Mitigation of the negative effects of recycled aggregate water absorption in concrete technology

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• 作者：Matthias Eckert ; ^{mabaec@yahoo.de} ; Miguel Oliveira
• 关键词：Recycled aggregate ; Concrete ; Interfacial transition zone ; Water absorption ; Compressive strength ; Shrinkage
• 刊名：Construction and Building Materials
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：133
• 期：Complete
• 页码：416-424
• 全文大小：527 K
• 卷排序：133

文摘

A staged-mixing procedure was optimized to regulate the ITZ water flow. It is an economical approach to improve RAC, which can be industrially used. It allows good workability levels, of RAC, during 3 h. A shrinkage test showed that it reduces the sensibility of early age cracking. RA properties are inferior to NA properties, reducing the concrete performance.