It is generally understood that clays and other compressible soils can be subject to long-term consolidation under the loads imposed by foundations and above ground structures. Also that settlement may occur even if the applied pressure is wihtin the safe bearing capacity of the soil.

Table Top Consolidation Apparatus

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• Loading Pressures on 2.5” (63 mm) diameter samples of up to 48 tons per sq. ft. (5,148 kPa) using 11:1 beam ratio.
• Triple beam ratios of 9:1, 10:1 and 11:1 minimize loading weight requirements.
• Rigid frame construction ensures accuracy, repeatability and reliability of test results.
• Integral beam support jack eliminates possible shock to sample during load application procedures.
• Compact, table top design for maximum space savings in the laboratory.
• Cast aluminum and plated steel construction for rust resistance and long life.

Consolidation tests are performed in the laboratory to determine the settlement characteristics of soil over a period of time. The data obtained from tests on a small sample in the laboratory can be used to predict the settlement of a foundation under a building, dam, bridge, or similar structure.

The Table Top Consolidation Apparatus is a compact machine designed to provide reliable, accurate and reproducible results. The apparatus features a rigid loading mechanism, capable of applying loads for long durations. Load pressures of up to 48 tons per sq. ft. (5,148 kPa) can be generated on 2.5” (63 mm) diameter samples.

Required for test: consolidometer, dial indicator and loading weights; shown but not included, order separately. Optional floor mounting stand shown but not included, order separately.

Model No. Desc
25-0503 Consolidation cell 75 mm
88-4210 Electronic Digital Indicator, 0.600″/15 mm range
88-4220 Electronic Digital Indicator, 1.0″/25.4 mm range
25-0429 Floor mounting stand
25-0479 Consolidation cell 2.5"
25-0544 16 Ton Weight Set
25-0455 Consolidation cell 50 mm
25-0402 Consolidation frame
25-0535 Weight Set A
88-4070 Mechanical Dial Indicator - 0.4″ Range
88-4080 Mechanical Dial Indicator - 10 mm Range
88-4120 Mechanical Dial Indicator - 1.0″ Range Counter Clockwise Movement
88-4130 Mechanical Dial Indicator - 25 mm Range Counter Clockwise Movement
25-0480 2.416″ Fixed Ring Consolidometer
25-0530 2.5″ Floating Ring Consolidometer
25-0537 Weight Set B

DataSystem Consolidation Test Set

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The DataSystem Consolidation Test Set is designed for performing consolidation tests on soils to ASTM and AASTHO standards including options for automated data logging, analysis, and reporting.

Computer hardware and peripherals required for system operation; not included. Contact factory for system requirements.

See Data Aquisition section for specifications of electronic displacement and logging equipmnent.

Model No. Desc
2230/01 DataSystem Consolidation Test Set 220 vAC
2230/02 DataSystem Consolidation Test Set 110 vAC

Pneumatic Consolidation Apparatus

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• Instantaneous loading without impact.
• Complete flexibility in choice of loads.
• Relatively insensitive to shock or inertia forces.
• Compact size allows for table top operation without the need for extraneous hanging weight assemblies.

Used worldwide for stress controlled consolidation testing, the Pneumatic Consolidation Apparatus is a pneumatic load frame designed to apply loads instantaneously and to maintain any set load, regardless of sample compression occurring within the loading interval. The unit is self contained with a built-in digital display with 0.25% accuracy.

Available in three load ranges, the load frame uses a dualpiston system for handling loads to 32 tsf while retaining sensitivity in the lower load ranges. A precision, low-bleed type of pressure regulator is used to set and maintain the load on the specimen.

Adjustable centering pads on the load platform aid in aligning the consolidometer and will accept any consolidometer up to a maximum diameter of 7.25” (184 mm). The top loading design eliminates time consuming weight calculations.

Required for test: Consolidometer and dial indicator; shown but not included, order separately.

