Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
This report describes the development of three specialized instruments for the underwater nondestructive testing of concrete waterfront structures. One instrument is a magnetic rebar locator that locates rebar in concrete structures and measures the amount of concrete cover over the rebar. Another instrument is a rebound hammer that measures the surface hardness of the concrete. The third instrument is an ultrasonic test system that provides a general condition rating of the concrete based on sound velocity measurements. Each instrument consists of an underwater sensor connected to a topside deck unit via a buoyant umbilical cable. The battery-powered deck unit contains the signal conditioning electronics and data acquisition system. To operate each instrument, a diver must position the underwater sensor while a person topside operates the deck unit to collect and store data. Each independent instrument provides unique information to help assess the condition of the concrete structure.
This report describes the development of three specialized instruments for the underwater nondestructive testing of concrete waterfront structures. One instrument is a magnetic rebar locator that locates rebar in concrete structures and measures the amount of concrete cover over the rebar. Another instrument is a rebound hammer that measures the surface hardness of the concrete. The third instrument is an ultrasonic test system that provides a general condition rating of the concrete based on sound velocity measurements. Each instrument consists of an underwater sensor connected to a topside deck unit via a buoyant umbilical cable. The battery-powered deck unit contains the signal conditioning electronics and data acquisition system. To operate each instrument, a diver must position the underwater sensor while a person topside operates the deck unit to collect and store data. Each independent instrument provides unique information to help assess the condition of the concrete structure.
Underwater Concrete Inspection Equipment
1991
86 pages
Report
Keine Angabe
Englisch
Laboratory & Test Facility Design & Operation , Environmental & Occupational Factors , Structural Analyses , Underwater Construction & Habitats , Construction Equipment, Materials, & Supplies , Nondestructive Testing , Concrete , Underwater equipment , Acoustic velocity , Data acquisition , Detectors , Divers , Electric batteries , Electronics , Hardness , Inspection , Instrumentation , Measurement , Nondestructive testing , Ratings , Signal processing , Structures , Surfaces , Ultrasonic tests , Waterfront structures , Concrete structures , Reinforced concrete , Test equipment , Reinforcement bars , Sound velocity profile , Rebound hammers
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