The Properties of the Carbonated Brick Made of Steel Slag-slaked Lime Mixture  

作　　者：曹伟达 杨全兵 

机构地区：[1]Key Laboratory of Advanced Civil Engineering Materials of the Ministry of Education, Tongji University

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2015年第2期250-255,共6页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the"Eleventh Five-year Plan"for Sci&Tech Research of China(NO.2006BAF02A24)

摘　　要：The properties of the carbonated brick made of steel slag-slaked lime mixture such as strength, drying shrinkage, water absorption and soundness were mainly investigated. The experimental results indicate that, after carbonation, the strength of the brick increases, its drying shrinkage reduces, and its soundness becomes eligible. The optimal slaked lime/steel slag（SL/SS） ratio for the carbonated brick is 0.2 and the asprepared brick meets the requirements of the Chinese standard for MU20-grade building bricks, additionally, it also demonstrates prominent environmental benefits. The XRD and pore structure analyses indicate that the excellent properties of this carbonated brick are attributed to the formation of carbonate crystals and the dense structure due to the carbonation.The properties of the carbonated brick made of steel slag-slaked lime mixture such as strength, drying shrinkage, water absorption and soundness were mainly investigated. The experimental results indicate that, after carbonation, the strength of the brick increases, its drying shrinkage reduces, and its soundness becomes eligible. The optimal slaked lime/steel slag（SL/SS） ratio for the carbonated brick is 0.2 and the asprepared brick meets the requirements of the Chinese standard for MU20-grade building bricks, additionally, it also demonstrates prominent environmental benefits. The XRD and pore structure analyses indicate that the excellent properties of this carbonated brick are attributed to the formation of carbonate crystals and the dense structure due to the carbonation.

关 键 词：building brick steel slag lime property chemical carbon sequestration 

分 类 号：TU522.1[建筑科学—建筑技术科学]