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Questions and Answers
What are aggregates in concrete primarily composed of?
What are aggregates in concrete primarily composed of?
- Granular materials (correct)
- Organic materials
- Gaseous materials
- Liquid materials
What is the definition of coarse aggregate?
What is the definition of coarse aggregate?
- Portion passing the 4.75 mm (No. 4) sieve
- Granular material predominantly retained on the 4.75 mm (No. 4) sieve
- Granular material predominantly retained on the 75 μm (No. 200) sieve
- Portion retained on the 4.75 mm (No. 4) sieve (correct)
What are examples of lightweight aggregates used in concrete applications?
What are examples of lightweight aggregates used in concrete applications?
- Barite, magnetite, hematite
- Sand, gravel, slate
- Perlite, pumice, volcanic cinders (correct)
- Crushed stone, iron blast-furnace slag, shale
What percentage of the concrete mixture do coarse and fine aggregates constitute?
What percentage of the concrete mixture do coarse and fine aggregates constitute?
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In which applications are heavyweight aggregates used in concrete mixtures?
In which applications are heavyweight aggregates used in concrete mixtures?
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