APPENDIX — CONCRETE MIX INFORMATION

The following information has been extracted from actual testing laboratory reports. The purpose of this printing is only to help create a better understanding of the importance of uniform gradation and proportioning of materials which affect pumpability of concrete mixes.These weights and proportions illustrate that when the sieve analysis is ideal, the sand/rock ratio can be adjusted (65% sand 35% rock) and pumpability should be excellent.

EXAMPLE #1 (A California Test Lab. Report)

JOB: Building Foundations (Water Project)

Sacks per cu./yd.

6.5 designed for 2,500 lbs. in 28 days

Gallons per sack

7.1

Washed Sand-#200 wash

1.3

Organic matter-OK

 

Specific gravity (SSD)

Sand-2.58; Pea Gravel-2.60

Sieve analysis-percent passing

 

 

 

 

 

 

 

 

 

 

Material

1.5”

1”

3/4”

3/8”

#4

#8

#16

#30

#50

#100

#200

W.C. Sand

 

 

 

100

99.7

79.1

60.4

36.5

14.3

4.0

1.1

Pea Gravel

 

 

 

100

3.0

 

 

 

 

 

 

% Comb.

 

 

 

100

66

51

39

23

9

3

1.0

DESIGN FOR ONE YARD OF CONCRETE (SATURATED & SURFACE DRY):

Absolute volume of aggregate in one cu. yard:

17.78 cu. ft.

Specific gravity of aggregates in one cu. yard:

2.58

Weight of aggregates in one cu. yard batch:

2850 lbs.

 

%

BATCH

SPEC. GRAVITY

ABS. VOL.

W.C. Sand

65

1800

2.58

11.56

PEA GRAVEL

35

1000

2.60

6.22

WATER 46 gal.

 

1

 

 

CEMENT 6.5 sk.

 

611

 

 

TOTAL

 

 

 

27.00

ADMIXTURE:

 

None

 

 

SLUMP

 

4”

 

 

REMARKS

 

This mix designed for pumping

 

NOTE:

 

Due to the availability of well-graded sand as shown in the above sieve analysis,

 

 

this mix pumped very successfully.

 

PAGE 78 — MAYCO LS600 PUMP — OPERATION AND PARTS MANUAL — REV. #4 (9/15/11)

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Multiquip LS600 manual Appendix Concrete MIX Information
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LS600 specifications

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