ACI Aggregate Testing Technician - Level 1 - Section 1.

ACI Aggregate Testing Technician - Level 1 - Section 1. AASHTO T 2 / ASTM D75 Four purposes for which aggregates are sampled. a) for the acceptance or rejection of materials. b) for the control of operations at the site of use. c) for preliminary investigation of the potential source of supply. d) for the control of the product at the source of supply AASHTO T 2 / ASTM D75 Sampling should be done very carefully because it is as important as _____. Testing AASHTO T 2 / ASTM D75 A variety of people involved in the use of the aggregate samples are responsible for obtaining the samples. True AASHTO T 2 / ASTM D75 The _____ or _____ should obtain samples related to the control of production at the source or related to the control of the work at the site. Manufacturers, contractors AASHTO T 2 / ASTM D75 The purchaser is responsible for obtaining samples for preliminary investigation tests. False; purchaser is responsible for obtaining samples used in acceptance or rejection decisions AASHTO T 2 / ASTM D75 Samples to be tested for quality should, when possible, be obtained from the _____. Finished product AASHTO T 2 / ASTM D75 Appropriate equipment for inspection and sampling should be provided by _____. the seller AASHTO T 2 / ASTM D75 Use a ____ method for selecting samples from conveyor belts. Random AASHTO T 2 / ASTM D75 The four sources from which field samples can be obtained include: 1) flowing aggregate streams; 2) ______ 3) ______ or / and 4) _____ Conveyor belts, stockpiles or transportation units, roadway bases