In very cold climates the following precaution should be taken for good concreting -
(a) Heat the aggregate to about 100°C
(b) Heat the aggregate to about 65°C
(c) Heat the aggregate to about 25°C
(d) Heat the water to about 70°C.
The correct Answer Is
(c) Heat the aggregate to about 25°C
(a) Heat the aggregate to about 100°C
(b) Heat the aggregate to about 65°C
(c) Heat the aggregate to about 25°C
(d) Heat the water to about 70°C.
The correct Answer Is
(c) Heat the aggregate to about 25°C