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CHASE AIR INDICATOR AZA1105
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.
Description
Key Features
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Measures air content in freshly mixed concrete
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Lightweight and portable for field applications
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Simple manual operation using vacuum and fluid displacement
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No electricity or batteries required
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Easy-to-read calibrated dial indicator
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Rugged, chemical-resistant body
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Fast results within minutes
Applications
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Road and highway construction projects
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Ready-mix concrete quality checks
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Pavement and slab works
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Precast concrete yards
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Remote and rural construction sites
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On-site mix design verification
Operating Principle
The test is conducted by:
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Collecting the mortar portion of fresh concrete
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Placing the sample into the chamber
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Adding the testing fluid
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Creating a vacuum using the manual pump/valve
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Reading the air content directly from the dial
This process provides a quick estimate of the air percentage, enabling immediate jobsite adjustments.
Technical Specifications
| Feature | Specification |
|---|---|
| Model | AZA1105 |
| Measuring Range | 0% – 10% air content |
| Readout | Analog dial gauge (direct %) |
| Operation Type | Fully manual |
| Power Requirement | None |
| Materials Tested | Fresh concrete mortar |
| Body Material | Chemical-resistant plastic / corrosion-resistant alloy |
| Accessories | Sampling tube, fluid container, protective case |
| Portability | Handheld & lightweight |
FAQs
Q1: What does AZA1105 measure?
It measures the approximate air content in freshly mixed concrete.
Q2: Is it a replacement for ASTM C231?
No, it provides a reliable field estimate but does not replace pressure meters for official certifications.
Q3: Is calibration needed?
It is factory calibrated but can be checked periodically with control samples.
Q4: Is it suitable for coarse aggregates?
No, it is designed for the mortar (fine aggregate) portion only.
Q5: Who typically uses this device?
Contractors, site engineers, supervisors, QC teams, and field technicians.
Additional information
| Measuring Range |
0% to 10% air content |
|---|---|
| Readout |
Dial gauge (direct % air content) |
| Operation Type |
Manual (no battery or power required) |
| Compliance |
Field alternative to ASTM C173 |
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COMPACTION FACTOR APPARATUS AZA1107
- Precision measurement of compaction factor for dry and stiff concrete
- Double-hopper system with smooth trap release
- Conforms to IS 1199 and BS 1881 standards
- Suitable for precast plants, RMC units, and civil engineering labs
- Rugged, powder-coated mild-steel construction
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J-RING, NARROW GAP AZA1109
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.
K-SLUMP TESTER AZA1104
AZA1104 K-Slump Tester is a fast, reliable, and non-destructive testing device designed to measure the workability and consistency of fresh concrete directly at construction sites or in laboratory environments. It provides instant slump approximation without the need for traditional slump cones, base plates, or tamping rods, making it an essential tool for modern concrete quality control.
This handheld instrument is widely used by civil engineers, site technicians, and quality inspectors who require quick, repeatable, and real-time results during concrete batching, transportation, and placement. Its simple design eliminates complicated setup, reducing testing time and operator fatigue.
Manufactured from high-grade stainless steel, the probe is corrosion-resistant and suitable for harsh site conditions. The etched scale markings provide direct readings in millimeters or inches, allowing accurate penetration depth measurement without additional instruments.
Unlike traditional slump testing methods, the AZA1104 enables non-destructive testing, meaning the concrete surface remains intact and usable after testing. This feature is especially useful when multiple checks are needed during large pours or continuous batching operation
MORTAR PENETROMETER AZA1115
Key Features
- Complies with ASTM C403 Standard
- Used to determine mortar hardening rate
- Spring-loaded stem graduated 0–70 kg (1 kg divisions)
- Includes six interchangeable stainless steel needles
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- Shanks marked every 5 mm for depth guidance
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PLASTIC CYLINDERICAL MOULD AZA1127
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SLUMP TEST APPARATUS AZA1102
AZA1102 Slump Test Apparatus is designed for the accurate evaluation of concrete workability and consistency in both laboratory and field conditions. It is an essential quality control tool used in construction projects, civil engineering laboratories, and educational institutions.
This apparatus complies with IS 7320 and BS 1881-102 standards, ensuring reliable and standardized test results. It is primarily used to determine the slump value of fresh concrete, indicating its ease of placement, compaction, and finishing.
The set includes a durable metal slump cone manufactured to standard dimensions — 200 mm bottom diameter, 100 mm top diameter, and 300 mm height — providing dimensional accuracy and long service life. A 16 mm diameter tamping rod, 600 mm long with rounded ends, is provided to properly compact the concrete sample in layers.
The apparatus is suitable for testing concrete with aggregate sizes up to 38 mm, making it ideal for common residential, commercial, and infrastructure applications.
To improve handling and stability, the unit includes a rigid base plate with clamping arrangements and lifting handles, making it easy to use both on construction sites and in laboratories.
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TAMPING ROD AZA1119
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VEE BEE CONSISTOMETER AZA1101
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