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Influence of Sulfate Ions on Chloride Attack in Concrete Mortars Containing Silica Fume and Jajrood Trass
https://orcid.org/http://orcid.org/0000-0002-7950-4089
The effect of sulfate ions on chloride penetration has not been investigated in detail. In this research, standard ordinary portland cement (OPC) mortar and partial cement replacement by silica fume (7.5%) and trass a natural pozzolan (17.5%) were used to investigate the effect of sulfate ions on chloride attack. After 28 days of moist curing, specimens were subjected to chloride–sulfate solutions for 60, 120 and 180 days. According to the results after 208 days, the sulfate intermediate leads to decreased chloride attack in the control and a slight increase in silica fume samples. Regarding the trass sample, an intermediate state occurred. Silica fume reduces chloride penetration significantly. Trass samples generally show better performance than the control in this respect. Rapid chloride migration test (RCMT) was used to determine a method to evaluate the samples behavior in combined chloride–sulfate solutions, quickly. According to the results, RCMT was not an appropriate test to determine chloride penetration in combined chloride–sulfate solutions.
Influence of Sulfate Ions on Chloride Attack in Concrete Mortars Containing Silica Fume and Jajrood Trass
https://orcid.org/http://orcid.org/0000-0002-7950-4089
The effect of sulfate ions on chloride penetration has not been investigated in detail. In this research, standard ordinary portland cement (OPC) mortar and partial cement replacement by silica fume (7.5%) and trass a natural pozzolan (17.5%) were used to investigate the effect of sulfate ions on chloride attack. After 28 days of moist curing, specimens were subjected to chloride–sulfate solutions for 60, 120 and 180 days. According to the results after 208 days, the sulfate intermediate leads to decreased chloride attack in the control and a slight increase in silica fume samples. Regarding the trass sample, an intermediate state occurred. Silica fume reduces chloride penetration significantly. Trass samples generally show better performance than the control in this respect. Rapid chloride migration test (RCMT) was used to determine a method to evaluate the samples behavior in combined chloride–sulfate solutions, quickly. According to the results, RCMT was not an appropriate test to determine chloride penetration in combined chloride–sulfate solutions.
Influence of Sulfate Ions on Chloride Attack in Concrete Mortars Containing Silica Fume and Jajrood Trass
https://orcid.org/http://orcid.org/0000-0002-7950-4089
The effect of sulfate ions on chloride penetration has not been investigated in detail. In this research, standard ordinary portland cement (OPC) mortar and partial cement replacement by silica fume (7.5%) and trass a natural pozzolan (17.5%) were used to investigate the effect of sulfate ions on chloride attack. After 28 days of moist curing, specimens were subjected to chloride–sulfate solutions for 60, 120 and 180 days. According to the results after 208 days, the sulfate intermediate leads to decreased chloride attack in the control and a slight increase in silica fume samples. Regarding the trass sample, an intermediate state occurred. Silica fume reduces chloride penetration significantly. Trass samples generally show better performance than the control in this respect. Rapid chloride migration test (RCMT) was used to determine a method to evaluate the samples behavior in combined chloride–sulfate solutions, quickly. According to the results, RCMT was not an appropriate test to determine chloride penetration in combined chloride–sulfate solutions.
Influence of Sulfate Ions on Chloride Attack in Concrete Mortars Containing Silica Fume and Jajrood Trass
Iran J Sci Technol Trans Civ Eng
Ramezanianpour, Ali Akbar (author) / Riahi Dehkordi, Erfan (author) / Ramezanianpour, Amir Mohammad (author)
2020-12-01
10 pages
Article (Journal)
Electronic Resource
English
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