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A reply to the discussion by W. Barry Butler on “damage of concrete sleepers by calcium chloride”

✍ Scribed by L. Berntsson; S. Chandra


Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
63 KB
Volume
12
Category
Article
ISSN
0008-8846

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A discussion of the paper “damage of con
✍ W.Barry Butler 📂 Article 📅 1982 🏛 Elsevier Science 🌐 English ⚖ 52 KB

In their paper, Berntsson and Chandra make rather emotive conclusions about the influence of calcium chloride on concrete durabillty based on litt]e, If any, substantive evidence. Having just read "The Chloride Scare" by Ted Webster (1), our reaction to the Swedish paper was inevitable.

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✍ P.K. Mehta 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 75 KB

In regard to the specific value of the strength loss on sulfate attack, the author and his co-workers (6)\* reported 40% loss of compressive strength in 90-day old alite pastes which contained 6% gypsum. It is possible that in the presence of sulfate ions the decrease in the stiffness of C-S-H, whic

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✍ P.K. Mehta 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 55 KB

In regard to Dr. Chatterji's comments, the author agrees that many investigators including Lea have pointed out the detrimental effect on strength associated with gypsum formation during sulfate attack on portland cement concrete. In the earlier literature, however, the strength loss due to gypsum f