Department of Civil Engineering

Soil Mechanics Laboratory

•  | Post date: 2025/11/11 - 15:42 | 

Inventory: One unit
Condition: Functional
Country and Manufacturer: ELE – England
Model: EL23-4090
Manufacture Date: ----
In undisturbed sampling, the soil components remain intact and adjacent, preserving the natural texture and moisture of the sample. This equipment is used to extract soil specimens with a diameter of 38 mm and a length of 230 mm.

Standards: BS 1377-1

Inventory: One unit
Condition: Functional
Country and Manufacturer: MARUI – Japan
Model: MIS-217-1-01
Manufacture Date: June 1990

This device is used to extract compacted soil samples from a compaction mold and a core cutter with a diameter of 4 inches / 100 mm.

Standards: BS 1377-1

Inventory: One unit
Condition: Functional
Country and Manufacturer: MARUI – Japan
Model: MIS-217-1-02
Manufacture Date: June 1990

This device is used to extract compacted soil samples from a compaction mold and a CBR mold with a diameter of 6 inches / 150 mm.

Standards: BS 1377-1

Inventory: One unit
Condition: Functional
Country and Manufacturer: ELE – England
Model: EL23-5800
Manufacture Date: ----

This device is designed for trimming hardened soil samples to obtain the desired dimensions for preparing specimens with a diameter of 38 mm. It features adjustable height up to 100 mm.
Accessories include a coping saw and a knife.

Standards: AASHTO T89, ASTM D4318, ISIRI 10731

Inventory: One unit
Condition: Functional
Country of Manufacture: Iran
Manufacturer: Abzar Azmayesh Arvin
Model: ----
Manufacture Date: ----

Inventory: One unit
Condition: Functional
Country of Manufacture: Japan
Manufacturer: MARUI
Model: MIS-214-1-01
Manufacture Date: June 1990

The manual Casagrande device is used for the liquid limit test of soil to evaluate the relationship between the moisture content of a soil sample and the number of blows required to close the groove.
The objective of this test is to determine the critical (threshold) moisture content at which the soil transitions from a plastic to a liquid state.
Both devices are equipped with a grooving tool, a brass cup, and a standard Bakelite base. The Iranian model also includes a blow counter.

Standards: BS 1377-2, EN DD ENV 1997-2

Inventory: One unit
Condition: Functional
Country and Manufacturer: ELE – England
Model: EL24-0417/01
Manufacture Date: ----

The electric Casagrande device is used for the liquid limit test of soil to evaluate the relationship between the moisture content of a soil sample and the number of blows required to close the groove.
In the electric model, blows are applied by a motorized striker at a rate of 2 blows per second.
The device includes a grooving tool, a brass cup, a standard Bakelite base, and a blow counter.

Standards: ASTM D427, BS 1377:2

Inventory: One set
Condition: Functional (not in use due to outdated standards and mercury health hazards)
Country and Manufacturer: Iran – Azmoonsaz Mabna
Model: SO 490
Manufacture Date: ----

The purpose of this test is to determine the moisture content below which the soil no longer shrinks as moisture decreases.
Standard shrinkage limit equipment includes:
• One glass evaporating dish for shrinkage limit sample
• One Plexiglass plate with three pins for shrinkage limit
• Five stainless steel sample molds
• One glass container for mercury collection
• One spatula, 20 mm wide

Standards: ASTM D422, AASHTO T88

Inventory: One unit
Condition: Functional
Country and Manufacturer: MARUI – Japan
Model: MIS-211-0
Manufacture Date: June 1990

This device is used in soil hydrometer testing at a speed of 10,000 rpm for particle size analysis of fine-grained soils smaller than 75 µm.

Standards: ASTM D422

Inventory: One unit
Condition: Functional
Country and Manufacturer: MARUI – Japan
Model: MIS-212-1-02
Manufacture Date: June 1990
Capacity: 9 hydrometer cylinders
Dimensions: 915(l) × 160(w) × 360(h) mm

This device is used in soil hydrometer testing to maintain the temperature of test samples inside hydrometer cylinders at a constant level. It features a wooden body with a double-wall system.

Standards: AASHTO T176, ASTM D2419, ISIRI 1685

Inventory: One unit
Condition: Functional
Country and Manufacturer: ELE – England
Model: ----
Manufacture Date: ----

This device is used in the sand equivalent test to generate uniform oscillations.
The purpose of this test is to determine the ratio of sand volume to total soil volume, essentially assessing the cleanliness of the sand.
The device has a horizontal stroke of 20 cm and performs 90 back-and-forth movements in 60 seconds.

Standards: AASHTO T176, ASTM D2419, ISIRI 1685

Inventory: One unit
Condition: Functional
Country and Manufacturer: MARUI – Japan
Model: MIS-216-S
Manufacture Date: June 1990

This device is used in the sand equivalent test to generate uniform oscillations. The purpose of this test is to determine the ratio of sand volume to total soil volume, essentially assessing the cleanliness of the sand. The device has a horizontal stroke of 20 cm and performs 90 back-and-forth movements in 60 seconds.

Standards: ASTM D558, ASTM D559, ASTM D560, ASTM D698, ASTM D1557

Country and Manufacturer: MARUI – Japan

The purpose of this test is to determine the maximum dry density of soil and its corresponding optimum moisture content. It is conducted using two methods:

• Standard Method: Utilizes a 4-inch (10 cm diameter) compaction mold and a 2.5 kg hammer dropped from a height of 30 cm.
• Modified Method: Employs a 6-inch (15 cm diameter) compaction mold and a 4.5 kg hammer dropped from a height of 45 cm.

