隨著砼技術的發展，高強已不再是砼的首要指標，而越來越多地強調力學性能、耐久性以及經濟性的統一。本文作者著重介紹應用粉煤灰砼的歷史、現狀以及發展趨勢，探討大摻量粉煤灰高性能砼的社會經濟意義、性能、應用前景以及存在的問題。
　　關鍵詞　粉煤灰砼　綠色材料　活性效應　后期強度

APPLICATION OF PFA HIGH PERFORMANCE CONCRETE
OF HIGH REPLACEMENT LEVELS

Chen Yu Zhou Shiqiong
(Civil and Architecture Institute，Chang Sha Railway University，Changsha 410075)

Abstract:With the development of concrete technology，high strength is no longer the first important target of high performance concrete and emphasis is more and more put on the unity of mechanical properties，durability and economic benefits of concrete.In this paper，the authors introduced the history，current situation and development trend of the application of PFA concrete，meanwhile analyzed the social and economic significance，properties，application prospect as well as some existing problems of PFA high performance concrete of high replacement levels.
Keywords: PFA high performance concrete，green material，active effect，later-stage strength