Browsing Research Highlighters and Reports - ODOT Office of Research & Implementation by Author "Laguros, Joakim G."
Now showing items 1-15 of 15
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Assessment of resilient modulus testing methods and their application to design of pavements (FHWA-OK-91-08)
Danayak, Rajesh; Zaman, Musharraf; Laguros, Joakim G. (1991-6)Resilient modulus (RM) is an important property of subgrade soils that accounts for repetitive loads due to vehicular traffic. Since AASHTO recommended its use in pavement design in 1986, various transportation agencies ... -
Construction and performance of the stabilized base course on U.S. 77 Ponca City, Kay County (FHWA-OK-87-7) 2128
Laguros, Joakim G.; Keshawarz, Saleh M. (1987-7)This study investigates the field implementation of shale stabilization on an experimental project. A number of test sections were set on the south bound lane of U.S. Highway 77, north of Ponca City, Kay County, Oklahoma. ... -
Evaluation of causes of excessive settlements of pavements behind bridge abutments and their remedies - phase I progress report no. 1 (84-12-2)
Laguros, Joakim G.; Zaman, M.M.; Mahmood, I.U. (1986-1)Bridge approach settlement problem is quite extensive in the U.S.A. This problem has been investigated since early 1960s, but no satisfactory solution has been achieved. A comprehensive literature search has been carried ... -
Expert systems applications for ODOT (FHWA-OK-91-09)
Laguros, Joakim G.; Bozai, Ghazanfar; Zaman, Musharraf; Mangaokar, ANup; Harp, Jimmy F.; Gattis, J.L. (1991-7)Expert systems are "intelligent" computer programs which have the capabilities of reasoning, learning, and simulating human sensory capabilities. Solutions to many problems in transportation engineering which are not well ... -
FEABAS A user friendly software for prediction of bridge approach settlement (FHWA-OK-95-03) 2188
Zaman, Musharraf; Laguros, Joakim G.; Chen, Hua; Rahman, Motiar (1995-5)Bridge approach settlement is a major problem in highway design as well as maintenance. It creates an unsafe and uncomfortable riding surface. This report presents the details of a software that was developed at the ... -
Feasibility of using fly ash as binder in coarse and fine aggregates for bases (FHWA-OK-86-8) 2125
Laguros, Joakim G.; Zenieris, Petros (1987-6)Aggregate-fly ash mixes consisting of fine aggregate bases (FAB), coarse aggregate bases (CAB) and Class C fly ash additions of 15, 25 .and 35% were tested in compressive and flexural strength for curing periods of up ... -
Fly ash concrete final report - a study of the reaction products using x-ray diffraction and SEM (82-01-2)
Laguros, Joakim G.; Baker, Mark. (1984-8)The setting and strength gaining process of P.C. concrete containing Class c high calcium fly ash were related to the reaction products which were identified using X-ray diffraction and scanning electron microscopy ( ... -
Maintenance strategies for corroded structural steel
Vavarapis, Kyriakos E.; Laguros, Joakim G. (February, )Maintenance strategies for steel highway structures Is an old topic revisited by the Involved agencies due to recent changes and Increasing awareness in the condition of the environment and the regulations relating to it. ... -
Predictability of physical changes of clay-forming materials in Oklahoma
Laguros, Joakim G. (1972-8)In cooperation with the Oklahoma Department of Highways and the Federal Highway Administration, Department of Transportation, a research project was undertaken on October 8, 1968 by the Oklahoma University Research Institute, ... -
Resilient moduli of raw and stabilized aggregate bases and evaluation of layer coefficients for AASHTO flexible pavement design volume I (FHWA-OK-98-05) 2199
Zaman, Musharraf; Laguros, Joakim G.; Tian, Ping; Zhu, Juanhua; Pandey, Kundan K. (1998-8)A comprehensive study involving laboratory testing of resilient moduli (MR) of aggregate materials, determination of layer coefficients, and their application in AASHTO flexible pavement design was conducted. Three coarse ... -
Resilient modulus of select aggregate bases and their correlations with other engineering properties (FHWA-OK-93-06) 2189
Laguros, Joakim G.; Zaman, Musharraf; Chen, Dar-Hao (1993-9)Six most commonly encountered aggregate materials which are used ´ subbaseslbales in Oklahoma are se1ected and tested under dynamic loading by using AASHTO designation T292‡91 I. A ‡ vibratory compaction method was ... -
Stabilization of Oklahoma shales - final report
Laguros, Joakim G.; Kulanand, Jha (1977-12)In cooporation with the Oklahoma Department of Transportation and the Federal Highway Administration, U.S. Department of Transportation, a research project was undertaken on June 1, 1973, by the University of Oklahoma to ... -
Stabilization of Oklahoma shales field implementation phases
Laguros, Joakim G.; Medhani, Rezene G. (1984-9)The improvement of U.S. 77 north of Ponca City, Oklahoma, into a four-lane divided highway involves the use of expansive clay as a subgrade material. To stabilize it, Portland cement, fly ash, lime and their conjunctive ... -
Statistical quality control of Portland cement concrete pavements
Laguros, Joakim G. (1968-6)The scope of this investigation was to study statistically the process of preparing concrete for Portland cement concrete pavements and to compare the data with the specifications in use. It encompassed the measurement of ... -
Strength characteristics of the stabilized boggy shale (79-09-2)
Lazaris, George A.; Laguros, Joakim G. (1979-11)In cooperation with the Oklahoma Department of Transportation and the Federal Highway Administration, U.S. Department of Transportation, a research project entitled "Field Application of the Stabilization of Oklahoma ...