LABORATORY CONCRETE MIXER (MOTORISED) AZA1116

AZA1105 Chase Air Indicator is a compact, lightweight, and highly practical field instrument designed to measure the air content in freshly mixed concrete. It is widely used in construction sites where rapid quality decisions are required and laboratory testing equipment is not readily available.

This device serves as a reliable field alternative to standard air content methods such as ASTM C231 (Pressure Method) and ASTM C173 (Volumetric Method). While it is not intended to replace laboratory-grade instruments, it provides fast, useful guidance that helps engineers and site supervisors maintain proper concrete mix quality.

Air entrainment plays a critical role in concrete durability, especially in regions exposed to freeze–thaw cycles, and contributes significantly to workability and pumpability of concrete. AZA1105 helps ensure that air content remains within the recommended range (typically 4%–7%), reducing the risk of weak or brittle concrete.

The working principle is based on fluid displacement and vacuum pressure balance. A representative mortar sample is collected and placed inside the testing chamber, where a controlled vacuum is applied. The internal pressure difference is translated directly to a calibrated dial gauge showing the approximate air content percentage.

With no electrical components, moving mechanical assemblies, or complex maintenance requirements, the AZA1105 is extremely reliable and built for tough field conditions. Its rugged body and easy-to-read dial make it suitable for continuous daily use in real-world jobsite environments.

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.

---

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.

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.