摘要
试验研究了超高韧性水泥基复合材料(UHTCC)与混凝土间的粘结抗折性能,分析了6种粗糙度的粘结面、4种强度等级的混凝土及5种界面处理剂影响因素。试验结果表明,粘结抗折强度随界面粗糙度、混凝土强度的增加而增大,使用粉煤灰硅灰改性水泥净浆和丁苯净浆处理剂能显著提高UHTCC材料与混凝土间的粘结抗折强度。
The bond bending strength between ultrahigh toughness cementitious composites（UHTCC） and concrete substrate is studied in this paper.The influencing factors including six types of surface roughness,four types of strength grade of concrete substrate and five types interface bonding agent are analyzed.The test results show that the bond bending strength increases with the increasing surface roughness and the compressive strength of concrete substrate.It is also found that cement with fly ash and silica fume and the styrene-butadiene latex can greatly improve bond bending behavior between UHTCC and concrete substrate.
出处
《水电能源科学》
北大核心
2010年第12期74-76,共3页
Water Resources and Power
基金
国家自然科学基金资助重点项目(50438010)
南水北调工程建设重大关键技术研究及应用基金资助项目(JGZXJJ2006-13)
关键词
粘结抗折强度
超高韧性水泥基复合材料
界面粗糙度
混凝土强度
界面处理剂
bond bending strength
ultrahigh toughness cementitious composite material
surface roughness
concrete strength
interface bonding agent
