Elastic modulus of self-compacting fibre reinforced concrete: Experimental approach and multi-scale simulation
Source abstract
Abstract
Evaluation of the elastic properties of self-compacting fibre-reinforced concrete is one of the primary concerns in civil and structural engineering. This paper investigates the elastic properties of self-compacting fibre-reinforced concrete with varying coarse aggregate and steel fibre content. Traditionally, the elastic properties of concrete are measured experimentally which incurs significant cost and time overhead. In this paper, a two-step homogenisation approach is proposed for predicting the elastic properties of self-compacting fibre-reinforced concrete. In the first step, the mortar, air voids and aggregates are homogenised based on mean-field homogenisation using the Mori-Tanaka model. X-ray computed tomography (CT) scanning technique was employed to analyse and determine the volume fractions, shapes, numbers of pores for validation purposes. In the second step, a finite element model of representative volume elements is generated with steel fibre inclusions and homogenised concrete to determine the overall macroscale elastic modulus of SCFRC. The results show that the content of aggregates, steel fibres and porosity in the mix has a substantial effect on the elastic modulus. The influence of fibre orientation on the elastic modulus SCFRC is also investigated. The results obtained from the homogenisation method were compared with those obtained from an experimental study and it was found that the maximum error in the elastic modulus prediction using the proposed multiscale homogenisation approach was less than 4%. This agreement between multiscale homogenisation results and experimental data highlights the feasibility of using the two-step homogenisation approach in the development of SCFRC. It has been demonstrated that the proposed homogenisation method can efficiently replace time-consuming laboratory tests, saving both resources and time.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Innovative concrete reinforcement materials · Composite Material Mechanics · Concrete and Cement Materials Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (60)
Show source-provided references
1. Concrete mix design for high strength self-compacting concrete using metakaolin10.1016/j.matdes.2014.03.053 ↗
2. Self-compacting high performance concrete
3. Reorientation of short steel fibres during the flow of self-compacting concrete mix and determination of the fibre orientation factor10.1016/j.cemconres.2013.10.002 ↗
4. Effect of high temperature on the mechanical properties of basalt fibre self-compacting concrete as an overlay material10.1016/j.conbuildmat.2020.121725 ↗
5. Assessment of factors influencing mechanical properties of steel fiber reinforced self-compacting concrete10.1016/j.matdes.2015.06.024 ↗
6. Properties of self-compacted concrete incorporating basalt fibers: experimental study and gene expression programming (GEP) analysis
7. Development of self-compacting high and ultra high performance concretes with and without steel fibres10.1016/j.cemconcomp.2011.11.001 ↗
8. Effect of fine to coarse aggregate ratio on the rheology and fracture energy of steel fibre reinforced self-compacting concretes
9. Prediction of strength and analysis in self-compacting concrete using machine learning based regression techniques10.1016/j.advengsoft.2022.103267 ↗
10. Evaluation of the mechanical properties of self compacting concrete using current estimating models: estimating the modulus of elasticity, tensile strength, and modulus of rupture of self compacting concrete10.1016/j.conbuildmat.2011.03.033 ↗
11. A database for the evaluation of hardened properties of SCC
12. Effect of coarse aggregate on elastic modulus and compressive strength of high performance concrete10.1016/0008-8846(94)00125-I ↗
13. Mechanical properties of conventional and self-compacting concrete: an analytical study10.1016/j.conbuildmat.2012.04.034 ↗
14. Effect of coarse aggregate blending on short-term mechanical properties of self compacting concrete10.1016/j.matdes.2012.06.063 ↗
15. Eurocode 2, Design of Concrete Structures-Part 1–1: General Rules and Rules for Buildings, 2004. 〈www.saiglobal.com/shop〉.
