12 Questions
What is the general classification of aggregates discussed in the text?
Fine and coarse aggregates
What is the typical size of fine aggregates?
0.185 inches
How are fine aggregates commonly produced?
By crushing and grinding larger pieces of aggregate
Which type of material can be a coarse aggregate?
Granite
How much do aggregates make up of the total mass of concrete?
75%
How do the physical properties of aggregates influence concrete properties?
They influence the strength and durability of concrete
What are aggregates?
Inert materials derived from rocks or manufactured materials
Why are aggregates often washed?
To decrease impurities that may hinder cement hydration
What is the major source of aggregates used in concreting?
Natural sands and gravels
Which is the most widely used class of concrete aggregate after natural sands and gravels?
Crushed stone
Where do natural deposits of sand and gravel serve as sources of aggregates?
For highway bases, subbases, and backfill
What should aggregates intended for bituminous or Portland cement concrete pavement be according to AASHTO?
Of good quality and meeting specific requirements for particle durability
Learn about the definition and types of aggregates used in concrete construction, including sand, gravel, crushed stone, cinder, and furnace slag. Understand the importance of aggregates in concreting and their sources.
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