| Full text | |
| Author(s): |
Tonoli, G. H. D.
[1]
;
Pizzol, V. D.
[1]
;
Urrea, G.
[2]
;
Santos, S. F.
[3]
;
Mendes, L. M.
[1]
;
Santos, V.
[2]
;
John, V. M.
[4]
;
Frias, M.
[5]
;
Savastano, Jr., H.
[2]
Total Authors: 9
|
| Affiliation: | [1] Univ Fed Lavras UFLA, Dept Forest Sci, CP 3037, BR-37200000 Lavras, MG - Brazil
[2] Univ Sao Paulo, Fac Zootecnia & Engn Alimentos, Dept Biosyst Engn, Ave Duque de Caxias Norte 225, BR-13635900 Pirassununga, SP - Brazil
[3] Univ Estadual Paulista UNESP, Dept Mat & Technol, Fac Engn, V Ariberto Pereira da Cunha 333, BR-12516410 Guaratingueta, SP - Brazil
[4] Univ Sao Paulo, Dept Construct Engn, Escola Politecn, BR-05508900 Sao Paulo, SP - Brazil
[5] Eduardo Torroja Inst Construct Sci CSIC, C Serrano Galvache 4, Madrid 28033 - Spain
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | Journal of Materials Science; v. 51, n. 17, p. 7929-7943, SEP 2016. |
| Web of Science Citations: | 12 |
| Abstract | |
The objective of this work is to show the effect of carbonation at early stages on fiber-cement composites and impact on hydration, chemical and dimension stability. Carbonation increased the content of CaCO3 polymorphs and consumed Ca(OH)(2) and other hydrated calcium phases. Micrographs and energy-dispersive spectrometry showed the CaCO3 formed is precipitated in the pore structure of the matrix, decreasing diffusion of Si, S, and Al during hydration. Therefore, a refining process of pore sizes is produced, and fiber-matrix interface in carbonated composites was improved, leading to volume stabilization of the composite, as indicated by lower drying shrinkage and lower porosity. (AU) | |
| FAPESP's process: | 13/50790-8 - Materiais a base de cimento nao convencionais desenvolvidos com residuos agroindustriais como contribuicao para uma industria mais sustentavel. (fapesp-csic 2013) |
| Grantee: | Holmer Savastano Junior |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 13/23810-8 - Estudo de matrizes cimentícias com cinzas agroindustriais e fibras vegetais para fibrocimento |
| Grantee: | Valdemir dos Santos |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 12/51467-3 - Agroindustrial wastes and its potential use as appropriate materials for housing and infrastructures (agrowaste). (fapesp/anr-blanc-awapumat) |
| Grantee: | Holmer Savastano Junior |
| Support Opportunities: | Research Projects - Thematic Grants |