Model No. Desc
25-0503 Consolidation cell 75 mm
25-0560 Pneumatic Consolidation Apparatus
88-4210 Electronic Digital Indicator, 0.600″/15 mm range
88-4220 Electronic Digital Indicator, 1.0″/25.4 mm range
25-0479 Consolidation cell 2.5"
25-0455 Consolidation cell 50 mm
88-4070 Mechanical Dial Indicator - 0.4″ Range
88-4080 Mechanical Dial Indicator - 10 mm Range
88-4120 Mechanical Dial Indicator - 1.0″ Range Counter Clockwise Movement
88-4130 Mechanical Dial Indicator - 25 mm Range Counter Clockwise Movement
25-0480 2.416″ Fixed Ring Consolidometer
25-0530 2.5″ Floating Ring Consolidometer

Fixed Ring Consolidation

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• Specimen cutting ring for trimming directly from sample tubes.
• Integral water reservoir for specimen inundation, when required.

All Fixed Ring Consolidometers are manufactured from corrosion resistant materials and incorporate an integral cutting ring for trimming specimens to size. The design also features an integral water reservoir for specimen inundation.

All consolidometers are supplied complete with upper and lower porous stones, pressure pad and specimen cutting ring.

Model No. Desc
25-0503 Consolidation cell 75 mm
25-0503/13 Upper and lower porous stones
25-0506 Cutting ring
25-0479 Consolidation cell 2.5"
25-0455/13 Upper and lower porous stones
25-0455 Consolidation cell 50 mm
25-0461 Calibration disc
25-0480 2.416″ Fixed Ring Consolidometer
25-0509 Calibration disc
25-0485 Calibration disc
25-0480/13 Upper and Lower Porous Stones, 2.416″
25-0479/13 Upper and lower porous stones
25-0458 Cutting ring
25-0482 Cutting Ring

Floating Ring Consolidometer

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• Floating type design eliminates friction between soil specimen and ring.
• Rust-resistant construction for long service life.

The Floating Ring Consolidometer is designed to eliminate the friction that occurs between the soil specimen and ring in consolidation testing. The unit consists of a one-piece machined base, porous stones, and specimen ring. All metal parts are brass or phosphor bronze. The base is approximately 5” (127 mm) diameter by 3” (76 mm) high.

Model No. Desc
25-0530 2.5″ Floating Ring Consolidometer
25-0530/10 Porous Stone 2-15/32″ dia.
25-0533 Specimen Ring 2.5″

Expansion Index Test Apparatus

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The Expansion Index Test Apparatus is a completely self-contained apparatus designed for use in determining the expansion index of soils. Using the new consolidation apparatus, contractors and laboratory technicians can conduct an expansion test on a cured soil specimen in 24 hours or less.

Model No. Desc
25-0380 Expansion Index Test Apparatus

Soil Volume Change Meter

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• Measures both shrinkage and swelling of soils.
• Ideal for measuring swelling of clay soils.
• Fast and easy to operate.

The Soil Volume Change Meter (PVC) is used to evaluate potentially dangerous swelling or shrinking conditions existing in some clay soils used in residential and commercial developments.

The device was originally developed by the Federal Housing Administration after considerable research to provide satisfactory background laboratory testing data, a summarization of mechanisms causing volume change in soils and the factors influencing these changes. PVC refers to the maximum possible volume change that a soil could undergo when subjected to changing moisture conditions.

Model No. Desc
9417-0001 Porous Stone 2.74″ x 0.4″
9417-0006 Porous Stone 3.0″ x 5″
25-0390 Soil Volume Change Meter

• Measures both shrinkage and swelling of soils.
• Ideal for measuring swelling of clay soils.
• Fast and easy to operate.

The Soil Volume Change Meter (PVC) is used to evaluate potentially dangerous swelling or shrinking conditions existing in some clay soils used in residential and commercial developments.

The device was originally developed by the Federal Housing Administration after considerable research to provide satisfactory background laboratory testing data, a summarization of mechanisms causing volume change in soils and the factors influencing these changes. PVC refers to the maximum possible volume change that a soil could undergo when subjected to changing moisture conditions.