13: What are project closeouts? Question 14: Explain the importance of clarifying the scope of work. Question 15: What is the main purpose of design validation technique? Class Activities: Activity 1: Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement that hardens over time. As a warm-up, write down the key things that comes to your mind when you think of preparing detailed design of civil concrete structures in a civil construction project. Activity 2: On your own, or with a partner, take another look at the list above. Rank each point in order of importance to you. Then, (if you are working with another person), compare your results with your partner. If you are working alone, use the space below to make some reflections on your list. Points for reflection: 1) Which aspect of preparing detailed design of civil concrete structures is the most important to you? Why? 2) Which is the least important? Why? 3) Do you think that different aspects may be more or less important to you and to others at different points of the lifespan? Why do you think people's priorities may change at different points