DENSITY OF FRESH AND HARDENED CONCRETE

Buoyancy Balance (Density of Fresh and Hardened Concrete)

Product Code: MSI 2053

The Buoyancy Balance System is a high-precision, versatile hydrostatic weighing system engineered to determine the density of both fresh and hardened concrete specimens, including cubes and cylinders. Density data is crucial for assessing structural durability, compressive strength, and resistance to fluid permeability.

The apparatus features a rigid steel structural support frame integrated with a dedicated water tank mounted on a mobile platform. The system uses a mechanical lifting device to raise the water tank through the frame height, smoothly immersing the concrete specimen suspended below the balance in a heavy-duty cradle. The system allows operators to weigh samples in both air and water, providing a complete solution for legal code compliance calculations.

🎯 Applications

• Hydrostatic Density Determination of Hardened Concrete Cubes & Cylinders

• Density Verification of Fresh Concrete Matrices

• Durability and Permeability Resistance Correlation Analysis

• Civil Engineering & Third-Party Calibration Laboratories

• Ready Mix Concrete (RMC) Quality Control Plants

• Academic Research & Material Science Engineering Universities

⭐ Features

• Dual-Purpose Metrology: The top-mounted balance functions as both a hydrostatic underwater gauge and a standard laboratory benchtop scale.

• Mechanical Lifting System: Features a smooth mechanical lift that handles heavy concrete loads without manual straining or water splashing.

• Heavy-Duty Support Frame: The structural steel chassis isolates the sensitive balance from external vibrations to ensure steady readings.

• Integrated Specimen Cradle: The underwater wire cradle keeps standard concrete cubes and cylinders perfectly centered during immersion.

• Rapid Quality Control Auditing: Eliminates time-consuming manual dimensional calculations by providing an instant weight-in-water displacement metric.

⚙️ Technical Specifications

Product Code : MSI 2053

Test Method : Hydrostatic Buoyancy / Weight-in-Water Method

Compatible Samples : Standard Concrete Cubes, Cylinders, and Cores

Lifting Mechanism : Manual Mechanical Lifting Device

Structure Frame : Heavy-Duty Rigid Coated Steel

Weighing Modes : Dual Mode (Standard Air Weighing & Submerged Buoyancy)

Operation Requirement : Manual Crank Lift with Electronic Balance Readout

📦 Standard Supply Includes

• Rigid Structural Steel Support Frame Floor Assembly

• Heavy-Gauge Water Displacement Tank

• Mechanical Platform Lifting Device

• High-Precision Electronic Weighing Balance

• Heavy-Duty Specimen Suspension Cradle

• Operating, Density Calculation, and Maintenance Manual

🔬 Working Principle

The concrete specimen is placed on the balance cradle and weighed in the air to record its dry mass (\(W_{\text{air}}\)). The specimen is then moved to the lower suspension hook on the cradle.

The operator turns the manual crank handle on the mechanical lifting device to raise the water tank platform. The water rises uniformly to fully submerge the specimen. The balance records the buoyant weight in water (\(W_{\text{water}}\)). Using Archimedes' principle, the volume and exact density of the specimen are calculated using the formula:

\(\text{Density}=\frac{W_{\text{air}}}{W_{\text{air}}-W_{\text{water}}}\times \text{Density\ of\ Water}\)

💡 Advantages

• Accelerates routine laboratory checking by replacing manual vernier measurements with a fast, single-button scale log.

• Handles high-mass test specimens safely thanks to a stable mechanical platform lift.

• Saves valuable bench space by serving as both a primary density station and a standard everyday laboratory scale.

• Corrosion-resistant finishes prevent rust degradation from prolonged exposure to water and concrete dust.

🤝 Why Choose Multitech Scientific Instruments?

• Precision-engineered concrete testing equipment.

• Manufactured strictly to International Standards.

• High-quality fabrication and robust material choices.

• Consistent and reliable performance.

• Competitive pricing models.

• Excellent after-sales technical support.

• Trusted by laboratories, contractors, consultants, and educational institutions globally.

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