A new treatment for coconut fibers to improve the properties of cement-based composites – Combined effect of natural latex/pozzolanic materials
Source abstract
Abstract
This paper presents the results of experimental study with a new coconut fiber-cement composite (CFC). To obtain a material with improved performance in order to decrease the amount of calcium hydroxide present on the fiber surface, four forms of coconut fiber treatment were tested. Some combinations of natural latex, water and pozzolanic materials (silica fume or metakaolin) were evaluated by degradation test and accelerated aging through cycles of wetting and drying CFC samples. To determine the mechanical properties obtained from each treatment, flexural tests on CFC composites were performed. After the flexural tests, the fibers were removed from the specimens and analyzed by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), Fourier Transform Infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). The results indicate that the treatment carried out with the natural latex polymer film combined with a pozzolan layer improved the performance and durability of the CFC.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Natural Fiber Reinforced Composites · Innovative concrete reinforcement materials · Advanced Cellulose Research Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (42)
Show source-provided references
1. Behaviour of Ca(OH)2 in polymer modified mortars10.1016/0262-5075(89)90104-8 ↗
2. Improved durability of vegetable fiber reinforced cement composite subject to accelerated carbonation at early age10.1016/j.cemconcomp.2013.05.001 ↗
3. Cellulosic fiber reinforced cement-based composites: a review of recent research10.1016/j.conbuildmat.2015.01.035 ↗
4. Thermal characterization of chemically treated coconut husk fibre
5. Treatments of non-wood plant fibres used as reinforcement in composite materials
6. Improved mechanical properties of glass fibre reinforced cement by polymer modification10.1016/0958-9465(90)90046-Z ↗
7. Study of banana and coconut fibers. Botanical composition, thermal degradation and textural observations
8. Effect of fiber treatments on the sisal fiber properties and fiber–matrix bond in cement based systems10.1016/j.conbuildmat.2015.10.120 ↗
9. Mechanical and bond properties of coconut shell concrete10.1016/j.conbuildmat.2010.06.053 ↗
10. A study on some durability properties of coconut shell aggregate concrete10.1617/s11527-013-0230-2 ↗
11. Effect of pozzolans on the performance of fiber-reinforced mortars10.1016/j.cemconcomp.2004.09.010 ↗
12. IBGE - Instituto Brasileiro de Geografia e Estatística · 2015 · vol.29 · 1
13. Durability of slag mortar reinforced with coconut fibre10.1016/j.cemconcomp.2004.09.007 ↗
14. Chemical characterization of agroforestry solid residues aiming its utilization as adsorbents for metals in water10.1590/1807-1929/agriambi.v19n1p77-83 ↗
15. Studies on the thermal properties of sisal fiber and its constituents10.1016/j.tca.2010.04.008 ↗
16. Degradation kinetics and aging mechanisms on sisal fiber cement composite systems10.1016/j.cemconcomp.2013.04.003 ↗
17. Influence of silica fume and metakaolin with two different types of interfacial adhesives on the bond strength of repaired concrete10.1016/j.conbuildmat.2013.10.048 ↗
18. Effect of alkali treatment on interfacial and mechanical properties of coir fiber reinforced poly(butylene succinate) biodegradable composites10.1016/j.compositesb.2011.04.001 ↗
19. FTIR studies of the changes in wood chemistry following decay by brown-rot and white-rot fungi10.1016/S0964-8305(03)00052-0 ↗
20. Mineralogical and microstructural changes promoted by accelerated carbonation and ageing cycles of hybrid fiber–cement composites10.1016/j.conbuildmat.2014.06.055 ↗
21. Study on the interaction between anionic and cationic latex particles and Portland cement10.1016/j.colsurfa.2008.08.005 ↗
22. Studies on the durability of natural fibres and the effect of corroded fibres on the strength of mortar10.1016/j.cemconcomp.2004.09.008 ↗
23. Strength and durability of coconut-fiber-reinforced concrete in aggressive environments10.1016/j.conbuildmat.2012.09.002 ↗
24. Utilization of the coconut shell of babaçu (Orbignya sp.) to produce cement-bonded particleboard10.1016/S0960-8524(02)00082-2 ↗
25. Assessment of coconut fibre insulation characteristics and its use to modulate temperatures in concrete slabs with the aid of a finite element methodology10.1016/j.enbuild.2011.01.005 ↗
26. Treated coconut shell reinforced unsaturated polyester composites
27. Effect of colloidal silica on the mechanical properties of fiber–cement reinforced with cellulosic fibers10.1007/s10853-014-8455-1 ↗
28. Non-conventional cement-based composites reinforced with vegetable fibers: a review of strategies to improve durability10.3989/mc.2015.05514 ↗
29. Fracture and fatigue of natural fiber-reinforced cementitious composites10.1016/j.cemconcomp.2009.02.006 ↗
30. Compressive strength of cement mortar prepared with the addition of coconut fiber
31. Degradation of coconut fiber immersed in cement and NaOH alkaline solutions
32. Use of high-resolution thermogravimetric analysis (HRTG) technique in spent FCC catalyst/Portland cement pastes10.1007/s10973-015-4526-z ↗
33. Durability of compression molded sisal fiber reinforced mortar laminates10.1016/j.conbuildmat.2008.10.012 ↗
34. Development of vegetable fibre-mortar composites of improved durability10.1016/S0958-9465(02)00018-5 ↗
35. Characterisation and utilization of natural coconut fibres composites10.1016/j.matdes.2008.11.002 ↗
36. Degradation rate of natural fiber in cement composites exposed to various accelerated aging environment conditions10.1016/j.corsci.2014.07.029 ↗
37. Improving degradation resistance of sisal fiber in concrete through fiber surface treatment10.1016/j.apsusc.2013.11.024 ↗
38. Sisal fiber-reinforced cement composite with Portland cement substitution by a combination of metakaolin and nanoclay10.1007/s10853-014-8469-8 ↗
39. Degradation mechanisms of natural fiber in the matrix of cement composites10.1016/j.cemconres.2015.02.019 ↗
40. Utilization of rice husk ash in green natural fiber-reinforced cement composites: mitigating degradation of sisal fiber10.1016/j.cemconres.2015.12.001 ↗
41. Correlation between hydration of cement and durability of natural fiber-reinforced cement composites10.1016/j.corsci.2016.01.020 ↗
42. Characteristics of hemicellulose, cellulose and lignin pyrolysis10.1016/j.fuel.2006.12.013 ↗