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L Box Apparatus

Name: L Box Apparatus
Brand: Sami Lab Tek
Price: 10000.0 INR
Availability: InStock

Price 10000.0 INR/ Unit

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MOQ : 1 Unit

L Box Apparatus Specification

Features
Robust Construction, Easy to Clean, Portable, Corrosion Resistant

Test Range
Suitable for fresh concrete SCC consistency

Measuring Range
Ratio H2/H1 (height after passing)

Power Supply
Not Required (Manual)

Accuracy
High - as per IS: 1199 and EFNARC guidelines

Resolution
Millimeter scale

Humidity
Ambient

Max Height
200 mm (vertical leg)

Hardness
Industrial-grade Durable Plastic/Metal

Specimen Size
L-box: 200 mm long vertical section, 700 mm horizontal section

Temperature
Ambient

Mounting Type
Table Mount

Display Type
Graduated Scale

Response Time
Immediate (Manual reading)

Number of Specimens
Single per test

Automation Grade
Manual

Application
To determine passing ability and filling ability of Self Compacting Concrete (SCC)

Usage
Laboratory/Field SCC Testing

Capacity
Capacity for single concrete mix per test

Machine Weight
Approx. 6-8 kg

Test Speed
Manual Operation

Test Width
65 mm (inner width of L-box)

Control Mode
Manual

Bar Diameter
12 mm (as per specification)

Inner Depth
150 mm (vertical box section)

Packing Type
Sturdy export-worthy packing

Cleaning Requirement
Easy to disassemble and clean

Gate Material
Stainless steel, sliding type

Finish
Powder coated and anti-corrosive

Equipment Type
L Box Apparatus

Vertical Box Height
200 mm

Horizontal Box Length
700 mm

Bar Spacing
3 bars at 41 mm spacing (standard)

L Box Apparatus About

An L Box Apparatus is a specialized testing equipment used to determine the flowability and passing ability of self-compacting concrete (SCC). It helps evaluate the ability of fresh concrete to flow through reinforcing bars without segregation or blocking.

The apparatus consists of an L-shaped box with vertical and horizontal sections, along with steel reinforcement bars placed at the gate. It is widely used in construction laboratories, research institutions, and quality control departments to ensure the performance of SCC mixtures.

Key Features

Accurate assessment of concrete flow characteristics
Robust and corrosion-resistant construction
Smooth internal surfaces for reliable test results
Easy to assemble, operate, and clean
Designed as per standard testing specifications
Compact and durable design

Technical Specifications (Typical)

Material: Mild Steel / Stainless Steel
Structure: L-shaped box with vertical and horizontal sections
Gate Mechanism: Sliding gate
Reinforcement Bars: Adjustable spacing
Dimensions: As per standard guidelines (EFNARC/IS)
Finish: Powder-coated / Painted

Applications

Testing self-compacting concrete (SCC)
Construction material testing laboratories
Research and development centers
Quality control in construction projects
Educational institutions and civil engineering labs

Advantages

Helps ensure proper mix design of SCC
Detects blocking and segregation issues
Improves quality and consistency of concrete
Simple and reliable testing method
Essential for modern high-performance concrete testing

Additional Information

The L Box Apparatus is a vital tool for evaluating the performance of self-compacting concrete in terms of passing ability. It plays a crucial role in ensuring high-quality, durable, and defect-free concrete structures.

Accurate SCC Consistency Assessment

Designed specifically for testing the passing and filling abilities of Self-Compacting Concrete (SCC), the L Box Apparatus provides highly accurate results in accordance with IS: 1199 and EFNARC guidelines. Its 150 mm deep vertical section and 700 mm horizontal length offer ample space to evaluate a single specimen per test, ensuring precise consistency assessment for your concrete mix.

User-Friendly and Durable Construction

The apparatus features a robust construction, crafted from industrial-grade materials with a corrosion-resistant, powder-coated finish. The stainless steel sliding gate and easy-to-disassemble design facilitate quick cleaning between uses. Its portable, table-mount form factor and manual operation without power requirements make it a convenient choice for both laboratory and field environments.

Comprehensive Testing for Professionals

Trusted by manufacturers, suppliers, traders, and service providers across India, this L Box Apparatus is suited for routine quality control and research applications. Its manual graduated scale is clear and immediate, providing reliable results that support decision-making in concrete production and construction projects.

FAQ's of L Box Apparatus:

Q: How is the L Box Apparatus used to test self-compacting concrete?

A: The L Box Apparatus measures the passing and filling ability of Self-Compacting Concrete (SCC) by allowing fresh concrete to flow from the vertical to the horizontal section, passing through bars that simulate reinforcement. The flow is observed and the ratio of concrete height before and after passing the bars (H2/H1) is used as the performance indicator.

Q: What are the standard dimensions and features of the L Box Apparatus?

A: This apparatus includes a 200 mm high vertical box, 700 mm long horizontal section, 65 mm wide internal channel, stainless steel gate with sliding operation, and three 12 mm diameter bars spaced 41 mm apart. Its powder-coated, anti-corrosive finish and robust construction make it durable and suitable for field or lab use.

Q: Who should use the L Box Apparatus and where is it typically employed?

A: Manufacturers, service providers, suppliers, and traders involved in SCC production and quality control should use this apparatus. It is ideally employed in laboratory and field settings for testing the workability and flow characteristics of fresh self-compacting concrete.

Q: What is the process for conducting a test using the L Box Apparatus?

A: To test, fill the vertical section with fresh SCC, open the stainless steel sliding gate, and allow the mix to flow horizontally through the bars. After the flow ceases, measure the concrete heights at the end and behind the bars using the graduated scale to calculate the H2/H1 ratio for passing ability assessment.

Q: What are the benefits of using a manually operated L Box Apparatus?

A: Manual operation offers immediate feedback, high accuracy, and independence from external power sources. The apparatus is also easy to clean, portable, and corrosion resistant-making it a reliable choice for both laboratory and site-based testing environments.

Q: How do you clean and maintain the L Box Apparatus after testing?

A: The apparatus is designed for fast disassembly. After use, rinse all parts thoroughly with water, ensuring that concrete residue is removed from both the vertical and horizontal sections as well as the bars and gate mechanism, maintaining its performance and longevity.

Q: When should you use the L Box Apparatus during concrete production?

A: Use the L Box Apparatus after mixing a new batch of SCC, before pouring, to confirm the mix meets required passing and filling ability criteria. Regular testing helps ensure consistent quality and compliance with project specifications.

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