- 钱 强
2017年第11期
摘要
引用本文
摘 要:铸余渣主要含有C2S、C3S及少量铝酸盐和玻璃质,粒度小于1mm的铸余渣占比为53.11%,通过10mm过筛可获得41%的铸余渣尾粉。在水泥预粉磨中外掺6%的铸余渣,粉磨过程没有出现“饱磨返料”的现象,表明其易磨性较好,但粉磨产量下降4t/h,因此,单独粉磨铸余渣经济性不佳,需搭配各类混合材共同粉磨。在水泥中外掺6%的铸余渣后各项指标满足GB175—2007《通用硅酸盐水泥》。将铸余渣用于替代28%的磷渣微粉后的强度均有所降低,但后期强度可满足GB/T14902—2012《预拌混凝土》的使用要求。Abstract:ThecastingresiduemainlycontainsC2SandC3S,asmallamountofaluminatesandglass.Theratioofcastingresiduetograinsizelessthan1mmis53.11%,and41%ofthetailingspowdercanbeobtainedby10mmscreeningof.Incastingslagcementpregrindingandgrindingprocesswith6%,no"returnsaturation"phenomenon,showitsgoodgrindability,butthegrindingproductiondeclines4t/hours,soseparategrindingslaghasthepooreconomy,whichneedsallkindsofcollocationmixedmaterialgrindingtogether.Afteradding6%ofthecastingresiduetothecement,theindexesmeetGB175—2007GeneralPortlandCement.Thestrengthoftheslagusedtoreplacethe28%slagpowderhasbeenreduced,butthelaterstrengthstillmeetstherequirementsofGB/T14902—2012ReadyMixedConcrete.
钱强.炼钢铸余渣回收及综合利用研究[J].混凝土与水泥制品,2017(11):91-94.
QIAN Q.Research on Recovery and Comprehensive Utilization of Steelmaking Refining Slag[J].China Concrete and Cement Products,2017(11):91-94.