Sand Absorption Cone & Tamper

Conical Mold and Tamper testing equipment is essential for any construction materials laboratory that performs precise evaluations on fine aggregates. This durable stainless-steel set is specifically designed to support accurate determination of bulk density, unit weight, and voids content in fine aggregates. Engineered for precision, stability, and consistent performance, the Conical Mold and Tamper follow the strict requirements set by ASTM and AASHTO standards, ensuring every test result is reliable and repeatable.

From concrete mix design to quality assurance routines, the Conical Mold and Tamper play a critical role in helping technicians maintain control over fine aggregate characteristics. Their rugged build, ergonomic handling, and long service life make them indispensable tools for materials testing laboratories, construction companies, consulting firms, and academic institutions that rely on repeatable and standardized testing practices.

Conical Mold and Tamper – Overview and Key Applications

The Conical Mold and Tamper are used extensively to evaluate how fine aggregates behave under controlled compaction conditions. These tests allow laboratories to calculate important parameters such as:

• Bulk density

• Percentage of voids

• Packing condition

• Angularity and texture influence

• Material uniformity

When fine aggregates are used in concrete, asphalt, mortars, or base materials, their density characteristics play a major role in mixture performance. The Conical Mold and Tamper ensure accurate assessment of these properties, providing the data needed for sound engineering decisions and high-quality material production.

This testing setup is especially valuable in:

• Concrete quality control

• Asphalt mix design

• Aggregate production analysis

• Soil and fine material evaluation

• Academic laboratory training

Conical Mold and Tamper Construction – Durable Stainless-Steel Build

High-Strength Stainless Steel for Long-Term Performance

The Conical Mold is manufactured using premium-grade stainless steel, providing exceptional durability, corrosion resistance, and long-term dimensional stability. Even under heavy laboratory use, the mold maintains its shape and integrity, ensuring that each test begins with a precisely formed and standardized container.

The stainless-steel Tamper offers a comfortable grip and consistent compaction action, allowing technicians to apply uniform force during testing. Its smooth, polished finish prevents particle adherence, ensuring clean, accurate test results every time.

Precision Dimensions for Standardized Testing

The Conical Mold and Tamper meet all dimensional and performance specifications required by:

• ASTM C29

• AASHTO T19

These standards define the exact dimensions and testing procedures necessary to evaluate fine aggregate bulk density accurately. Because this equipment is built in compliance with these regulations, it integrates seamlessly into quality-control workflows and testing protocols already established in professional materials laboratories.

Conical Mold and Tamper Function and Testing Process

 Stable, Easy-to-Handle Conical Mold

The conical shape provides optimal stability during filling, leveling, and compaction. The mold’s wide base prevents tipping or shifting during the test, ensuring that all measurements remain consistent and precise. Its smooth interior surface helps achieve uniform material distribution, reducing friction and allowing fine aggregates to settle naturally under compaction.

Ergonomic Tamper for Consistent Compaction

The Tamper is designed to deliver consistent impact energy with every stroke. Its balanced weight helps operators maintain the correct compaction pressure without straining the wrist, and its shape encourages even distribution of force across the aggregate surface.

This combination of ergonomic handling and functional precision ensures that every test follows the standardized compaction method required for accurate density and void calculation.

Conical Mold and Tamper – Advantages for Professional Laboratories

Using the Conical Mold and Tamper provides several operational benefits:

• High durability from corrosion-resistant stainless steel

• Consistent test accuracy thanks to precise dimensions and stable construction

• Compliance with ASTM and AASHTO standards

• Easy cleaning and maintenance

• Ergonomic handling for technicians

• Reliable measurements of bulk density and voids

These advantages make the Conical Mold and Tamper highly efficient tools for laboratories seeking dependable fine aggregate evaluation methods.

 Ideal Tool for Aggregate Quality Control

Fine aggregates play a major role in determining the performance of concrete, asphalt, structural fill, and a wide range of construction materials. A small change in voids or density can significantly impact mixture behavior. This is why every testing laboratory needs access to the Conical Mold and Tamper, ensuring:

• Proper control of material consistency

• Accurate determination of void ratios

• Better prediction of mixture performance

• Compliance with industry standards

• Repeatable laboratory results