ACI CONCRETE STRENGTH TESTING TECHNICIAN CP 19 EXAM SCRIPT COMPLETE QUESTIONS AND CORRECT ANSWERS LEARNING RESOURCE

ACI CONCRETE STRENGTH TESTING
TECHNICIAN CP 19 EXAM SCRIPT
COMPLETE QUESTIONS AND CORRECT
ANSWERS LEARNING RESOURCE

●● never heat melting pot of sulfur ...
Answer: over an open flame


●● capping plates for neat cement paste or high-strength gypsum paste
may be made of ...
Answer: glass, metal, granite, or diabase


●● capping plates for sulfur mortar may be made of...
Answer: metal, granite, or diabase


●● alignment devices ensure caps are perpendicular to the axis of the cyl
within...
Answer: 0.5 degrees


●● use a melting pot for sulfur that has ___________ to avoid accidents
when reheating from pressure buildup
Answer: peripheral heating

, ●● three types of capping materials used for cylinders:
Answer: cement paste, high-strength gypsum, and sulfur mortar


●● strength of capping materials for cyl capping must be
Answer: 5000 psi or cyl strength


●● only capping material that can be used on freshly molded concrete
Answer: neat cement paste


●● neat cement paste strength depends on...
Answer: water-cement ratio, age of the cap, and type of cement used


●● if using a carpenter square and getting a height difference of ___, the
cap must be cut first
Answer: 1/8 inch


●● don't reuse sulfur in the pot more than ____ times
Answer: 5


●● sulfur can be reused if the cyls previously tested are lower than ...
Answer: 5000 psi