CAJ | 학술논문

高吸水树脂（SAP）被认为是一种非常具有前景的内养护材料，用于降低水泥基材料自收缩；考察了一系列具有不同吸液倍率、尺寸的SAP内养护材料对水泥基材料自收缩及强度的影响。试验结果发现：SAP抑制自收缩与自身吸液倍率和尺寸相关；SAP尺寸越大、吸液倍率越高，抑制自收缩效果越明显。另外，SAP的添加不会对强度带来负面影响；扫描电镜（SEM）结果显示，掺加SAP后会在水泥基体中形成球形的孔洞。
고흡수수지（SAP）피인위시일충비상구유전경적내양호재료，용우강저수니기재료자수축；고찰료일계렬구유불동흡액배솔、척촌적SAP내양호재료대수니기재료자수축급강도적영향。시험결과발현：SAP억제자수축여자신흡액배솔화척촌상관；SAP척촌월대、흡액배솔월고，억제자수축효과월명현。령외，SAP적첨가불회대강도대래부면영향；소묘전경（SEM）결과현시，참가SAP후회재수니기체중형성구형적공동。
Superabsorbent polymers (SAP) are considered as promising material for internal curing of cement-based materials.In this paper,SAP with different water absorption and size were selected to discuss their effect on autogenous deformation and strength of cement based materials.Results indicated that SAP with large-size and high-water absorption had positive effect on autogenous shrinkage reduc-tion.The influence of SAP on mechanical properties revealed that SPA seemed to have no negative effect on the strength.Scanning electron microscope(SEM) images showed that voids were formed in the hardening cement based materials.