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Articles 6271 - 6300 of 6342

Full-Text Articles in Engineering

Study Of Acid Water Conditions In Kentucky, L. E. Gregg Dec 1949

Study Of Acid Water Conditions In Kentucky, L. E. Gregg

Kentucky Transportation Center Research Report

No abstract provided.


A Study Of The Effect Of Blended Coarse Aggregate On Air-Entrained Concrete Progress Report 3, S. T. Collier Nov 1949

A Study Of The Effect Of Blended Coarse Aggregate On Air-Entrained Concrete Progress Report 3, S. T. Collier

Kentucky Transportation Center Research Report

The purpose of this investigetion was to study the durability characteristics of a river gravel, used as coarse aggregate for concrete, with respect to four major fractions separated in accordance to their general mineralogical classification. This aggregate was from the same stock of Ohio River gravel that was used in earlier phases of this Project reported in 1947.

Since this gravel consisted of several rock types varying in mineralogic constituents, it was conceivable that poor performance could possibly be attributed to some undesirable fraction or fractions, rather than to the aggregate as a whole. The separation of this aggregate was …


Erosion Of Longitudinal 40in Corrugated Metal Pipe, James H. Havens Sep 1949

Erosion Of Longitudinal 40in Corrugated Metal Pipe, James H. Havens

Kentucky Transportation Center Research Report

No abstract provided.


Cooperative Investigation Of Joint Spacing In Concrete Pavements, S. T. Collier Jul 1949

Cooperative Investigation Of Joint Spacing In Concrete Pavements, S. T. Collier

Kentucky Transportation Center Research Report

During the summer of 1940 the Kentucky Department of Highways, with the Public Roads Administration participating, constructed 6.27 miles of investigational pavement as a cooperative research project on joint spacing. This project was one of six planned by the Public Roads Administration and the Portland Cement Association in cooperation with six highway departments. The five other states participating were California, Michigan, Hinnesota, Missouri, and Oregon. The project selected for this jointing study in Kentucky is in Daviess County, approximately six miles southeast of Owensboro, on Kentucky Route No. 71 (Layout map in Figure 1).

The experimental program was outlined for …


Report No. 2 On A Concrete Pavement Without Transverse Joints, William B. Drake Jul 1949

Report No. 2 On A Concrete Pavement Without Transverse Joints, William B. Drake

Kentucky Transportation Center Research Report

This is a report of observations and operations pertaining to a concrete pavement without the usual transverse joints constructed during the summer of 1949.

The project which is on U.S. 31-W is designated as Simpson County, FI-239, and runs from Station 9+11 at the Tennessee State Line to Station 311+40 at the city limits of Franklin (See Fig. 1 for layout). It consists of a 22-foot concrete pavement underlain by 1-1/2-inches of compacted crushed limestone (Size No. 10) for insulation and leveling. The slabs are of air-entrained concrete made with the agent interground in the cement. There is a longitudinal …


Allocation Of Funds For A Rural Highway Program, Emerson Beauchamp Mar 1949

Allocation Of Funds For A Rural Highway Program, Emerson Beauchamp

Kentucky's Annual Forum on Transportation

No abstract provided.


The Value Of Competent Engineering Supervision On County Roads, W. E. Wehrman Mar 1949

The Value Of Competent Engineering Supervision On County Roads, W. E. Wehrman

Kentucky's Annual Forum on Transportation

No abstract provided.


Consideration In Planning A Rural Highway Program, Dave M. Humble Mar 1949

Consideration In Planning A Rural Highway Program, Dave M. Humble

Kentucky's Annual Forum on Transportation

No abstract provided.


Engineering Registration, C. S. Crouse Mar 1949

Engineering Registration, C. S. Crouse

Kentucky's Annual Forum on Transportation

No abstract provided.


Introductory Talk [1949], J. Stephen Watkins Mar 1949

Introductory Talk [1949], J. Stephen Watkins

Kentucky's Annual Forum on Transportation

No abstract provided.


Use Of Polarized Headlights, Lewis W. Chubb Jr. Mar 1949

Use Of Polarized Headlights, Lewis W. Chubb Jr.

Kentucky's Annual Forum on Transportation

No abstract provided.


Highway Safety, James D. Hill Mar 1949

Highway Safety, James D. Hill

Kentucky's Annual Forum on Transportation

No abstract provided.


Maintenance And Drainage Facilities On Secondary And Rural Highways, Paul Owen Mar 1949

Maintenance And Drainage Facilities On Secondary And Rural Highways, Paul Owen

Kentucky's Annual Forum on Transportation

No abstract provided.


Standards Of Construction On Secondary And Rural Highways, A. L. Chambers Mar 1949

Standards Of Construction On Secondary And Rural Highways, A. L. Chambers

Kentucky's Annual Forum on Transportation

No abstract provided.


The Relationship Of Highway Building To Society, N. W. Daugherty Mar 1949

The Relationship Of Highway Building To Society, N. W. Daugherty

Kentucky's Annual Forum on Transportation

No abstract provided.


Design, Construction And Maintenance Of City Streets, W. W. Sanders Mar 1949

Design, Construction And Maintenance Of City Streets, W. W. Sanders

Kentucky's Annual Forum on Transportation

No abstract provided.


Specifications And Specification Writing, Dwight Tenney Mar 1949

Specifications And Specification Writing, Dwight Tenney

Kentucky's Annual Forum on Transportation

No abstract provided.


