Promising low cost carbon-based materials to improve strength and toughness in cement composites

被引：105

作者：

Restuccia, Luciana ^{[1
]}

Ferro, Giuseppe Andrea ^{[1
]}

机构：

[1] Politecn Torino, Dept Struct Geotech & Bldg Engn, Corso Duca Abruzzi 24, I-10129 Turin, Italy

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2016年 / 126卷

关键词：

Carbon nanoparticles; Nano-aggregates; Agro-food waste; Cement-based composites; Mechanical properties; Toughening mechanism; Fracture energy; Ductility; MECHANICAL-PROPERTIES; MICROSTRUCTURE; NANOTUBES; PERFORMANCE; NANO-SIO2; BEHAVIOR; MORTAR;

D O I：

10.1016/j.conbuildmat.2016.09.101

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The Bio-char, the solid sub-product of pyrolysis process, has several applications in the cement and concrete green technology. In this research, the utilization of Bio-char such as nanoparticles has been analysed. Two types of pyrolyzed agro-food waste, coffee powder and hazelnut shells, have been investigated as carbon nano-aggregates, in different percentages of addition with respect to the weight of the cement. Results have demonstrated that small amount of both pyrolyzed materials improves the mechanical properties of cementitious composites, as they are capable of increasing not only the flexural and compressive strength, but also the fracture energy with a more tortuous crack path which increases the final fracture surface. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：1034 / 1043

页数：10

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