Louisiana Contractor Permanent or Paved Highways and Streets (Concrete) Trade Examination Practice Test
Concrete highway and street paving requires control of fresh concrete from delivery through placement, finishing, and curing. This practice page focuses on field decisions for concrete pavement work, including mixture checks, form alignment, consolidation, surface texture, joints, and safe paving operations near traffic.
Exam overview
About the Louisiana Contractor Permanent or Paved Highways and Streets (Conc… Exam
Roadway concrete work depends on coordinating placement and finishing so adjacent pavement sections remain consistent and delays do not disrupt the pour. Relevant field skills include checking fresh-concrete temperature and air content when specified, consolidating concrete around embedded items and slab edges, and applying the required curing method to protect the new surface. Crews also need to recognize why smooth form joints matter for line and grade, how pavement texturing contributes to surface function, and how a planned construction joint accommodates a scheduled stop. Site decisions include managing wash water and leftover concrete responsibly and maintaining temporary traffic control while paving near moving vehicles. These topics connect material handling, workmanship, sequencing, and work-zone safety in permanent or paved highways and streets.
Sample Practice Questions
Review a selection from this exam's published US Practice Tests practice bank.
A project requires checking the temperature of fresh concrete at delivery. What is the main reason for taking this measurement?
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Correct answer: AFresh-concrete temperature can affect setting and placement behavior. Measuring it helps determine whether the load meets project or specification limits for placement conditions. Temperature alone does not establish mixture proportions, surface finish, or base depth.
What is the primary purpose of applying curing compound to newly finished concrete pavement when that curing method is specified?
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Correct answer: BA curing compound forms a film that limits moisture loss from the concrete. Retaining moisture supports cement hydration and helps the pavement develop its intended properties.
What is a sound general practice for managing concrete wash water and leftover concrete at a paving site?
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Correct answer: BConcrete wash water and leftover material can affect drainage systems and the environment. Containment and proper disposal help prevent pollution and comply with applicable site and regulatory requirements.
Why should concrete pavement be placed and finished in a sequence that avoids long delays between adjacent portions of a pour?
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Correct answer: AA prolonged interruption can allow previously placed concrete to stiffen before adjoining concrete is placed, creating an unintended discontinuity. Coordinated placement helps maintain a uniform, continuous slab, subject to planned construction joints where required.
Why is a concrete pavement mixture typically consolidated around embedded items and along slab edges during placement?
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Correct answer: BAppropriate consolidation helps remove entrapped air and fill areas around embedded items and edges, reducing the risk of honeycombing and weak or poorly formed regions. It should be performed without over-vibrating the mixture.
What is the purpose of checking the air content of air-entrained pavement concrete when required by the project specifications?
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Correct answer: BProperly entrained microscopic air voids can provide space for water to expand as it freezes, improving concrete durability under freeze-thaw exposure. The required range and test method are specified by the project.
When setting a concrete pavement form line, what is the practical purpose of checking that adjacent forms align smoothly at their joints?
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Correct answer: ASmooth alignment at form connections helps maintain the intended edge line and grade and avoids bumps or discontinuities that can complicate placement and finishing. Forms should also meet the project's other line, grade, and stability requirements.
How to use this practice test
The free practice bank contains 50 questions; each session presents up to 20 random questions. Answer a session to see your results, then use missed items to pinpoint concrete-paving concepts that need more attention, such as curing, consolidation, joint planning, or traffic control.
Preparation tips
- For fresh-concrete checks, distinguish what temperature and air-content measurements reveal and when project specifications call for them.
- Review placement and finishing sequences, especially how long delays between adjacent pours can affect continuity and how planned construction joints are handled.
- Compare consolidation, curing, and surface texturing by the specific pavement condition or performance each practice addresses.
- Practice spotting field controls in paving scenarios: aligned forms, managed wash water and leftover concrete, and temporary traffic control near active lanes.