Halsey Moore
JTRP Technical Reports
No abstract provided.
Progress Report No. 1 On The Skid Resistance Study, Experimental Test Section U.S. 421 South Of Kirklin, John Wallace Shupe
Progress Report No. 1 On The Skid Resistance Study, Experimental Test Section U.S. 421 South Of Kirklin, John Wallace Shupe
JTRP Technical Reports
No abstract provided.
Annual Report Of The Assistant Director, 1955-1956, Harold L. Michael
Annual Report Of The Assistant Director, 1955-1956, Harold L. Michael
JTRP Technical Reports
No abstract provided.