【摘要】 在混凝土中掺加粉煤灰能提高硷的后期强度、并使其具有护筋特性更多还原

【Abstract】 This artical discusses that when the Fly Ash was mixed with conetete, the later period strength of the concrete can be arised,and the chareter of its protecting reinforcing bar had also been produced.更多还原