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Erschienen in:
2018 | OriginalPaper | Buchkapitel
Effect of Supplementary Cementing Materials on Concrete Resistance Against Sulfuric Acid Attack
verfasst von : Ali Akbar Ramezanianpour, Arash Zolfagharnasab, Farnaz Bahman Zadeh, Seddigheh Hasanpour Estahbanati, Reza Boushehri, Mohammad Reza Pourebrahimi, Amir Mohammad Ramezanianpour
Erschienen in: High Tech Concrete: Where Technology and Engineering Meet
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Abstract
Concrete durability is an inevitable consideration for sustainability of structures in aggressive environments. Therefore, the recent investigations are mainly based on the improvement of concrete durability such as resistance of concrete against acidic solutions attacks. This paper presents the experimental study on durability of concretes containing ordinary Portland cement (OPC), blast furnace slag (BFS) and natural pozzolan (NP) immersed in sulfuric acid solution. Mechanical properties and permeability of hardened concrete were determined by compressive strength and capillary water absorption tests. In addition, the durability properties and degradation intensity were studied through the measurement of weight loss, compressive strength loss and changes in ultra-sonic pulse velocity (USPV) in concrete specimens.
Results indicate that concretes containing supplementary cementing materials are more durable in acidic solution and incorporating higher volume of natural pozzolan could significantly improve performance of concrete against sulfuric acid attack. Besides, weight loss measurement was identified as a proper test method for indicating durability of concrete against sulfuric acid attack.