Factors Influencing the Capillary Water Absorption Characteristics of Concrete and Their Relationship to Pore Structure
Source abstract
Abstract
The capillary absorption capacity exerts an important effect on the durability of cement-based materials and is closely related to the pore structure. In this study, a variety of cement-based specimens were examined. The capillary water absorption and pore structure of the samples were determined using a gravimetric method and mercury intrusion porosimetry (MIP), respectively. The capillary water absorption coefficients for different water–binder ratios, diverse types and dosages of mineral admixtures, and various preloads were measured. The experimental results were analyzed and compared with data available in the current literature. The test results showed that the capillary water absorption performance of cement-based materials increased with an increasing water–binder ratio, first decreased and then increased with an increasing fly ash dosage, decreased with an increasing mineral power dosage, and decreased when the preload was less than a critical value and increased rapidly when the preload was greater than the critical value. The relationship between the capillary absorption coefficient and porosity was nearly linear. Water absorption by cement-based materials mainly correlated with pore diameters in the range of 10~1000 nm. The capillary water absorption coefficient increased continuously with the increase of pore fractal dimension.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Concrete and Cement Materials Research · Concrete Properties and Behavior · Innovative concrete reinforcement materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Civil Engineering, Beijing Jiaotong University, Haidian District, Beijing 100044, China
Beijing Urban Construction Group Co., Ltd., Chaoyang District, Beijing 100020, China
Funding
Financial support from the Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · Beijing Natural Science Foundation
References (72)
Show source-provided references
1. Properties of recycled ceramic aggregate concretes: Water resistance10.1016/j.cemconcomp.2013.04.005 ↗
2. Prediction of the Cracking Effect on Mass Penetration into Unsaturated Concrete
3. Effect of surface adsorption on concrete
4. Experimental analysis on the relationship between pore structure and capillary water absorption characteristics of cement-based materials10.1002/suco.201900184 ↗
5. Quantitative damage evaluation of concrete suffered freezing–thawing by DIP technique10.1016/j.conbuildmat.2014.07.072 ↗
6. In-situ tracking of water transport in cement paste using X-ray computed tomography combined with CsCl enhancing10.1016/j.matlet.2015.08.011 ↗
7. Water sorptivity test for martar and concrete10.1007/BF02481540 ↗
8. Practical evaluation of relationship between concrete resistivity, water penetration, rapid chloride penetration and compressive strength10.1016/j.conbuildmat.2010.11.069 ↗
9. Zhan, S.W. (2018). Study on Transport Mechanism and Pore Structure of Alkali-Activated Slag Concrete in Freeze-Thaw and Chloride Composite Environment. [Master’s Thesis, Qingdao University of Technology].
10. Reactive Molecular Simulation on Water Confined in the Nanopores of the Calcium Silicate Hydrate Gel: Structure, Reactivity, and Mechanical Properties10.1021/jp509292q ↗
11. Discussion of the affecting factors on concrete sorption capacity
12. Pore structure analysis of hardened cement mortars containing silica fume and different nano-powders10.1016/j.conbuildmat.2013.11.105 ↗
13. Calcium sulfoaluminate and alkali-activated fly ash cements as alternative to Portland cement: Study on chemical, physical-mechanical, and durability properties of mortars with the same strength class10.1016/j.conbuildmat.2020.118436 ↗
14. Effects of Imposed Damage on the Capillary Water Absorption of Recycled Aggregate Concrete
15. Luo, L.L. (2018). Effect of Rehydration on Properties of Cement-Based Materials with Low Water-Cement Ratio. [Master’s Thesis, Beijing Jiaotong University].
16. Water Transport and Permeability Coefficient Calculation for Unsaturated Cement-Based Materials Based on X-CT
17. Experimental study of performance of repair mortar: Evaluation of in-situ tests and correlation analysis10.1016/j.jobe.2020.101325 ↗
18. Huang, H.F. (2020). Performance Evolution Mechanism of High Performance Concrete under the Action of Environmental Thermal Fatigue. [Ph.D. Thesis, Beijing Jiaotong University].
19. Wang, B.Z. (2013). Study on Chloride Ion Transportion in Unsaturated Concrete. [Master’s Thesis, Qingdao Technological University].
20. Tao, B. (2009). Effect of Concrete Pore Structure on Chloride Diffusivity. [Master’s Thesis, Wuhan University of Technology].
21. Influence of the interfacial transition zone and microcracking on the diffusivity, permeability and sorptivity of cement-based materials after drying10.1680/macr.2008.61.8.571 ↗
22. Electrical resistivity and capillary absorption in mortar with styrene-acrylic emulsion and air-entrained agent: Improvement and correlation with pore structure10.1016/j.conbuildmat.2020.119287 ↗
23. Influence of subsequent curing on water sorptivity and pore structure of steam-cured concrete10.1007/s11771-012-1122-2 ↗
24. Zhang, L.S. (2010). Research on Characteristics of Internal and External Damage of Concrete in Freeze-Thaw Environment. [Master’s Thesis, Qingdao Technological University].
25. Quantifying the anomalous water absorption behavior of cement mortar in view of its physical sensitivity to water10.1016/j.cemconres.2021.106395 ↗
26. Effect of polymer fibers recycled from waste tires on properties of wet-sprayed concrete10.1016/j.conbuildmat.2018.04.229 ↗
27. Combined effects of mineral admixtures and curing conditions on the sorptivity coefficient of concrete10.1016/S0008-8846(03)00112-1 ↗
28. (2007). Chinese National Standard, Chinese Cement: Common Portland Cement (Standard No. GB175–2007). pp. 2–6.
