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Aggregate
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General Items
AVERAGE LEAST DIMENSION AZA0976
The AZA0976 Average Least Dimension (ALD) Gauge is a precision instrument designed to measure the flakiness index of coarse aggregates. It is widely used in civil engineering and construction materials laboratories to evaluate the shape and quality of aggregates for concrete and asphalt applications. Manufactured as per IS 2386 (Part I), this gauge ensures accurate, repeatable, and reliable dimensional classification.
Key Features
- Measures flakiness index of coarse aggregates
- Fully compliant with IS 2386 (Part I) standards
- Precision steel frame with clearly labeled slots
- Easy-to-use, manual operation for rapid testing
- Heavy-duty, corrosion-resistant construction
- Suitable for laboratory and field environments
Description
Why ALD Testing Is Important
Flaky and elongated aggregates create voids in compacted layers, leading to:
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Reduced mechanical strength
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Higher water and binder demand
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Poor interlocking and stability
The AZA0976 helps identify unsuitable particles and ensures only quality aggregates are used in critical infrastructure projects.
Working Principle
The gauge uses standard-sized slotted openings:
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Aggregate particles are passed through the slots manually
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Particles passing through slots < 0.6 × their nominal size are classified as flaky
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The flakiness index is calculated as a percentage by weight
Applications
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Highway and pavement engineering
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Concrete and asphalt mix design
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Construction material QC departments
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Research and academic laboratories
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Aggregate crushing and screening plants
Technical Specifications
| Parameter | Specification |
|---|---|
| Model No. | AZA0976 |
| Slot Material | Stainless steel / Powder-coated steel |
| Slot Size Range | 6.3 mm to 63 mm |
| Gauge Type | Manual drop-through slotted gauge |
| Frame Type | Compact benchtop steel frame |
| Operation | Manual |
| Standards | IS 2386 (Part I), ASTM D4791 (Reference) |
| Accessories | Instruction manual |
FAQ
Q1: What does the AZA0976 ALD Gauge measure?
It measures the average least dimension of coarse aggregate particles to determine the flakiness index.
Q2: Is it IS-standard compliant?
Yes, it is fully compliant with IS 2386 (Part I).
Q3: What particle sizes can be tested?
It supports sizes from 63 mm to 6.3 mm.
Q4: Where can it be used?
It is suitable for civil engineering laboratories, construction sites, and quality control departments.
Q5: Does it require calibration?
No calibration is required, but periodic visual inspection is recommended.
Additional information
| Slot Material |
Stainless steel or powder-coated steel |
|---|---|
| Slot Sizes |
63 mm to 6.3 mm (as per IS 2386) |
| Gauge Type |
Manual drop-through size gauge |
| Frame Dimensions |
Compact bench-top frame |
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Related products
AGGREGATE CRUSHING VALUE APPARATUS AZA0982
Key Features
- Measures crushing strength of coarse aggregates
- Conforms to IS:2386 (Part IV) and BS 812 standards
- Precision-machined steel cylinder and plunger
- Heavy-duty, corrosion-resistant construction
- Supplied with complete accessories for immediate testing
DENSITY BASKET AZA0978
Key Features
- Used for specific gravity and water absorption tests
- Made from high-quality stainless steel mesh
- Equipped with a strong welded suspension hook
- Corrosion-resistant, rust-free and long-lasting
- Smooth welded edges to prevent sample damage
- Standardized mesh aperture for proper water flow
INDEX APPARATUS (FLOW COEFFICIENT OF FINE AGGREGATES) AZA0975
The AZA0975 Flow Coefficient Index Apparatus is a precision laboratory instrument designed to measure the flow coefficient of fine aggregates, such as natural sand and crushed sand. This test helps evaluate workability, particle shape, and grading, which are critical factors in concrete and mortar mix performance. The apparatus is manufactured in compliance with IS 2386 (Part I) and is widely used in civil engineering laboratories and construction quality control departments.
Key Features
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Measures flow coefficient of fine aggregates
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Fully compliant with IS 2386 (Part I)
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Evaluates workability and particle shape characteristics
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Supplied as a complete set: funnel, stand, cylinder, and base plate
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Precision-machined components for consistent results
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Corrosion-resistant, durable construction
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Easy manual operation for laboratory and field use
LENGTH GAUGE AZA0971
The AZA0971 Length Gauge is a precision construction materials testing instrument designed to determine the elongation index of coarse aggregates. It is an essential tool for evaluating particle shape characteristics, which directly influence the strength, durability, and workability of concrete and asphalt mixes. The gauge is manufactured to strict quality standards, ensuring reliable and repeatable results in laboratory and field environments.
Key Features
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Designed for determining elongated particles in coarse aggregates
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Essential for concrete, bituminous, and road material analysis
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Precision metal frame with standard machined slot dimensions
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Heavy-duty, corrosion-resistant construction
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Accurate performance as per international and national standards
LOS ANGELES ABRASION TESTING MACHINE AZA0986
Key Functions
- Tests abrasion resistance of coarse aggregates
- Evaluates impact strength under repeated load cycles
- Ensures material suitability for roads, highways, and structural concrete
- Provides accurate, repeatable test results for quality control
RIFFLE SAMPLE DIVIDER AZA0980
Key Features
- Accurate material splitting for laboratory testing
- Heavy-duty corrosion-resistant metal construction
- Uniform slot widths for consistent sample division
- Smooth-flow chute design for minimal sample loss
- Supplied with two receiving pans for clean, efficient operation
- Compact bench-top design
TIG Welding Machine AZA 1235
- TIG welding machine for precise, clean welds
- Dual voltage input (110V/220V) for flexibility
- Advanced IGBT inverter technology
- Digital LCD display for accurate settings
- Ideal for steel, stainless steel, and aluminum
- Overheat and overload protection
- Lightweight and portable for field use
- Model: AZA 1235 – designed for professional use
