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It was built to test the concept of a heavy water moderated and cooled reactor for civilian power. It was tested from late 1962 to December 1964. [1] It was not restarted. The fuel was removed and the facility was secured by 1971. All auxiliary buildings were removed. The reactor building awaits its final disposition. [2] [3]
The TR-2 nuclear reactor, also known as the Westinghouse Test Reactor or Westinghouse Testing Reactor (WTR) was a small research and test reactor designed and manufactured by Westinghouse Electric Corporation at their Waltz Mill site near Madison, Pennsylvania, approximately 30 miles southeast of Pittsburgh. TR-2 was the first privately owned ...
The test assembly is a self-contained vehicle, that can contain fuel or materials for a variety of reactor types. [14] These test assemblies, also referred to as test vehicles or test loops, can simulate the conditions of a light water reactor, heavy water reactor, liquid metal fast breeder reactor, or a gas cooled reactor. [15]
We have an 8-step guide to repair your concrete steps like a pro and skip the handyman. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...
When atmospheric carbon dioxide (CO 2), or carbonate ions (HCO − 3, CO 2− 3 dissolved in water) diffuse into concrete from its external surface, they react with calcium hydroxide (portlandite, Ca(OH) 2) and the pH of the concrete pore water progressively decreases from 13.5 – 12.5 to 8.5 (pH of water in equilibrium with calcite).
Yet other newer designs call for both a steel and concrete containment – which is in decades long use in the current German PWR-designs – notably the AP1000 and the European Pressurized Reactor plan to use both; which gives missile protection by the outer concrete and pressurizing ability by the inner steel structure.
Six of the test locations allow an experiment to be isolated from the primary cooling system, providing its own environment for temperature, pressure, flow and chemistry, replicating the physical environment while accelerating the nuclear conditions. The ATR is a pressurized light water reactor (LWR), using water as both coolant and moderator.
Hydrophobic concrete can be used in the same applications as regular concrete, most often where regular concrete is dangerous to repair or the cost of structural damage would be highly detrimental. Tunnel work is a major application of hydrophobic concrete as underground repairs are difficult and costly. [8]