Nicet Level 2: Concrete Structure Construction and Drainage Questions and Answers (Best Reated)

What size lifts should be placed for bedding? 6" lifts When should backfill not be placed next to a structure? When structure hasn't achieved 80% of it structural strength Where does the elevation start on a footing? At the bottom Each layer should be compacted to achieve what maximum density percentage? 95% What should be done to prep bedrock prior to placing footing? Grout should be placed to fill any voids in bedrock. Master01 | September, 2024/2025 | Latest update 1 | P a g e | © copyright 2024/2025 | Grade A+ How far away should stockpiled material be away from an open excavated hole? within 24" What equipment is used to drive piles? 1. Gravity Hammers 2. Open-end and closed end - diesel hammers 3. Air and steam hammers 4. hydraulic Hammers What is the wave equation for driving piles? between 2 and 10 blows per inch When pre-boring when should you stop? within 5 feet of estimated pile tip When do you check pile alignment? before the last 5' of the pile is driven Master01 | September, 2024/2025 | Latest update 1 | P a g e | © copyright 2024/2025 | Grade A+ The axial alignment should be within how many inches of the longitudinal axis, when driving piles? within 1/4" per foot What timber piles should not be used? When checks cracks are wider than 1/2" How many splices per pile is allowed? 2 spices What length of splice is not allowed? less than 10' What length is allowed for non spliced piles? 60' When should precast piles be rejec