Development of 3D printable engineered cementitious composites with ultra-high tensile ductility for digital construction
نویسندگان
چکیده
منابع مشابه
Engineered Cementitious Composites
This paper overviews Engineered Cementitious Composites (ECC) as an emerging construction material. Emphasis is placed on the accumulated knowledge on durability, safety, and sustainability of reinforced ECC (R/ECC) structures, recognizing that the concrete of the future must meet these characteristics. In light of recent and future full-scale field applications of ECC, the limited studies on l...
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Over the last decade, enormous strides have been made in creating engineered cementitious composites (ECC) with extreme tensile ductility, on the order of several hundred times that of normal concrete or fiber reinforced concrete (FRC). Current ECC investigations include load carrying structural members in new infrastructure systems, as well as for repair and retrofitting of existing structures...
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Today, ECC has been developed to a stage where the material is being used in eld testing and limited full scale constructed facilities. However, the lack of reliable, practical, standardized test methods for determination of the strain hardening properties of the material constitutes a signi cant obstacle for day-to-day structural engineering design and material quality control during construct...
متن کاملGeneral Design Assumptions for Engineered Cementitious Composites
The use of Engineered Cementitious Composites (ECC) for structural design requires a number of assumptions of the material, some of which can be drastically different from those suitable for normal concrete and tension-softening fiber reinforced concrete. This contribution focuses on design assumptions of the constitutive models of ECC in tension and compression. Specifically, while the tensile...
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In this paper, the sorption isotherm and the hygral deformation of a tensile strain-hardening fiber reinforced engineered cementitious composite (ECC) is described using a physical model. The influence of using a low alkali content Portland cement on the physical mechanisms of drying shrinkage is discussed. From a durability point of view the crack width of a material as a result of restrained ...
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ژورنال
عنوان ژورنال: Materials & Design
سال: 2019
ISSN: 0264-1275
DOI: 10.1016/j.matdes.2019.108088