CAJ | 학술논문

根据结晶诱导、超细粉体、化学激发等效应,通过抗压强度测试、XRD、热重、SEM等分析手段对大掺量粉煤灰的硫铝酸盐水泥进行了研究。实验结果表明,引入增强组分M后,试块2 h、3,7,28 d 最高抗压强度分别提高了140％,116％,80％和60％；钙矾石及铝胶生成量增多,体系变的更致密,2h 就能达很高强度；M的引入,可能使钙矾石初始结晶度变差；随养护龄期的延长,钙矾石结晶度逐渐变好,M促使粉煤灰参与后续水化反应,使粉煤灰颗粒被水化物紧密包裹,体系变得更致密,试块后期强度变大。
근거결정유도、초세분체、화학격발등효응,통과항압강도측시、XRD、열중、SEM등분석수단대대참량분매회적류려산염수니진행료연구。실험결과표명,인입증강조분M후,시괴2 h、3,7,28 d 최고항압강도분별제고료140％,116％,80％화60％；개반석급려효생성량증다,체계변적경치밀,2h 취능체흔고강도；M적인입,가능사개반석초시결정도변차；수양호령기적연장,개반석결정도축점변호,M촉사분매회삼여후속수화반응,사분매회과립피수화물긴밀포과,체계변득경치밀,시괴후기강도변대。
The composite cement of flyash and sulphatealuminium cement was studied by compressive strength XRD TG and SEM on the basis of induced crystallization effect particle effect and priming effect,etc.The re-sults show that,after adding M,the compressive strength of 2 h,3,7 and 28 d have improved 140%,116%, 80% and 60% respectively;more AFt and alumina gel are produced in early age and samples become more com-pactness;early phase crystalline forms of AFt may get poor;with the prolong of hydration time,crystalline forms of AFt improves,flyash participates in the send hydration reaction and is tightly binded by its hydration products,the system gets more compactness,so the long-term strength increases.