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Tensile Strength Conversion Sheet for Slab on Grade Fiber Dosage Calculations
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www.theengineeringcommunity.org
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Instructions:
Select the desired Units of Measurement from the "pull-down" menu.
input required data
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Fill in the required information in the "yellow" shaded blocks.
constants - change only if necessary
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calculated data
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Note: This spreadsheet is only valid for WWM and steel designs where the thickness of the slab will support the loading conditions and the steel is located in the top half of the slab only.
final dosage requirements
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Units of Measurement
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Required Information:
Project Description:
slab on grade construction
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Reinforcing Details:
W2.9 WWM on 4" slab mid depth
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bar diameter12,0000mm*
* - for information related to wire and bar sizings, please refer to chart on Tab 2 (tab below)
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bar spacing200,0mm
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Slab Thickness, t400,0mm
Minimum requirements:
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concrete compressive strength, f'c40MPa
PCA (note: other documents may provide different minimums)
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typical steel strength, fy420MPa
Minimum % of reinforcing steel for shrinkage reinforcing
0,100%
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Q. is the steel ratio provided greater than the minimum?
yes
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Unit width of measure, b1000mm
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Area of steel provided, As565,486mm2/m
Estimated concrete flexural strength (change if necessary)
4,7MPa
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Steel reinforcing ratio, r0,141%
Spread Tensile Strength provided by steel reinforcing, fwwm
0,5MPa
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Re3 value required to match spread tensile strength
16,3%
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Required Volume of TUF-STRAND SF to match:
1,8kg/m3**** - Conversion of fiber dosage from required performance established from ASTM C 1018 testing
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Estimated cost of TUF-STRAND SF solution
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Cost Estimator:Area of slab465m2 $ 2,88 / m2
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Price of TUF-STRAND SF (installed)*
$ 4,00 /kgcompare this price to the fully installed WWM or steel option
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NOTICE: Be sure that all manual entries are in the correct units and values as this will have a significant impact on the final dosage and cost.
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The value of the TUF-STRAND SF dosage may be adjusted if necessary (depending upon the mixing, safety and performance requirements).
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This spreadsheet is only valid to calculated dosage rates up to 11.5 lbs/yd.
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NOTE: The solutions provided are to be treated as a recommendation only.
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- For more information, please contact The Euclid Chemical Company at 1-800-321-7628.
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Notations:
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f'c
compressive strength of concrete, psi (Mpa)
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fy
yield strength of reinforcing steel, psi (Mpa)
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As
Area of steel per unit area* - Usually expressed per ft length if b is set to 12 in, in2/ft (mm2/m)
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t
height (thickness) of cross section, in (mm)
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b
unit width of cross section* - Usually set to 12 in if steel is expressed in in2/ft (1000 mm)
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fwwm
Spread tensile strength provided by steel reinforcing, psi (Mpa)
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Re3
Post-crack performance as percentage of flexural strength for fiber reinforced concrete
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ASTM C 1018 - Flexural Toughness of Fiber Reinforced Concrete (using beam under third point loading)
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