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Durability of low strength concrete with high volume fly ash subjected to sulfate attack



Title: Durability of low strength concrete with high volume fly ash subjected to sulfate attack
Author(s): G. CH. Long, Y.J. Xie
Paper category : conference
Book title: International Conference on Microstructure Related Durability of Cementitious Composites
Editor(s): W. Sun, K. van Breugel, C. Miao, G. Ye and H. Chen
Print-ISBN: 978-2-35158-065-3
e-ISBN: 978-2-35158-084-4
Publisher: RILEM Publications
Publication year: 2008
Pages: 619 - 627
Total Pages: 9
Nb references: 7
Language: English


Abstract: Based on the simulating actual sulphate ambient, experiments were carried out to investigate the variations of compressive strength, dynamic elastic modulus and mass of low strength concrete with high volume fly ash under immersing into sodium sulfate solution. And the related mechanisms were discussed. Results indicate that the compressive strength, dynamic elastic modulus and the mass change of low strength concrete were influenced greatly by sulfate solution immersion condition, water to binder, fly ash to cement ratio.
Compared with immersion in pure water condition, the compressive strength and dynamic elastic modulus of concrete at corresponding ages is larger under immersion in sodium sulfate solution. The mass of concrete sample increased with the increasing immersion age in investigated age. It follows that low strength concrete with high volume fly ash under sulfate solution immersion condition is durable.


Online publication: 2009-06-09
Publication type : full_text
Public price (Euros): 0.00