1.2 Discuss the irony in lines 5 and 6. (3)

1.3.1 How would you best describe the ruler as he is portrayed in lines 11 and 12? (1)

  Refer to the poem “THE HAND THAT SIGNED THE PAPER” (TEXT A) and answer the following questions.

When the cement hydration reaction gypsum supply is exhausted but C3A is still available to react, what phase will form? 

For the following compound names, match the correct composition (using cement chemistry notation)

Name at least 5 of the 8 sources of water that can make it into a concrete mixture.

How does the rapid chloride migration test (NT Build 492) accelerate the chloride penetration into the concrete? 

Describe the Tuutti model and what it is used for.

Describe the interfacial transition zone, including why it forms, why it is important in concrete, and what can be done about it? 

You are working on a high rise construction project, and the mat foundation has a specification that requires the compressive strength to be 6000 psi. The mixture has 50% fly ash. You are worried about the concrete mixture having low strength. Which of the following changes in specification would help you show compliance with the strength requirement?