The test result of change laws of weight indicates that, to the ordinary concrete under sulfate attack, the rate of change is quickly.
英
美
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各種混凝土的質(zhì)量變化規律表明,對于普通混凝土,其受到侵蝕后質(zhì)量變化幅度較大,前期增長(cháng)快,后期衰減也快,但在試驗周期內較初始質(zhì)量沒(méi)有損失;
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