Standards: ASTM D558, ASTM D559, ASTM D560, ASTM D698, ASTM D1557

Inventory: One unit
Condition: Functional
Country and Manufacturer: ELE – England
Model: EL24-9095/01
Manufacture Date: 2001
Hammer Diameter: 2.0” (50.8 mm)
Hammer Weight: 5.5 lb (2.5 kg) – 10 lb (4.5 kg)
Drop Height: 12” (305 mm) – 18” (457 mm)
Device Dimensions: 250(w) × 430(d) × 1400(h) mm
Device Weight: 190 kg

The compaction hammer device is designed to facilitate soil compaction and is equipped with a digital pre-counter. By adjusting the hammer weight and drop height, the device can be configured for 4-inch and 6-inch molds or CBR test specimens.
The platform holding the mold rotates with each blow, ensuring that subsequent impacts strike the soil sample at optimal positions.
The device includes a safety guard for user protection and a soundproof cabinet.

Standards: AASHTO T193, ASTM D1883, BS 1377-4, ISIRI 1159

Inventory: One complete unit with all accessories
Condition: Functional
Country and Manufacturer: Iran – Azmoon Saz Mabna
Model: SO 639
Manufacture Date: ----

The fully automatic CBR device is equipped with a 30 kN load cell with 10 N accuracy and a displacement gauge for penetration measurement with a 50 mm stroke and 0.01 mm accuracy. Loading is performed by an electric motor-gearbox system. All stages of the CBR test are carried out automatically after placing the specimen in the CBR mold and pressing the Start button. The loading head then returns to its initial position. The failure force (in N) and penetration (in mm) values are displayed on the screen. Data can be saved in Excel format and the stress–penetration curve can be plotted by connecting to a computer.

Standards: AASHTO T216; ASTM D2435, D4546; BS 1377; EN DD ENV 1997-2

Inventory: One complete set
Condition: Functional
Country and Manufacturer: ELE – England
Model: EL25-0402
Manufacture Date: ----
Consolidation Specimen Diameter: 75 mm
Lever Ratios: 11:1, 10:1, 9:1
Load Capacity: 2000 kPa with a 9:1 lever ratio
Weight Set: 100 kg
Composition: 9×10 kg, 1×5 kg, 2×2 kg, 1×1 kg

The consolidation test is performed in the laboratory on undisturbed soil specimens to determine consolidation characteristics. The applied load is exerted using standard weights, and the specimen’s deformation is read using a dial gauge with 0.002 mm accuracy.

Standards: AASHTO T215; ASTM D2434; BS 1377; EN DD ENV 1997-2

Inventory: One complete set
Condition: Functional (the ELE variable head permeability apparatus includes only the mold and lacks the stand and manometer tubes)
Country and Manufacturer: ELE – England
Model: EL25-0585
Manufacture Date: ----

The constant head soil permeability apparatus is suitable for determining the permeability of coarse-grained soils. The constant head permeability mold is made of plexiglass and has a diameter of 114 mm.

Standards: ASTM D2434

Inventory: One complete set
Condition: Functional
Country and Manufacturer: MARUI – Japan
Model: MIS-228-1-01
Manufacture Date: June 1990

The constant head soil permeability apparatus is suitable for determining the permeability of coarse-grained soils.

Inventory: One complete set
Condition: Defective (the 20 mm manometer valve is broken, and the apparatus lacks smaller-diameter manometer tubes)
Country and Manufacturer: MARUI – Japan
Model: MIS-227-1-01
Manufacture Date: June 1990

The variable head soil permeability apparatus is suitable for determining the permeability of fine-grained soils. The 4-inch permeability mold is made of galvanized steel.

Standards: AASHTO T296, T297; ASTM D2850, D4767, D1883, D2166, D7181

Inventory: One complete set
Condition: Functional
Country and Manufacturer: ELE – England
Model: EL25-3516/01
Manufacture Date: 2001
Capacity: 50 kN (11,200 lbf)
Speed Range: 0.00001 ~ 9.99999 mm/min

This apparatus is designed for performing triaxial compression tests using three methods: Unconsolidated Undrained (UU), Consolidated Undrained (CU), and Consolidated Drained (CD). It is equipped to apply back pressure and cell (confining) pressure, and to measure pore water pressure and volume change. By conducting tests on three identical cylindrical soil specimens—either undisturbed or reconstituted—and plotting Mohr’s circles, shear strength parameters such as internal friction angle (ϕ) and cohesion (c) can be determined. Stress–strain diagrams also provide valuable insight into the mechanical behavior of the soil.

Standards: ASTM D3080, BS 1377

Inventory: One complete set
Condition: Functional
Country and Manufacturer: MARUI – Japan
Model: MIS-233-1-02
Manufacture Date: June 1990
Specimen Dimensions: 60 mm (ϕ) × 12 mm (t)
Maximum Shear Force: 100 kgf
Shear Rate: 0.3 ~ 2 mm/min
Weight Set: 6.4 kg
Composition: 2×0.4 kg, 1×0.8 kg, 1×1.6 kg, 1×3.2 kg

The direct shear apparatus is used to determine the shear strength parameters of soil. It is equipped with two dial gauges with 0.01 mm accuracy and travel ranges of 10 mm and 20 mm, as well as a force ring with a capacity of 980 N.

Standards: ASTM D1558, D2573

Inventory: One unit
Condition: Functional
Country of Manufacture: England
Manufacturer: ELE
Model: EL29-3739
Force Ring Capacity: 1 kN
Manufacture Date: ----

Standards: BS 1377, BS 1924

Standards: BS 1377