Design a concrete mixture for a column that will be exposed to freezing and thawing and which will be in contact with soil that has a sulfate content of 0.3%. The project contract stipulates that the concrete should have a 28-day compressive strength of 4,000 psi. The only admixture allowed in this concrete is the air-entraining agent. Assume slump of 4.5 in. Report the results per 1 cubic yard based on the given aggregate moisture content (i.e. report actual weights of aggregates that you will need considering their state of moisture). Use absolute volume method. Statistical data are available from similar mixtures. There is no significant variability. Assume the following properties of the materials:• Cement: (assume that all types of cement have specific gravity of 3.15)• Coarse aggregate: nominal maximum size="4 in., bulk specific gravity (SSD)=2.65; absorption = 1.5%; surface moisture (SSD basis) = 1.0%; dry-rodded unit weight =105 1b/ft".• Fine aggregate: bulk specific gravity (SSD) +2.75; absorption = 1.0%; surface moisture (SSD basis) = 3.0%; fineness modulus =2.70.a) Pay attention to type of cement required for this applicationb) Since the available aggregates are not in SSD conditions, nor are they in the oven dry (OD) conditions, it is necessary to adjust their weights for the amount of water they contain. As an example, dry aggregate will absorb water from the mix (until it reaches SSD condition) and that needs to be accounted for (by increasing the amount of design (batch) water). Similarly, wet aggregate will contribute all water (above that needed for it to achieve SSD condition) to the mixture and that water has to be subtracted from the design water.c) Surface Moisture (SM) = W stockpile-WsSD W SSD