Page 40 - Masonry and Concrete

Concrete Construction Techniques
39
CONCRETE CONSTRUCTION TECHNIQUES

SQUARE FEET
300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10
0 0
10
20
1
30
40
50
2
60
70
80 4" THICK 3
90
100
110 5" THICK 4
120 6" THICK 5
130
CUBIC FEET 140 7" THICK 6 CUBIC YARDS
150
160
170
180 8" THICK
9" THICK
190 7
200
210 8
220 10" THICK
230
240
9
250
12" THICK
260
270 10
280
290
11
300
FIND THE AREA IN SQUARE FEET ALONG THE TOP OF THE GRAPH. FOLLOW THE VERTICAL LINE
DOWN UNTIL IT INTERSECTS THE DIAGONAL LINE FOR THE APPROPRIATE THICKNESS. READ
HORIZONTALLY TO THE LEFT TO FIND THE VOLUME IN CUBIC FEET. READ HORIZONTALLY TO THE
RIGHT TO FIND THE VOLUME IN CUBIC YARDS (27 CU.FT. = 1 CU.YD.).
FIGURE 3-1

Calculating concrete quantity.

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