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Crushing Under Building Construction

2017-3-152.3. Testing methods. The crushing index was determined in accordance with Pebble and crushed stone for construction GBT14685-2011 .Firstly, 3000 g of sample M 1 was put into the determinator under pressure testing.Then test machine was started by the velocity of 1 kN per second until the load of 200 kN.

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