INVESTIGATION OF THE INFLUENCE OF SULFURIC ACID AND SULFATE ON CONCRETE CEMENTITIOUS SYSTEM PERFORMANCE

Author(s): L. Shi, J. Z. Liu and J. P. Liu
Paper category: Proceedings
Book title: Proceedings of CONSEC13 Seventh International Conference on Concrete under Severe Conditions - Environment and Loading Volume I
Editor(s): Z.J. Li, W. Sun, C.W. Miao, K.Sakai, O.E. Gjørv, N.Banthia
ISBN: 978-2-35158-124-7
e-ISBN: 978-2-35158-134-6
Publisher: RILEM Publications SARL
Publication year: 2013
Pages: 755-766
Total Pages: 961
Language : English

Abstract: Concrete has became the most widely used contraction materials in nowadays. More and more concrete contractures service in aggressive environment such as chemical contamination areas. Chemical corrosion can cause structure deterioration therefore the concrete durability under aggressive environmental actions should not be ignored. At the present stage, the investigation of concrete durability mostly bases on the effect of a single factor while most deterioration causes by coupling effect in practical engineering. Sulfate attack is an important damaging form for concrete serving in the environment of chemical corrosion and it has been studied for many years. Besides, concrete deterioration caused by single acid infringement such as sulfuric has also gradually been recognized by people with the continuous advance of industrialization. In many areas, especially in the mining tailings disposal area, there are both sulfuric acid and sulfate erosion media and concrete deterioration regularity under sulfuric acid and sulfates combined effect has to be investigated when such regions need alteration and reconstruction. It is known that cementitious system is the most important part in concrete therefore both cementitious system changes analysis and the mechanism explaination have the great significance to put forward the corresponding acid corrosion measures of concrete under sulfuric acid and sulfates combined effect.

Online publication : 2013
Publication type : full_text
Public price (Euros) : 0.00