Steel slag is not better to produce cement or mineral admixture of concrete because of poor grindability, larger fluctuation of chemical and mineral components, poor stability and so on.

由于钢渣成份波动大、易磨性差以及稳定性不好，钢渣用作水泥混合材或混凝土掺合料均难以达到高效、高值化利用的目的。

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Final results of experiment indicate that adding some synthetic fiber to HPC with the mineral admixture or cement mortar can decrease cracking 95% at least and enhance the durability of concrete.

试验结果表明，在掺活性掺合料高性能混凝土中掺加一定量合成纤维可以使混凝土或砂浆减裂95%以上，并可以提高混凝土耐久性。

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