Utilizing of coral/sea sand as aggregates in environment-friendly marine mortar: Physical properties, carbonation resistance and microstructure
Source abstract
Abstract
The utilization of marine waste and resources to produce eco-friendly building materials is essential for the sustainable development of the construction industry on islands and coastal areas. The sea sand and coral sand sourced from coral waste are the most promising. Therefore, the objective of this work is to investigate the feasibility of coral/sea sand as fine aggregate to prepare an environment-friendly marine mortar. The effects of various volume fractions of coral sand intended to replace sea sand on the flowability, physical performances, carbonation resistance, and microstructure of the prepared marine mortars were evaluated. The experimental results showed that as the sea sand replacement by coral sand was increased, the flowability and dry bulk density decreased, while the water absorption increased. Encouragingly, usage of a combination of coral and sea sands enhanced the flexural strength of marine mortars. A mixture containing 80 vol% of coral sand showed the best effect. The carbonation depth of marine mortar was found to noticeably increase with increasing replacement ratios of sea sand by coral sand, closely relating to the increase in the volume of capillary and large pores. In particular, the combined utilization of coral sand and sea sand resulted in a compacted interfacial transition zone (ITZ) between fine aggregates and the matrix.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Concrete and Cement Materials Research · Innovative concrete reinforcement materials · Microbial Applications in Construction Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (72)
Show source-provided references
1. The development of coral concretes and their upgrading technologies: a critical review10.1016/j.conbuildmat.2018.07.202 ↗
2. Literature review of coral concrete
3. Mechanical behavior and durability of coral aggregate concrete and bonding performance with fiber-reinforced polymer (FRP) bars: a critical review10.1016/j.jclepro.2020.125652 ↗
4. Effects of coral, recycled and natural coarse aggregates on the mechanical properties of concrete10.1016/j.conbuildmat.2018.10.111 ↗
5. Study on fracture properties of alkali-activated slag seawater coral aggregate concrete10.1016/j.conbuildmat.2019.06.191 ↗
6. Mechanical properties of coral concrete subjected to uniaxial dynamic compression10.1016/j.conbuildmat.2018.12.032 ↗
7. Mix design and characteristics evaluation of an eco-friendly Ultra-High Performance Concrete incorporating recycled coral based materials10.1016/j.jclepro.2017.07.096 ↗
8. Utilizing coral waste and metakaolin to produce eco-friendly marine mortar: hydration, mechanical properties and durability10.1016/j.jclepro.2019.02.147 ↗
9. Coral aggregate concrete: numerical description of physical, chemical and morphological properties of coral aggregate10.1016/j.cemconcomp.2019.03.016 ↗
10. Physical and mechanical properties of coral sand in the Nansha Islands
11. Major coral extinctions during the early Toarcian global warming event10.1016/j.gloplacha.2021.103647 ↗
12. Initial-corrosion condition behavior of the Cr and Al alloy steel bars in coral concrete for marine construction10.1016/j.cemconcomp.2021.104051 ↗
13. Good concrete made with coral and sea water
14. C.H. Scholer, Examination and study of certain structures in the Pacific Ocean area, Progress Report, USNCEL, Contract NBy-3171, USN CEL, (1959).
15. Howdyshell · 1974
16. Chen · 2017
17. Enhancing the performance of basic magnesium sulfate cement-based coral aggregate concrete through gradient composite design technology10.1016/j.compositesb.2021.109382 ↗
18. Compressive strength evaluation of coral aggregate seawater concrete (CAC) by non-destructive techniques10.1016/j.engstruct.2018.08.104 ↗
19. Experimental study and numerical simulation of impact compression mechanical properties of high strength coral aggregate seawater concrete10.1016/j.ijimpeng.2019.103466 ↗
20. Study on flexural behavior of carbon fibers reinforced coral concrete using digital image correlation10.1016/j.conbuildmat.2019.117968 ↗
21. Performance evaluation and microstructure characterization of seawater and coral/sea sand alkali-activated mortars10.1016/j.conbuildmat.2020.120403 ↗
22. Experimental study and microstructure analysis of calcareous sand cement mortar
23. The evolution of the microstructure and mechanical properties of coral aggregate mortar under uniaxial compression using ultrasonic analysis10.1016/j.conbuildmat.2021.124000 ↗
24. Mechanical properties and microstructural characteristics of coral sand mortar
25. Constitutive relations of coral aggregate concrete under uniaxial and triaxial compression10.1016/j.conbuildmat.2020.118957 ↗
26. Chloride ingress and binding of coral waste filler-coral waste sand marine mortar incorporating metakaolin10.1016/j.conbuildmat.2018.09.189 ↗
27. Properties of coral waste-based mortar incorporating metakaolin: part II. Chloride migration and binding behaviors10.1016/j.conbuildmat.2018.04.076 ↗
