试验还表明，当混凝土强度达到受冻临界强度后，随着负温值的增大其强度缓慢增长，弹性模量也有缓慢增长。
The experiment also shows that after the concrete strength reach the frost-resisting critical strength, its strength and elasticity module will increase slowly with the decrease of the temperature.
再生混凝土是否存在临界受冻强度；
Whether the recycled concrete does exist critical frozen strength ;
再生混凝土是否存在临界受冻强度；
Whether the recycled concrete does exist critical frozen strength ;
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