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Questions and Answers
What is the derivation of the word 'concrete'?
What is the derivation of the word 'concrete'?
- From the Latin concretus, meaning 'to grow together' (correct)
- From the Spanish concreto, meaning 'compact'
- From the Greek konkritos, meaning 'solidified'
- From the French concret, meaning 'solid material'
What are the primary components of concrete?
What are the primary components of concrete?
- Aggregates, steel reinforcement, water, and cement
- Aggregates, gypsum, water, and cementitious paste
- Aggregates, cementitious paste, water, and chemical admixtures (correct)
- Aggregates, lime, water, and chemical admixtures
What is the estimated annual consumption of concrete worldwide?
What is the estimated annual consumption of concrete worldwide?
- 15 billion metric tonnes
- 5 billion metric tonnes
- 8 billion metric tonnes
- 11 billion metric tonnes (correct)
What makes concrete popular for construction?
What makes concrete popular for construction?
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What is the typical composition of the cementitious paste in concrete?
What is the typical composition of the cementitious paste in concrete?
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