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简述如何通过调整混凝土配合比以改善混凝土的抗渗性(不掺加任何外加剂)?

问答题
2022-04-02 18:27
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正确答案
通过调整混凝土配合比(不掺加任何外加剂)以改善混凝土的抗渗性的方法有:(1)采用收缩性较小的水泥,避免使用早强型水泥,有条件时可使用膨胀水泥(收缩补偿型水泥),以减小混凝土的收缩变形;(2)尽量减小水胶比,以提高混凝土的强度和密实度;(3)采用级配良好的骨料,采用中砂及合理砂率,尽量采用碎石,提高混凝土的密实度。

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