The experimental results show that as far as crack resistance of concrete is concerned, the surface feature of coarse aggregate is more sensitive than aggregate shape.

试验结果表明：集料的表面特征对混凝土抗裂性的影响比集料的颗粒形状更为敏感。

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The surface feature of aggregate, which have been pretreated by chemical method, and the structure of interfacial zone between aggregate and cement paste are studied.

研究了用化学方法处理后的骨料表面与界面过渡区结构特征。

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