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Q. |
Which of the following statement is wrong? |
A. | The coarse sand produces a harsh and unworkable mix. |
B. | An admixture cannot increase the workability of concrete without increasing water content. |
C. | Salts of manganese cause a considerable reduction in the strength of concrete. |
D. | all of the above |
Answer» B. An admixture cannot increase the workability of concrete without increasing water content. |
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