What is the standard compaction requirement for structural fill under building foundations in Florida?
Correct Answer
C) 95% of Modified Proctor density
Florida Building Code typically requires structural fill to be compacted to 95% of Modified Proctor density. This ensures adequate support for foundations and prevents differential settlement.
Why This Is the Correct Answer
The Florida Building Code requires structural fill under building foundations to be compacted to 95% of Modified Proctor density to ensure adequate bearing capacity and prevent settlement issues. Modified Proctor testing provides a higher energy compaction standard than Standard Proctor, which is necessary for critical structural applications. The 95% threshold represents the industry standard that balances constructability with performance requirements for foundation support.
Why the Other Options Are Wrong
Option A: 95% of Standard Proctor density
90% of Standard Proctor density is insufficient for structural fill applications as it uses the lower energy Standard Proctor test and doesn't meet the minimum compaction requirements for foundation support in Florida.
Option D: 90% of Standard Proctor density
While 95% is the correct percentage, Standard Proctor density uses lower compaction energy than Modified Proctor and is not the standard specified for structural fill under foundations in Florida.
Memory Technique
Think '95 Modified' - 95% compaction using the Modified (higher energy) Proctor test for structural fill. Remember: Standard is for standard work, Modified is for structural work.
Reference Hint
Florida Building Code Chapter 18 (Soils and Foundations) or geotechnical sections dealing with earthwork and compaction requirements
More Project Mgmt Questions
What is the minimum R-value required for wall insulation in Florida Climate Zone 2?
A subcontractor brings a new chemical product to your jobsite. Under the Globally Harmonized System (GHS), what information must be immediately available to workers?
A construction site has a trench that is 8 feet deep in Type B soil. What is the maximum allowable slope ratio for the trench walls without protective systems?
What is the maximum recommended spacing between drywall screws when attaching to wood studs?
Your crew discovers suspected asbestos-containing materials during a renovation project. What is the first action you should take?
A scaffold platform is 12 feet long and 5 feet wide. If the maximum load capacity is 25 pounds per square foot, what is the total weight capacity of this platform?
Which CSI MasterFormat Division would contain specifications for fire-stopping and firesafing materials?
In tilt-up concrete construction, what is the primary advantage of this method over conventional cast-in-place construction?
Which OSHA standard specifically addresses construction industry safety and health regulations?
A structural drawing shows a beam labeled 'W12x26'. What does the '26' represent?
People Also Study
Business & Financial Management
120 questions · 70% to pass
Contract Administration
60 questions · 70% to pass