Module Eleven - Concrete Work - NCCER Substation Slides

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Concrete Work
Module Eleven – 82204-12

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Objectives
Upon completion of this module, you will be able to do the following:
1. Describe the properties of concrete.
2. Identify different types of forms.
3. Explain how to install and tie rebar.
4. Describe how to set anchor bolts to proper location and elevation.
5. Describe how to estimate concrete volume.
6. Identify methods used in placing and finishing concrete.
7. Construct a pier form and place anchor bolts.

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Performance Tasks
Under the supervision of the instructor, you should be able to do the
following:
1. Construct a pier form and place anchor bolts.

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Figure 1 — Portland cement manufacturing process

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Figure 2 — Portland cement stored outdoors

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Figure 3 — Typical control point concrete monument (benchmark)

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Figure 4 — Typical secondary control point marker (TBM)

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Figure 5 — Typical working control point marker

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Figure 6 — Typical builder’s level

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Figure 7 — Typical laser beam level and detector

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Figure 8 — Tripod

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Figure 9 — Leveling rods

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Figure 10 — Reading a leveling rod

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Figure 11 — Rod accessories

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Figure 12 — Measuring horizontal distances

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Figure 13 — Measuring horizontal distance across a slope

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Figure 14 — Line level

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Figure 15 — Using a leveling rod

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Figure 16 — Using a leveling rod to calculate elevations

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Figure 17 — Laser transmitter and receiver rod

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Figure 18 — One-person operation

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Figure 19 — Rotating lasers sweep multiple sensors

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Figure 20 — Piers

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Figure 21 — Establishing a wall line on a footing

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Figure 22 — Parts of a continuous, or pier, footing form

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Figure 23 — Parts of a stepped pier footing form

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Figure 24 — Establishing the slab and equipment locations on site

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Figure 25 — Establishing building/equipment lines

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Figure 26 — Transferring a building corner to batter board layout lines

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Figure 27 — Locating footing corner stakes

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Figure 28 — Footing form for below grade use

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Figure 29 — Dowel templates

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Figure 30 — Types of slabs

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Figure 31 — Parts of an edge form for a slab without a wall

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Figure 32 — Parts of an edge form for a slab with a wall

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Figure 33 — Combination metal and wood edge form

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Figure 34 — Bulkhead

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Figure 35 — Screed guides

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Table 1 — Metric and US Customary Reinforcing Bar Specifications

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Figure 36 — Reinforcement bar identification

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Table 2 — Reinforcement Bar Steel Types

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Table 3 — Reinforcement Bar Grades

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Figure 37A — Typical bar bends

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Figure 37B — Typical bar bends

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Figure 38 — Standard hook details for reinforcing bars

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Table 4 — Standard Hook Specifications

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Figure 39 — Sample bar list

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Table 5 — Maximum Prefabricated Radii

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Figure 40 — Additional sample bar list

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Figure 41 — Examples of rebar labels

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Figure 42 — Typical wire bar supports

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Figure 43 — Standee support

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Figure 44 — Miscellaneous accessories

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Figure 45 — Typical rolled, plain-wire, welded-wire fabric

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Table 6 — Plain Wire Sizes (ASTM A82)

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Table 7 — Common Styles of Plain Welded-Wire Fabric

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Table 8 — Deformed Wire Sizes

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Figure 46 — Partial wall, footing, and floor slab plan

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Figure 47 — Portion of a typical concrete table

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Figure 48 — Typical circular column plan

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Figure 49 — Website concrete volume calculator

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Figure 50 — Typical handheld electronic concrete calculator

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Feature — Slide Rule Concrete Calculator

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Figure 51 — Front-discharge truck mixer

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Figure 52 — Volumetric mixer truck

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Figure 53 — Typical wheelbarrow, cart, and power buggy

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Figure 54 — Placing concrete

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Figure 55 — Vibrating concrete

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Table 9 — Typical Slump Ranges

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Figure 56 — Slump test cone

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Figure 57 — Measuring slump

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Figure 58 — Preparing compression test samples

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Figure 59 — Typical manual screeds (straightedge)

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Figure 60 — Small gasoline-driven power screed

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Figure 61 — Darby floats

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Figure 62 — Bullfloat

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Figure 63 — Using a bullfloat

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Figure 64 — Edger in use

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Figure 65 — Edgers

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Figure 66 — Jointers (groovers)

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Figure 67 — Wet and dry cut floor-type concrete saw

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Figure 68 — Soft-cut concrete saw

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Figure 69 — Hand floats

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Figure 70 — Powered finishing machine

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Figure 71 — Using a single-rotary finishing machine

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Figure 72 — Hand trowels

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Figure 73 — Using hand trowels

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Figure 74 — Brooming a concrete surface

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Supplemental Art

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Course Map

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Appendix B, Part 1

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Appendix B, Part 2

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Appendix B

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Appendix C

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Appendix C

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Appendix C

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Appendix C