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Geotechnical Sampling and Testing

Geotechnical Sampling and Testing

Conduct geotechnical investigations of soil and rock around a site – including surface and subsurface exploration.
AMS offers portable, in situ, methods for evaluating the strength and density of soil; evaluating the consistency, compaction, and bearing of soils; and taking direct readings of shear strength.


For additional information on AMS geotechnical sampling and testing equipment see the AMS Catalog.

  • Pocket Penetrometer
    Pocket Penetrometer
    The AMS pocket penetrometer provides accurate measurements of the compressive soil strength. This 6-1/4in unit is spring-operated, and it is measures strength in tons/sq. ft. or kg/sq. cm by pushing a 1/4in diameter loading piston into soil to a depth of 0.25in. The end area is 0.05in2. Compressive load is indicated by reading a scale on the piston barrel. A friction ring indicates maximum reading. Made of anodized aluminum. An Allen wrench and plastic carrying case with belt loop are included. A special 1in-diameter adapter foot is available as an option for use in very sensitive soils.   A pocket penetrometer is required by OSHA on all excavation jobs, and it can help protect you from costly lawsuits and construction delays.
  • Pocket Vane Shear Test Kit
    Pocket Vane Shear Test Kit
    Easy to use with easy-to-read results:   Regular vane (0 to 1 kg/cm²) : For saturated cohesive soils with undrained strength , independent of normal pressure Large vane (0.2 kg/cm²): use with remolded samples. Small vane (2.5 kg/cm²): for stiffer clays.   Comes with:   Three Vanes Allen Wrench Carrying Belt Pouch   Advantages: All Metal Construction. Quick and efficient method for determining shear strength values of cohesive soils. Metal Vanes are designed to last Long. TORVANE permits the rapid determination of a large number of strength values with different orientation of failure planes. Calibrated dial converts torque directly into shear stress in kg/cm². The maximum reading obtained on the dial is the shear strength. The TORVANE allows shear strength to be measured in the sides of test pits, trenches or excavations. It may also be used on the ends of thin wall or split spoon samples and soil chunks removed from test pits. Shipping Weight: 1 lb (0.5kg); 0.2 cu. ft.
  • Geo Tester Penetrometer
    Geo Tester Penetrometer
    Geotester dial penetrometer set is used for on-site measurement of soil compaction by testing the foundation plane or boring samples. It gives readings of estimated unconfined compressive strength in TSF or kg/cm2 when used with the standard 1/4" dia plunger. The geotester is furnished with stainless steel plungers, carrying case, data tables, register plates and instructions.   Comes with :   Stainless Steel Plungers Plastic Carrying Case Data tables Register Plates
  • Borehole Preparation Kit
    Borehole Preparation Kit
    Improve effectiveness of geotechnical testing and sampling with a pre-bored hole.   Includes: 5/8" threaded, 2 1/4" regular auger and 2 1/4" 5/8" planer auger, one 4' 5/8" extension, one 3' 5/8" extension, rubber-coated cross handle, black poly-canvas bag.   Please make sure any accessories you intend to use with your AMS Sampling Kits use the same connection type that are used in the kit. See Connection Types for more information.
  • Dual Mass DCP
    Dual Mass DCP
    Developed by the Army Corps of Engineers, Dynamic Cone Penetrometers (DCPs) provide a low-cost, efficient test method for quickly determining in-situ CBR values of pavement base, subbase and subgrades. They can readily be used for depths up to 30" and up to 6' with optional drive rods and extensions. This model complies with ASTM D6951 specifications and comes with a chart to compute CBR values, as well as an Excel spreadsheet template, which automatically charts the test results. DCPs cover a CBR range from
  • Static Cone Penetrometer
    Static Cone Penetrometer
    Evaluate the consistency, compaction and bearing of fine grained, soft soils. The static cone penetrometer is used to evaluate the consistency of soils, their level of compaction and the bearing capacity of shallow foundations and pavement subgrades. Specifically developed for use in fine grained soils, particularly soft soils, to depths of 30'. They use a 60 degree vertex angled cone with an area of 1.5 cm squared. An optional cone with a 3 cm squared area is available for use in very soft soils.   Dual rod construction isolates cone resistance from shaft friction Pressure gauge ranging from 0 to 70 kg/cm squared reads cone resistance directly, eliminating need for proving ring conversions Comes standard with a starter rod assembly designed to withstand an axial force of 250 lbf (340 N*m) maximum Pressure gauge is marked in kg/cm squared   Includes: 60 degree cone with a maximum area of 1.5 cm squared, starter rod assembly, pressure gauge, operating instructions/parts list.   Material: stainless steel and anodized aluminum
  • Dynamic Cone Penetrometer
    Dynamic Cone Penetrometer
    The most widely accepted, portable method for evaluating strength and density of soil, in situ. The dynamic cone penetrometer uses a 15 lb. (6.8 kg) drive mass falling 20 in. (50.8 cm) that strikes the anvil to cause penetration of 1.5 in (3.8 cm) diameter cone (45 degree vertex angle) that has been seated in the bottom of a pre-augered hole. The blows required to drive the embedded cone a depth of 1 3/4" have been correlated by others to N values derived from the Standard Penetration Test (SPT). Experience has shown effectiveness in pre-augered holes to depths of 15' - 20' (4.6 to 6.1 cm). The cone can be replaced with a plated drive tube assemble for collection of 3" x 10" (7.6 x 25.4 cm) samples in preaugured holes.   Includes: DCP sleeved drive hammer, 45 degree vertex angle cone with a 3.8 cm diameter cone, extensions, laminated instruction sheet, ASTM STP 399 Special Publication.   Material: heat-treated cone, zinc-plated components  
  • Field Vane Shear Tester
    Field Vane Shear Tester