16. ACI 318, American Concrete Institute, ACI Building Code Requirements for Reinforced Concrete, ACI 318-08, 2008.
17. Self-compacting concrete structures in Switzerland10.1016/j.tust.2004.02.080 ↗
18. Bonen · 2005 · 43
19. A variational approach to the theory of the elastic behaviour of multiphase materials10.1016/0022-5096(63)90060-7 ↗
20. The elastic behaviour of a crystalline aggregate10.1088/0370-1298/65/5/307 ↗
21. The determination of the elastic field of an ellipsoidal inclusion in an anisotronic medium
22. Average stress in matrix and average elastic energy of materials with misfitting inclusions10.1016/0001-6160(73)90064-3 ↗
23. Nemat-Nasser · 1993
24. Solutions for effective shear properties10.1016/0022-5096(79)90032-2 ↗
25. A self-consistent mechanics of composite materials10.1016/0022-5096(65)90010-4 ↗
26. Micro X-ray computed tomography image-based two-scale homogenisation of ultra high performance fibre reinforced concrete10.1016/j.conbuildmat.2016.09.020 ↗
27. Homogenization of inelastic composites with misaligned inclusions by using the optimal pseudo-grain discretization10.1016/j.ijsolstr.2017.03.008 ↗
28. Micromechanics of elasto-plastic materials reinforced with ellipsoidal inclusions10.1016/j.ijsolstr.2007.03.019 ↗
29. Elastic properties of self-compacting concrete modified with nanoparticles: multiscale approach10.1016/j.acme.2019.06.006 ↗
30. A critical comparison of several numerical methods for computing effective properties of highly heterogeneous materials10.1016/j.advengsoft.2012.12.002 ↗
31. Representative volume: existence and size determination10.1016/j.engfracmech.2006.12.021 ↗
32. Meso-scale analysis of FRC using a two-step homogenization approach10.1016/j.compstruc.2011.02.006 ↗
33. Elastic moduli of a material containing composite inclusions: effective medium theory and finite element computations10.1016/S0167-6636(01)00067-9 ↗
34. A multiscale model for effective moduli of concrete incorporating ITZ water-cement ratio gradients, aggregate size distributions, and entrapped voids10.1016/S0008-8846(02)00931-6 ↗
35. Determination of air-void parameters of hardened cement-based materials using X-ray computed tomography10.1016/j.conbuildmat.2012.07.012 ↗
36. Estimation of air void and aggregate spatial distributions in concrete under uniaxial compression using computer tomography scanning10.1016/j.cemconres.2004.08.016 ↗
37. Determination of 3D porosity in steel fibre reinforced SCC beams using X-ray computed tomography10.1016/j.conbuildmat.2014.06.064 ↗
38. Numerical simulation of the distribution and orientation of steel fibres in SCC10.1680/jmacr.18.00432 ↗
39. Proportioning of self–compacting concrete mixes based on target plastic viscosity and compressive strength: part I - mix design procedure
40. Mix proportioning of self-compacting normal and high-strength concretes10.1680/macr.12.00164 ↗
41. EFNARC, The European Guidelines for Self-Compacting Concrete, UK, 2005. 〈www.efnarc.org〉.
42. BS EN 12390-3, Testing Hardened Concrete: Compressive Strength of Test Specimens, 2009.
43. BS EN 12390-13, Determination of Secant Modulus of Elasticity in Compression, 2013.
44. Experimental and multi-scale numerical investigation of ultra-high performance fiber reinforced concrete (UHPFRC) with different coarse aggregate content and fiber volume fraction10.1016/j.conbuildmat.2020.120444 ↗
45. Mechanical properties tests and multiscale numerical simulations for basalt fiber reinforced concrete10.1016/j.conbuildmat.2019.01.018 ↗
46. A new approach to the application of Mori-Tanaka’s theory in composite materials10.1016/0167-6636(87)90005-6 ↗
47. Homogenization of two-phase elasto-plastic composite materials and structures study of tangent operators, cyclic plasticity and numerical algorithms10.1016/S0020-7683(03)00013-1 ↗
48. A study on image-processing based identification of aspect ratio of coarse aggregate10.1051/matecconf/201927502007 ↗
49. The effect of aggregate concentration upon the strength and modulus of elasticity of concrete10.1680/macr.1980.32.113.246 ↗
50. Elastic modulus of 3D carbon/carbon composite using image-based finite element simulations and experiments10.1016/j.compstruct.2012.11.019 ↗
51. Method of meshing ITZ structure in 3D meso-level finite element analysis for concrete10.1016/j.finel.2014.09.006 ↗
52. Study on 3D spatial distribution of steel fibers in fiber reinforced cementitious composites through micro-CT technique10.1016/j.conbuildmat.2013.07.052 ↗
53. Statistical analysis of initial defects between concrete layers of dam using X-ray computed tomography10.1016/j.conbuildmat.2016.08.149 ↗
54. The nano-mechanical signature of ultra high performance concrete by statistical nanoindentation techniques10.1016/j.cemconres.2008.09.002 ↗
55. Influence of compaction on the interfacial transition zone and the permeability of concrete10.1016/j.cemconres.2006.02.010 ↗
56. E.P. Koehler, D.W. Fowler, Aggregates in Self-Consolidating Concrete, The Aggregates Foundation for Technology, Research and Education, Research Report ICAR, Austin, TX, 2007.
57. Study of the durability of OPC versus GGBS concrete on exposure to silage effluent10.1061/(ASCE)0899-1561(2008)20:4(313) ↗
58. Strength, durability and leaching properties of concrete paving blocks incorporating GGBS and SF10.1016/j.conbuildmat.2016.02.152 ↗
59. Influence of the rheological properties on the steel fibre distribution and orientation in self-compacting concrete
60. Experimental and analytical study of the fibre distribution in SFRC: a comparison between image processing and the inductive test10.1016/j.compstruct.2018.01.006 ↗