低标号水泥
Some concrete dams having been built in China adopt the alkali aggregate, due to adopt the low grade cement and lots of active mixing, the alkali-aggregate reaction has still not been found in those dams up to now.
中国已建的混凝土大坝中,有些也含有一定量的碱活性骨料,但由于采用了低标号水泥和大量的活性混合材,因此至今未发生碱骨料破坏反应;
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