Extracted text: Q2- A concrete mix of old C(1: 1.5 : 3/0.5) (by weight) is used for casting in cold weather. Calculate: 1. The temperature of fresh concrete. 2. The temperature of heated mixing water if it is required to use to meet the specification requirements in Cold Weather (60 °F ). Assume: S.G. of aggregate = 2.65. Te = 25 °F, Ta = Tm = 20 °F