HYDRATION, MICROSTRUCTURE AND DURABILITY OF SELF COMPACTING CONCRETE
Because of the different mix design in comparison with traditional concrete and the absence of vibration, different durability characteristics might he expected for self-compacting concrete (SCC). Indeed, the degradation mechanisms of a cementitious material are greatly influenced by the permeability of the material for potentially aggressive substances. As the pore structure might be different for SCC in comparison with traditional concrete, some changes in durability behaviour might be noticed. This paper is first giving an overview of hydration, pore structure, air-void system andtransport mechanisms of self-compacting concrete. Afterwards, available durability resultsare studied and summarised keeping in mind the fundamental mechanisms and driving forces.In this way some more general view on durability of Self-Compacting Concrete is obtained. All relevant durability issues are considered, like carbonation, chloride penetration, frostresistance, ASR, sulphate attack, thaumasite formation, and fire resistance. It is not theintention to give a review on these durability aspects for concrete in general. The aimhowever is to point at the specifics related to the use of SCC, e.g. due to the addition of alarge amount of limestone filler, etc...
G.De Schutter
Magnel Laboratory for Concrete Research,Ghent University,Belgium
国际会议
南京
英文
15-24
2008-10-13（万方平台首次上网日期，不代表论文的发表时间）