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soleymaninia, S. (2016). Effect of Nano-Silica and Superplasticizer on Concrete Abrasive Resistance of Hydraulic Structures. , 16(65), 145-158. doi: 10.22092/aridse.2016.105707
sakineh soleymaninia. "Effect of Nano-Silica and Superplasticizer on Concrete Abrasive Resistance of Hydraulic Structures". , 16, 65, 2016, 145-158. doi: 10.22092/aridse.2016.105707
soleymaninia, S. (2016). 'Effect of Nano-Silica and Superplasticizer on Concrete Abrasive Resistance of Hydraulic Structures', , 16(65), pp. 145-158. doi: 10.22092/aridse.2016.105707
soleymaninia, S. Effect of Nano-Silica and Superplasticizer on Concrete Abrasive Resistance of Hydraulic Structures. , 2016; 16(65): 145-158. doi: 10.22092/aridse.2016.105707

Effect of Nano-Silica and Superplasticizer on Concrete Abrasive Resistance of Hydraulic Structures

تحقیقات مهندسی سازه های آبیاری و زهکشی
Article 11, Volume 16, Issue 65, January 2016, Pages 145-158    PDF (10.65 M)
Document Type: Original Article
DOI: 10.22092/aridse.2016.105707
Author
sakineh soleymaninia*
Abstract
Conventional concrete is widely used in hydraulic structures because of its availability. It is, however, possible to add compound nano-materials with very low weights to strengthen and increase the durability of concrete and, in this way, to increase its lifespan. The present research examined the effects of nano-silica and superplasticizer (resin-based plasticrete) additives on the abrasive strength of the concrete compared to conventional concrete. The test scenarios to create the desired concrete types used cement types 2 and 5. Nano-silica was added at 2%, 4%, 6%, 8%, and 10% of the weight of the cement. The super-plasticizer was tested at 0.5%, 0.8%, 1.1%, 1.4%, and 1.7%. All tests were conducted at the Niktaban-Dez laboratory over processing periods of 7, 28, and 42 d. A total of 60 tests for level of abrasion were done on the specimen. The results showed that by adding nano-silica and super-plasticizer to concrete made with cement types 2 and 5 initially increased and then decreased the abrasive strength of the concrete compared to conventional concrete. The mass loss with the addition of 6% and 8% nano-silica decreased and then increased. The minimum mass at 7, 28, and 42 d decreased 40%, 31% and 50% for type 5 cement and 27%, 32% and 50% for type 2 cement, respectively, over conventional concrete. The results showed that the abrasive strength with the optimum percentage of nano-silica and superplasticizer, respectively, was 6% and 0.8% for type 2 cement and 8% and 0.8% for type 5 cement.
Keywords
Abrasive Strength; Concrete Admixture; Concrete Durability; RB Plasticrete
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