Aci - Concrete Strength Testing Technician (Cstt) Study Guide With Complete Solution!!

ACI - CONCRETE STRENGTH TESTING TECHNICIAN
(CSTT) STUDY GUIDE WITH COMPLETE SOLUTION!!
Standard Practice for Capping Cylindrical Concrete Specimens

answers: ASTM C617

Procedures for capping enable concrete cylinders and cores to meet C617's practice
requirements for___ and___.

C617



answers: perpendicularity, planeness



C617, 3.1

____ ____ can be made of glass, machined metal, polished granite, or diabase.

C617



answers: Capping plates



C617, 4.1

Sulfur caps can be formed against ___ or___ plates.

C617



answers: metal, stone



C617, 4.1

,The working surface of a capping plate shall not depart from a plane by more than
___ inch ( ___ mm) in 6 inches (150 mm).

C617



answers: 0.002 inch (0.05 mm)



C617, 4.1

Device used in conjunction with a capping plate to ensure perpendicularity.

C617



answers: Alignment device



C617, 4.2

Perpendicularity requirement of the axis of a cylindrical specimen is ___° .

C617



answers: 0.5°



C617, 4.2

The element of a melting pot that ensures against accidents during the reheating of
cooled sulfur.

C617

, answers: Peripheral Heating



C617, 4.3.1

Temperature of the sulfur mortar pot / materials.

C617



answers: 265 - 290°F (130 - 145°C)



C617, 5.4.2

Capping material to be used on freshly molded cylinders.

C617



answers: Neat Portland Cement paste



C617, 6.1

Remove this from the end of cylinders before capping.

C617



answers: oily or waxy materials



C617, 6.2.1

Materials that can be used to cap hardened cement concrete cylinders are ___ , ___
, ___ .