4 x 8in Concrete Test Cylinders — Black with Domed Lid (92/Case)

The 4 x 8in Concrete Test Cylinders with Black Domed Lid (92/Case) are precision-manufactured test specimens used to evaluate the compressive strength of concrete. These cylinders are widely used in construction, materials testing labs, quality control departments, and field testing environments to ensure concrete meets design requirements and industry standards.

These cylinders are manufactured to tight tolerances and designed for consistent performance. The black domed lid protects the specimen during curing and handling. With 92 cylinders per case, this set provides excellent value for labs and job sites that conduct frequent testing or large batch evaluations.

Purpose of Concrete Test Cylinders

Concrete test cylinders play a critical role in verifying the quality and performance of concrete mixtures. After concrete is poured, specimens are cast into cylinders and allowed to cure. Once cured, they are tested for compressive strength using compression testing machines. These results help engineers and contractors verify that the concrete meets required strength criteria for structural performance and safety.

The use of standardized cylinder sizes, like the 4 x 8in dimension, ensures that test results are comparable and reliable across different batches, projects, and testing facilities. The consistent size also makes handling, curing, and testing more efficient.

Design and Construction

These concrete test cylinders are crafted from high-quality materials that withstand the rigors of curing and testing. The walls of each cylinder are engineered to be smooth and uniform, minimizing variables that could affect test accuracy.

The domed lid serves multiple purposes. It protects the cylinder during storage and transport, retains moisture during the curing process, and helps maintain the specimen’s shape. The black color provides a consistent visual reference that can be useful for sorting and inventory control in busy lab environments.

With 92 cylinders in each case, this product is ideal for high-volume testing operations. This quantity supports frequent compressive tests without frequent reordering, which saves time and simplifies inventory management.

Applications

These cylinders are commonly used in:

• Concrete strength testing labs

• Construction quality control departments

• Field testing for infrastructure projects

• Material research facilities

• Educational labs and training centers

They are especially useful in testing concrete mixes for bridges, highways, buildings, slabs, pavements, and other structural projects where strength verification is critical.

Benefits of Using Standardized Cylinders

Using standard 4 x 8in concrete cylinders offers several key advantages:

• Reliable Test Results: Uniform size and construction help produce consistent and repeatable compressive strength data.

• Industry Acceptance: Widely recognized and accepted by ASTM and other testing standards.

• Efficient Handling and Storage: Standard size allows for easy curing and testing workflow in labs and field settings.

• High Quantity Case Pack: 92 cylinders per case support frequent testing and large projects.

Standardized cylinders make the testing process more predictable and efficient. They help technicians focus on test accuracy rather than handling issues.

Conclusion

The 4 x 8in Concrete Test Cylinders with Black Domed Lid (92/Case) are reliable, high-quality specimens designed for consistent and accurate compressive strength testing. Their uniform construction and protective domed lids ensure stable curing and dependable results. Ideal for labs, construction quality control, and field testing environments, this case pack delivers excellent value and performance for frequent use. These cylinders support critical concrete evaluation tasks that help ensure project safety, durability, and compliance with engineering standards.