28. Development of properties and microstructure of concrete with coral reef sand under sulphate attack and drying-wetting cycles10.1016/j.conbuildmat.2018.01.085 ↗
29. Study of the anti-abrasion performance and mechanism of coral reef sand concrete10.1016/j.conbuildmat.2021.123263 ↗
30. The effect of fly ash and silica fume on mechanical properties and durability of coral aggregate concrete10.1016/j.conbuildmat.2018.06.097 ↗
31. Recycled PET sand for cementitious mortar10.3390/ma15010273 ↗
32. Effect of granite residue incorporation on the behavior of mortars10.3390/ma12091449 ↗
33. Analysis of the compactness and properties of the hardened state of mortars with recycling of construction and demolition waste (CDW)10.1016/j.jmrt.2020.03.122 ↗
34. Eco-friendly mortars with addition of ornamental stone waste-a mathematical model approach for granulometric optimization10.1016/j.jclepro.2019.119283 ↗
35. A review on seawater sea-sand concrete: mixture proportion, hydration, microstructure and properties10.1016/j.conbuildmat.2021.123602 ↗
36. Properties and application of sea sand in sea sand–seawater concrete10.1061/(ASCE)MT.1943-5533.0003475 ↗
37. Use of sea-sand and seawater in concrete construction: current status and future opportunities10.1016/j.conbuildmat.2017.08.130 ↗
38. Investigation on early-age hydration, mechanical properties and microstructure of seawater sea sand cement mortar10.1016/j.conbuildmat.2020.118776 ↗
39. Mechanical properties of sea sand recycled aggregate concrete under axial compression10.1016/j.conbuildmat.2018.04.136 ↗
40. Mechanical and durability properties of concrete made with dredged marine sand10.1016/j.conbuildmat.2011.04.053 ↗
41. Dredged offshore sand as a replacement for fine aggregate in concrete
42. Study of the influence of seawater and sea sand on the mechanical and microstructural properties of concrete
43. Sulfate resistance of eco-friendly and sulfate-resistant concrete using seawater sea-sand and high-ferrite Portland cement10.1016/j.conbuildmat.2021.124753 ↗
44. Carbonation of concrete made with dredged marine sand and its effect on chloride binding10.1016/j.conbuildmat.2016.05.011 ↗
45. Critical conditions and life prediction of reinforcement corrosion in coral aggregate concrete10.1016/j.conbuildmat.2019.117685 ↗
46. Rebar corrosion in coral aggregate concrete: determination of chloride threshold by LPR10.1016/j.corsci.2019.108238 ↗
47. GB/T 14684-2001 · 2001
48. GB/T 175-2007 · 2007
49. GB/T 2419-2016 · 2016
50. GB/T 17671-1999 · 1999
51. GB/T 50081-2019 · 2019
52. BS EN 12390-7 · 2019
53. Strength and chloride ion distribution brought by aggregate of basalt fiber reinforced coral aggregate concrete10.1016/j.conbuildmat.2019.117390 ↗
54. Feasibility of kaolin tailing sand to be as an environmentally friendly alternative to river sand in construction applications10.1016/j.jclepro.2018.09.119 ↗
55. Impact of mussel shell aggregates on air lime mortars. Pore structure and carbonation10.1016/j.jclepro.2019.01.121 ↗
56. Evaluation of mortar properties by combining concrete and brick wastes as fine aggregate
57. Effects of various shape parameters on packing of aggregate particles10.1680/macr.2001.53.2.91 ↗
58. Synergetic recycling of waste glass and recycled aggregates in cement mortars: physical, durability and microstructure performance10.1016/j.cemconcomp.2020.103632 ↗
59. Investigation of the engineering properties of environmentally-friendly self-compacting lightweight mortar containing olive kernel shells as aggregate10.1016/j.jclepro.2019.119406 ↗
60. Investigation of physical and mechanical properties of mortars produced by polymer coated perlite aggregate
61. Effect of particle characteristics stress on the mechanical properties of cement mortar with coral sand10.1016/j.conbuildmat.2020.119836 ↗
62. GB/T 175-2016 · 2016
63. Recycling of crushed waste clay brick as aggregates in cement mortars: An approach from macro-and micro-scale investigation10.1016/j.conbuildmat.2020.122068 ↗
64. The influence of mortar-aggregate bond strength on the behaviour of concrete in uniaxial compression10.1016/0008-8846(77)90117-X ↗
65. Evaluation of mechanical properties and carbonation of mortars produced with construction and demolition waste10.1016/j.conbuildmat.2017.11.089 ↗
66. Effect of binary admixture of sepiolite and fly ash on carbonation and chloride resistance of modified cement mortar10.1016/j.conbuildmat.2021.122509 ↗
67. Properties of Portland cement paste blended with coral sand powder10.1016/j.conbuildmat.2019.01.100 ↗
68. Pore structure evolution mechanism of cement mortar containing diatomite subjected to freeze-thaw cycles by multifractal analysis10.1016/j.cemconcomp.2020.103731 ↗
69. Damage to the pore structure of hardened Portland cement paste by mercury intrusion10.1111/j.1151-2916.1997.tb03144.x ↗
70. Permeability characteristics of carbonated concrete considering capillary pore structure10.1016/j.cemconres.2007.03.011 ↗
71. Characteristics of surface-treatment of nano-SiO2 on the transport properties of hardened cement pastes with different water-to-cement ratios10.1016/j.cemconcomp.2014.07.022 ↗
72. The interfacial transition zone (ITZ) between cement paste and aggregate in concrete10.1023/B:INTS.0000042339.92990.4c ↗