172 Flashcards
1
Q
three sampling methods
A
stationary, paving, revolving drum mixers
2
Q
obtain what type of sample
A
representative
3
Q
ensure what has been added before sampling
A
all water ad any admixtures
4
Q
what do you do once you transport individual samples to the place where they will be tested?
A
combine and remix
5
Q
obtain composite sample within how many minutes from the start of sampling
A
15
6
Q
start tests within how many minutes?
A
5
7
Q
start molding after how many minutes
A
15
8
Q
protect sample from sun wind rain evaporation and
A
contamination
