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What are the main types of lightweight concrete?

Lightweight concrete is categorized by the type of lightweight aggregate, including: Lightweight Concrete, such as pumice concrete, volcanic ash concrete, and porous tuff concrete, etc. Artificial Lightweight Concrete, such as clay陶粒 concrete, shale陶粒 concrete, expanded perlite concrete, and concrete made with organic lightweight aggregates, etc. Industrial Waste Lightweight Concrete, such as coal slag concrete, fly ash陶粒 concrete, and expanded slag bead concrete, etc.

Divided by fine aggregate types: Lightweight concrete. Lightweight concrete using lightweight sand as fine aggregate. Sand lightweight concrete. Lightweight concrete using ordinary sand as part or all of the fine aggregate.

Insulation Lightweight Aggregate Concrete: With a density less than 800 kg/m³ and compressive strength less than 5.0 MPa, it is primarily used for insulated envelopes and thermal structures. Structural Lightweight Aggregate Concrete: Density ranges from 800 to 1400 kg/m³, compressive strength from 5.0 to 20.0 MPa, mainly used for reinforced and unreinforced envelopes. Structural Lightweight Aggregate Concrete: Density ranges from 1400 to 1800 kg/m³, compressive strength from 15.0 to 50.0 MPa, mainly used for load-bearing elements, prestressed components, or structures.