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RISNondestructive and Laboratory Evaluation of Damage Gradients in Concrete Structure Exposed to Cryogenic Temperatures
Publisher: American Society of Civil Engineers
Abstract: This paper discusses the use of pulse velocity, dynamic Young’s modulus of elasticity, and air permeability of concrete to evaluate the extent of damage and damage gradients to a concrete structure exposed to thermal shock ...
Ultrasonic Pulse Velocity in Nondestructive Evaluation of Low Quality and Damaged Concrete and Masonry Construction
Publisher: American Society of Civil Engineers
Abstract: This paper discusses applications of ASTM C 597 “Standard Test Method for Pulse Velocity Through Concrete” technique to field detection of damage to concrete in service and field quality assessment of cast-in-place concrete ...
Evaluation of Fire Damage to a Precast Concrete Structure Nondestructive, Laboratory, and Load Testing
Publisher: American Society of Civil Engineers
Abstract: This article discusses the use of nondestructive and laboratory testing techniques and load testing in evaluation of fire damage to precast prestressed concrete members in a parking structure. The in situ evaluation phase ...
Assessment of Fire Damage to a Reinforced Concrete Structure during Construction
Publisher: American Society of Civil Engineers
Abstract: This article summarizes an engineering evaluation of the extent of fire damage to a concrete structure under construction. The fire occurred in a portion of the reinforced concrete structure and visibly damaged a load ...
Elastic Dynamic Young’s Modulus and Permeability of Concrete in Fire Damaged Structural Members
Publisher: American Society of Civil Engineers
Abstract: This article reviews the results of two studies examining the effects of exposure to elevated temperatures on the dynamic elastic (Young’s) modulus
Evaluation and Load Testing of Posttensioned Concrete Structure Exhibiting Distress
Publisher: American Society of Civil Engineers
Abstract: This article discusses the evaluation of a posttensioned concrete structure exhibiting cracking using nondestructive evaluation, laboratory testing of concrete samples, and subsequent in situ load testing. During a field ...
Nondestructive Radiographic Evaluation and Repairs to a Prestressed Concrete Parking Structure Following Partial Collapse
Publisher: American Society of Civil Engineers
Abstract: This paper presents use of radiographic imaging (X-ray) in evaluation of existing reinforcing steel and tendon configuration of a structure following a collapse and development of steel retrofit and carbon-fiber-reinforced ...
Comparison of Pulse Velocity and Impact-Echo Findings to Properties of Thin Disks from a Fire Damaged Slab
Publisher: American Society of Civil Engineers
Abstract: The engineering assessment of fire damage to a concrete slab provided the opportunity to compare the results of in situ, nondestructive evaluation (NDE) techniques and laboratory testing of specimens taken from cores ...
Load Testing of Historic Cast Iron Stairs at Cape Hatteras Lighthouse
Publisher: American Society of Civil Engineers
Abstract: The Cape Hatteras Lighthouse is the tallest brick structure of its kind in the United States. The national icon was closed to visitors after several pieces of the cast iron stairs, original to the structure, dislodged and ...