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標題: 以飛灰及爐石改善再生混凝土之工程性質
作者: 彭獻生
關鍵字: 再生混凝土;飛灰;爐石
出版社: 國立中興大學工學院;Airiti Press Inc.
Project: 興大工程學刊, Volume 14, Issue 3, Page(s) 211-218.

Due to lower compressive strength and worse workability of recycled aggregate concrete (RAC)m it will be limited in the application of construction. Pozzolans such as fly ash and slag could increase compressive strength and workability when it applies on concrete. In this research the recycled aggregate concretes were produced by using the same water to binder ratio and different replacing percentage of fly ash and slang to cement. The engineering properties of recycled aggregate concrete were investigated to determine to optimum replacing amount and rate of fly ash and lag. Test results show that it could increase the compressive strength and the elastic modulus of RAC of reach the same level with natural aggregate concrete for using below 30% of fly ash or below 50% of replacement. Moreover, the defects of inferior workability and the higher sump loss of recycled aggregate concrete could be greatly improved. So, it could enhance the application of recycled aggregate concrete in construction by using pozzolans to replace parts of cement.
ISSN: 1017-4397
Appears in Collections:第14卷 第3期

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