Calculated Industries Construction Master ConcreteCalc Pro 4225 User manual

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ConcreteCalc™ Pro
Designed for today’s concrete professional,
the ConcreteCalc Pro adds even more
power to the already powerful Construction
Master line of construction-math
calculators. This calculator is so simple to
use, even the novice user can easily solve
dimension-related problems.
• Solve Dimensional Math with Ease
• Dimensional Conversions
• U.S./Metric Conversions
• Weight/Volume Conversions
• Rectangular Area/Volume Calculations
• Block Quantity Solutions
• Footing Volume Calculations
• Instant Square-Up (Diagonal) Solutions
• Drop Distance Calculations
• Circular Area and Circumference
• Arc Length Calculations
• Calculate Stair Risers, Treads, Stringers
and Inclination Angle
• Material Estimations
• Paperless Tape
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TABLE OF CONTENTS
GETTING STARTED .................................1
Key Denitions .......................................1
Preference Settings .............................10
Entering Dimensions............................12
Conversions .........................................12
Basic Math Operations ........................14
Percentage Calculations......................15
Memory Operation...............................16
Paperless Tape ....................................17
USING THE CONCRETECALC PRO .....18
Length, Width, and Height Keys ..........18
Circle Calculations ...............................20
Squaring-Up a Concrete Slab .............23
Calculating Rebar ................................24
Calculating Loads ................................26
Blocks and Bricks.................................26
Polygon (Equal-Sided).........................27
Concrete Footing .................................28
Finding Weight Per Volume .................29
Concrete Bags .....................................29
Calculating Drop ..................................30
Stair Calculations.................................32
APPENDIX...............................................35
Accuracy/Errors ...................................35
Battery and Auto Shut-O󰀨 ...................36
Default Settings....................................36
Area Formulas .....................................38
Surface Area and Volume Formulas ...39
REPAIR AND RETURN...........................40
Warranty, Repair and
Return Information ...............................40
WARRANTY............................................41
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GETTING STARTED
KEY DEFINITIONS
Basic Function Keys
+ - x z = Arithmetic operation
keys.
%Percent Key – Used to
nd a given percentage of
a number.
0 - 9 and . Keys used for entering
numbers.
OTurns all power
o󰀨, clearing all non-
permanent registers.
oOn/Clear Key – Turns
on power. Pressing
once clears the display.
Pressing twice clears all
temporary values.
c Convert Key – Used
with the dimensional
keys to convert between
dimensions or with other
keys to access special
functions.
; Store Key – Used for
storing values.
s  Recalls
stored values.
Unit Keys
y Yards Key –Enters or
converts to Yards.
f Feet Key –Enters or
converts to Feet as whole
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or decimal numbers.
Also used with the i
and /keys for entering
Feet-Inch values (e.g.,
6 f 9 i 1 /
2). Repeated presses
during conversions toggle
between Fractional and
Decimal Feet.
i Inch Key –Enters or
converts to Inches. Entry
can be whole or decimal
numbers.Also used with
the /key for entering
fractional Inch values
(e.g., 9 i 1 /
2). Repeated presses
during conversions toggle
between Fractional and
Decimal Inches.
/ Fraction Bar Key –
Used to enter Fractions.
Fractions can be entered
as proper (1/2, 1/8,
1/16) or improper (3/2,
9/8). If the denominator
(bottom) is not entered,
the calculator’s fractional
accuracy setting is
automatically used.
m Meters Key –Enters or
converts to Meters.
c 7 Centimeters –Enters or
converts to Centimeters.
(Cont’d)
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c 9 Millimeters –Enters or
converts to Millimeters.
c 2 Acres –Enters or
converts to Acres.
Length, Width and Height Keys
l Enters Length for
calculation of Area or
Volume.
] Enters Width and
calculates Area, Square-
up and perimeter.
h Enters Height and
calculates Volume, wall
Area and total room
Area. This is a permanent
entry; stored value holds
when turned o󰀨.
