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(iii) Using a labelled strain–strength sketch, explain the limitation of using Portland
cement.
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[2 marks]
(iv) Explain briefly, using specific examples, TWO measures to reduce energy
consumption during the production of PCC.
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[4 marks]
(v) Sketch a section of a simple suspended reinforced concrete beam. Clearly justify
the role of reinforcement in the Portland cement concrete matrix
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[4 marks]
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02265020/SPEC 2015
