1.

The micro cracks develop as soon as the tensile strain in concrete exceeds about:

A. 80-100√ó10<sup>-6</sup> units
B. 100-150√ó10<sup>-6</sup>units
C. 150-300√ó10<sup>-6</sup> units
D. 300-500√ó10<sup>-6</sup> units
Answer» B. 100-150‚Äö√†√∂‚àö‚â•10<sup>-6</sup>units


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