Overview
Cellular concrete is a versatile building material created by introducing stable air bubbles into a cementitious slurry, typically using protein-based or synthetic foaming agents. Unlike traditional concrete, its porous structure reduces weight by up to 75% while maintaining structural integrity. First developed in the 1920s, modern formulations incorporate additives like fly ash or silica fume to enhance performance. The material cures similarly to conventional concrete but requires no compaction due to its self-leveling properties. It is commonly produced on-site with specialized foam generators or supplied as pre-cast blocks. Environmental benefits include reduced raw material consumption and lower carbon footprint compared to dense concrete.
Physical and Chemical Properties
The physical properties of cellular concrete are primarily determined by its density, which correlates with bubble volume. Low-density mixes (400–800 kg/m³) excel in insulation, while high-density versions (1200–1600 kg/m³) offer greater load-bearing capacity. Thermal conductivity ranges from 0.1–0.7 W/mK, outperforming traditional concrete by 50–80%. Chemically, it shares cement's alkaline nature (pH 10–12) but exhibits reduced efflorescence due to closed pores. The material is non-combustible (Euroclass A1 fire rating) and resists freeze-thaw cycles when properly formulated. Compressive strength varies from 0.5–15 MPa, suitable for non-structural to semi-structural applications.
Main Applications
In construction, cellular concrete is widely used for thermal insulation in walls and roofs, often as a substitute for polystyrene boards. Its flowability makes it ideal for filling underground voids, pipeline trenches, and abandoned tanks without excavation risks. Bridge abutments and highway embankments benefit from its lightweight nature to reduce settling. Prefabricated panels combining cellular concrete with reinforcement are gaining popularity for rapid building systems. Niche applications include acoustic barriers, fireproofing layers, and green roof substrates. Recent innovations include 3D-printable foam concrete mixes for complex geometries.
Safety and Storage
Uncured material requires standard cement handling precautions—gloves and eye protection to prevent alkaline burns. Dust control is critical during dry component mixing; NIOSH-approved N95 masks are recommended. The cured product is inert but generates silica dust during cutting, necessitating wet methods or ventilation. Pre-mixed dry components should be stored in sealed containers below 30°C with <60% humidity to prevent clumping. Liquid foaming agents typically have 6–12 month shelf lives. On-site foam generators require regular cleaning to prevent bacterial growth in protein-based agents.
B2B Procurement Guide
Commercial buyers should prioritize testing certifications like ASTM C796 (foaming agents) and EN 12390 (compressive strength). Key specifications include: dry density (±5% tolerance), 28-day compressive strength, and dimensional stability (shrinkage <0.15%). For large projects, consider on-site production equipment to reduce transport costs of low-density material. Regional availability of raw materials (e.g., fly ash) significantly impacts pricing. Sample testing under project-specific conditions (humidity, temperature) is strongly advised before bulk orders.
Related Manufacturers
- 主营：保温板、聚苯板、吸音板、防火材料、保温材料、水泥发泡板、挤塑板、岩棉板、保温管、橡塑板、硅酸铝、玻璃棉、陶粒售卖、轻质陶粒、陶粒知名、回填陶粒、陶粒建筑、外墙保温
- 主营：发泡混凝土、发泡沫混凝土、泡沫填充料、泡沫轻质土、气泡混合轻质土
- 主营：隔离带、保温板、泡沫玻璃板、发泡陶瓷板、水泥发泡板、发泡陶瓷保温、外墙装饰线条、建筑外墙屋顶、陶瓷保温装饰板
- 主营：水性防锈漆、防腐防锈水性漆、铁锈转化剂、隔音吸音材料、彩钢瓦翻新防锈漆、吸音阻燃涂料、外墙保温涂料、桥面防水、路桥防水、背水面防水、背水面补漏、外露型防水、红橡胶防水
- 主营：发泡陶瓷、泡沫玻璃、内置保温一体板
- 主营：发泡混凝土、泡沫混凝土、泡沫轻质土、气泡混合轻质土
- 主营：纤维增强硅酸盐防火板、硅酸钙板、防爆板、纤维水泥板、泄爆板、Loft钢结构楼层板、美岩板、冰火板、无机预涂板、栈道板、轻质复合隔墙板
- 主营：防水涂料、桥面防水涂料、屋面防水涂料、JS 聚合物水泥基防水涂料、水泥基渗透结晶防水涂料、FYT-1桥面防水涂料、道桥用防水涂料、聚氨酯防水涂料、橡胶防水涂料、PB II 聚合物改性沥青防水涂料、丙烯酸防水涂料、橡胶沥青防水涂料、透明防水涂料、外墙防水涂料、环氧沥青防水涂料、改性沥青防水涂料、聚合物改性沥青防水涂料、免砸砖透明防水胶、水性沥青基防水涂料、隔热防水涂料、聚脲防水涂料、水性渗透型无机防水剂、环氧树脂、防腐涂料、环氧彩砂自流平
- 主营：橡塑保温管、硅酸铝针刺毯、岩棉板、橡塑保温材料、硅酸盐纤维防火卷材、保温装饰一体板、纳米气凝胶毡、钢骨架轻型屋面板、天基板、钢骨架轻型板、酚醛板、防水透气膜、聚氨酯管壳、泡沫玻璃板、挤塑板、岩棉管、玻璃棉管、硅酸铝管、石墨聚苯板、STP真空绝热板、玻璃棉卷毡、复合硅酸盐板、岩棉毡、离心玻璃棉板
- 主营：煤矿注浆料、防火涂料、煤矿加固料、煤矿水泥发泡材料、煤矿填充料
- 主营：聚丙烯纤维、纤维素纤维、玄武岩纤维、水泥砂浆纤维、短切玻璃纤维、聚酯纤维、抗裂纤维、聚乙烯醇纤维、增强抗裂纤维、聚丙烯网状纤维、菱形仿钢纤维、波浪形仿钢纤维、混凝土砂浆纤维、沥青路面纤维、钢纤维、仿钢纤维、玻璃纤维、工程纤维、塑料纤维、混凝土纤维、防裂纤维、合成纤维
- 主营：轻集料混凝土、陶粒混凝土、A型轻集料、LC5.0轻集料发泡、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、卫生间垫层、地面垫层、Lc7.5轻集料混凝土、轻骨料混凝土、屋面垫层用轻集料、聚氨酯颗粒轻骨料、干拌复合轻骨料、楼顶找平垫层、地面垫层屋面找坡、保温回填轻骨料、干拌轻集料LC5.0、找坡垫层轻质保温
- 主营：澎内传、固沙宝、永凝液、水泥基、防水材料、珠保温材料、水泥混凝土、保温隔热材料、防腐材料、防水剂、911聚氨酯、复合防腐、树脂防水、火仑建材、防水涂料、地下室防水、丙烯酸树脂、防水粘结剂、强力砂浆胶、甲基丙烯酸、珠保温隔热、三乙氧硅烷、混凝土表面、聚氨酯防水、纤维增强桥面
- 主营：防腐涂料、保温涂料、防水涂料、发泡水泥、防水卷材、无机硅声能凝胶、路桥防水涂料、金属防锈漆、隔热涂料、吸音涂料、补漏王、瓷砖胶、聚氨酯、隔音涂料
- 主营：发泡、防水涂料、隔音涂料、保温隔热涂料
- 主营：防水涂料、隔热保温涂料、家装补漏、通用型柔韧型防水材料、翻新隔热、防腐防水涂料、防水卷材、保温凝胶、路桥防水、吸音隔音涂料
- 主营：[]