Properties of 3D-printed fiber-reinforced Portland cement paste

被引:323
作者
Hambach, Manuel [1 ]
Volkmer, Dirk [1 ]
机构
[1] Univ Augsburg, Chair Solid State & Mat Chem, D-86159 Augsburg, Germany
关键词
3D-printing; Fiber reinforcement; Portland cement paste; Flexural strength; Fiber alignment; CALCIUM-PHOSPHATE; FLEXURAL STRENGTH; CARBON-FIBERS; BONE; BEHAVIOR; POSTCRACKING; CONCRETE; COMPOSITES; HYDROGELS; DESIGN;
D O I
10.1016/j.cemconcomp.2017.02.001
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
First insights into a 3D-printed composite of Portland cement paste and reinforcing short fibers (carbon, glass and basalt fibers, 3-6 mm) are presented, resulting in novel materials that exhibit high flexural (up to 30 MPa) and compressive strength (up to 80 MPa). Alignment of the fibers, caused by the 3D-printing process is observed, opening up the possibility to use the print path direction as a means to control fiber orientation within the printed structures. Apart from completely dense cementitious bodies, hierarchically structured bodies, displaying precisely adjusted macroporosity, are presented, the latter exhibiting a unique combination of strength and materials efficiency. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:62 / 70
页数:9
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