Overview
Dry-mixed lightweight aggregate (LWA) is a pre-blended material consisting of lightweight inorganic particles, such as expanded clay, shale, or slate, combined with binding agents. It is designed for on-site mixing with water to create lightweight concrete or mortar. Unlike traditional aggregates, LWA reduces structural weight while maintaining durability, making it ideal for modern construction projects. The material is favored for its ease of application and consistency, as the dry mix ensures uniform distribution of components. Its composition can be tailored to meet specific project requirements, such as enhanced thermal insulation or improved acoustic performance.
Physical and Chemical Properties
Dry-mixed lightweight aggregate exhibits a bulk density significantly lower than conventional aggregates, typically ranging from 400 to 1,200 kg/m³. This low density is achieved through the porous structure of the particles, which also contributes to its thermal insulation properties. The aggregate is chemically inert, resistant to frost, and non-combustible, ensuring long-term stability in diverse environments. Key physical properties include high porosity (up to 70%), which reduces thermal conductivity, and a compressive strength of 1–10 MPa, suitable for non-load-bearing applications. The material’s pH is neutral, preventing corrosion of embedded metals or reactions with other construction materials.
Main Applications
The primary use of dry-mixed lightweight aggregate is in lightweight concrete for floors, roofs, and prefabricated panels, where weight reduction is critical. It is also employed in insulating screeds and levelling compounds to improve energy efficiency in buildings. Additionally, its sound-absorbing qualities make it a preferred choice for acoustic barriers and interior partitions. In renovation projects, LWA is used to overlay existing structures without overloading foundations. Its versatility extends to landscaping, such as lightweight fill for green roofs or drainage layers in horticultural applications.
Safety and Storage
While dry-mixed lightweight aggregate is non-hazardous, prolonged exposure to dust during handling may cause respiratory irritation. Workers should use masks and goggles, and ensure adequate ventilation in enclosed spaces. The material is stable under normal conditions but must be protected from moisture to prevent clumping or premature activation of binders. Storage recommendations include keeping bags or bulk shipments on pallets in covered, dry areas. Shelf life is typically 6–12 months if stored correctly. Suppliers often provide technical data sheets with specific safety and storage guidelines.
B2B Procurement Guide
When procuring dry-mixed lightweight aggregate, buyers should prioritize suppliers with certifications for consistent quality, such as ISO 9001. Key specifications to verify include bulk density, particle size distribution, and compressive strength. Request samples to test compatibility with project-specific binders or additives. Bulk purchases may offer cost savings, but ensure logistics align with storage capabilities. Regional availability of raw materials (e.g., expanded clay vs. shale) can affect pricing and performance. For large projects, negotiate long-term contracts to mitigate price volatility.
Related Manufacturers
- 主营：轻集料混凝土、lc5.0轻集料混凝、lc7.5轻集料混凝、轻骨料混凝土、陶粒混凝土
- 主营：[]
- 主营：轻集料混凝土、轻质混凝土、轻骨料混凝土、泡沫混凝土
- 主营：陶粒混凝土、卫生间垫层、地面垫层、轻集料混凝土、A型轻集料、B型轻集料、干拌复合轻集料混凝土、lc7.5型轻集料混凝土、AB型轻集料混凝土、干拌轻集料混凝土、Lc7.5轻集料混凝土、屋面垫层用轻集料、LC5.0轻集料发泡、干拌复合轻骨料、干拌轻集料LC5.0、轻骨料混凝土、聚氨酯颗粒轻骨料、楼顶找平垫层、地面垫层屋面找坡、保温回填轻骨料、找坡垫层轻质保温
- 主营：轻集料混凝土、轻质混凝土、泡沫混凝土
- 主营：石墨聚苯板、聚苯板、岩棉板、轻集料、eps聚苯乙烯泡沫板、闭孔板、聚合聚苯板、挤塑板、防水背衬板、橡塑保温、铁皮保温、岩棉复合板、免拆一体板、保温与结构一体化板、岩棉管、硅酸铝管、玻璃棉管、聚氨酯板
- 主营：玻璃鳞片胶泥、聚氨酯保温喷涂、b1级聚氨酯喷涂、轻集料混凝土A型、双组份聚脲喷涂、环氧玻璃鳞片胶泥、高温玻璃鳞片胶泥
- 主营：轻骨料、回填填充、灰色颗粒、轻集料、轻集料混凝土、干拌复合轻集料混凝土、LC7.5轻集料混凝土、复合轻集料混凝土、B型轻集料混凝土、A型轻集料混凝土、轻集料厂家、屋面垫层用轻集料、LC5.0轻集料发泡、LC5.0轻集料混凝、干拌复合轻骨料、楼顶垫层、地面垫层、卫生间填平、聚氨酯泡沫颗粒、轻骨料混凝土、塑料花盆、蓝莓花盆、陶粒混凝土、a型b型轻骨料
- 主营：垫层回填轻集料、混凝土
- 主营：混凝土、墙体材料、气泡轻质土、轻集料混凝土、干拌复合型混凝土、干拌轻集料混凝土、A型轻集料混凝土、轻集料混凝土地面垫层、轻质轻骨料、轻骨料混凝土、Lc7.5轻骨料、陶粒混凝土
- 主营：混凝土、轻质土、基坑回填、轻集料、管道基坑、反背填充、室内回填、泡沫混凝土、发泡沫混凝土
- 主营：聚氨酯保温管、聚氨酯保温钢管、预制直埋保温管、轻集料混凝土生产厂家、聚氨酯发泡保温管、预制直埋聚氨酯保温管、聚氨酯直埋保温管、聚氨酯防腐保温管、聚氨酯预制保温管、塑套钢预制保温管、塑套钢聚氨酯保温管、钢套钢直埋保温管、钢套钢蒸汽保温管、保温装饰一体板、外墙保温装饰一体板、装饰保温一体板、保温装饰一体化板、真石漆保温装饰一体板、外墙装饰保温一体板、岩棉保温装饰一体板、一体化保温板、装饰一体板、装饰一体化板
- 主营：保温材料、玻璃棉板、玻璃棉卷毡、轻集料混凝土厂家、玻璃棉管、玻璃棉保温板、玻璃棉保温毡、橡塑板、橡塑管、橡塑保温板、橡塑保温管、岩棉板、岩棉管、华美岩棉板、华美橡塑板、真空绝热板、真空板、岩棉保温板、岩棉保温管、stp真空绝热板、酚醛板、酚醛保温板、挤塑板、挤塑保温板
- 主营：轻骨料混凝土、玻璃鳞片胶泥、环氧富锌底漆、LC5.0型轻集料、LC7.5型轻集料、轻集料混凝土、氰凝防水防腐涂料、环氧防腐涂料、8710饮用级防腐涂、聚氨酯防腐涂料
- 主营：粘结砂浆、耐水腻子、外墙腻子、轻集料混凝土、抗裂砂浆、粉刷石膏、瓷砖粘结剂、轻质抹灰石膏
- 主营：轻集料混凝土、防水材料、防水涂料、防水卷材
- 主营：岩棉板、聚氨酯板、橡塑板、轻集料混凝土、橡塑管、聚氨酯管壳、酚醛板、泡沫玻璃、泡沫玻璃管壳、STP真空绝热板、铝镁质隔热毡、硅酸铝针刺毯、玻璃棉卷毡、玻璃棉板、电梯井隔音针刺毡、硅酸铝防火包裹、纳米气凝胶毡、穿孔吸音板、挤塑板、匀质板、硅酸盐板