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Humboldt HM-2800 Multi-Speed Load Frame User Manual

Page 8

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Test

Description

Standar

ds

Speed in/min.

Tolerance

Comments

CBR,

1mm

BS

1377,

Clause

7.4.2.2

.039

(1mm/min.)

± 20% ie.

.2 mm/min.

UU T

riaxial

Unconsolidated

Undrained, 1.4"

ASTM D2850

Para.

5.1

&

7.5

AASHTO T208

1% min. plastic, .3% min. brittle

—5% constant rate,

strain contr

ol

Cohesive soils;

no ripples in a

glass of water

UU T

riaxial

Unconsolidated

Undrained, 1"

BS

1377,

Part

7

.3% min.

Unconfined

Cohesive Soil

ASTM D2166

Para.

7.1

1/2 to 2% min.

Strain Contr

olled

Clay or

Cemented Soils

UC Consolidated

Undrained, 1.4"

ASTM D4767

Para.

5.2

.028 or for

mula

in

Para.

8.4.2

±1%

Cohesive

Plastic

Soils

Marshall/TSR

ASTM

D6927

&

5581;

AASHTO T245

2"

±.15

or 7.5%

Mold Soil Cement

ASTM D1633

Appr

ox. .05

Continuous

w/o shock

CBR/LBR Hveem

&

Soil Cement

ASTM D1883, D4429 (field) AASHTO T193

Appr

ox. .05

no pulses

Continuous

run at idle

w/o shock

UU Unconsolidated

Undrained quick triaxial, 1.4"

ASTM D2850

.008

±5%

Brittle

material

UU Unconsolidated

Undrained quick triaxial, 2.8"

ASTM D2850

.017

±5%

Brittle

material

UC Unconsolidated

Undrained triaxial for

cohesive soil

ASTM D4767

Para.

5.2

.056 or for

mula

in

Para.

8.4.2

±1%

Cohesive soils

w/plasticity

Common Speeds for Specimen T

esting

7