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Question
The bond between steel and concrete is mainly due to
1. Mechanical resistance
2. Pure adhesive resistance
3. Frictional resistance
The bond between steel and concrete is mainly due to
1. Mechanical resistance
2. Pure adhesive resistance
3. Frictional resistance
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Solution
The correct option is D 1, 2 and 3
(d)
(i) Mechanical resistance is provided due to gripping of steel bars due to shrinkage of concrete.
(ii) Pure adhesive resistance is provided by adhesive of chemical (C-S-H gel) produced by concrete during setting.
(iii) Frictional resistance is when bar has tendency to slip or move.
(d)
(i) Mechanical resistance is provided due to gripping of steel bars due to shrinkage of concrete.
(ii) Pure adhesive resistance is provided by adhesive of chemical (C-S-H gel) produced by concrete during setting.
(iii) Frictional resistance is when bar has tendency to slip or move.
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