    Take direct readings of shear strength to depths up to 10 ft (3 meters) in soft to stiff clays. Three (3) vane sizes allow for the direct determination of un-drained shear strength of soft to stiff clays. The peak vane value is determined by a calibrated scale ring built into the head assembly. The cross handle is used both to push the vane to the desired test depth and apply the shearing torque. To correct for the skin friction of the extension rods, a dummy probe replaces the vane and a skin friction test is performed adjacent to the vane test location.   Includes: Torque head assembly, six (6) extensions rods, three (3) vane (0.63" x 1.25" 16 x 32 mm, 0.79" x 1.58" 20 x 40 mm, 1" x 2" 25.4 x 50.8 mm), skin friction probe, double-ended wrench, leather carrying pouch.   Material: stainless steel and anodized aluminum  
  • Eijkelkamp Penetrologger Kit
    Eijkelkamp Penetrologger Kit
    The penetrologger has been especially developed to measure the resistance to penetration of the soil and to save the measuring results to digitally process them on a computer. The penetrologger is ergonomically designed, and lightweight. It can be used to measure to a depth of 80 cm. The penetrologger can provide the Unified Soil Classification System (USCS), the Vehicle Cone Index (VCI), and Cone Index (CI) per measurement.   GPS – The penetrologger comprises an accurate internal GPS system to determine the exact measuring point. The coordinates saved in the penetrologger can be linked to a place or map using software (or less accurately via Internet).   Carrying Capacity – The penetrologger measures the resistance of the soil or the shallow subsurface and is a suitable instrument for use in civil engineering, soil science, agriculture, sports field maintenance and park and public garden management.   The kit includes the Eikelkamp penetrologger, cones, sounding rods, depth reference plate, battery charger, penetrologger cable, software Penetroviewer, tools and aluminum carrying case.
  • Eijkelkamp Soil Moisture Sensor Thetaprobe
    Eijkelkamp Soil Moisture Sensor Thetaprobe
    The Eijkelkamp soil moisture sensor can be connected to make a one point measurement and record the soil moisture percentage at the measureing point (applying the Frequency Domain technique).   The sensor has a measuring range of 5-55 percent and an accuracy of 5 percent. The soil moisture data are stored together with the coordinates and the measured resistance to penetration.   The sturdy, water-tight synthetic housing which contains the electronics is fitted with 4 stainless steel measuring probes at one end that can simply be pushed into the soil or other material.   Technical Specifications Measuring range: 5-55 percent Accuracy: 5 percent Resolution: 1 percent Output signal: 0-1 Vdc Measuring pens material: Stainless Steel Length Measuring Pens (4): 60mm Diameter Measuring Pens: 3.2 mm
  • Infiltration Rings
    Infiltration Rings
    AMS infiltration rings are a simple and relatively inexpensive method for monitoring infiltration rates. They can also be used to study liquid waste disposal, leaching and drainage efficiencies.   The rings are centered by the cross handle – which is welded in place at the top of the unit. The rings are inserted into the turf by pushing and twisting on this cross handle. An optional dead blow hammer may also be used to pound the rings into the turf. Unlike other infiltration rings on the market, the AMS infiltration rings are constructed of rolled 16 gauge mild steel with gold zinc plating – instead of being made of galvanized steel. They are also plated with corrosion resistant gold zinc plating. This substantially increases the durability of each unit.   A user manual and correlation chart is included with each unit.
  • Concrete Test Hammer Type N
    Concrete Test Hammer Type N
    Reliability and careful selection of components, the distinctive ergonomic and functional design, as well as the continuous scientific research in collaboration with the most important Universities in Italy, has brought to the development of this series of instruments of the latest generation. The N type sclerometer – Novatest design – has been modified to get a higher degree of reliability as far as correlation curves are concerned, obtaining the new SonReb method. To develop new curves, 50 cubic samples (200x200mm) of twenty distinct classes of concrete have been tested. The samples have been subjected to Non-Destructive Tests (hammer indexes and ultrasonic pulses propagation) and Destructive Tests (press-crashing). By analyzing the results of the tests, it has been assessed that the CONCRETON mechanical concrete test hammer is an invaluable tool to check and estimate the quality of concrete. Maximum reliability is achieved upon strictly following the manufacturer’s instructions.
  • Shaw Portable Core Drill
    Shaw Portable Core Drill
    The Shaw portable core drill is a nearly ideal tool for environmental and geotechnical field investigation because it can be used in otherwise difficult of access locations behind buildings, fences and walls, trees, escarpments and much else. The diamond core bits of the system are easily capable of advancing borings through a large array of subsurface materials including steel reinforced concrete, hard rock and some kinds of cemented gravels. Its loose materials bit can be used to make stable, open borings with the use of bentonite clay in flowing sand and very loose gravel, and in clay with the use of surfactants mixed in drilling fluid. Soil sampling of the highest quality can be done with the cartridge and breech type of Shaw soil sampler. Bayonet couplings make loading and unloading of the sampler very easy. Stainless steel components resist rust and are easily decontaminated for high-quality sampling. Shaw offers high quality capped clear plastic liners for preserving and core boxes for storage of soil or rock samples.
  • Pask Permeameter Kit
    Pask Permeameter Kit
    The field saturated hydraulic conductivity (Kfs) or permeability of natural soil and built up beds of fill can be quickly and easily measured in place using the ETC Pask Constant Head Permeameter Kit manufactured by Dynamic Monitors, a business unit of Engineering Technologies Canada Ltd. (ETC).