Core TradesQuestion 5 of 700
A construction joint in a concrete structure is BEST described as:
a.A saw-cut groove that controls where random shrinkage cracks form
b.A gap filled with compressible material to allow thermal movement
c.A planned interface where one concrete placement stops and the next begins
d.A gap left around plumbing penetrations through a slab
Explanation
A construction joint is the deliberate stopping point between separate concrete pours, often keyed or doweled to transfer load. A control joint is the saw-cut groove, an expansion/isolation joint uses compressible filler, and neither describes a penetration gap.
Law Reference: 2025 CA Building Code (CBC) Chapter 19 (Concrete)Practice all 700 questions free — no signup required.
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