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堿礦渣水泥基鋼結構防火塗料的制備及其性能研

作者:曹勇

關鍵字:堿,礦渣,水泥,基,鋼結構,防火塗料,的,制備,

 
(太原市建設工程質量監督站,山西 太原  030009)
摘要:在以礦渣、膨脹蛭石、膨脹珍珠岩、氫氧化鎂、氫氧化鋁等為主要原料制備堿礦渣水泥基鋼結構防火塗料(JKS)的基礎上,引入以P·O42.5水泥為基料的防火塗料(PGJ)作為對比,采用小室法對2種塗料的幹密度、抗壓強度、粘結強度等性能進行對比。結果表明,JKS塗料的抗壓強度、粘結強度和耐火極限均優于PGJ塗料。JKS塗料中的礦堿渣水泥比普通矽酸鹽水泥具有一定優勢,其基本性能符合GB 1497—2002《鋼結構防火塗料》要求。
關鍵詞:礦堿渣水泥;防火塗料;粘結強度;抗壓強度
中圖分類号:TU54+5        文獻标識碼:A        文章編号:1001-702X(2019)07-0154-04
 
Study on preparation and properties of fireproof coating for alkali slag cement based steel structure
CAO Yong
(Taiyuan Supervision Station of Construction Project Quality,Taiyuan 030009,China)
Abstract:Based on JKS coating prepared from slag,expanded vermiculite,expanded perlite, magnesium hydroxide and aluminum hydroxide and other materials,the ordinary P·O42.5 cement based water resistive coating(PGJ) was introduced as a
comparison,and the performances of dry density,compressive strength and bond strength of the above two coatings were compared by the chamber method. The results show that the compressive strength,bond strength and fire resistance of JKS coatings are better than ordinary cement coatings(PGJ). The mineral alkali slag cement in JKS coating has certain advantages over ordinary Portland cement,in terms of basic performance,it can meet the requirements of GB 1497—2002 "Fire resistive coating for steel structure".
Key words:mineral alkali slag cement,fire resistive coating,bonding strength, compressive strength