Testing Products

Solid Concrete Bricks

Load-Bearing Concrete Perforated Bricks

Non-Load-Bearing Concrete Hollow Bricks

Ordinary Concrete Small Blocks (Small Concrete Blocks)

Autoclaved Lime-Sand Solid Bricks and Solid Blocks

Autoclaved Foamed Concrete Bricks and Blocks

Autoclaved Lime-Sand Perforated Bricks

Autoclaved Aerated Concrete Blocks (AAC Blocks)

Concrete Blocks for Ecological Revetments and Dry-Laid Retaining Walls

Ceramsite Foamed Concrete Blocks

Ceramsite Aerated Concrete Blocks

Testing Items

Dimensional deviation and appearance quality

Strength grade

Density grade

Water absorption

Relative moisture content

Carbonation coefficient

Softening coefficient

Drying shrinkage value

Freeze-thaw resistance

Void ratio (hole pattern / cavity ratio)

Radionuclide limits

Thermal conductivity

Thermal storage coefficient (heat accumulation coefficient)

Impermeability (water penetration resistance)

Pull-out resistance (pull-out strength / pull-out force)

Single-point hanging force (concentrated load resistance)

Fire resistance rating (fire resistance limit)

Testing Standards

Solid Concrete Bricks:

GB/T 21144, GB/T 4111, GB 6566

Load-Bearing Concrete Perforated Bricks:

GB/T 25779, GB/T 4111, GB 6566

Non-Load-Bearing Concrete Hollow Bricks:

GB/T 24492, GB/T 4111, GB 6566

Ordinary Concrete Small Blocks:

GB/T 8239, GB/T 4111, GB 6566

Autoclaved Lime-Sand Solid Bricks and Solid Blocks:

GB/T 11945, GB/T 2542, GB/T 4111, GB 6566

Autoclaved Foamed Concrete Bricks and Blocks:

GB/T 29062, GB/T 2542, GB/T 4111, GB 6566

Autoclaved Lime-Sand Perforated Bricks:**

JC/T 637, GB/T 2542, GB/T 4111, GB 6566

Autoclaved Aerated Concrete Blocks (AAC Blocks):

GB/T 11968, GB/T 11969, GB 6566

Concrete Blocks for Ecological Revetments and Dry-Laid Retaining Walls:

JC/T 2094, GB/T 4111

Ceramsite Foamed Concrete Blocks:

GB/T 11968, GB/T 11969, GB/T 4111, GB 6566

Ceramsite Aerated Concrete Blocks:

GB/T 11968, GB/T 11969, GB/T 4111, GB 6566, GB 9978.1

Service Advantages

Specialized in non-fired wall material product performance testing for over 20 years.

Focused on the testing and performance improvement of domestic non-fired brick and block products, participating in the development of multiple related standards.

Lead editor of multiple Zhejiang Provincial supervision and random inspection evaluation rules for concrete bricks and blocks.

Participated in Zhejiang Provincial quality supervision and random inspection of fired bricks and blocks for many consecutive years.

The most trusted service partner for new wall material manufacturers in the Yangtze River Delta region.