最后，用R BF神经网络模型预测了石屑混凝土的长期干缩值。

Lastly, the values of long-term dry shrinkage of crushed sand concrete were observed and predicted by using RBF neural network model.

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延长混凝土的早期水养时间，并不会减少混凝土的干燥收缩值，反而会使干缩速率加快；

The early water curing of concrete is longer and then the rate of late drying shrinkage of concrete is faster.

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