29. Water sorptivity of mortars and concrete:a review
30. Li, S.H. (2011). Theoretical and Experimental Study on the Capillary Absorption Within Concrete. [Master’s Thesis, Dalian University of Technology].
31. Capillary transport in mortars and concrete10.1016/S0008-8846(97)00052-5 ↗
32. Modelling the leaching of calcium hydroxide from cement paste: Effects on pore space percolation and diffusivity10.1007/BF02472448 ↗
33. Predicting water permeability and relative gas permeability of unsaturated cement-based material from hydraulic diffusivity10.1016/j.cemconres.2014.01.016 ↗
34. Influences of water-to-cement ratio and curing condition on water absorption of internal curing concrete
35. (2002). Standard for Test Methods of Mechanical Performance on Ordinary Concrete (Standard No. GB/T 50081(2002)). pp. 15–16.
36. Effect of environmental thermal fatigue on concrete performance based on mesostructural and microstructural analyses10.1016/j.conbuildmat.2019.02.072 ↗
37. Study on the effect of aggregate composition on the water absorption characteristics of concrete
38. Cheng, B.J. (2016). Experimental Study on the Influence of Curing Conditions on Capillary Absorption of Concrete. [Master’s Thesis, Dalian University of Technology].
39. Influence of Short-Term Sustained Compressive Loading on Capillary Water Absorption of High Strength Concrete
40. Water Sorptivity of Steam Curing Concrete
41. Effect of Organic Silicon Hydrophobic Agent on Strength and Capillary Absorption of Concrete
42. Influence of mineral admixtures on transportation properties and pore structure of steam-cured concrete
43. Capillary Water Absorption Characteristics of Recycled Concrete in Freeze-Thaw Environment
44. Research on the factors influencing water transport in cement-based materials
45. Research on Moisture Absorption Process and Prediction Model of Recycled Concrete Mixed with Fly Ash
46. Ling, C.B. (2020). Experimental Study on Electrical Properties of Cement-Based Materials. [Master’s Thesis, Southwest Jiaotong University].
47. Influence of mineral admixture on the water sorptivity of concrete
48. Sun, J.Y. (2012). Research on Moisture Transport under Wetting and Drying Conditions. [Master’s Thesis, Zhejiang University].
49. Ding, S. (2014). Research on the Relationship between Microstructure and Macroscopic Performance of Shotcrete. [Master’s Thesis, Xi’an University of Architecture and Technology].
50. Yang, H.M. (2015). Anti-freezing Material Used in RCC in Extremely Cold and High Altitude Areas and Its Action Mechanism. [Ph.D. Thesis, WuHan University].
51. Study on concrete capillary absorption effect mix with mineral admixtures
52. Concrete after 30 years of exposure-Part 1: Mineralogy, microstructures, and interfaces
53. Correlations of test parameters of concrete with mineral admixtures according to ASTM C1202
54. Effect of Incorporating Blast Furnace Slag and Natural Pozzolana on Compressive Strength and Capillary Water Absorption of Concrete10.1016/j.proeng.2015.06.145 ↗
55. Capillary suction induced water absorption and chloride transport in non-saturated concrete: The influence of humidity, mineral admixtures and sulfate ions10.1016/j.conbuildmat.2019.117581 ↗
56. Li, M.Y. (2019). Experimental Study on Mass Transport in High Strength Concrete (HSC) with Blast Furnace Slag under Short-Term Sustained Compressive Loading. [Master’s Thesis, Dalian University of Technology].
57. Cracking and Permeability of Concrete Under Tension10.1007/BF02486159 ↗
58. Permeability Study of Cracked Concrete10.1016/S0008-8846(97)00031-8 ↗
59. Observation of water penetration in to water repellent and cracked cament-based materials by means of neutron radio graphy
60. Influence of Steel Fiber on Capillary Water Absorption of Concrete under Load
61. Influence of Damage Load on the Capillary Absorption of the Concrete
62. Effect of Short-Term Sustained Uniaxial Loadings on Water Absorption of Concrete10.1061/(ASCE)MT.1943-5533.0001746 ↗
63. Chen, B.L. (2020). Experimental Research and Mesoscale Numerical Simulation of Mass Transport Properties of Concrete under Short-term Sustained High Compressive Stress. [Master’s Thesis, Dalian University of Technology].
64. Research on permeability of strain hardening cement-based composites (SHCC) under compressive load
65. Dai, Z.Z. (2018). Study on the Coupling Effect of Uniaxial Continuous Load and Freeze-Thaw Cycles on the Durability of Concrete. [Master’s Thesis, Qingdao University of Technology].
66. Porosity testing of cementitious materials based on electrical method
67. Relationship between sorptivity and capillary coefficient for water absorption of cement-based materials: Theory analysis and experiment10.1098/rsos.190112 ↗
68. Discussion on the recent development direction of concrete science and technology
69. Shen, A.Q. (2000). Cement and Cement Concrete, China Communications Press. [1st ed.].
70. Zhao, T.J. (2006). Concrete Permeability, Science Press. [1st ed.].
71. Yin, H.Y. (2006). Study the Fractal Characteristic of Concrete’s Pore Structure. [Master’s Thesis, Guangxi University].
72. Pore volume fractal dimension of fly ash-cement paste and its relationship between the pore structure and strength