Soils And Subgrade Support For Highways, L. E. Gregg Mar 1949

Soils And Subgrade Support For Highways, L. E. Gregg

Kentucky's Annual Forum on Transportation

No abstract provided.


Selection And Acquisition Of Rights-Of-Way, Arthur Lewis Mar 1949

Selection And Acquisition Of Rights-Of-Way, Arthur Lewis

Kentucky's Annual Forum on Transportation

No abstract provided.


Address [1949], John A. Keck Mar 1949

Address [1949], John A. Keck

Kentucky's Annual Forum on Transportation

No abstract provided.


Highways And Highway Engineering In Kentucky, Dwight H. Bray Mar 1949

Highways And Highway Engineering In Kentucky, Dwight H. Bray

Kentucky's Annual Forum on Transportation

No abstract provided.


Welcoming Address [1949], H. L. Donovan Mar 1949

Welcoming Address [1949], H. L. Donovan

Kentucky's Annual Forum on Transportation

No abstract provided.


Acknowledgement [1949], Kentucky Transportation Center Mar 1949

Acknowledgement [1949], Kentucky Transportation Center

Kentucky's Annual Forum on Transportation

No abstract provided.


Investigation Of Field And Laboratory Methods For Evaluating Subgrade Support In The Design Of Highway Flexible Pavements, Robert F. Baker, William B. Drake Mar 1949

Investigation Of Field And Laboratory Methods For Evaluating Subgrade Support In The Design Of Highway Flexible Pavements, Robert F. Baker, William B. Drake

Kentucky Transportation Center Research Report

Four different methods of evaluating subgrade support under flexible pavements were studied: (1) Field CBR; (2) North Dakota Cone; (3) Bearing Plates; and (4) Laboratory CBR.

Approximately 435 miles of flexible pavements in Kentucky were represented. The roads were selected so as to give a wide range in conditions of traffic, soil areas, and design. A total of 185 locations were investigated, and 338 cone tests, 291 field CBR's, and 117 series of plate tests were conducted. There were 178 subgrade samples for which the laboratory CBR test was conducted. Undisturbed samples for future triaxial tests were obtained at 21 …


Memo On Neoprene Rubber Joint Sealer, L. E. Gregg Feb 1949

Memo On Neoprene Rubber Joint Sealer, L. E. Gregg

Kentucky Transportation Center Research Report

No abstract provided.


Memo On Cold Applied Mastic-Type Crack And Joint Filler, L. E. Gregg Feb 1949

Memo On Cold Applied Mastic-Type Crack And Joint Filler, L. E. Gregg

Kentucky Transportation Center Research Report

No abstract provided.


An Examination Of Equipment For Preventing Segregation In Storage Of Coarse Aggregates, S. T. Collier Feb 1949

An Examination Of Equipment For Preventing Segregation In Storage Of Coarse Aggregates, S. T. Collier

Kentucky Transportation Center Research Report

This is a report of an investigation of a device developed for the purpose of reducing to a minimum the segregation of coarse aggregates during delivery from chutes or conveyors to bins and other storage or transportation facilities.

Producers and consumers are always confronted, more or less, with segregation of materials, but methods toward its elimination have been moderately successful at best. As a matter of fact, the most successful of those methods have been those that required placement and distribution of loads in bins, stockpiles, barges, and the like, rather than the use of mechanical devices for prevention of …


Geologic Considerations In Relation To A Materials Survey, James L. Young Jr., L. E. Gregg Jan 1949

Geologic Considerations In Relation To A Materials Survey, James L. Young Jr., L. E. Gregg

Kentucky Transportation Center Research Report

In materials surveying, geology should be of maximum benefit, not as a complete informant but as a foundation for reconnaissance, assembly, and cataloging of materials. Geology in essence is a materials survey on a grand scale. Use of this science for engineering purposes involves some primary knowledge of geologic nomenclature, the basic historic approach of geologists, and the use of resources and data published by state, federal, and private agencies over a period of 75 years.

Recognition of the need for information on surface conditions as an aid to engineering and allied sciences is emphasized; and in response to this …


Recommended Special Specification For Surfacing Materials For Signs And Markers, L. E. Gregg Jan 1949

Recommended Special Specification For Surfacing Materials For Signs And Markers, L. E. Gregg

Kentucky Transportation Center Research Report

This special specification supersedes all previous specifications establishing requirements for surfacing materials for vertical signs and markers as defined below. This includes all previous special and temnorary specifications and part 7.23.SB of the Department's 1945 Standard Specifications for State and Federal Road and Bridge Construction.


A Laboratory Investigation Of Mineralogical, Chemical And Physical Properties Of Limestone Aggregates, James L. Young Jr., James H. Havens, L. E. Gregg Dec 1948

A Laboratory Investigation Of Mineralogical, Chemical And Physical Properties Of Limestone Aggregates, James L. Young Jr., James H. Havens, L. E. Gregg

Kentucky Transportation Center Research Report

The project described in this report represents one phase of comprehensive research with all types of aggregates for highway paving mixtures in Kentucky. It was designed to show the fundamental properties of limestones which determine their suitability for this type of use -- particularly their so-called durability. For this reason, emphasis was placed on analysis of the intrinsic properties of the aggregates themselves rather than analysis of procedures or test methods, such as freezing and thawing.