IMPORTANCE OF MICROSTRUCTURAL UNDERSTANDING FOR DURABLE AND SUSTAINABLE CONCRETE
This paper presents the importance of microstructural studies for understanding concretedurability. Three examples-sulfate attack; alkali silica reaction and bacteriogenic corrosionin sewers are used to illustrate the pitfalls which can arise from conventional empiricaltesting, particularly when blended or non-Portland cements are used. The pressure to providemore sustainable cements with lower CO2 emissions will inevitably lead to major changes inthe chemistry of concrete. Therefore it is important to properly understand durability and themicrostructural mechanisms involved to design appropriate performance based criteria tousing the increasing diversity of concrete which will become available.
Karen L.Scrivener
Laboratory for Construction Materials,EPFL,Lausanne Switzerland
国际会议
南京
英文
333-344
2008-10-13(万方平台首次上网日期,不代表论文的发表时间)