Building materials are a general term for materials used in civil engineering and construction projects. It can be divided into structural materials, decorative materials, and certain specialized materials. Structural materials include wood, bamboo, stone, cement, concrete, metal, bricks and tiles, ceramics, glass, engineering plastics, composite materials, etc.

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Decorative materials include various coatings, paints, coatings, veneers, various colored tiles, glass with special effects, etc; Specialized materials refer to materials used for waterproofing, moisture resistance, corrosion prevention, fire prevention, flame retardancy, sound insulation, heat insulation, thermal insulation, sealing, etc.

What are the testing ranges for building materials?

The testing scope of building materials can be divided into insulation, thermal insulation, waterproofing, fireproofing, and other categories based on their material effects.

Thermal insulation materials: inorganic insulation materials, organic insulation materials, soft ceramic insulation materials, exterior wall insulation materials, phenolic resin foam materials, foam cement insulation materials, etc;

L Thermal insulation: foam materials, fiber materials, heat reflective materials, vacuum insulation materials, etc;

Waterproof materials: waterproof rolls, waterproof composite materials, polyurethane waterproof coatings, acrylic waterproof materials, waterproof coatings, waterproof glass, waterproof bags, waterproof plastic materials, etc;

Fireproof category: fireproof board, fireproof door, fireproof wooden window frame, fireproof rolling shutter, fireproof storage box, fireproof coating, etc;

Other categories: moisture-proof materials, anti-corrosion materials, flame retardant materials, sound insulation materials, etc.

What are the testing contents of building materials?

Formaldehyde detection: applicable to the determination of formaldehyde emissions from various indoor decorative materials such as artificial boards and composite wooden floors

Heavy metal detection: toxic heavy metals such as mercury, cadmium, lead, chromium, arsenic, copper, zinc, nickel, cobalt, tin, etc. Volatile Organic Compounds

Detection: hydrocarbons, halogenated hydrocarbons, oxygenated hydrocarbons, and nitrogen-containing hydrocarbons, including benzene derivatives, organic chlorides, Freon series, organic ketones, amines, alcohols, ethers, esters, acids, and petroleum hydrocarbon compounds.

Conventional performance indicators: density, thickness, size, water absorption, toughness, etc.

Physical and chemical properties: hardness, stiffness, elastic modulus, elongation at break, friction performance, tensile and compressive strength, etc.

Aging performance: resistance to high and low temperatures, salt spray test, UV aging, thermal aging performance, etc.

Thermal properties: thermal stability, melting temperature, coefficient of expansion, oxidation index, etc.

Electrical properties: electrical insulation, dielectric constant, dielectric loss, etc.

Environmental performance: acid resistance, alkali resistance, salt resistance, solvent resistance, etc.

Hazardous substance detection: soluble heavy metals, phthalates, formaldehyde, REACH, ROHS, etc.

Composition analysis: By using qualitative and quantitative analysis methods, it is possible to accurately analyze the composition, element content, oxide content, and filler content in the submitted sample.

What are the testing items for building materials?

Thermal conductivity, heat transfer coefficient, thermal resistance, moisture permeability, density, water absorption, moisture content, dimensional stability, bending performance, compression performance, tensile performance, long-term compression deformation, tear strength, combustion performance, sound absorption performance, sound insulation performance, phase change temperature, wind pressure resistance performance, reliability testing, weather resistance testing, aging testing, environmental protection testing, content determination, etc.