The water reducing agent of cement was prepared via sulfonation of semi-chemical pulping black liquor.

半化学浆黑液进行磺化改性制备水泥减水剂，并对改性工艺进行优化。

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The water reducing agent of cement was prepared via sulfonation of semi-chemical pulping black liquor.

半化学浆黑液进行磺化改性制备水泥减水剂，并对改性工艺进行优化。

youdao