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Sensitivity of Two Stress Wave-Based Methods for Nondestructive Evaluation of Concrete Slabs
Publisher: American Society of Civil Engineers
Impact of Temperature Gradient on Modulus of Asphaltic Concrete Layers
Publisher: American Society of Civil Engineers
Abstract: Temperature is one of the most dominant factors that impact the variation in modulus of asphalt concrete (AC) layers. An accurate relationship between temperature and modulus is necessary to successfully characterize asphalt ...
Closure to “<i>Automated Surface Wave Method: Inversion Technique</i>” by Deren Yuan and Soheil Nazarian (July, 1993, Vol. 119, No. 7)
Publisher: American Society of Civil Engineers
Automated Surface Wave Method: Inversion Technique
Publisher: American Society of Civil Engineers
Abstract: The spectral‐analysis‐of‐surface‐waves (SASW) method is a nondestructive testing method based upon generation and detection of elastic stress waves. The key steps involved are construction of an experimental dispersion ...
Study of Parameters Affecting Impulse Response Method
Publisher: American Society of Civil Engineers
Abstract: Even though the impulse response method is widely used in detecting defects under rigid pavements, the sensitivity of the method is not well understood. Modal time-history analyses were used to numerically simulate the ...
Practical Specimen Preparation and Testing Protocol for Evaluation of Friction Performance of Asphalt Pavement Aggregates with Three-Wheel Polishing Device
Publisher: ASCE
Abstract: AASHTO has provisionally endorsed the use of a three-wheel polishing device (TWPD) for polishing and the dynamic friction tester (DFT) for measuring the friction of the coarse aggregates used in hot mix asphalt (HMA). ...
Automated Surface Wave Method: Field Testing
Publisher: American Society of Civil Engineers
Abstract: The spectral analysis of surface waves (SASW) method is a nondestructive in situ seismic testing method for determining shear wave velocity profiles of soil sites and stiffness profiles of pavement systems. The key steps ...
Validation of Strengths and Limitations of Seismic Methods in Quality Management and Assessment of Shotcrete Liners
Publisher: American Society of Civil Engineers
Abstract: Shotcrete liners are being utilized more frequently in transportation infrastructure as retaining structures and tunnel covers. Despite their economic advantages to concrete, the initial quality of construction and long-term ...
Impact of Specimen Geometry on Dynamic Modulus Measurement Test Setup
Publisher: American Society of Civil Engineers
Abstract: A new mechanistic-empirical pavement design guide to better predict the service life of pavement systems is in its final stages of validation. One of the new input parameters recommended for the design is the dynamic modulus ...
Discrete Element Analysis of the Influences of Aggregate Properties and Internal Structure on Fracture in Asphalt Mixtures
Publisher: American Society of Civil Engineers
Abstract: Increased loads on hot-mix asphalt (HMA) pavements have necessitated the development of new-generation asphalt mixture designs that rely on stone-on-stone contact among coarse aggregates in resisting and distributing applied ...