【作者】 王鹏； 王培铭；

【Author】 WANG Peng;WANG Peiming;China Airport Construction Group Corporation;Beijing Super-Creative Technology Co.Ltd;School of Material Science and Engineering,Tongji University;

【机构】 中国民航机场建设集团公司； 北京中企卓创科技发展有限公司； 同济大学材料科学与工程学院；

【摘要】 纤维素醚可以显著影响砂浆的孔结构进而影响砂浆的压力水渗透性,而水是造成砂浆性能劣化的重要因素,本文采用改进型Karz-Thompson渗透理论确定了纤维素醚改性砂浆相对渗透系数与闭口孔隙率的关系,认为纤维素醚改性砂浆压力水渗透性的降低是因为纤维素醚向砂浆中引入了大量闭口孔,增加了孔隙的曲折度,降低了孔网络体系的连通性。更多还原

【Abstract】 Cellulose ether can significantly influence the pore structure of mortar,and thus influence pressure water penetration of mortar.While water is the important factor that causes the deterioration of the performance of the mortar.In this paper,we introduce the improved Karz—Thompson theory to study the relationship between relative permeability coefficient and closed porosity.Cellulose ether can introduce a large amount of closed pores which increase the sinuosity,decrease the connectivity of the pore network system,and decrease the pressure water penetration.更多还原