处理后的粉煤灰可作为优质的混凝土掺合料。
给出了混凝土掺合料的定义，介绍了它的各项技术指标。
The definition of concrete mixed materials is given out and the several technical indexes are introduced.
介绍了一项最新建材专利技术中低强度等级混凝土掺合料技术。
A new building material patent: concrete mixed material with middle and low strength is invented.
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