ACI Aggregate Testing Technician - Level 1 - Section 3

ACI Aggregate Testing Technician - Level 1 - Section 3 During this test method, water-soluble materials, clay particles, and incidental aggregate particles are removed from the aggregate. True or False? True Of the two possible test procedures, Procedure A is to be used unless otherwise specified. True or False? True In one of the methods only ____ is used for washing and in the other method a ____ is used as well. Water, wetting agent The purpose of using a wetting agent is to ____ finer than the 75 μm sieve from the coarser material. Loosen material Dry sieving separates out the finer particles more effectively than wet sieving. True or False? False; wet sieving works better The kinds of materials that respond well to wetting agents include ____ coatings, coatings on aggregates that have been extracted from mixtures. Clay, bituminous Complete the list of equipment needed to carry out the procedures: a) a b