Concrete Technology and Design of Concrete Structures
As compared to ordinary portland cement, high alumina cement has

higher initial and final setting times
higher initial setting time but lower final setting time
lower initial setting time but higher final setting time
lower initial and final setting times

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Concrete Technology and Design of Concrete Structures
The diameter of ties in a column should be

More than or equal to 5 mm
More than 5 mm but less than one-fourth of diameter of main bar
More than or equal to one fourth of diameter of main bar
More than 5 mm and also more than one-fourth of diameter of main bar

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