Lightweight aggregate concrete leveling pad slope reference usage method
Reference Dosage: (5 bags of pre-mixed subbase material + 5 bags of composite lightweight aggregates) per m³
Lightweight concrete is a type of lightweight concrete made by mixing porous lightweight aggregates with cement. Compared to regular concrete, it not only boasts features like low self-weight, good thermal insulation, seismic resistance, and fire resistance, but also efficiently utilizes local natural resources (such as pumice, shale, etc.) and industrial waste (like fly ash, etc.).
The emergence of lightweight aggregate concrete can effectively reduce the generation of construction waste, cleaning our living environment. The research on lightweight aggregates is mainly aimed at reducing the production of construction waste, and our country has also invested significantly in this area.
There is a significant issue facing the development of recycled glass aggregate for commercial concrete. Crushed recycled glass can be used to blend commercial concrete, producing lightweight aggregates with an apparent density of 0.18g/cm³ and a water absorption rate of 11%. The pores in lightweight aggregates can absorb some volume deformation, and specimens made with these aggregates and Portland cement containing 0.92% Na2O did not exhibit volume expansion or cracking.
Lightweight aggregate concrete bedding level slope, reference usage method
Lightweight aggregate concrete has low water absorption and vapor permeability, high compressive strength, excellent thermal insulation, superior moisture resistance, and high compressive modulus, making it an ideal roof insulation material. Its insulation performance is excellent with a thermal conductivity coefficient as low as 0.043 (K,℃), and it is easy and quick to install, saving labor. Lightweight aggregate concrete can be bonded seamlessly with the main structure, achieving the same lifespan and reducing future maintenance costs. It is mainly used for reinforced and unreinforced protective structures. Structural lightweight aggregate concrete has a specific gravity of 1400~1800 kg/m³ and a compressive strength of 15.0~50.0 MPa, primarily used for load-bearing elements, prestressed components, or structures.
