Geotechnical Testing Journal Table of Contents Volume 24, 2001 No. 1, March Development of a Stress/Suction-Controlled True Triaxial Testing Device for Unsaturated Soils—L. R. HOYOS, JR. AND E. J. MACARI Mechanical Behavior of an Unsaturated Soil Under Multi-Axial Stress States—E. J. MACARI AND L. R. HOYOS, JR. Interaction Between Hexagonal Wire Mesh Reinforcement and Silty Sand Backfill—p. T. BERGADO, C. TEERAWATTANASUK, T. WONGSAWANON, AND P. VOOTTIPRUEX Evaluation of Initial Specimen Condition and Its Effect on Consolidation Properties of Saturated Clay—M.-F. CHANG A Flat Dilatometer to Operate in Glacial Tills—A. AKBAR AND B. G. CLARKE Determining Hyraulic Conductivity of Soil-Bentonite Using the API Filter Press—c. M. FILZ, L. B. HENRY, G. M. HESLIN, AND R. R. DAVIDSON Design and Performance of an Electro-Pneumatic Pile Hammer for Laboratory Applications—m. G. ISKANDER, R. E. OLSON, AND J. A. BAY A Laser Technique to Quantify the Size, Porosity, and Density of Clay Clusters During Sedimentation—w. J. LIKOS AND N. LU Development of a New In-Situ Direct Shear Test—H. MATSUOKA, S. LIU, D. SUN, AND U. NISHIKATA Quick and Reliable Procedure for Liquid Limit Determination of Fine-Grained Soils—m. J. MENDOZA AND M. OROZCO Consolidation and Permeability Behavior of Segregated and Homogeneous Sediments—aA. SRIDHARAN AND K. PRAKASH Technical Note: Measuring the Effect of Mixed Grading on the Maximum Dry Density of Sands—w. E. BARTON, A. CRESSWELL, AND R. BROWN No. 2, June Horizontally Mounted Bender Elements for Measuring Anisotropic Shear Moduli in Triaxial Clay Specimens— D. S. PENNINGTON, D. F. T. NASH, AND M. L. LINGS Experimental Evaluation of Consolidation Behavior of Stiff Clay Lumps in Reclamation Fill—c. F. LEUNG, J. C. WONG, R. MANIVANANN, AND S. A. TAN Changes in Clay Swelling and Shear Strength Properties with Different Sample Preparation Techniques—m. F. ATTOM, M. M. ABU-ZRIEG, AND M. T. OBAIDAT Transmissivity of a Nonwoven Polyproylene Geotextile Under Suction—J. C. STORMONT, C. RAY, AND T. M. EVANS Calibration of Five-Segment Time Domain Reflectometry Probes for Water Content Measurement in High Density Materials—w. C. WRIGHT, R. E. YODER, N. R. RAINWATER, AND E. C. DRUMM Determination of Critical State Parameters in Sandy Soils—Simple Procedure—J. C. SANTAMARINA AND G. C. CHO An Internal Instrumentation for Axial and Radial Strain Measurements in Triaxial Tests—P. BESUELLE AND J. DESRUES Laboratory Characterization of Stress-Strain Behavior of Soils by Stress and/or Strain Path Loading—y. P. vAID, A. ELIADORANI, S. SIVATHAYALAN, AND M. UTHAYAKUMAR Extracting Piezometric Level and Hydraulic Conductivity from Tests in Driven Flush-Joint Casings—R. P. CHAPUIS Technical Note: Empirical Function Representing the Shear Strength of Unsaturated Soils—L. MIAO, Z. YIN AND S. LIU 439 440 TABLE OF CONTENTS No. 3, September A Laboratory Apparatus to Measure Chemico-Osmotic Efficiency Coefficients for Clay Soils—MICHAEL A. MALUSIS, CHARLES D. SHACKELFORD, AND HAROLD W. OLSEN On the Use of Multi-directional Piezoelectric Transducers in Triaxial Testing—VINCENZO FIORAVANTE AND ROBERTO CAPOFERRI Influence of the Loading Apparatus on the Stresses within Biaxial Specimens—ANTONIO BOBET Evaluation of Geomembranes Using an Ultrasonic Method—NAZLI YESILLER AND SEVIL SUNGUR LVDT Based System for the Measurement of the Prefailure Behavior of Geomaterials—GREGORY DA RE, MARIA CATERINA SANTAGATA, AND JOHN T. GERMAINE Properties and Behavior of Raw Sludge Mixed with Pulverized Fuel Ash and Lime—JIAN HUA YIN A Potential Model for Compaction Evaluation of Piedmont Soils Using Dynamic Cone Penetrometer (DCP)—s. A. GABR, J. COONSE, AND P. C. LAMBE Effects of Installation Method on Sand Compaction Piles in Clay in the Centrifuge—FOOK-HOU LEE, YANG-WAH NG, AND KWET-YEW YONG Technical Notes: An Optical Technique for Investigating Soil Displacement Patterns—DAVID R. GILL AND BARRY M. LEHANE Limiting Compression Curves—A. SRIDHARAN AND K. PRAKASH Discussion: Discussion on “Direct Shear Interface Test for Shaft Capacity of Piles in Sand” by E. Saibaba Reddy, D. N. Chapman, and V. V. R. N. Sastry—k. S. SUBBA RAO, MEHTER M. ALLAM, AND RETNAMONY G. ROBINSON Closure: E. SAIBABA REDDY, D. N. CHAPMAN, AND V. V. R. N. SASTRY No. 4, December A New Technique for Simulation of Tunnel Excavation in a Centrifuge—J. Ss. SHARMA, M. D. BOLTON, AND R. E. BOYLE Simultaneous Measurement of Surface Wave Dispersion and Attenuation Curves—GLENN J. RIX, CARLO G. LAI, AND SEBASTIANO FOTI Determination of Thickness of Smooth Geomembranes—NAZLI YESILLER AND ARIF CEKIC Modified Triaxial Apparatus for Shearing-Infiltration Test—JOO-CHAI WONG, HARIANTO RAHARDIJO, DAVID G. TOLL, AND ENG-CHOON LEONG Shear Displacement Dependent Strength of Municipal Solid Waste and Its Major Constituent—SHAUN A. PELKEY, ARUN J. VALSANGKAR, AND ARVID LANDVA Explosive Induced Pore Pressure in a Sandfill Dam—WaAYNE A. CHARLIE, WAYNE A. LEWIS, AND DONALD O. DOEHRING Retaining Wall Model Test with Waste Foundry Sand Mixture Backfill—kWANHO LEE, JAEYOON CHO, R. SALGADO, AND INMO LEE Investigation of Resonant Frequency and Amplitude of Vibrating Footing Resting on a Layered Soil System—D. K. BAIDYA AND G. MURALI KRISHNA Technical Notes: Determination of Specific Gravity and Void Ratio of Pumice Materials—LAURENCE D. WESLEY Influence of Peripheral Velocity on Vane Shear Strength of an Artificial Clay—GIOVANNA BISCONTIN AND JUAN M. PESTANA Effect of Compaction Duration on the Induced Stress Levels in a Laboratory Prepared Sand Bed—ADEL M. HANNA AND NADER SOLIMAN-SAAD Table of Contents to Volume 24 Author Index to Volume 24 Subject Index to Volume 24