Thick steel structure fireproof coating agent and preparation method thereof: Fid-Bau Portal

Thick steel structure fireproof coating agent and preparation method thereof

ZHANG GUANGYONG / LIU GAN

The invention relates to the technical field of fireproof coatings, and discloses a thick type steel structure fireproof coating agent and a preparation method thereof, and the thick type steel structure fireproof coating agent comprises the following raw materials by weight: 35-45 parts of Portland cement; 20 to 25 parts of light calcium carbonate; 2 to 5 parts of sepiolite; 5 to 10 parts of mica; 20 to 25 parts of expanded vermiculite; 8 to 10 parts of expanded perlite; 0.2 to 0.5 part of glass fiber; the invention relates to a thermal insulation mortar which comprises the following components in parts by weight: 1 part of Portland cement, 1 part of sepiolite, 0.1-0.5 part of an adhesive, the Portland cement adopts I-type Portland cement, the sepiolite adopts light gray sepiolite, the mica adopts columnar crystal mica, and the expanded perlite adopts one of perlite, pitchstone and obsidian. According to the fireproof coating agent for the thick steel structure and the preparation method, the Portland cement, the light calcium carbonate, the sepiolite, the mica, the expanded vermiculite, the expanded perlite, the glass fibers and the binder are added, so that the prepared fireproof coating is small in heat conductivity, is a very good heat-insulating and fireproof material, and is good in adhesion, water resistance and impermeability at the same time.

本发明涉及防火涂料技术领域，且公开了一种厚型钢结构防火涂料剂及制备方法，包括以下重量份数配比的原料：硅酸盐水泥：35‑45份；轻质碳酸钙：20‑25份；海泡石：2‑5份；云母：5‑10份；膨胀蛭石：20‑25份；膨胀珍珠岩：8‑10份；玻璃纤维：0.2‑0.5份；粘结剂：0.1‑0.5份，所述硅酸盐水泥采用Ⅰ型硅酸盐水泥，所述海泡石采用呈浅灰色的海泡石，所述云母采用呈柱状晶形的云母，所述膨胀珍珠岩采用珍珠岩、松脂岩和黑曜岩三种的其中一种即可。该厚型钢结构防火涂料剂及制备方法，通过加入硅酸盐水泥、轻质碳酸钙、海泡石、云母、膨胀蛭石、膨胀珍珠岩、玻璃纤维、粘结剂可以使制备得到防火涂料热导率小，是一个很好的隔热、耐火材料，同时在粘接性、耐水抗渗性能良好。

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