You have been introduced to the process of batching and mixing concrete given a mix design. Determine a mix design that meets the following criteria: a. Target strength: 4,000 psi b. Target slump: 2 inches c. Moisture content (FA) = 8 percent d. Absorption content (FA) = 3 percent e. Moisture content (CA) = 3 percent f. Absorption content (CA) = 1 percent g. Fineness modulus of CA = 2.6 h. Dry-rodded unit weight of coarse aggregate: Select a value based on the class data gathered in lab 1 or assume 97 lb/ft i. Specific gravity of cement, fine aggregate and coarse aggregate = 3.15, 2.65, and 2.68 respectively The concrete is to be used for an approach slab in Northern New York which has dimensions of 10 ft wide by 20 ft in length and thickness of 8 inches. Reinforcement is placed with a clear spacing of 8 inches in the longitudinal direction and 12 inches in the transverse. In determining the amount of concrete needed for the slab you may neglect the reinforcing bar and only use the 10ft x 20ft x 0.67ft slab dimensions. You should complete a mix design that includes the batch weights of cement, fine aggregate, coarse aggregate and water. Include the estimated water cement ratio, amount of entrained air and slump in this design. Use the guidelines put forth in Civil Engineering Materials, 2nd Edition by Somayaji on pages 165-175. Make sure you adjust the amount of water batched for the mix to account for the moisture condition of the aggregates. Be sure to cite you work. Reference the tables that you use, citing the source and page number. You will notice that many of the tables make reference to ACI 318 and 211 codes. This is the standard where these tables originate from. You should reference this as well. Label each step of the process as well similar to the text book so it is easier to follow. This assignment can be done in your groups, with one submission needed per group. Make sure that everyone in the group has a good understanding of the process. Do not just let one person do the assignment; everyone should be a part of this as some of this information may appear on an exam. The assignment should be neatly written or typed. Grading: 25% will be based on presentation of the work and 75% on the accuracy.