Materials and Structures· 2015Q1
Structural built-up of cement-based materials used for 3D-printing extrusion techniques
- 926citations
- Q1SCImago
- 2015year
Short summary
A theoretical framework and experimental validation show that optimizing the rate of layer-by-layer construction in 3D-printed cement-based materials depends on matching the material's increasing mechanical strength (structural build-up) to the load of subsequent layers.
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Key points
- 3D printing of cement-based materials requires materials to harden sufficiently to support subsequent layers.
- Structural build-up (increasing mechanical strength over time) is a key property for layer-by-layer construction.
- A theoretical framework was developed to optimize the building rate.
- The framework was experimentally validated on a layer-wise built column.
AI-generated from the title and abstract; the full text is not read.
Abstract
Additive manufacturing and digital fabrication bring new horizons to concrete and cement-based material construction. 3D printing inspired construction techniques that have recently been developed at laboratory scale for cement-based materials. This study aims to investigate the role of the structural build-up properties of cement-based materials in such a layer by layer construction technique. As construction progresses, the cement-based materials become harder with time. The mechanical strength of the cement-based materials must be sufficient to sustain the weight of the layers subsequently deposited. It follows that the comparison of the mechanical strength, which evolves with time (i.e. structural build-up), with the loading due to layers subsequently deposited, can be expected to provide the optimal rate of layer by layer construction. A theoretical framework has been developed to propose a method of optimization of the building rate, which is experimentally validated in a layer-wise built column.
The authors' abstract, as published at the source. Materials and Structures, 2015 · DOI ↗
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Field: Building and Construction
Building and ConstructionEngineering