Traditionally, the civil worker has paid more attentions on the cement, the water ratio as well as the admixture such as the fly ash and the silicon ash.

以往的研究，土木工作者把更多的注意力放在了水泥、水灰比、外加剂以及粉煤灰和硅灰等外掺材料中。

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The most effective ingredients for making up high performance concrete are super-plasticizing agent, fly ash or slag powder, silicon powder.

配制高性能混凝土最有效的几种组分是超塑化剂、粉煤灰或矿渣、硅粉。

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Also the economic and social benefits of producing silicon fertilizer from fly ash and iron slag were discussed, which could offer a new way for the comprehensive utilization of cinder and iron slag.

最后评估了利用粉煤灰、炼铁炉渣开发硅肥的经济效益和社会效益，这将为粉煤灰、高炉渣综合利用开辟提供有价值的参考。

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