脱硫石油焦渣加气混凝土的耐久性研究  

The research on durability of petroleum coke desulfuration residues aerated concrete

作　　者：姜辉[1] 李秋义[1] 岳公冰[1] 于春志 

机构地区：[1]青岛理工大学土木工程学院,山东青岛266033

出　　处：《新型建筑材料》2014年第2期45-47,共3页New Building Materials

基　　金：国家"十二五"科技支撑计划项目(2011BAJ04B05-05);山东省高校优秀科研创新团队计划

摘　　要：利用石灰与脱硫石油焦渣按一定的比例混合粉磨制备出加气混凝土用钙质材料,并将其称为复合石灰。以某加气混凝土厂的实际配合比(简称工厂配比)为基础,利用复合石灰分别按照工厂配比中石灰用量的95%、100%、105%、110%和120%全部取代工厂配合比中的石灰和石膏,制备的加气混凝土称为脱硫石油焦渣加气混凝土。依据GB/T 11969—2008《蒸压加气混凝土性能试验方法》,研究不同取代率加气混凝土的干燥收缩性、抗冻性和碳化稳定性。试验结果表明,在一定范围内,用脱硫石油焦渣取代石灰和石膏制备的加气混凝土,能够符合标准规定的强度和耐久性要求,当复合石灰取代率为110%时制备的脱硫石油焦渣加气混凝土性能最优。The calcareous materials used in aerated concrete prepared by mixing and grinding desulfuration petroleum coke residues and lime slag with a certain percentage were called composite lime. Based on the actual mix proportion in an aerated con- crete plant （＂factory mix ratio＂ for short）,preparing aerated concrete （called petroleum coke desulfuration residues aerated concrete） with composite lime instead of all of the lime and gypsum in the factory mix ratio respectively according to the lime dosage of 95%, 100%, 105%, 110% and 120%. Researching on dry shrinkage,frost resistance and stability of carbide of aerated concrete products of different replacement rate,according to the standard test method GB/T 11969---2008. Result showed that strength and durability of the aerated concrete with petroleum coke desulfuration residues instead of some lime and gypsum might meet the standard requirements, and performance of the aerated concrete products is the best when the composite lime replacement ratio is 110%.

关 键 词：脱硫石油焦渣 复合石灰 取代率 加气混凝土 耐久性 

分 类 号：TU528.2[建筑科学—建筑技术科学]