CAJ | 학술논문

将纳米SiO2掺入聚合物改性砂浆，测试其工作性、凝结时间及力学性能，利用微量热仪分析纳米SiO2对聚合物改性水泥基材料水化放热特性的影响，通过扫描电镜分析其微观结构。研究表明，掺入纳米SiO2后，聚合物改性砂浆的流动度增大，水化速度加快，凝结时间缩短；界面结构和水泥石结构得到改善，抗压强度和抗折强度均有所提高。
장납미SiO2참입취합물개성사장，측시기공작성、응결시간급역학성능，이용미량열의분석납미SiO2대취합물개성수니기재료수화방열특성적영향，통과소묘전경분석기미관결구。연구표명，참입납미SiO2후，취합물개성사장적류동도증대，수화속도가쾌，응결시간축단；계면결구화수니석결구득도개선，항압강도화항절강도균유소제고。
The workability, setting time, and mechanical properties of polymer-modified mortar with nano-SiO2 were tested. The Influence of nano-SiO2 on hydration behavior of polymer-modified cement-based materials was studied using microcalorimetry. Microstructure was observed by scanning electron microscope. The test results show that the fluidity is improved, the hydration reactions of polymer modified cement-based materials are postponed, the setting time is shortened. The interface transition zone between aggregate and cement paste, and the hydration production structure are effectively improved.