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Engineering

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Articles 2431 - 2460 of 2858

Full-Text Articles in Engineering

Irish H & V News Dec 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Nov 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Oct 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Nondestructive Evaluation Of Rigid Pavements Using Road Rater Deflections [1984], Gary W. Sharpe, Mark Anderson, Robert C. Deen, Herbert F. Southgate Sep 1984

Nondestructive Evaluation Of Rigid Pavements Using Road Rater Deflections [1984], Gary W. Sharpe, Mark Anderson, Robert C. Deen, Herbert F. Southgate

Kentucky Transportation Center Research Report

Road Rater deflections have been used to determine in-place structural conditions of rigid and composite pavements, based on modifications of principles and experience with the structural evaluation of flexible pavements. Details of the use of elastic layer theory to simulate deflection measurements associated with loadings for the Kentucky Road Rater are presented. Included is an illustration of the use of field deflection measurements to "back calculate'" in-place moduli. The procedures are generally iterative and involve matching measured deflections with theoretical deflections. Elastic layer principles have been used to simulate deflections only at the midslab position. Relationships regarding deflections at other …


Irish H & V News Sep 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Pavement Thickness Designs Utilizing Low-Strength (Pozzolanic) Base And Subbase Materials, Gary W. Sharpe, Robert C. Deen, Herbert F. Southgate, Mark Anderson Aug 1984

Pavement Thickness Designs Utilizing Low-Strength (Pozzolanic) Base And Subbase Materials, Gary W. Sharpe, Robert C. Deen, Herbert F. Southgate, Mark Anderson

Kentucky Transportation Center Research Report

This paper presents information whereby laboratory test data for pozzolanic base and subbase materials may be combined with elastic layer theory and a limiting strain criterion to determine thickness designs equivalent to conventional asphaltic concrete and crushed stone pavement structures. A summary of laboratory testing in Kentucky also is presented. An example thickness design determination is presented and includes an economic comparison of alternative designs with the conventional asphaltic – crushed stone thickness design.


Irish H & V News Jul 1984

Irish H & V News

Building Services Engineering

No abstract provided.


An Evaluation Of Pavement Drainage Interstate 64, Rowan-Carter Counties, David L. Allen, Herbert F. Southgate Jun 1984

An Evaluation Of Pavement Drainage Interstate 64, Rowan-Carter Counties, David L. Allen, Herbert F. Southgate

Kentucky Transportation Center Research Report

No abstract provided.


Irish H & V News Jun 1984

Irish H & V News

Building Services Engineering

No abstract provided.


An Evaluation Of Elastizell Concrete As A Lightweight Fill Material, David L. Allen, Bobby W. Meade Apr 1984

An Evaluation Of Elastizell Concrete As A Lightweight Fill Material, David L. Allen, Bobby W. Meade

Kentucky Transportation Center Research Report

Near Northern Kentucky University in Campbell County, Kentucky, access ramps connecting I 275 and 3-Mile Road (shown in Figure 1) were constructed. During construction of those ramps, additional embankments were to be placed on an existing 6-foot by 5-foot box culvert. Both ramps, hereafter referred to as NKU-1 (the exit ramp from I 275) and NKU-2 (the entrance ramp to I 275), cross the culvert. The new embankments would result in fill heights, over the culvert of 30 feet at Station 39+14 of NKU-1 (Figure 2) and 47 feet at Station 11+68 of NKU-2 (Figure 3). The original fill height …


Irish H & V News Apr 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Thickness Design Procedure For Portland Cement Concrete Pavements, Herbert F. Southgate, Robert C. Deen Mar 1984

Thickness Design Procedure For Portland Cement Concrete Pavements, Herbert F. Southgate, Robert C. Deen

Kentucky Transportation Center Research Report

Past experience in Kentucky indicated that thickness designs using portland cement concrete best agreed with criterion used in the Portland Cement Association's design method for 2 or 3 million EAL's or less. For EAL's greater than 3 million, past experience best agreed with criterion developed from the AASHO Road Test.

Research reported herein indicates the two criteria become asymptotic at approximately 2.5 million EAL's. The merger of the criteria is presented, and the combined criterion is coupled with the principal of equal work as defined in classical physics to produce thickness design curves for portland cement concrete pavements. Research has …


Irish H & V News Mar 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Feb 1984

Irish H & V News

Building Services Engineering

No abstract provided.


