Masonry Magazine May 2004 Page. 32

Masonry Magazine May 2004 Page. 32

Masonry Magazine May 2004 Page. 32
Planks and WALKBOARDS
Similar safety rules apply for manufactured walkboards as well. Walkboards are typically made from aluminum with either a plywood top or aluminum top and measure 19 inches wide. Load-bearing capacities are normally stamped right on the walkboard and are usually either 50 pounds per square foot (psf) or 75 psf, depending on the length and width of the walkboard. Capacities for both plank and walkboards assume uniform loading to reach their rated capacities, not point loads. Point loads have the

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If a contractor suspects that a plank
has been overstressed and has any doubts about its condition, it should be rejected.
entire load centered in one spot instead of a uniform distribution of the weight along the entire length and width of the plank or walkboard. Other walkboards can be constructed of steel, or steel and expanded metal. Use of these materials will allow contractors to attain higher load capacities than are normally attainable with either wood or manufactured plank.

Selecting Scaffold Plank
WHEN BUYING or renting scaffold frames and planking, contractors need to consider their needs carefully and be prepared to answer three important questions:
* What materials will be used on the job?
* How will those materials be stocked and stored?
* How many workers will be working from a scaffold plank at one time?

Masonry work generally is considered light-duty (25 psf) or medium-duty (50 psf) loading, but this doesn't always hold true. A scaffold plank that must hold palletized

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Masonry Magazine December 2012 Page. 45
December 2012

WORLD OF CONCRETE

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Masonry Magazine December 2012 Page. 46
December 2012

Index to Advertisers

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REECHCRAFT
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Masonry Magazine December 2012 Page. 47
December 2012

AMERIMIX
MORTARS GROUTS STUCCOS

Why Amerimix Preblended Products?

576

The choice is CLEAR:

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Labor reduction

Enhanced productivity

ASTM - pretested to ASTM specifications

Masonry Magazine December 2012 Page. 48
December 2012

MASON MIX
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