CAJ | 학술논문

本文介绍了微膨胀补偿收缩混凝土在长春中央商务区地下空间工程的技术应用，通过在普通水泥混凝土中适量掺加混凝土膨胀剂，通过水化作用产生限制膨胀率抵消部分混凝土所产生的收缩，其膨胀晶体随着水化作用不断填充混凝土空隙，提高了混凝土自身抗渗能力，其膨胀作用在结构的限制钢筋等临位限制条件下建立自应力，大大提高了混凝土自身的抗裂能力，利用混凝土中膨胀能的变化，通过设置膨胀加强带可连续或间歇浇注混凝土，取代后浇带施工，加快施工进度。
본문개소료미팽창보상수축혼응토재장춘중앙상무구지하공간공정적기술응용，통과재보통수니혼응토중괄량참가혼응토팽창제，통과수화작용산생한제팽창솔저소부분혼응토소산생적수축，기팽창정체수착수화작용불단전충혼응토공극，제고료혼응토자신항삼능력，기팽창작용재결구적한제강근등림위한제조건하건립자응력，대대제고료혼응토자신적항렬능력，이용혼응토중팽창능적변화，통과설치팽창가강대가련속혹간헐요주혼응토，취대후요대시공，가쾌시공진도。
This article describes the micro-expansion shrinkage-compensation concrete in the central business district of Changchun station.By adding an appropriate amount of Portland cement concrete expansion,and by hydration producing limit expansion to offset the contractionay part of the concrete produced,with its expanded crystal hydration continue to fill the void of concrete,improving the concrete itself impermeability.Its expanded role in the establishment of self-stress in the structure,steel and other ortho restrictions,greatly improving the crack resisitance of the concrete itself.Using changes of concrete expansion capacity,by proving expansion reinforcingtape continuously or intermittently pouring concrete,after pouring substitued with construction,speed up the construction progress.