What does the inspection of building products include?

The inspection of construction engineering products includes various inspections and evaluations of building materials, building components and systems to ensure that they meet the design specifications, quality standards and safety requirements. The main contents of building engineering product testing are as follows:

Material testing:

Cement: testing strength, fineness, setting time, stability, etc.

Concrete: testing compressive strength, flexural strength, water content, mix proportion, etc.

Steel: testing tensile strength, yield strength, elongation, bending properties, etc.

Bricks and blocks: testing compressive strength, water absorption, density, etc.

Sand and gravel aggregate: check particle gradation, silt content, crushing index, etc.

Component check:

Precast members: such as precast beams, slabs, columns, etc. , and their size, appearance quality, strength, etc. Tests should be carried out.

Reinforced concrete members: detect the position of reinforcement, the thickness of protective layer, the strength of concrete, etc.

Steel structure members: check welding quality, bolt connection, coating quality, etc.

Building structure inspection:

Bearing capacity test: including static load test and dynamic load test. To evaluate the actual bearing capacity of the structure.

Deformation monitoring: such as settlement, inclination, crack width, etc. To monitor the deformation and damage of the structure.

Nondestructive testing: such as ultrasonic testing, X-ray testing, magnetic particle testing, etc. To evaluate the internal defects of the structure.

Detection of building envelope system;

Doors and windows: test air tightness, water tightness, wind pressure resistance, sound insulation, etc.

Exterior wall and roof: test waterproof performance, heat insulation performance and wind pressure resistance.

Thermal insulation material: test thermal conductivity, combustion performance, water absorption, etc.

Inspection of construction equipment and installation works:

Electrical system: test the insulation resistance, grounding resistance and short circuit protection of electrical equipment.

Water supply and drainage system: test the tightness, water pressure test and drainage smoothness of the pipeline.

HVAC system: Test the cooling/heating capacity, air distribution and noise level of the system.

Indoor environment detection:

Air quality: detect the concentration of harmful gases such as formaldehyde, benzene, ammonia and TVOC.

Noise level: Test indoor noise and sound insulation effect.

Lighting: Test indoor lighting and lighting uniformity.

Fire detection:

Fire fighting equipment: test the performance of fire extinguishers, fire hydrants, fire alarm systems, etc.

Fire protection components: such as fire doors, fire shutters, etc. And its fire resistance and air tightness were tested.

Energy saving detection:

Energy consumption: evaluate the energy efficiency of buildings, such as energy consumption of heating, air conditioning and lighting systems.

Energy-saving measures: test the actual effect of energy-saving materials and equipment, such as heat insulation materials and energy-saving windows.

Through these tests, the quality and performance of building engineering products can be guaranteed, and the safety, reliability and durability of buildings can be guaranteed.