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Concrete Construction - Unit 3: Placing and Compaction

32 minutes 13 seconds

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Overhead view of poured concrete with a large pole in the middle of the pour. Caption. We should look in more detail at what is meant by compaction.

Examines the methods and practice of placing and compacting concrete (getting rid of trapped air using pokers and vibrators). Covers column, wall, and slab-casting operations. Details of the operations are highlighted, including placement in layers and treatment at joints.

Media Details

Runtime: 32 minutes 13 seconds

Topic: Business, Careers
Subtopic: Construction, Occupations
Grade/Interest Level: 10 - 12
Standards:

Release Year: 1997
Producer/Distributor: Nimco, Inc
Series: Concrete Construction
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Wide shot of a cement storage plant that has cement silos, tanks, conveyor belts, and a portable building. Caption. Let's look at cement storage.

Closeup of concrete being poured into a form with upside down u-shaped steel rods. Caption. The engineer will tell you what slump is right for your job.

Overhead view of poured concrete with a large pole in the middle of the pour. Caption. We should look in more detail at what is meant by compaction.

Closeup of connecting vertical and horizontal brown metal beams with 3 vertical steel rods extending through the beam connection. Caption. The formwork must provide this finish.

Closeup of a person standing and using a hand-guided circular power trowel on wet concrete. Caption. Are screeded, floated, and trowel finished.

Crane hoists precast concrete panel toward a series of vertical and horizontal steel rods. Vertical rod ends bent at 90 degrees face outward. Caption. And make sure that formwork can be lifted out.

View of steel framing on top of a concrete block structure with 2 openings. Text on image reads, "Safety signs." Caption. You'll become familiar with safety signs.

Digital map titled "Battle of Little Bighorn." A black horse runs west towards Little Bighorn River and the Bighorn Mountains. 3 blue labeled banners for Gibbon, Terry and Custer, and Crook surround the horse, each with an arrow pointing in.

Closeup of 2 side-by-side vertical steel rods and 1 horizontal steel rod touching. Heavy gauge metal wire is looped behind vertical rods and over horizontal rod held in place by someone's fingers. Another wire is under the horizontal rod. Caption. Hairpin tie.

Closeup of a gloved hand holding a concrete block as concrete coating is applied with a trowel. Caption. He doesn't want to leave any air pockets.