Q1.    Your battalion has been tasked to replace a 5-inch-thick 2,000-square-yard reinforced concrete parking lot located at a naval air facility in northern Japan (extreme exposure). Your job is to design a concrete mix and determine the total quantities of materials needed to complete the project. Based on the parameters listed below, what is the (a) maximum size of the coarse aggregate that you should use, (b) amount of water (in gallons) needed for a 1-cubic-yard trial batch (c) amount of sand (in pounds) needed for a 1-cubic-yard trial batch (d) number of sacks of Type IA cement needed for the project, and (e) the amount (in tons) of coarse aggregate needed for the project?