This volume includes a collection of technical papers covering two important research topics in geotechnical engineering: (1) the behavior and treatment of expansive soils, and (2) the characterization of rock properties. The twelve studies on expansive soils include investigations into novel stabilization techniques for expansive soils using different admixtures or mechanical consolidation techniques, as well as new experimental approaches to evaluate the behavior of expansive soils. They also include an evaluation of wetting boundary conditions on the volume change of expansive soils, as well as the role of hydrologic boundary conditions in arid climates. The four studies on rock properties include thermo-hydro-mechanical behavior of gypsum rock, role of rock strength in blastability, indirect methods to estimate rock strength, and variations in isotope distributions in Permian rocks. The two broad themes in this collection, as summarized above, are representative of local challenges facing geotechnical engineers in the Middle East, but their contributions can also be extended to other regions of the world. This volume is part of the proceedings of the 1st GeoMEast International Congress and Exhibition on Sustainable Civil Infrastructures, Egypt 2017.

Presents recent advances in admixture effects on the behavior of expansive soils Discusses the use of image analysis to evaluate expansive soil volume change Includes studies on thermo-hydro-mechanical behavior of rocks Includes supplementary material: sn.pub/extras

Autorentext
LAUREANO R. HOYOS, Ph.D., P.E., M.ASCE Lead Campus Manager, Dwight D. Eisenhower Transportation Fellowship Program, FHWA Professor, Department of Civil Engineering, The University of Texas at Arlington. PROFESSIONAL PREPARATION: Post-Doctoral Research Fellow, Louisiana State University, 1999 Post-Doctoral Research Fellow, Georgia Institute of Technology, 1999 Ph.D. Civil and Environmental Engineering, Georgia Institute of Technology, 1998 M.Sc. Civil and Environmental Engineering, Georgia Institute of Technology, 1996 M.Sc. Geotechnical Engineering, University of Puerto Rico-RUM, Mayaguez, PR, 1993 M.Sc. Highway Engineering, Universidad del Cauca, Popayán, Colombia, 1991 B.Sc. Civil Engineering, Universidad de la Costa, Barranquilla, Colombia, 1988 APPOINTMENTS: • Professor, Department of Civil Engineering, UTA, Texas, 2014 Current • Associate Professor, Department of Civil Engineering, UTA, Texas, 2005 2014 • Assistant Professor, Department of Civil Engineering, UTA, Texas, 2000 2005 HONORS: • Lockheed Martin Aeronautics Excellence in Teaching Award, College of Engineering, University of Texas at Arlington, 2014 • Research Excellence Award, Office of the Provost, University of Texas at Arlington, 2006, 2007, 2008, and 2009 • Outstanding Civil Engineering Instructor Award, Department of Civil Engineering, University of Texas at Arlington, 2005 • Outstanding Early Career Faculty Award, College of Engineering, University of Texas at Arlington, 2003 JOHN S. MCCARTNEY, Ph.D., P.E. PROFESSIONAL PREPARATION University of Colorado Boulder, Boulder, CO, Civil Engineering, B.S. (high distinction), 2002 University of Colorado Boulder, Boulder, CO, Civil Engineering, M.S., 2002 University of Texas at Austin, Austin, TX, Civil Engineering, Ph.D., 2007 APPOINTMENTS 11/14 Present, Associate Professor, University of California San Diego (UCSD) 07/13 08/14, Lyall Faculty Fellow, University of Colorado Boulder (CU) 05/13 10/14, Associate Professor, University of Colorado Boulder (CU) 08/08 05/13, Assistant Professor, University of Colorado Boulder (CU) 08/08 07/12, Barry Faculty Fellow, University of Colorado Boulder (CU) 08/07 08/08, Assistant Professor, University of Arkansas at Fayetteville (UA) SYNERGISTIC ACTIVITIES • Selected Honors and Awards: • Service to Geo-Institute of the American Society of Civil Engineers (ASCE): • Service to International Geosynthetics Society (IGS): • Service to ASTM International: • Editorial Positions on International Journals:

Inhalt
1 Influence of chemical additives and flyash on the swelling and bearing resistance of expansive subgrade.- 2 characterization of unsaturated shrink-swell soils properties in Egypt.- 3 strength property of expansive soils treated with bagasse ash and lime.- 4 stabilization of an expansive soil using alkali activated fly ash based geopolymer.- 5 determination of shrinkage properties of clayey soils by the image analysis technique. <p