Advanced cement based nanocomposites reinforced with MWCNTs and CNFs

作     者：Emmanuel E. GDOUTOS Maria S. KONSTA-GDOUTOS Panagiotis A. DANOGLIDIS Surendra P. SHAH 

作者机构：Department of Civil Engineering Democritus University of Thrace GR 671 O0 Xanthi Greece Northwestern University Evanston IL 60208 USA 

出 版 物：《Frontiers of Structural and Civil Engineering》 (结构与土木工程前沿（英文版）)

年 卷 期：2016年第10卷第2期

页      面：142-149页

核心收录：

学科分类：1305[艺术学-设计学（可授艺术学、工学学位）] 07[理学] 08[工学] 070205[理学-凝聚态物理] 081304[工学-建筑技术科学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 0814[工学-土木工程] 0702[理学-物理学] 

基　　金：support of the National Strategic Reference Framework (NSRF) Research Funding Program funded by the European Union (European Social Fund-ESF) Greek national funds through the Operational Program 

主　　题：multi-walled carbon nanotubes carbon nanofibers mortars toughness Young's modulus 

摘      要：Cementitious materials reinforced with well dispersed multiwall carbon nanotubes （MWCNTs） and carbon nanofibers （CNFs） at the nanoscale were fabricated and tested. The MWCNTs and CNFs were dispersed by the application of ultrasonic energy and the use of a superplasticizer. Mechanical and fracture properties including flexural strength, Young＇s modulus, flexural and fracture toughness were measured and compared with similarly processed reference cement based mixes without the nano-reinforcement. The MWCNTs and CNFs reinforced mortars exhibited superior properties demonstrated by a significant improvement in flexural strength （106%）, Young＇s modulus （95%）, flexural toughness （105%）, effective crack length （30%） and fracture toughness （120%）.