Experimental and numerical evaluation of mechanical properties of interface between filler and hydration products
Source abstract
Abstract
Abstract The interface between filler and hydration products can have a significant effect on the mechanical properties of the cement paste system. Surface analysis techniques and mechanical model can be used to study the mechanical properties of the interface. These studies can provide insight into the adhesion mechanisms between filler and hydration products. In this paper, cement pastes blended with fillers (micronized sand and limestone powder) are discussed. Crack paths and fracture surfaces of loaded cement pastes were investigated by scanning electron microscopy (SEM) observation. Parallel with the SEM observations, the influence of interface properties on crack propagation, tensile strength and fracture energy was studied numerically by using a lattice model. With these SEM observations and simulation results the mechanical properties of the interface between filler and hydration products were evaluated. Limestone powder exhibited superior bond characteristics with hydration products compared with micronized sand. Furthermore, it suggests that the limestone-hydration products interface is even stronger than hydration products. This is likely due to the strong electrostatic interactions or the iono-covalent forces between limestone particles and C-S-H particles.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Concrete and Cement Materials Research · Innovative concrete reinforcement materials · Grouting, Rheology, and Soil Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (47)
Show source-provided references
1. Limestone filler cement in low w/c concrete: a rational use of energy10.1016/S0008-8846(02)01087-6 ↗
2. Optimization of high strength limestone filler cement mortars10.1016/0008-8846(96)00071-3 ↗
3. Microstructure and performance of energetically modified cement (EMC) with high filler content10.1016/j.cemconcomp.2007.03.004 ↗
4. Influence of limestone on the hydration of Portland cements10.1016/j.cemconres.2008.01.002 ↗
5. Modeling the influence of limestone filler on cement hydration using CEMHYD3D10.1016/j.cemconcomp.2005.10.006 ↗
6. The function of fillers in concrete10.1007/BF02486602 ↗
7. Mineral admixtures in mortars – effect of inert materials on short-term hydration10.1016/S0008-8846(03)00183-2 ↗
8. Mechanical properties and microstructure of a graphene oxide–cement composite10.1016/j.cemconcomp.2015.02.001 ↗
9. Mechanical performance evaluation of polyester fiber and SBR latex compound-modified cement concrete road overlay material10.1016/j.conbuildmat.2014.04.054 ↗
10. The interface between natural siliceous aggregates and geopolymers10.1016/S0008-8846(03)00250-3 ↗
11. SEM investigations of fracture surfaces using stereo pairs II. Fracture surfaces of rock-cement paste composite specimens10.1016/0008-8846(92)90020-V ↗
12. The cracking and fracture of mortar10.1007/BF02473571 ↗
13. Qian · 2012
14. Experimental and numerical analysis of micromechanisms of fracture of cement-based composites10.1016/0958-9465(92)90004-F ↗
15. Schlangen · 1993
16. Prediction of mechanical properties of cement paste at microscale10.3989/mc.2010.55209 ↗
17. Van Vliet · 2000
18. 3D lattice type fracture model for concrete10.1016/S0013-7944(02)00158-3 ↗
19. Vervuurt · 1997
20. Micromechanical study of the interface properties in concrete repair systems10.3151/jact.12.320 ↗
21. Taylor · 1997
22. A. Standard, C305, Standard practice for mechanical mixing of hydraulic cement pastes and mortars of plastic consistency. Annual book of ASTM standards, 2006.
23. Fracture simulations of concrete using lattice models: computational aspects10.1016/S0013-7944(97)00010-6 ↗
24. Luković · 2016
25. Combined experimental and numerical study of fracture behaviour of cement paste at the microlevel10.1016/j.cemconres.2015.03.008 ↗
26. Multi-scale interaction potentials (F − r) for describing fracture of brittle disordered materials like cement and concrete10.1007/s10704-007-9050-0 ↗
27. High strength concrete: effects of materials, curing and test procedures on short-term compressive strength10.15554/pcij.05011993.76.87 ↗
28. Xiaowei Ouyang, Guang Ye, Breugel Kv. Effect of Inert Additives on Compressive Strength of Cement Paste: Results from Numerical Analysis of Connectivity of Solid Phases, in: The 14th International Congress on the Chemistry of Cement (ICCC 2015). Beijing, China, 2015.
29. Microstructurally-designed cement pastes: a mimic strategy to determine the relationships between microstructure and properties at any hydration degree10.1016/j.cemconres.2015.01.020 ↗
30. The interfacial transition zone (ITZ) between cement paste and aggregate in concrete10.1023/B:INTS.0000042339.92990.4c ↗
31. Microstructure determination of calcium-silicate-hydrate globules by small-angle neutron scattering10.1021/jp300745g ↗
32. Why does concrete set? The nature of cohesion forces in hardened cement-based materials10.1557/mrs2004.97 ↗
33. Nanoscale experimental investigation of particle interactions at the origin of the cohesion of cement10.1021/la050440+ ↗
34. Investigation by atomic force microscopy of forces at the origin of cement cohesion10.1016/S0304-3991(00)00091-7 ↗
35. Ingram · 1990
36. Adding limestone fines as cementitious paste replacement to improve tensile strength, stiffness and durability of concrete10.1016/j.cemconcomp.2015.02.006 ↗
37. Calcareous fillers and the compressive strength of Portland cement10.1016/0008-8846(76)90099-5 ↗
38. F. Massazza, U. Costa, Bond: paste-aggregate, paste-reinforcement and paste-fibres, in: Proceedings of the 8th International Congress on the Chemistry of Cement, Rio de Janeiro, 1986. pp. 158–80.
39. Influence of quartz particle size on the chemical and mechanical properties of autoclaved aerated concrete (I) tobermorite formation10.1016/0008-8846(95)00003-8 ↗
40. The reaction between aggregate and cement paste in autoclaved concrete10.1007/BF02594316 ↗
41. Hawkins · 2003
42. Hydration products of C3A, C3S and Portland cement in the presence of CaCO310.1016/S0008-8846(00)00292-1 ↗
43. Effect of fillers on strength of cement mortars10.1016/0008-8846(77)90073-4 ↗
44. Microscopic physical basis of the poromechanical behavior of cement-based materials10.1617/14101 ↗
45. Controlling the cohesion of cement paste10.1021/la051048z ↗
46. A test method for determining adhesion forces and Hamaker constants of cementitious materials using atomic force microscopy10.1016/j.cemconres.2011.07.004 ↗
47. Zeta-potential study of calcium silicate hydrates interacting with alkaline cations10.1006/jcis.2001.7897 ↗