The discovery of concrete cracks from an alkali-silica reaction, or ASR, in five safety-related structures at New Hampshire's Seabrook nuclear powerplant has prompted plant owner NextEra Energy Resources to launch several ASR studies as part of a comprehensive corrective action plan.
One year after the devastating March 11 tsunami and earthquake caused a nuclear crisis at the Fukushima Daiichi nuclear power station in Japan, regulators in the U.S. are working to ensure the country's fleet of nuclear reactors are safe and strong enough to withstand a natural or man-made disaster of similar force.