APPENDIX — ST-45HRM CE CONCRETE PUMPCONCRETE MIX

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

 

 

 

 

 

Sacks per cu./meter.

 

8.5 designed for 1,134 kg. in 28 days

 

 

 

 

 

Liters/Gallons per sack

 

26.9/7.1

 

 

 

 

 

 

 

 

 

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

3.81 cm =1.5 in.

2.54 cm = 1.0 in.

1.90 cm = 0.75 in.

 

.952 cm = 0.375

 

 

 

DESIGN FOR ONEYARD OF CONCRETE (SATURATED & SURFACE DRY):

 

 

 

 

 

Absolute volume of aggregate in one cu. yard:

503 liters (17.78 cu. ft.)

 

 

 

 

 

Specific gravity of aggregates in one cu. yard:

2.58

 

 

 

 

 

 

 

Weight of aggregates in one cu. yard batch: 1,293 kg. (2,850 lbs.)

 

%

BATCH

SPEC.GRAVITY

ABS.VOL.

W.C. Sand

65

1800

2.58

327 liters (11.56 cu. ft)

PEA GRAVEL

35

1000

2.60

176 liters (6.22 cu ft.)

WATER 174 liters/46 gal.

 

1

 

 

CEMENT 6.5 Sack/cu yd

 

611

 

 

CEMENT 8.5 Sack/cu meter

 

611

 

 

TOTAL

 

 

 

27.00

ADMIXTURE:

 

None

 

 

SLUMP

 

10.2 cm (4-inches)

 

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 64 — MAYCO ST-45HRM CE PUMP — OPERATION & PARTS MANUAL — REV. #0 (02/23/04)

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Image 64
Multiquip manual Appendix ST-45HRM CE Concrete Pumpconcrete MIX
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ST-45HRM CE specifications

The Multiquip ST-45HRM CE is a robust and versatile machine designed for a variety of heavy-duty applications, particularly in construction and industrial settings. Known for its durability and efficiency, the ST-45HRM CE stands out due to its combination of advanced technology, user-friendly features, and powerful performance, making it an ideal choice for professionals seeking reliable equipment.

One of the main features of the ST-45HRM CE is its powerful engine. It is equipped with a high-performance diesel engine that provides exceptional reliability and fuel efficiency. This engine allows the machine to achieve high-performance levels while minimizing operational costs, making it a cost-effective solution for various jobs. Additionally, the engine meets stringent environmental regulations, ensuring compliance with the latest emission standards.

The ST-45HRM CE is designed with operator comfort and safety in mind. One of its key characteristics is the spacious and ergonomically designed operator platform that allows for easy access and enhanced visibility. The controls are intuitively placed, providing excellent maneuverability and reducing operator fatigue during long working hours. Moreover, safety features such as emergency shut-off switches and protective enclosures are built into the design, ensuring a safer working environment.

In terms of technology, the ST-45HRM CE is equipped with advanced hydraulic systems that enhance its lifting capabilities. This machine is capable of lifting loads up to 45 tons, making it suitable for heavy materials and equipment. The hydraulic system is designed for smooth operation, allowing for precise control and optimal performance in various applications, including lifting, transportation, and heavy-duty towing.

Maintenance is another consideration where the ST-45HRM CE excels. It features easy access points for routine checks and repairs, reducing downtime and operational costs associated with maintenance. The components are engineered for longevity, ensuring that the machine can withstand the rigors of continuous use in demanding environments.

Overall, the Multiquip ST-45HRM CE is a standout in its category, boasting an exceptional blend of power, efficiency, and user-centric design. With its advanced features, safety technologies, and ease of maintenance, it is ideal for professionals in construction, industrial lifting, and other heavy-duty applications, providing a reliable solution to meet their needs.
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