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高活性偏高岭土简介：
偏高岭土是以高岭土矿石为原料，经过选矿-破碎—磨矿—煅烧等工序制作而成，是一种具有高火山灰活性的物质，主要成分是无定型的Al2O3和SiO2。主要应用领域在混凝土行业，也叫做高性能混凝土矿物外加剂。
Introduction of high active metakaolin:
metakaolin is made from kaolin ore as raw material, after processing, crushing, grinding and calcination. It is a substance with high pozzolanic activity. Its main components are amorphous Al2O3 and SiO2. The main application field is in the concrete industry, also called the high performance concrete mineral admixture.
偏高岭土产品的成分和性能：
|
SiO2 |
Al2O3 |
Fe2O3 |
TiO2 |
CaO |
MgO |
K2O |
Na2O |
||
|
54-55 |
43-44 |
＜0.5 |
＜0.2 |
＜0.1 |
＜0.05 |
＜0.5 |
＜0.05 |
||
|
细度 |
1250目 |
活性指数 |
≥110 |
||||||
偏高岭土的用途：
凡是使用硅酸盐水泥的产品中，都能用得上偏高岭土，能否真正得到应用，主要看性能价格比。依据初步研究和应用实践，以下产品中可以使用偏高岭土产品。
1、高性能混凝土矿物外加剂，例如预应力混凝土、轻质混凝土、高强度混凝土、修复混凝土等。
2、特种砂浆外加剂，例如保温砂浆、防水砂浆、粘结砂浆、抹面砂浆、外墙防水腻子、单双组份聚合物水泥防水砂浆、修复砂浆、自流平砂浆等。
3、聚合物水泥防水浆料、双组份聚合物改性陶瓷耐磨地坪涂料等。
4、生产地质聚合物的原料，例如地质聚合物涂料、地质聚合物注浆材料、地质聚合物仿瓷砖材料、地质聚合物水泥、地质聚合物人造大理岩等。
5、耐火材料添加剂。
6、聚氨酯防水涂料的填料。
7、合成分子。。
8、橡胶填料、塑料填料、电缆填料、油漆填料.
9、白（彩）色水泥的矿物外加剂等。
Use of metakaolin:
All the products that use Portland cement can be used in the metakaolin, and whether they can be applied really depends on the ratio of performance and price. According to the preliminary research and application practice, the products of the metakaolin can be used in the following products.
1, high performance concrete mineral admixture, such as prestressed concrete, lightweight concrete, high strength concrete, repair concrete and so on.
2, special mortar admixtures, such as insulation mortar, waterproof mortar, adhesive mortar and plaster mortar, waterproof wall putty, single two-component polymer cement waterproof mortar, repairing mortar, self leveling mortar etc..
3, polymer cement waterproof slurry, double component polymer modified ceramic wear-resistant floor coating and so on.
4, raw materials for geopolymer production, such as geopolymer coatings, geopolymer grouting materials, geopolymer imitated tile materials, geopolymer cement, geopolymer, artificial marble and so on.
5. Refractory material additives.
6. The filler of polyurethane waterproof coating.