《结构与土木工程前沿（英文）》
>> 2016年
第10卷
第2期
doi:
10.1007/s11709-016-0342-1
RESEARCH ARTICLE
Advanced cement based nanocomposites reinforced with MWCNTs and CNFs
1. Department of Civil Engineering, Democritus University of Thrace, GR 671 00 Xanthi, Greece.2. Northwestern University, Evanston, IL 60208, USA
录用日期：
2016-04-08
发布日期：
2016-05-11
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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%).
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