Arc, Circle Keys
k Arc — Calculates arc
Length or degree, chord
Length, segment Area,
pie slice Area and
segment rise.
e Circle — Enters diameter
and calculates circle Area
and circumference.
c k — Enters or
calculates circle radius.
c ] Chord — Enters or
calculates the chord
Length of a circle segment.
c h — Enters
or calculates the rise of a
circle segment.
(Cont’d)
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Construction Project Keys
r — Given
stored or entered rebar
inset, rebar size, rebar
on-center spacing and
entered Length and Width
values, calculates the
following:
Press Result
1 Total Feet
2 Total Weight
3 Rebar Size
4 Rebar On-Center
5 Rebar Inset
6 Stored Length
7 Stored Width
If you already know your total linear Feet of rebar, you
can enter the Length to calculate the total Weight based
on the Weight per Foot of the stored rebar size (e.g. 1 0
0 f r r).
c r Inset — Stores rebar
inset. Default is 3 inches.
Rebar inset is the spacing
between the rebar and
the perimeter of the forms
or foundation.
' —
Stores rebar size. Rebar
size can be entered as
a number for rebar sizes
3-11, 14, and 18 (e.g.,
5 r for number 5
rebar), or as a decimal
or fractional value not
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exceeding 6 inches in
diameter (e.g., 5 / 8
r for 5/8 inch bar
size). Default is
number 5 (5/8″).
c Spacing — Stores
rebar on-center spacing.
Default is 18″.
p Loads Key — Calculates
number of loads for a given
Volume or Length, Width,
and Height (Depth) values
and stored load size.
; p — Stores load
size. Load size must be
entered as a cubic value
(e.g., 8 y y y
; p). The default
size is 8 cubic yards.
c 5 Bags — Calculates
number of concrete bags
for a given Volume and
stored bag size.
; 5 — Stores bag
size (Volume per bag of
concrete). Bag size must
be entered as a cubic
value (e.g., . 6 7
f f f ; 5).
Default is 0.666667 cubic
feet per bag, based on a
standard 80 pound bag.
b Blocks/Bricks —
Calculates the number of
concrete blocks required
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to ll a given Area. This
key can also be used for
calculating the number of
“face” or “paver” bricks by
storing a brick size (see
Block Size).
; b — Stores the
block size. Block size must
be entered as a linear
value or a square value.
The default is 128 square
inches block Area and 16
inches block Length.
Note: For bricks, you may also enter a brick size using
; b. For example, when building with standard
“face” bricks, store a brick size of 21 square inches (e.g.,
2 1 i i ; b) or store 32 square Inches
(e.g., 3 2 i i ; b) for “paver” bricks. This
is based on Modular U.S. brick size of 3-5/8 inches x
2-1/4 inches x 7-5/8 inches, including 3/8 inch mortar = 4
inches x 2-5/8 inches x 8 inches.
u —
Calculates the “Square-
Up” (diagonal) Length
given entered Length and
Width values.
d Drop Key — Calculates
total drop (or fall) over
an entered Length given,
entered percentage
drop, inch per foot drop,
or degrees of drop.
Continued presses
will act as a “constant
add” for displaying
successive drops.
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c 8 Board Feet — Enters or
converts cubic values to
board feet.
c e —
Calculates the Volume
and surface Area of a
column and/or cone.
gFooting — Finds quantity
of concrete, based on
entered wall Length and
stored footing Area.
; g Footing Area — Stores
footing Area. Footing
Area must be entered as
a square value (e.g., 2
6 4 i i ;
g).The default footing
is 264 square inches.
c l Polygon — Calculates
full angle, bi-sect angle,
side Length, perimeter
and Area based on
entered radius and
number of sides.
Stair Layout Key
t Given Height and/or Length
and stored variables,
calculates or displays:
Press Result
1 Riser Height (R-HT)
2 Number of Risers
(RSRS)
3 Riser Overage/
Underage (R+/-)
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