Durability indicators of SCC

Towards performance-based specifications for the durability of SCC

The fundamental principle behind the development of SCC has been the nanoscale tailoring of cementitious matrices. Although self-compacting concrete (SCC) is currently used in many countries, there is a fundamental lack of the intrinsic durability of the material itself. The scope of the current paper is to present the outcomes of a research study on some principal indicators (porosity and capillary absorption) that define the durability of SCC, and how these are compared with the corresponding parameters of conventional concrete. Furthermore, this paper investigates the addition of industrial by-products, such as fly-ash or lime powder, to SCC mixtures and their effect on the durability indicators.

The issue of durability

The potential for improved durability was one of the factors that led to the development of SCC. The densified microstructure and the improved consolidation of SCC can result in better durability. The pore structure of the bulk paste and the interfacial transition zone characteristics of SCC are often improved due to the relatively low water to binder ratios. The significantly improved stability, reduction in bleeding and elimination of vibration can lead to a denser interfacial transition zone and hence to better durability. The durability aspects of SCC have recently...


Find out more in the issue. Order now.

Advertisement


BFT-Newsletter


Interest in our newsletter?
  Suscribe for free!

subscription/test subscription

You want to order a subscription/test subscription?
If so you are right here!  Here to order

BFT 2013 - Annual table of content