Mechanical properties and deformation behaviour of early age concrete in the context of digital construction
Source abstract
Abstract
Abstract Digital construction is gradually opening unlimited possibilities for building and concrete industry. The key secret for a robust print process lies in our understanding of the processing technology and material fresh properties, in addition to developing novel measurement and control techniques. This paper aims to gain a better understanding of early age mechanical properties of 3D printable materials and improve it for the requirement of large scale concrete printing. Experimental investigations were carried out to measure green strength and stiffness of fresh fly ash-cement mortar with applied 3D optical metrology. The compressive green strength was linked with material yield strength evolution and later, modified with nanoclay for higher buildability properties. Nanoclay addition deceased the layer deformation due to significant increase in Young's modulus and to estimate this uncontrolled deformation, a mathematical function was formulated, which subsequently validated by comparison to printing experiments.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Innovations in Concrete and Construction Materials · Additive Manufacturing and 3D Printing Technologies · Building materials and conservation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (36)
Show source-provided references
1. 3D printing trends in building and construction industry: a review10.1080/17452759.2017.1326724 ↗
2. Additive manufacturing of concrete in construction: potentials and challenges of 3D concrete printing10.1080/17452759.2016.1209867 ↗
3. Additive manufacturing (3D printing): a review of materials, methods, applications and challenges10.1016/j.compositesb.2018.02.012 ↗
4. Construction by Contour Crafting using sulfur concrete with planetary applications10.1108/RPJ-11-2015-0165 ↗
5. Improving flexural characteristics of 3D printed geopolymer composites with in-process steel cable reinforcement10.1016/j.conbuildmat.2018.05.010 ↗
6. Insights into material design, extrusion rheology, and properties of 3D-printable alkali-activated fly ash-based binders10.1016/j.matdes.2019.107634 ↗
7. Mix design and fresh properties for high-performance printing concrete10.1617/s11527-012-9828-z ↗
8. Investigation of the rheology and strength of geopolymer mixtures for extrusion-based 3D printing10.1016/j.cemconcomp.2018.10.002 ↗
9. Printability, accuracy and strength of geopolymer made using powder-based 3D printing for construction applications10.1016/j.autcon.2019.01.013 ↗
10. Investigation of infiltration rate for soil-biochar composites of water hyacinth
11. Experimental study on mix proportion and fresh properties of fly ash based geopolymer for 3D concrete printing10.1016/j.ceramint.2018.03.031 ↗
12. Developing and testing of strain-hardening cement-based composites (SHCC) in the context of 3D-printing10.3390/ma11081375 ↗
13. Anisotropic mechanical performance of 3D printed fiber reinforced sustainable construction material10.1016/j.matlet.2017.07.123 ↗
14. Additive manufacturing of geopolymer for sustainable built environment10.1016/j.jclepro.2017.08.165 ↗
15. Measurement of tensile bond strength of 3D printed geopolymer mortar10.1016/j.measurement.2017.08.051 ↗
16. Time gap effect on bond strength of 3D-printed concrete10.1080/17452759.2018.1500420 ↗
17. On the early-age behavior of zero-slump concrete10.1016/j.cemconres.2011.11.007 ↗
18. Using fly ash, clay, and fibers for simultaneous improvement of concrete green strength and consolidatability for slip-form pavement10.1061/(ASCE)0899-1561(2010)22:2(196) ↗
19. Early age mechanical behaviour of 3D printed concrete: numerical modelling and experimental testing10.1016/j.cemconres.2018.02.001 ↗
20. Green and early age compressive strength of extruded cement mortar monitored with compression tests and ultrasonic techniques10.1016/j.cemconres.2005.09.005 ↗
21. Jacques Harb, and Yara Maalouf. "Measurement of yield stress of cement pastes using the direct shear test10.1016/j.jnnfm.2014.10.009 ↗
22. Correlation between destructive compression tests and non-destructive ultrasonic measurements on early age 3D printed concrete10.1016/j.conbuildmat.2018.06.060 ↗
23. Rheological requirements for printable concretes10.1016/j.cemconres.2018.04.005 ↗
24. Rheological behavior of high-volume fly ash mixtures containing micro silica for digital construction application10.1016/j.matlet.2018.11.131 ↗
25. Direct shear test for the assessment of rheological parameters of concrete for 3D printing applications10.1617/s11527-019-1322-4 ↗
26. Improving the 3D printability of high-volume fly ash mixtures via the use of nano attapulgite clay10.1016/j.compositesb.2018.11.109 ↗
27. Characteristics of nanoclay and calcined nanoclay-cement nanocomposites10.1016/j.compositesb.2015.03.074 ↗
28. A simplified probabilistic analysis of water content and wilting in soil vegetated with non-crop species10.1016/j.catena.2018.12.016 ↗
29. From mini-cone test to Abrams cone test: measurement of cement-based materials yield stress using slump tests10.1016/j.cemconres.2004.07.032 ↗
30. Structural deflection measurement with a range camera10.1061/(ASCE)SU.1943-5428.0000074 ↗
31. Robust intrinsic and extrinsic calibration of rgb-d cameras
32. The transition from ductile flow to brittle failure in unsaturated soils10.1006/jaer.1993.1024 ↗
33. Structural built-up of cement-based materials used for 3D-printing extrusion techniques10.1617/s11527-015-0571-0 ↗
34. Study of the mechanisms underlying the fresh-state response of cementitious materials modified with nanoclays10.1016/j.conbuildmat.2012.06.057 ↗
35. Influence of clays on the rheology of cement pastes10.1016/j.cemconres.2009.11.001 ↗
36. Hydration and rheology control of concrete for digital fabrication: potential admixtures and cement chemistry10.1016/j.cemconres.2018.05.014 ↗