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Corrosion of Permeable Concrete under Simulated Acid Rain
A long time immersion test of concrete specimens in dilute sulfuric acid is carried out to study the permeable concrete material aging rule under the action of the sulfuric acid. The experiment is designed by uniform design containing 4 factors and 10 levels and the soaking solution pH value is 4.00. To measure acid consumption, titration sulfuric acid with concentration of 0.125mol / L is used to keep original pH value of soaking solution, through which the corrosion rate of specimens can be determined. After certain immersion time, the specimens are dried and weighted and the weight changes of the specimens are recorded. The results show that corrosion rate of permeable concrete shares the same family of corrosion rate functions with those of ordinary concrete and mortar. However, the weight of specimen fluctuates with the soaking time, so that it may not be a proper index of corrosion.
Corrosion of Permeable Concrete under Simulated Acid Rain
A long time immersion test of concrete specimens in dilute sulfuric acid is carried out to study the permeable concrete material aging rule under the action of the sulfuric acid. The experiment is designed by uniform design containing 4 factors and 10 levels and the soaking solution pH value is 4.00. To measure acid consumption, titration sulfuric acid with concentration of 0.125mol / L is used to keep original pH value of soaking solution, through which the corrosion rate of specimens can be determined. After certain immersion time, the specimens are dried and weighted and the weight changes of the specimens are recorded. The results show that corrosion rate of permeable concrete shares the same family of corrosion rate functions with those of ordinary concrete and mortar. However, the weight of specimen fluctuates with the soaking time, so that it may not be a proper index of corrosion.
Corrosion of Permeable Concrete under Simulated Acid Rain
Guo, Hui-Fang (author) / Song, Zhi-gang (author) / Yang, Sheng-Yuan (author)
2012
5 Seiten
Conference paper
English
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