【摘 要】
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The present study investigates the compressive strength, water absorption, electrical resistivity, and chloride permeability of self-compacting mortar (SCM) specimens containing fly ash and nano-TiO2
【机 构】
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School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 2
【出 处】
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The 14th International Congress on the Chemistry of Cement (
论文部分内容阅读
The present study investigates the compressive strength, water absorption, electrical resistivity, and chloride permeability of self-compacting mortar (SCM) specimens containing fly ash and nano-TiO2 (NT).Portland cement was replaced by 1%, 2%, 3%, 4% and 5% TiO2 nanoparticles and then fly ash (FA) with the ratio of 25% of the weight of cement was constantly added.Rheological, mechanical and durability properties of the produced samples were assessed.Water absorption, electrical resistivity, and rapid chloride permeability tests (RCPT) were conducted to determine the durability properties of SCMs.The results show that the presence of the nanoparticles enhance the mechanical and durability properties of specimens.The highest compressive strength and chloride permeability improvement was observed through 5wt% replacement of nanoparticles,while specimens involved 4wt% NT had the best result in water absorption and electrical resistivity.On the whole, it can be concluded that the properties of mixtures have been significantly improved by replacing cement with nano-TiO2.
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