APPENDIX — ST-45HRM CE CONCRETE PUMP SLUMP TEST

1.To obtain a representative sample (concrete), take several samples at three or more regular intervals throughout the discharge of the mixer or truck. DONOTtake samples at the beginning or end of the discharge.

2.Dampen the inside of the cone and place it on a smooth, moist, nonabsorbent, level surface large enough to accom- modate both the slumped concrete and the slump cone. Stand on the “foot pieces” throughout the test procedure to hold the cone firmly in place.

3.Fillthecone1/3fullbyvolume (Figure60-A)androd25times with a 1.3 cm x 61 cm (1/2” diameter x 24” length) bullet- pointed steel rod. (This is a specific requirement which will produce non-standard results unless followed exactly.) Dis- tribute rodding evenly over the entire cross section of the sample.

4.Fillconeanother1/3 (Figure60-B)whichwillmakethecone 2/3fullbyvolume.Rodthissecondlayer25timeswiththerod penetrating into, but not through, the first layer. Distribute rodding evenly over the entire cross section of the layer.

5.Fill cone to overflowing (Figure 60-C). Rod this layer 25 times with rod penetrating into but not through, the second layer.Distribute rodding evenly over the entire cross section of this layer.

6.Removetheexcessconcrete(Figure60-D)fromthetopofthe cone, using the tamping rod as a screed.

7.Lifttheconevertically(Figure60-E)withaslowevenmotion. DO NOT jar the concrete or tilt the cone during this process. ( Invert the withdrawn cone, and place it next to, but not touching the slumped concrete.

8.Lay a straight edge (Figure 60-F) across the top of the slumped cone. Measure the amount of slump in inches from the bottom of the straight edge to the top of the slumped concrete at a point over the original center of the base .The slump operation must be complete in a maxi

BULLET POINTED

STEEL ROD

1/3 FULL

1/2 DIAMETER

24 INCHES LONGFOOT PIECE

Figure 60-A. Slump Test (1/3 Full)

Figure 60-B. Slump

Test (2/3 Full)

2/3 FULL

Figure 60-C. SlumpTest

(Full-Overflow)

FULL (OVERFLOW)

Figure 60-D. Slump Test

(Removing Excess Concrete)

Figure 60-E. Slump Test

(Cone Invert)

Figure 60-F. Slump Test

(Measurement)

PAGE 66 — MAYCO ST-45HRM CE PUMP — OPERATION & PARTS MANUAL — REV. #0 (02/23/04)

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Multiquip manual Appendix ST-45HRM CE Concrete Pump Slump Test, Slump Test 1/3 Full

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.

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