4 x 8in Concrete Test Cylinders with Flat Lid – Gray (36/Case)

The 4 x 8in Concrete Test Cylinders with Flat Lid – Gray (36 per case) are precision-manufactured testing specimens designed for accurate evaluation of concrete compressive strength. These cylinders are widely used in construction testing laboratories, quality control departments, and field testing operations where reliable and repeatable test results are essential.

Manufactured to strict dimensional tolerances, these concrete test cylinders provide consistency during curing, handling, and testing. The flat lid design allows for easy placement and stable curing, helping technicians achieve dependable results across a wide range of concrete mix designs.

Purpose of Concrete Test Cylinders

Concrete test cylinders are used to verify the compressive strength of concrete in accordance with established testing standards. Fresh concrete is placed into the mold, cured under controlled conditions, and later tested using a compression testing machine. The resulting data helps engineers, inspectors, and contractors confirm that the concrete meets specified strength requirements for structural performance and safety.

The standardized 4 x 8in size is commonly accepted in concrete testing and ensures compatibility with most curing racks, capping systems, and compression machines. Using consistent specimen dimensions helps minimize variability and supports accurate comparisons between test batches.

Durable Construction and Design

These gray concrete cylinders are constructed from high-quality materials that resist deformation during curing and handling. The smooth interior walls promote easy specimen removal while maintaining uniform shape and surface finish. This consistency is critical for achieving reliable test results.

The flat lid provides a level surface that supports even curing and stacking when needed. Its design also simplifies labeling and identification, which is especially useful in laboratories managing multiple samples simultaneously. The gray color offers a neutral appearance that works well in organized testing environments.

With 36 cylinders per case, this product is ideal for medium-volume testing operations. It provides sufficient quantity for ongoing projects without excessive storage requirements.

Common Applications

These concrete test cylinders are commonly used in:

• Concrete testing laboratories

• Construction quality control programs

• Field sampling and testing

• Infrastructure and building projects

• Educational and research facilities

They support testing for structural concrete used in foundations, slabs, beams, columns, pavements, and other critical applications.

Benefits of Using Standard 4 x 8in Cylinders

• Consistent and repeatable compressive strength results

• Widely accepted standardized size

• Compatible with curing racks and compression machines

• Durable construction for reliable handling

• Flat lid design for stable curing and identification

Standardized cylinders help streamline testing procedures and reduce the likelihood of errors caused by inconsistent specimen preparation.

Conclusion

The 4 x 8in Concrete Test Cylinders with Flat Lid – Gray (36/Case) offer dependable performance for concrete compressive strength testing. Their durable construction, flat lid design, and standardized dimensions make them a reliable choice for laboratories and field testing environments. Whether used for quality control, compliance testing, or research, these cylinders provide consistent results that support safe and accurate concrete evaluation.