Engineering properties, phase evolution and microstructure of the iron-rich aluminosilicates-cement based composites: Cleaner production of energy efficient and sustainable materials

This paper investigates the direct transformation of laterites (natural iron-rich aluminosilicates) to cementitious composites with principal mineral phases being Gismondine and Stratlingite. The effects of particles size distribution and cement content (2 to 8 wt%) on the mechanical properties and...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Van Essa L.K. Samen, Rodrigue Cyriaque Kaze, Juvenal Giogetti Deutou Nemaleu, H.K. Tchakoute, P. Meukam, E. Kamseu, C. Leonelli
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Laterites Particle size distribution Microstructure Pore size distribution Mechanical properties Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/b7eff25c76674f7b871d97e467e30b63
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:b7eff25c76674f7b871d97e467e30b63
record_format	dspace
spelling	oai:doaj.org-article:b7eff25c76674f7b871d97e467e30b632021-12-01T05:07:26ZEngineering properties, phase evolution and microstructure of the iron-rich aluminosilicates-cement based composites: Cleaner production of energy efficient and sustainable materials2772-397610.1016/j.clema.2021.100017https://doaj.org/article/b7eff25c76674f7b871d97e467e30b632021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2772397621000174https://doaj.org/toc/2772-3976This paper investigates the direct transformation of laterites (natural iron-rich aluminosilicates) to cementitious composites with principal mineral phases being Gismondine and Stratlingite. The effects of particles size distribution and cement content (2 to 8 wt%) on the mechanical properties and microstructure of laterite-cement composites are assessed. Four grades of granulometry with various percentages of fine and coarse particles were considered. The Environment Scanning Electron Microscopy (ESEM), Mercury Intrusion Porosimetry (MIP), Fourier Transformed Infrared Spectroscopy (FT-IR) and X-ray Powder Diffractometry (XRD) were performed after 1, 90 and 365 days, to assess the phase’s evolution, mechanical performance and the microstructure of the laterite-cement composites. It is found that fines particles, essentially pozzolanic and amorphous, are responsible for the bonding strength while coarse particles improve the compressive strength. Dense and compact microstructure, water absorption under 18% and flexural strength above 6 MPa (compressive strength > 30 MPa) could be achieved as from 4 wt% of cement making the laterite-cement composite appropriate as building and construction materials. The choice of a highly corroded class of laterite and the selection of the particle size distribution allows the production of optimum composite that is presented as energy-efficient and sustainable. Thus, corroded or indurated laterites are considered as “green metakaolins” which do not require any energy for their transformation unlike clayey materials.Van Essa L.K. SamenRodrigue Cyriaque KazeJuvenal Giogetti Deutou NemaleuH.K. TchakouteP. MeukamE. KamseuC. LeonelliElsevierarticleLateritesParticle size distributionMicrostructurePore size distributionMechanical propertiesMaterials of engineering and construction. Mechanics of materialsTA401-492ENCleaner Materials, Vol 1, Iss , Pp 100017- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Laterites Particle size distribution Microstructure Pore size distribution Mechanical properties Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Laterites Particle size distribution Microstructure Pore size distribution Mechanical properties Materials of engineering and construction. Mechanics of materials TA401-492 Van Essa L.K. Samen Rodrigue Cyriaque Kaze Juvenal Giogetti Deutou Nemaleu H.K. Tchakoute P. Meukam E. Kamseu C. Leonelli Engineering properties, phase evolution and microstructure of the iron-rich aluminosilicates-cement based composites: Cleaner production of energy efficient and sustainable materials
