Overview
Construction-grade lime powder, primarily calcium hydroxide (Ca(OH)₂), is produced by slaking quicklime (CaO) with controlled amounts of water. This centuries-old building material remains essential in modern construction for its binding properties and pH-adjustment capabilities. Industrial production involves precise hydration processes to achieve optimal particle fineness (typically 200-400 mesh). The powder's reactivity makes it indispensable for traditional lime mortars and contemporary applications like acidic soil remediation in civil engineering projects.
Physical and Chemical Properties
The powder exhibits strong alkalinity (pH ~12.4 in saturated solution) and undergoes carbonation when exposed to atmospheric CO₂, gradually reverting to calcium carbonate. Its particle size distribution directly impacts workability in mortar mixes, with finer particles offering greater surface area for chemical reactions. Notably, lime powder demonstrates thixotropic behavior in slurry form, making it ideal for soil injection applications. The material's exothermic reaction during slaking requires careful temperature control during manufacturing to prevent premature aging of the product.
Main Applications
In masonry, lime powder serves as plasticizer in cement mixes, improving workability and reducing shrinkage cracks. Modern applications include stabilization of expansive clay soils (3-8% lime content by weight) and flue gas desulfurization in industrial plants. The agricultural sector utilizes lime powder for pH adjustment of acidic soils (typically 1-2 tons/acre), while water treatment plants employ it for phosphorus removal and heavy metal precipitation. Emerging uses include limecrete flooring and eco-friendly plasters in sustainable construction.
Safety and Storage
As a Category II alkaline irritant, lime powder requires OSHA-compliant handling with NIOSH-approved N95 respirators during bulk transfer operations. Storage silos must incorporate moisture barriers and temperature monitoring to prevent lump formation. First aid measures include 15-minute flushing with water for eye contact and immediate removal of contaminated clothing. Bulk storage facilities should maintain relative humidity below 60% and implement dust collection systems to mitigate explosion risks (minimum explosive concentration: 30 g/m³).
B2B Procurement Guide
Professional buyers should specify EN 459-1 CL90-S or ASTM C207 Type S standards for construction applications. Key evaluation metrics include available lime index (ALI) ≥90% and unhydrated oxide content ≤2%. Bulk procurement (20+ ton loads) typically offers 15-30% cost savings versus bagged product. Just-in-time delivery arrangements are recommended to minimize storage duration. Quality verification should include onsite slump tests for mortar applications and titration analysis for purity confirmation.
Related Manufacturers
- 主营：干燥粉、生石灰粉、氧化钙、营养补充剂、环氧胶黏剂
- 主营：高岭土、铝矾土、炉衬料、高铝粉、石英粉、长石粉、玻璃粉、矿渣粉、重晶石粉、钙粉、石英砂、高铝砂、电熔镁砂、锆英砂、金刚砂、彩砂、重金石
- 主营：耐火浇注料、酸性炉衬材料、高效除渣剂、铝矾土高铝细粉、导电粉、电气石托玛琳粉、重晶石硫酸钡粉、橡胶颗粒粉、石英沙石英粉、石墨化增碳剂、透热炉打结料、线圈胶泥、中性炉衬材料、中间包可塑料、打炉料、干振料、刚玉炉衬料、硅藻土、膨润土、蛭石、高岭土、绿泥白泥修补料、凹凸棒土、重质轻质碳酸钙、雨花石炉料
- 主营：氧化钙、吸收剂、氢氧化鑫安、灰钙粉、石灰粉、高纯氧化钙粉末、消解熟石灰、块状生石灰原料、工业氢氧化钙粉、脱硫用生石灰、水处理熟石灰粉、活性轻质碳酸钙、纳米轻质碳酸钙、超白活性轻质碳酸、超白轻质碳酸钙、氢氧化钙颗粒、氧化钙颗粒、优质氢氧化钙、优质氧化钙、优质氢氧化钙颗粒、优质氧化钙颗粒、二氧化碳吸附剂、氢氧化钙颗粒料、高活性氧化钙、高活性氢氧化钙
- 主营：碳酸钙、石英砂、金刚砂、滑石粉、矿粉、微硅粉、染色砂、陶瓷球、高岭土、鹅卵石
- 主营：膨润土、云母、云母岩片、生石灰氧化钙、熟石灰氢氧化钙、碳酸钙粉、滑石粉、玻璃粉、木粉、电气石粉、锗石粉、珍珠岩、蛭石、硅藻土、玻璃砂、陶瓷球、陶瓷砂、铝矾土、海泡石、木质纤维、橡胶颗粒、轮胎颗粒、石英砂、白云石
- 主营：金刚砂、氧化钙、轻质碳酸钙、生石灰、轻钙粉、重钙粉、河沙建筑河沙、重钙碳酸钙、鹅卵石滤料、造景火山石、重质碳酸钙、彩色雨花石、水处理鹅卵石
- 主营：氧化钙、氢氧化钙、氧化钙块料、氧化钙粉料、石灰石、高纯度熟石灰、细粉熟石灰、低杂质熟石灰、轻质熟石灰、散装熟石灰、食品级熟石灰、土壤改良熟石灰、化工熟石灰、氧化钙颗粒、200目氢氧化钙、400目氢氧化钙、超细氢氧化钙、块状氢氧化钙、无尘氢氧化钙、工业级氢氧化钙、烟气脱硫氢氧化钙、高纯度氢氧化钙、废水处理氢氧化钙、高白度氢氧化钙、块料氧化钙
- 主营：白灰、多孔红砖、红砖、生石灰、沙子、水泥、石子、加气块
- 主营：高岭土、硅藻土、氢氧化钙、工业级生石灰、暖宝宝专用蛭石、熟石灰、滑石粉、沸石粉、铸石粉、海泡石粉、透明粉、硅酸铝粉、贝壳粉、矿粉、石灰石粉、碳酸钙、膨润土、氧化钙、轻钙、海泡石纤维、水镁石、金玉明砂、彩砂、浴沙、灰钙
- 主营：硫酸亚铁、聚丙烯酰胺、聚合氯化铝、石灰、漂白粉、活性炭、纯碱、片碱、次氯酸钠、醋酸钠、硫酸铝、焦亚硫酸钠、消泡剂、水玻璃、柠檬酸、葡萄糖
- 主营：云母、蛭石、石英砂、滑石粉、锗石粉、木粉、彩砂、海泡石、电气石、岩片、珍珠岩、白云石、氧化钙、氢氧化钙、碳酸钙、玻璃块、陶瓷球、生物燃烧颗粒、高岭土、膨润土、铝矾土、松针土、红土
- 主营：氧化钙、碳酸钙、方解石、生石灰、消石灰、熟石灰、石灰石粉、白灰
- 主营：橡胶涂料、氢氧化钙、煅烧高岭土、滑石粉、生石灰粉、保温隔热用木粉、钢渣、海泡石纤维、高岭土、膨润土
- 主营：熟石灰、粉末颗粒、墙面找平石灰块、筑粘合剂