sampling aggregates cp- 30

Question 1

finished product to be tested for abrasion shall not be what?

Answer 1

subject to further crushing or manual reduction in particle size

Question 2

sampling the initial discharge or final few tons from a conveyor belt or bin increases the chance of what?

Answer 2

seggregation

Question 3

belt discharge using hand tools

Answer 3

using a container at least 12 inches in diameter make several quick passes through the discharge

Question 4

belt discharge using an automatic belt sampler

Answer 4

it cuts the full discharge of the belt without the loss of any portion of the material take one or more samples to minimum test sample

Question 5

belt discharge using power equipment

Answer 5

front end loader positioned beneath the belt discharge material should be placed in separate pile and sampled using the pad method

Question 6

what kind of discharge sample cannot be used for acceptance test?

Answer 6

bin discharge

Question 7

dry batch

Answer 7

front end loader is positioned under the pugmill to obtain a large sample in one increment

Question 8

sampling from stopped conveyor belt

Answer 8

stop conveyor belt using two templates that are the shape of the belt carefully scoop material between the two to yeild the weight needed

Question 9

sampling from stockpiles

Answer 9

power equipment is always a first option the sample should be taken from the last stockpile prior to delivery to the spreader

Question 10

making a pad

Answer 10

power equipment should combine the material obtained in a separate pile flatten the pile to have a depth that is no thicker than 1 foot use a flat square shovel and sample the pad from atleast 3 locations sampling through the full depth