Concrete

AZA1108 ISAT Apparatus is a precision-engineered testing instrument designed to measure the Initial Surface Absorption of hardened concrete. This test is essential for evaluating the durability of concrete by determining how quickly water penetrates the surface under controlled conditions. The apparatus is widely used in civil engineering laboratories and quality control departments to assess permeability and long-term performance of concrete structures exposed to moisture.

Built with a high-accuracy capillary tube system, the AZA1108 maintains a constant water head over a defined test area and records the volume of water absorbed over specific time intervals — typically at 10, 30, and 60 minutes. The readings obtained help engineers understand the surface porosity of concrete, which is a critical indicator of resistance against weathering, chloride ingress, corrosion of reinforcement, and environmental deterioration.

Designed in compliance with BS 1881-208, this apparatus ensures reliable, repeatable, and standard-compliant results. Its sturdy, rust-proof construction and easy-to-use configuration make it ideal for both routine testing and advanced durability studies in construction material laboratories.

AZA1109 J-Ring – Narrow Gap is a precision testing apparatus designed to evaluate the passing ability of Self-Compacting Concrete (SCC) under highly restrictive conditions. This device simulates densely congested reinforcement zones by creating artificial obstructions that the fresh SCC must flow through without blocking or segregating. It is an essential tool for determining whether SCC mixes are suitable for heavily reinforced structural elements such as beams, columns, and shear walls.

The narrow gap design offers a more stringent test compared to standard J-Rings, allowing engineers and quality control professionals to accurately observe flow diameter, T50 flow time, and blocking behavior. When used in combination with a standard slump flow cone, AZA1109 provides reliable, repeatable results that help optimize mix designs and ensure consistent on-site performance.

Manufactured from durable, corrosion-resistant steel, the AZA1109 is built for repeated use in laboratory and field testing environments. The apparatus is fully compliant with ASTM C1621 and EFNARC guidelines, ensuring internationally accepted testing procedures.

AZA1112 L Shape Box Apparatus is a precision testing device designed to evaluate the passing ability and flow performance of Self-Compacting Concrete (SCC) in congested reinforcement conditions. This apparatus simulates real-world scenarios such as densely reinforced beams, columns, tunnels, and bridge segments, where concrete must flow freely without segregation or blockage.

The distinctive L-shaped design creates a controlled flow path where freshly mixed SCC moves from a vertical chamber into a horizontal channel containing reinforcement bars. By measuring the concrete heights at both ends (H1 and H2), the H2/H1 ratio is calculated, providing a direct, quantitative assessment of the concrete’s ability to pass through obstructions.

Manufactured from durable, corrosion-resistant steel, AZA1112 is built for long-term laboratory and site use. It conforms to EN 12350-10 and EFNARC guidelines, ensuring global acceptance of test results.

The AZA1118 Labomix Concrete Pan Mixer is designed for demanding, high-volume mixing operations in construction laboratories, R&D facilities, and material testing centers. Built for durability and precision, it delivers consistent blends of concrete, mortar, grout, and aggregate mixes while supporting rigorous IS/ASTM test procedures.

Engineered with a high-efficiency gear-driven transmission, it provides stable torque, low maintenance requirements, and excellent mixing uniformity. The unit is available in multiple capacities from 90 litres to 300 litres, enabling users to select suitable volume for their operational needs.

The mixer features exchangeable mixing shovels, a safe-locking automatic discharge system, and large mobility wheels that allow a single operator to handle batching, mixing, and discharging efficiently.

The AZA 1171 Lateral Extensometer is a precision mechanical instrument designed for accurate measurement of lateral (transverse) strain in concrete and other rigid materials during compressive testing. It is an essential accessory for civil engineering laboratories, research institutions, and quality control facilities engaged in the evaluation of concrete mechanical properties.

Specifically engineered for 150 mm diameter × 300 mm height concrete cylinders, the AZA 1171 enables precise monitoring of diameter expansion while the specimen is subjected to compressive loads. This lateral deformation data is critical for determining Poisson’s Ratio, modulus of elasticity, and understanding material failure behavior under stress.

Unlike axial extensometers, which measure vertical shortening, the AZA 1171 captures transverse expansion with high resolution. The device clamps externally onto the specimen without causing damage, ensuring non-destructive testing and repeatable measurements.

The AZA 1172 Longitudinal Compressometer is a precision mechanical instrument designed for measuring axial (longitudinal) deformation of concrete cylinders subjected to compressive loading. Manufactured in full compliance with ASTM C469, it is an essential tool for determining the modulus of elasticity and supporting calculations of Poisson’s ratio in hardened concrete.

This instrument is widely used in construction material testing laboratories, civil engineering research facilities, academic institutions, and quality control departments, where accurate stress–strain characterization of concrete is required.

Purpose & Function

During compression testing, concrete undergoes axial shortening. Accurate measurement of this deformation is critical for plotting the stress–strain curve and calculating elastic properties. The AZA 1172 compressometer measures these minute changes in length with high precision, ensuring reliable and repeatable results.

When used alongside a compression testing machine—and optionally with a lateral extensometer—the AZA 1172 enables full elastic behavior analysis in accordance with ASTM C469 procedures.