A Field And Laboratory Compaction Study Of A Mixture Of Retorted And Raw Oil Shale From The Means Project In Montgomery County, David L. Allen, Bobby W. Meade Jan 1984

A Field And Laboratory Compaction Study Of A Mixture Of Retorted And Raw Oil Shale From The Means Project In Montgomery County, David L. Allen, Bobby W. Meade

Kentucky Transportation Center Research Report

The oil shale retorting process will produce large volumes of spent shale and some raw oil shale that cannot he used in the retorting process. Consequently, it is anticipated that on-site disposal embankments will be constructed using these materials A report by Drnevich, et al. (1) has recommended that site-specific compaction studies be done at the start up of a mining and disposal operation. Holtz 12) has reported on a detailed study of the compaction characteristics of a western oil shale that had been retorted by the Paraho vertical retort process.

This study was performed to develop background data on …


Rutting, A Case Study (Us 23, 1.5 Miles North Of Louisa), James H. Havens, Gary W. Sharpe, David L. Allen, Herbert F. Southgate Jan 1984

Rutting, A Case Study (Us 23, 1.5 Miles North Of Louisa), James H. Havens, Gary W. Sharpe, David L. Allen, Herbert F. Southgate

Kentucky Transportation Center Research Report

This case study of rutting in an asphaltic concrete pavement makes recourse to trenching full width and full depth to expose and observe the entire cross section of the structure. Rutting occurred in the vicinity of Station 59+00 on US 23, 1.5 miles north of Louisa, during August and September 1983 when traffic was diverted onto newly constructed northbound lanes (without final surface and shouldering) while excavation into the hillside was completed for the southbound lanes. Earth movers crossed the northbound lanes going to and from a waste area. Coal trucks (Figures 1 and 2) slowed, stopped, and crept where …


Irish H & V News Jan 1984

Irish H & V News

Building Services Engineering

No abstract provided.


H & V News Dec 1983

H & V News

Building Services Engineering

No abstract provided.


H & V News Nov 1983

H & V News

Building Services Engineering

No abstract provided.


H & V News Oct 1983

H & V News

Building Services Engineering

No abstract provided.


H & V News Sep 1983

H & V News

Building Services Engineering

No abstract provided.


H & V News Aug 1983

H & V News

Building Services Engineering

No abstract provided.


H & V News Jul 1983

H & V News

Building Services Engineering

No abstract provided.


H & V News Jun 1983

H & V News

Building Services Engineering

No abstract provided.


H & V News May 1983

H & V News

Building Services Engineering

No abstract provided.


H & V News Apr 1983

H & V News

Building Services Engineering

No abstract provided.


H & V News Mar 1983

H & V News

Building Services Engineering

No abstract provided.


Engineering Properties Of Overburden Materials For The Means Project, Vincent P. Drnevich, David L. Allen, Tommy C. Hopkins Dec 1982

Engineering Properties Of Overburden Materials For The Means Project, Vincent P. Drnevich, David L. Allen, Tommy C. Hopkins

Kentucky Transportation Center Research Report

A geotechnical investigation was performed to determine the physical properties (classification) and engineering properties of the overburden material from a proposed oil shale mining site in Montgomery County (Means Project). Three overburden materials were received in sealed meal drums and were labeled Nancy Member, Borden Formation; Clay City Bed, Farmers Member, Borden Formation; and Henley bed, Farmers Member, Borden Formation. Hereafter, they will be referred to as the Nancy, Clay City and Henley, respectively. the various types of geotechnical laboratory tests performed on these materials are listed in Table 1.


H & V News Dec 1982

H & V News

Building Services Engineering

No abstract provided.


Review Of Pertinent Contract Documents Tennessee-Tombigbee Waterway Divide Cut Section 3a, Ronald D. Hughes, Robert C. Deen, David L. Allen, Tommy C. Hopkins Nov 1982

Review Of Pertinent Contract Documents Tennessee-Tombigbee Waterway Divide Cut Section 3a, Ronald D. Hughes, Robert C. Deen, David L. Allen, Tommy C. Hopkins

Kentucky Transportation Center Research Report

During construction of a portion of the Tombigbee Canal near Corinth, Mississippi, southward from Pickwick Lake (Station 13,118+00 to 13,337+50), the Contractor reported various problems, which he termed "differing site conditions." Some of the items considered as problems by the Contractor were: the amount of cherty Paleozoic material was far less than he expected or anticipated, there were deep deposits of bluish muck, the alluvial was not sufficiently stable to place in 1-foot lifts, excessively wet materials made it necessary to shift equipment frequently, the equipment had to travel over bad roads, and the materials had no bearing strength.