Large volume waterproof concrete with C30 strength grade and seepage resistance P>25 can be mixed by adding expansion agent and reduce-water agent.

经试验表明，在砼中复合掺加膨胀剂和高效减水剂，可制得强度等级为C30，抗渗等级P＞25的大体积防水砼。

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Large volume waterproof concrete with C30 strength grade and seepage resistance P>25 can be mixed by adding expansion agent and reduce-water agent.

经试验表明，在砼中复合掺加膨胀剂和高效减水剂，可制得强度等级为C30，抗渗等级P＞25的大体积防水砼。

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