ACI Strength Exam Study Guide 2023/2024 with Complete Solutions!!

ACI Strength Exam Study Guide 2023/2024 with Complete Solutions!! Name the two allowable materials with with concrete cylinders may be capped with. - Correct Answer I. High-strength gypsum II. Sulfur mortar III. Neat cement paste Name the three materials with with cylinders may be capped against. - Correct Answer I. Glass II. Metal III. Granite Prior to beginning the capping procedure, what must the metal plate be inspected for? - Correct Answer I. Grooves II. Gouches III. Indentations What is the maximum allowable size of any indentation on the base plate? - Correct Answer 0.010 in [0.25 mm] Upon receipt of the caping material, for how long can it be kept in intervals? - Correct Answer 3 months When must the neat cement paste be applied it to the cylinder? - Correct Answer Immediately For how long must the concrete settle in the mold prior to applying the neat cement paste? - Correct Answer 2 to 4 hours Prior to capping, name the three tasks that must be performed on the cylinder. - Correct Answer I. Inspect for any bumps greater than 1/8" II. Remove foreign debris. III. Remove any excess water or laitence. What is the required position of the concrete cylinder? - Correct Answer 90° ± 0.5° Name the required temperature range of the heated sulfar mortar mixture. - Correct Answer 265°F to 290 °F [130 °C to 145 °C] What is the maximum number of times that the heated sulfur may be used per cylinder capping procedure? - Correct Answer 5 times These procedures for capping enable concrete cylinders and cores to meet the standard practice's requirements for _____ and _____. - Correct Answer perpendicularity ... planeness ... perpendicularity