PROCTOR NEEDLES (SPRING TYPE) AZA0868

The AZA0866 Heavy Compaction Test Set from Azalab is designed for determining the Maximum Dry Density (MDD) and Optimum Moisture Content (OMC) of soils using the Heavy Compaction (Modified Proctor) Method, in accordance with IS 2720 (Part VIII). This test is fundamental in geotechnical engineering, road and highway construction, foundation design, embankment works, and earthworks where soils are subjected to high compactive effort. The heavy compaction test realistically simulates field compaction achieved by modern construction equipment, enabling reliable prediction of soil behavior under service loads. This configuration is supplied with a 150 mm diameter mould (2250 cc volume), making it particularly suitable for coarse-grained and granular soils. Scope of Use The AZA0866 Heavy Compaction Test Set is used to establish the relationship between moisture content and dry density of soil under heavy compaction energy. The resulting compaction curve is used to determine MDD and OMC, which are essential parameters for compaction control and quality assurance in field construction.

The AZA0853 Liquid Limit Device with Counter from AZALAB is a precision-engineered instrument used for determining the liquid limit of soils in accordance with the Casagrande method. This test is a fundamental component of soil classification and geotechnical investigation, providing critical insight into the plasticity, compressibility, and shear strength of fine-grained soils.

Designed for reliable, repeatable, and standardized testing, the AZA0853 is widely used in geotechnical laboratories, civil engineering departments, construction quality control labs, and academic institutions.

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Principle of Liquid Limit Test (Casagrande Method)

The liquid limit is defined as the water content at which soil transitions from a plastic state to a liquid state. In practice, it is determined as the moisture content at which a standard groove cut in the soil sample closes over a length of 12.5 mm under 25 blows of the liquid limit apparatus.

The AZA0853 consists of a polished brass cup mounted on an adjustable bracket. The cup is repeatedly raised and dropped from a fixed height of 1 cm onto a hard rubber base by means of a manually operated cam mechanism. A built-in mechanical counter accurately records the number of blows, ensuring compliance with testing standards and reducing operator error.

The AZA0876 Falling Head Permeability Apparatus from Azalab is a precision-engineered laboratory instrument designed for the determination of permeability (hydraulic conductivity) of fine-grained soils, such as silts and clays. It is specifically intended for the falling head test method, which is the most suitable and widely accepted technique for soils with low permeability.

Accurate assessment of soil permeability is critical in geotechnical engineering applications including foundation design, earth dams, embankments, drainage systems, seepage analysis, and groundwater flow studies. The AZA0876 provides reliable, repeatable, and standard-compliant results for professional laboratories.

AZA0858 – Reliable Soil Hydrometer for Fine Particle Analysis The AZA0858 Soil Hydrometer from AZA Lab is a precision glass instrument designed for grain size analysis of fine-grained soils using the sedimentation (hydrometer) method. It is specifically intended for soils in which more than 10% of the material passes through the 75-micron sieve, ensuring accurate assessment of clay and silt fractions in accordance with internationally recognized standards. Manufactured from high-clarity transparent borosilicate glass, the AZA0858 features a permanently engraved density scale for direct, reliable readings of suspension density over time. The instrument is factory calibrated and optimized for use at 27°C, delivering high precision in both laboratory and controlled field testing environments.