description	This paper investigates the direct transformation of laterites (natural iron-rich aluminosilicates) to cementitious composites with principal mineral phases being Gismondine and Stratlingite. The effects of particles size distribution and cement content (2 to 8 wt%) on the mechanical properties and microstructure of laterite-cement composites are assessed. Four grades of granulometry with various percentages of fine and coarse particles were considered. The Environment Scanning Electron Microscopy (ESEM), Mercury Intrusion Porosimetry (MIP), Fourier Transformed Infrared Spectroscopy (FT-IR) and X-ray Powder Diffractometry (XRD) were performed after 1, 90 and 365 days, to assess the phase’s evolution, mechanical performance and the microstructure of the laterite-cement composites. It is found that fines particles, essentially pozzolanic and amorphous, are responsible for the bonding strength while coarse particles improve the compressive strength. Dense and compact microstructure, water absorption under 18% and flexural strength above 6 MPa (compressive strength > 30 MPa) could be achieved as from 4 wt% of cement making the laterite-cement composite appropriate as building and construction materials. The choice of a highly corroded class of laterite and the selection of the particle size distribution allows the production of optimum composite that is presented as energy-efficient and sustainable. Thus, corroded or indurated laterites are considered as “green metakaolins” which do not require any energy for their transformation unlike clayey materials.
format	article
author	Van Essa L.K. Samen Rodrigue Cyriaque Kaze Juvenal Giogetti Deutou Nemaleu H.K. Tchakoute P. Meukam E. Kamseu C. Leonelli
author_facet	Van Essa L.K. Samen Rodrigue Cyriaque Kaze Juvenal Giogetti Deutou Nemaleu H.K. Tchakoute P. Meukam E. Kamseu C. Leonelli
author_sort	Van Essa L.K. Samen
title	Engineering properties, phase evolution and microstructure of the iron-rich aluminosilicates-cement based composites: Cleaner production of energy efficient and sustainable materials
title_short	Engineering properties, phase evolution and microstructure of the iron-rich aluminosilicates-cement based composites: Cleaner production of energy efficient and sustainable materials
title_full	Engineering properties, phase evolution and microstructure of the iron-rich aluminosilicates-cement based composites: Cleaner production of energy efficient and sustainable materials
title_fullStr	Engineering properties, phase evolution and microstructure of the iron-rich aluminosilicates-cement based composites: Cleaner production of energy efficient and sustainable materials
title_full_unstemmed	Engineering properties, phase evolution and microstructure of the iron-rich aluminosilicates-cement based composites: Cleaner production of energy efficient and sustainable materials
title_sort	engineering properties, phase evolution and microstructure of the iron-rich aluminosilicates-cement based composites: cleaner production of energy efficient and sustainable materials
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/b7eff25c76674f7b871d97e467e30b63
work_keys_str_mv	AT vanessalksamen engineeringpropertiesphaseevolutionandmicrostructureoftheironrichaluminosilicatescementbasedcompositescleanerproductionofenergyefficientandsustainablematerials AT rodriguecyriaquekaze engineeringpropertiesphaseevolutionandmicrostructureoftheironrichaluminosilicatescementbasedcompositescleanerproductionofenergyefficientandsustainablematerials AT juvenalgiogettideutounemaleu engineeringpropertiesphaseevolutionandmicrostructureoftheironrichaluminosilicatescementbasedcompositescleanerproductionofenergyefficientandsustainablematerials AT hktchakoute engineeringpropertiesphaseevolutionandmicrostructureoftheironrichaluminosilicatescementbasedcompositescleanerproductionofenergyefficientandsustainablematerials AT pmeukam engineeringpropertiesphaseevolutionandmicrostructureoftheironrichaluminosilicatescementbasedcompositescleanerproductionofenergyefficientandsustainablematerials AT ekamseu engineeringpropertiesphaseevolutionandmicrostructureoftheironrichaluminosilicatescementbasedcompositescleanerproductionofenergyefficientandsustainablematerials AT cleonelli engineeringpropertiesphaseevolutionandmicrostructureoftheironrichaluminosilicatescementbasedcompositescleanerproductionofenergyefficientandsustainablematerials
_version_	1718405566918819840

Engineering properties, phase evolution and microstructure of the iron-rich aluminosilicates-cement based composites: Cleaner production of energy efficient and sustainable materials

Ejemplares similares