Concrete

The AZA1148 Concrete Test Hammer (N-Type) is a precision-engineered non-destructive testing device designed to estimate the compressive strength of hardened concrete. Operating on the rebound principle, this instrument delivers fast, reliable field measurements without damaging the structure, making it indispensable for quality control, inspection, and structural assessment.With an impact energy of 2.207 Nm, the AZA1148 is suitable for general-purpose testing of standard-density concrete elements with expected compressive strength values ranging between 10 MPa and 70 MPa. It is widely used in construction sites, material testing laboratories, bridges, tunnels, precast yards, and industrial structures.

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How It Works

The hammer uses a spring-loaded mass that impacts the concrete surface. The rebound distance of the mass (displayed as an R-value) correlates to the concrete’s surface hardness and indirectly indicates compressive strength. Results can be interpreted using standard conversion charts or custom calibration curves based on local materials.

The Azalab Concrete Pad Caps & Retainer Rings Set is engineered to deliver precise, repeatable compressive strength testing for concrete cylinders, fully compliant with ASTM C1231 and AASHTO T22 standards. Designed as a superior alternative to sulfur capping, this system ensures safe, clean, and efficient unbonded capping using neoprene pad inserts.

High-Precision Retainer Rings

Manufactured from plated high-alloy steel, the retainer rings are corrosion-resistant and capable of handling repeated load cycles without deformation. Each ring is precision-machined to a tolerance of ≤ 0.002", ensuring flat, uniform bearing surfaces for consistent load transfer during testing.

Neoprene Pad Inserts

Durable neoprene pads fit securely within the retainer rings and adapt to minor surface irregularities at the ends of concrete cylinders. The elastomeric material provides uniform stress distribution and high repeatability across all tests. Pads are available in multiple durometers (50, 60, 70) depending on the compressive strength range.

Universal Compatibility

The pad cap system is suitable for standard concrete cylinder sizes used in laboratories and field QA/QC testing, including 4" × 8" and 6" × 12" specimens. Rings are reusable, and pads are replaceable, providing long-term operational efficiency.

Ideal For

• Concrete testing laboratories
• Field quality control/quality assurance
• Precast and ready-mix production plants
• Research and education institutions

The AZA-LAB Cube & Cylinder Lifting Handle (Model AZA1158) is a robust, safety-focused tool engineered for the reliable handling of concrete cube and cylindrical specimens in material testing laboratories. Built from high-strength, powder-coated steel, this lifting handle ensures durability, corrosion resistance, and consistent performance in demanding environments, including wet curing areas and abrasive field conditions.

Designed to securely grip 100 mm and 150 mm standard concrete cube moulds and cylindrical specimens, the AZA1158 facilitates safe lifting, transfer, and positioning without direct hand contact. The adjustable locking mechanism and anti-slip jaw design provide a firm hold on the specimen, preventing slippage and minimizing the risk of surface damage.

The ergonomic handle design distributes weight evenly, reducing hand fatigue and improving workflow efficiency. Whether used for loading specimens into curing tanks, transferring them to compression testing machines, or transporting them for inspection, this tool enhances operational safety and aligns with laboratory best practices.

The AZA1122 Cube Mould is a precision-engineered, heavy-duty metal mould designed for casting 150 mm × 150 mm × 150 mm concrete specimens for compressive strength testing. Built for durability and dimensional stability, this mould is ideal for material testing laboratories, construction quality control units, R&D facilities, and civil engineering institutions. Manufactured in compliance with IS 10086 and BS 1881-108, the AZA1122 ensures uniform cube geometry, accurate volume, and repeatable test outcomes—critical for determining the compressive strength and performance characteristics of cement and concrete mixes.

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Purpose & Function

This mould supports the preparation of standardized cube specimens that are used in:

• Compressive strength testing
• Batch-wise quality control in construction
• Concrete mix design validation
• Research on material performance and durability

Accurate mould geometry ensures uniform load distribution during testing, leading to reliable and compliant strength results.

The AZA1160 Concrete Cylinder Carrier from AZA-LAB is a precision-engineered handling tool designed for laboratories, construction sites, and field testing environments that routinely work with concrete cylinder specimens. Built for the safe and ergonomic transport of 150 mm × 300 mm concrete cylinders, this carrier ensures sample integrity throughout the curing and testing process.

Concrete cylinder specimens are fundamental in assessing compressive strength as per civil and structural engineering standards. Weighing over 15 kg when cured, these specimens are prone to chipping, cracking, or impact damage when manually handled. The AZA1160 provides a secure, stable, and balanced solution that safeguards the sample while offering ease of movement for technicians.

Manufactured using industrial-grade, powder-coated steel, the carrier delivers long-term durability, corrosion resistance, and dependable performance in wet, dusty, or chemically exposed environments. Despite its rugged construction, the frame remains lightweight, allowing repeated lifting without user fatigue.

The carrier’s custom-curved gripping arms conform to the geometry of standard cylinders, preventing rolling or lateral movement during transport. Its ergonomically placed handles ensure balanced weight distribution, enabling a single operator to carry heavy cylinders safely and comfortably. The open-frame design holds the specimen firmly while keeping both ends accessible for inspection or curing.

Engineered to support testing protocols aligned with ASTM C39 and IS 516, the AZA1160 ensures safe handling practices that contribute to accurate compressive strength testing.

The AZA1123 Cylindrical Mould is a precision-engineered, heavy-duty mould designed for casting standardized cylindrical concrete specimens used for compressive strength, split tensile strength, and durability testing. It is an essential tool for construction material testing labs, civil engineering institutions, and quality control facilities that routinely evaluate concrete performance. Built for repeatable use and dimensional stability, the AZA1123 ensures uniform specimen geometry in accordance with IS, ASTM, and ACI guidelines, making it a dependable choice for compliance testing and research applications.

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Purpose & Function

The cylindrical mould is used to prepare concrete specimens of standard dimensions, typically:

• 150 mm diameter × 300 mm height
• 100 mm diameter × 200 mm height

These specimens are used to perform:

• Compressive strength tests
• Split tensile strength tests
• Elastic modulus evaluations
• Durability and material behavior studies

Accurate geometry ensures that the applied load is uniformly transferred, resulting in consistent and valid test outcomes.