Core TradesCâu 5 / 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
Giải thích
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.
Trích dẫn luật: 2025 CA Building Code (CBC) Chapter 19 (Concrete)Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- An accelerating admixture such as a non-chloride accelerator is added to a concrete mix PRIMARILY to:
- During hot-weather placement with a long haul time, a set-retarding admixture is used mainly to:
- The PRIMARY purpose of an isolation (expansion) joint around a column or against an existing wall in a slab-on-grade is to:
- Which curing method retains moisture in fresh concrete by forming a sealing film on the surface after finishing?
- A No. 5 reinforcing bar has a nominal diameter of 5/8 inch. If the specified tension lap splice is 40 bar diameters, what is the MINIMUM lap length?
- For a typical residential interior slab-on-ground, what is a common MINIMUM slab thickness?
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