The two important factors of affect concrete durability are AAR (Alkali aggregate reaction) and freeze-thaw cycles.

碱骨料反应和冻融循环是影响混凝土耐久性的两个重要因素。

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The results of durability test show its service life has been over 100 cycles, so the problems mentioned above have been overcome.

耐用性试验的结果表明，使用寿命已超过100次，从而解决了上述的问题。

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The concrete with this product has excellent anti-frost durability, with a relative dynamic elastic modulus of 97% after 300 cycles of freezing-and-thawing.

混凝土抗冻融300次时，动弹性模量为97%，混凝土具有优良的抗冻融耐久性。

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Management fashion (an academic term used neutrally, implying no judgment as to merit or durability) typically follows life cycles, with the distinction of fad or classic being determinable approximately five years after the fashion has gained momentum.

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Which means the very durability that makes plastic so useful to humans also makes it incredibly harmful to all the natural life cycles in every ecosystem worldwide.

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