Core TradesQuestion 126 of 700
The primary purpose of providing an adequate lap length where two reinforcing bars overlap is to:
a.Reduce the amount of concrete required
b.Increase the slump of the surrounding concrete
c.Allow the forms to be stripped sooner
d.Transfer tensile stress continuously between the bars
Explanation
A lap splice lets the bond between steel and concrete transfer tensile force from one bar into the next so the reinforcement acts continuously. An inadequate lap creates a weak point where the steel cannot develop its strength. Lapping has nothing to do with concrete quantity, slump, or form-stripping time.
Practice all 700 questions free — no signup required.
Related questions on this topic
- A rectangular slab measures 30 ft by 40 ft and is 4 inches thick. How many cubic yards of concrete are needed (before any waste allowance)?
- Assuming proper placement and curing, which change to a concrete mix will produce the GREATEST increase in compressive strength?
- For a one-story wood-frame dwelling on stable soil with no deeper frost-line requirement, what is the MINIMUM depth below the undisturbed ground surface to the bottom of an exterior footing?
- A continuous footing is 12 inches wide, 12 inches deep, and 60 feet long. How many cubic yards of concrete are required (before waste)?
- A slump test on fresh concrete is performed primarily to measure the concrete's:
- Standard-cured concrete test cylinders are most commonly broken to verify that the specified compressive strength (f'c) has been reached at what age?
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against California CSLB General Building (B) Trade Examination · How we review