Slump Study guides, Class notes & Summaries

List the sequence of tasks from start of house to frame for a mono slab. - Answer- bench and balance / accurate stake / set forms / form board survey / plumbing underslab / plumbing inspection / prep slab and finish form boards / electrical underslab / soil test / county inspection/ white book in line inspection/ pour slab / rough grade. What does B&B stand for? - Answer- Bench and balance what is the psf of the soils have to be in the footing of a mono slab? - Answer- 2000 What is the ...

Concrete samples typically contained in order to perform the following standard concrete tests: _______ , ________ , _______ , and _______. - Answer- slump, plastic air content, temperature, and casting of compressive strength moulds What are the two types of sampling? - Answer- Evaluation of the concrete quality Evaluation of the uniformity Define the evaluation of the concrete quality sampling type. - Answer- Involves obtaining a single concrete sample at the appropriate location within...

Concrete Exam 2 Workability of concrete is best defined as: A) ability of the concrete to be mixed, placed, consolidated, and surface finished B) amount of water added to the concrete C) slump of the concrete D) flow ability of the concrete F) stiffness of the concrete - correct answer A Which of the following are mixture design proportioning methods? A) 1:2:3 OR 3:2:1 B) all these above C) Iteration (Trial Batching) method D) ACI 211 Absolute Volume - correct answer B What d...

2. T/F: When the concrete contains large aggregate, the testing technician should wet-sieve the sample before making unit weight tests for use in yield computations.Answer - False 4. T/F: Samples smaller than 28L (1 .) are allowed on routine air content, temperature, and slump tests.Answer - True 7. How do you regulate the rate of discharge of the batch from the revolving truck drum mixer or agitator?Answer - By the rate of revolution of the drum 10. While the technician is checking ...

ACI- Concrete Field-Testing Technician - Grade 1 (Working knowledge of seven basic field tests) latest update 2024 Q1. Start molding specimens for strength tests within 30 minutes after fabricating the composite sample. A. True B. False - CORRECT ANSWER-B. False ASTM C172 -Para (4.1.2) - Start molding. specimens for strength tests within 15 min after fabricating the composite sample. Q2. The maximum allowable time between obtaining the first and last portions of the composite samp...

ACI Certification Exam Questions With Correct Answers Latest Updated 2024/2025 | Scored A+. When the concrete contains large aggregate, the testing technician should wet-sieve the sample before making unit weight tests for use in yield computations.Answer - False 4. T/F: Samples smaller than 28L (1 .) are allowed on routine air content, temperature, and slump tests.Answer - True 7. How do you regulate the rate of discharge of the batch from the revolving truck drum mixer or agitator?Answe...

ACI Test Questions and Answers Guaranteed A+ The total time allowed between obtaining the first and final portions of a composite sample is 15 minutes When it is necessary to wet sieve the concrete sample, wet sieving should be performed after the individual samples are remixed into a composite sample (T or F) F Tests for slump, temperature, and air content must begin within ______ minutes after obtaining the composite sample 5 minutes Begin molding test specimens within...

The total time allowed between obtaining the first and final portions of a composite sample is - 15 minutes When it is necessary to wet sieve the concrete sample, wet sieving should be performed after the individual samples are remixed into a composite sample (T or F) - F Tests for slump, temperature, and air content must begin within ______ minutes after obtaining the composite sample - 5 minutes Begin molding test specimens within ______ minutes after obtaining the composite sample - ...

ACI Concrete Field Testing Technician Questions and Correct Answers, With Complete Verified Solution 2024/2025. The sensor of the temperature measuring device shall be submerged a minimum of _____ in. [_____mm] into the freshly mixed concrete. 3 in. [75 mm] The temperature measuring device shall have a capacity of measuring temperature of freshly mixed concrete to +- _____ degrees F [+- _____ C] throughout a range of _____. 1 degree F [0.5 C], 30 degrees F to 120 F [0 C to 50 C] The tempe...

The end of the temperature sensing portion of the temperature measuring device is submerged a minimum of ___________ into FRESHLY mixed concrete. ☑: 75 mm (3 in) The temperature measuring device shall be capable of accurately measuring the temperature of freshly mixed concrete to _______________ throughout a range of ____________ C to _____________ C and _____________ F to ___________ F. ☑: 0.5 C (1 F), 0-50 C (30-120 F) The temperature measuring device shall be verified ____________...