Lessons Learned in Laboratory and Field Evaluation of Accelerated Strength Tests for Quality Control of Concrete Pavements
This paper describes the results of an accelerated strength testing program performed to evaluate flexural strength potential at 28- and 90-days. Based upon a literature review of previous...
Compressive Deterioration of Cracked Concrete
When shear behavior of reinforced concrete (R/C) members is to be simulated, the compressive strength and the stiffness reduction of cracked concrete must be taken into consideration....
Ultimate Strength and Deformation of RC Panels
In this study, twenty reinforced concrete panels have been tested under pure shear. Test results showed that the compressive strength of concrete strut was strongly affected by bond characteristics...
Parametric Analyses of RC Shear Walls by FEM
In this paper, nonlinear behavior of reinforced concrete shear walls is studied by using the finite element analysis. We applied numerical analyses to a wide range of parameters, such...
Flexural Strength of Ultra-High Strength Concrete Members
Various proposals have been made for the pridiction of strength of high strength concrete sections. One of the most important parts of any strength computation procedure is the assumption...
In-Plane Behavior of Concrete Masonry Coupled Walls
To study the in-plane seismic resistance of multi-story masonry coupled walls, 6 full-scale reinforced masonry specimens, each two stories high, are being constructed and tested in the...
Amelioration of Stirrup and Compression Reinforcement on the Ductility of Reinforced High-Strength Concrete Beam
18 rectangular high strength concrete beams were tested to investigate their ductile behavior. The results show that it will be more advantageous, for ductility, to choose the compressive...
Some Dilatometer Test Results in Pennsylvania and New York
This paper starts with a brief introduction to the dilatometer and piezoblade. Test results in four different areas are presented. DMT soundings at LR 67057 (Legislative Route numbers...
Cyclic Behavior of Natural Overconsolidated Clay in Two Loading Modes
One-way, stress-controlled, cyclic triaxial compression tests were conducted on a heavily overconsolidated (Ko > 1), slickensided, natural clay with a view to modeling its cyclic...
First-Order Estimation of Ko in Sands and Clays
The in-situ horizontal stress coefficient (Ko) is known to be the dominant design parameter controlling the side resistance of deep foundations....
Improving Properties of Active Clay by Sand Admixtures
Characteristics of an active clay under various contents of sand are presented. The sand is an admixture used for improving properties of the active clay deposited at a marginal site....
Modelling of Displacement Piles in Sand Using a Pressure Chamber
This paper describes a method of modelling the driving and loading of piles in the laboratory that permits variations of significant parameters and maintains effective stresses at levels...
Settlement of Single Piles
This paper presents an application of a recently developed approach for computing the tip settlement of axially loaded single piles driven into compressible layered soil system. In this...
New Design Method for Drilled Shafts from Common Soil and Rock Tests
A method is presented by which the compressive capacity and load-settlement characteristics of large drilled shafts can be computed from commonly executed soil and rock tests. The method...
Interpretation of Load Tests on Drilled Shafts?Part 1: Axial Compression
Existing interpretation methods for axial compression load tests are reviewed critically, and a qualitative and quantitative comparison is made for selected methods. A simplified method,...
Pile-Drilled Caisson Combination for Foundation of High Rise Building
The analysis and evaluation of several alternatives for foundations of a high rise office building is presented, which resulted in the selection of a combination of high capacity piles...
Electricity From Air
After a decade of research and dozens of feasibility studies at sites around the country, the first Compressed Air Energy Storage (CAES) plant in the U.S. is under construction at McIntosh,...
Specifications for Masonry Structures
Pumped Storage and Compressed Air Storage, A Comparison
Pumped storage hydroelectric power plants and compressed air energy storage (CAES) plants are used for peaking and intermediate duty on electrical utility load systems. In comparing pumped...
Strengthening and Raising Gibraltar Dam with RCC
The initial phase of a multiphase investigation program was completed by USBR (U. S. Department of the Interior, Bureau of Reclamation) personnel to develop geotechnical laboratory testing...
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