Ground-penetrating radar GPR is a geophysical method that uses radar pulses to image the subsurface. GPR can have applications in a variety of media, including rock, soil, ice, fresh water, pavements and structures. In the right conditions, practitioners can use GPR to detect subsurface objects, changes in material properties, and voids and cracks.
Study of the anti-penetration performance of concrete with different coarse aggregate content. E-mail: qqqwucheng Deep penetration experiments were performed on five types of concrete with different coarse aggregate content.
At Strategic Demolition, we carry out concrete cutting and concrete penetration in Werribee and a variety of other areas for both domestic and commercial clients. From road sawing and core drilling to diamond grinding, wall sawing, rock sawing, ring sawing and concrete removal, turn to us for a professional result. Our clients enlist our help because they know that our team will find a solution, even when access is difficult.
Chloride Penetration - Mechanism. The penetration of chloride ions into reinforced concrete structures is the major contributing factor for inducing corrosion of the steel reinforcement. At this pH level, the rate of the corrosion reaction will be negligible.
A bunker buster is a type of munition that is designed to penetrate hardened targets or targets buried deep underground, such as military bunkers. In World War II the Luftwaffe developed a series of unguided rocket-propelled armor-piercing bombs for use against shipping and fortifications. In World War IIthe British designer Barnes Wallisalready famous for inventing the bouncing bombdesigned two bombs that would become the conceptual predecessors of modern bunker busters: the five tonne Tallboy and the ten tonne Grand Slam.
Show full item record. Skip to main content. Sami Rizkalla, Committee Member Dr.
Log In. Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
What are rebound, penetration resistance, pullout, and break-off tests? A rebound test consists of striking a steel rod in contact with the concrete surface with a spring-propelled mass or hammer ACI The instrument measures the amount of rebound of the hammer. In the penetration-resistance techniqueone measures the depth of penetration of a rod probe or a pin forced into the hardened concrete by a driver unit ACI
Skip to Main Content. A not-for-profit organization, IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity. Use of this web site signifies your agreement to the terms and conditions.