Test 2 Flashcards
1
Q
structural strength of concrete is heavily dependent on aggregate quality because…
A
coarse and fine-grained aggregate make up approx 3/4 of total concrete volume
2
Q
where do we get most aggregates from?
A
natural sand & gravel deposits, or made from crushed rock
3
Q
5 qualifications of good aggregate
A
- strong
- clean
- resistant to freeze-thaw deterioration
- chemically stable
- properly graded for size distribution
