1. Circle the most appropriate response (s) to each of the given stament (s) from the given list of probable correct responses. A. The water/cement (w/c), ratio is a ratio of (i). Volumes (ii), Weights (iii). Water content and mass of cement (iv). Three of the above .(V). None of the above/nB. A normal weight concrete weighs 145 pcf and has a specified ultimate strength of 3000 psi. It's modulus of elasticity, E is:" (1). 57000 (3000) / psi (ii). 3.6 10 psi (iii). 3:1 * 10 psi (iv). Three of the above (v). (a) and (c) (vi). None of the above/nc. The "ultimate concrete strength" can be described as: (i). The concrete strength beyond which it fails (ii). f'ç (iii). Allowable stress in working stress design (W.S.D.) method (iv). All of the above (v). (i) or (ii)/nD. If the thermal coefficient of expansion and contraction for concrete is given as 0.0000055 in/in per degree. Fahrenheit, and a reinforced concrete bridge spans 60 feet. The temperature change is from -5 degree Fahrenheit to. + 115 degree Fahrenheit. The overall dimensional change in the bridge's length is: (1). (0:0000055 in/in per deg. Fah.) (110 °F) (60 ft) (11). (0.0000055 in/in per deg. Fah.) (130 °F) (60 ft) (iii) (0.0000055 in/in per deg. Fah.) (120 °F) (60 ft) (iv). (0.0000055 in/in per deg. Fah.) (120 °F)/(60ft) (V.). None of the above ./nE. The primary detrimental effect of excess water to a concrete mix design with all other ingredients unchanged. is/are: (i). Reduction in concrete strength (ii). Reduction in concrete hardness (iii). Reduction in concrete durability (iv). Reduction in concrete resistance to chemical attack (v). Reduction in concrete's freeze-thaw resisting ability (vi). All of the above

The official end of the project occurs when the architect releases a *certificate of substantial completion *RFI *change order statement of proposal *bid bond

1. (5 points) Compute oMn for the T-beam shown below. Also determine the value for Asmin. f'c = 4500 psi and fy =60 ksi.

7. Explain why the minimum reinforcement for flexure and shear is required for RC structures.

4. Re-solve problem #1 using a yield strength of 60 ksi and a cantilever boundary condition

A hot-mix asphalt recycling project is to have between 20%-40% RAP aggregates in the asphalt concrete. Virgin aggregates will come from two sources; A and B, and are to be blended in the proportion of 70%A and 30%B. Solvent extraction test on the RAP material gave an asphalt content of 5.1%. The absolute viscosity of the reclaimed asphalt binder was 90,000poise. The new asphalt selected for the project is a blend of AC-10 and a recycling agent (rejuvenator) whose viscosity is10poise. The gradation of the aggregates involved in the project is as detailed below. As the engineer responsible for the design of the recycling project, and based on yourrecommendation of the % of RAP aggregates to be used, determine the following; the gradation of the recycled mix; the approximate asphalt demand of the mix; the range of asphalt contents to be used for the trial mix design in the lab; the percent new asphalt required; the proportions in which the AC-10 and recycling agent are to be combined for the newasphalt.

The compound beam ABCDE shown in figure (a) consists of two beams (AD and DE) joined by a hinged connection at D. The beam has the cross section shown in figure (b). The loads on the beam consist of a 4-kN force at the end of a bracket attached at point B and a 2-kN force at the midpoint of beam DE. 1) Determine the maximum bending stress in the beam. 2) Sketch the stress distribution over the cross section at a section 5 m to the right of point

Part 2: Design for durability The objective is the design for durability of three structural members of a girder Bridge according to AS5100.5. Design for durability will include specification of concrete (concrete characteristic compressive strength and mix design) and concrete cover for the three structural reinforced concrete members to satisfy the 100 years service life. The three reinforced concrete members to be designed for durability are: 1- Foundations: reinforced concrete footings 2- Bridge piers: reinforced concrete columns 3- Bridge deck: reinforced concrete top-slab

1-33 A student accepts a full-time job in November, but a better job comes before graduation in May. What are the ethical dimensions of the student's decision? Would you take the better job? Why or why not?

1. On a proposed site plan for a building, the reference elevation is listed as 456"-3" in the notes. An elevation listed for the top of one side of a building is 112'-9". The actual elevation of the top of the building at that location is