Concr - Study guides, Class notes & Summaries

Concrete Flatwork Tech and Flatwork Finisher (3rd Ed.) 100% Pass (Ch. 1, #1) It is important that the _______ _______ read and understand project specifications finishing foreman (Ch. 1, #2) If the crew can place and finish 100yd^3 (m^3) of concrete per hour, the producer's rate should be about ____ yd^3(m^3) per hour. 100 (Ch 1, #3) True or False: Concrete is sold by the ton. False (sold by volume) (Ch. 1, #4) Delays in discharging concrete trucks can result in the concrete bein...

2024 ACI Concrete Field Testing Technician- Grade I exam questions and answers The sensor of the temperature measuring device shall be submerged a minimum of in. [ mm] into the freshly mixed concrete. - answer 3 in. [75 mm]

Q1. Start molding specimens for strength tests within 30 minutes after fabricating the composite sample. A. True B. False - 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 sample may not exceed 5 minutes. A. True B. False - Answer-B. False ASTM C172 - Para (4.1)- The elapsed time shall not exceed 15 mi...

CSLB Concrete C8 License Practice Test #2 QUESTIONS & ANSWERS 2024 ( A+ GRADED 100% VERIFIED)

ACI Concrete Field Testing Technician- Grade I Exam 2023/2024 Questions and with Correct Answers. The sensor of the temperature measuring device shall be submerged a minimum of _____ in. [_____mm] into the freshly mixed concrete. - ANSWER 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 _____. - ANSWER 1 degree F [0.5 C], 30 degrees F to 120 F [0 C to 50 C] The te...

ACI- Concrete Field-Testing Technician - Grade 1 Questions with complete solutions

CSLB Concrete C8 License Practice Test #1 Questions With Complete Solutions

ACI Concrete Field Testing Technician - Grade 1 (18) 100% Accurate ACI Concrete Field Testing Technician - Grade 1 (18) 100% Accurate ACI Concrete Field Testing Technician - Grade 1 (18) 100% Accurate ACI Concrete Field Testing Technician - Grade 1 (18) 100% Accurate ACI Concrete Field Testing Technician - Grade 1 (18) 100% Accurate ASTM C1064 - ANSWER Standard Test Method For Temperature of Freshly Mixed Hydraulic-Cement Concrete The end of the temperature sensing portion of the temperatur...

Concrete Timeline correct answers 1. *200BC-100AD*: Romans 2. *1824*: Portland Cement 3. *1850s*:Reinforcement 4. *1872*: Portland Cement comes to US 5. *1920s*: Pre-stressing Concrete Who invented concrete? correct answers The Romans The Romans correct answers • used longer spans in sitecast concrete • the Pantheon built by the Romans around 50AD had a concrete dome that spans 150 feet. • Longer spans in concrete are achieved by using very thin layers What is meant by "spa...

Concrete Tools Questions and Answers Rated A+ What is the primary function of a concrete mixer? The primary function of a concrete mixer is to combine cement, aggregate, water, and additives to create a uniform concrete mixture. What tool is used to level the surface of freshly poured concrete? A screed is used to level the surface of freshly poured concrete and ensure an even finish. What is the purpose of a trowel in concrete work? A trowel is used to smooth and finish the surf...