Iron-rich laterite-bagasse fibers based geopolymer composite: Mechanical, durability and insulating properties

Nkwaju, R.Y.; Djobo, Jean Noël Yankwa; Nouping, J.N.F.; Mejouyo, Paul William Huisken; Deutou, Juvenal Giogetti Nemaleu; Courard, Luc

doi:10.1016/j.clay.2019.105333

Cited by 82 publications

(33 citation statements)

References 36 publications

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“…It is therefore classified as a clayey laterite in which kaolinite mineral has a well-ordered structure. It is from the initial stage of the geological formation process of laterite [24,34]. The sum of SiO2 and Al2O3 oxides is 70.38 wt.%, and it is known that the interaction of these two oxides is predominant during the formation of the geopolymer microstructure [11,35].…”

Section: Characteristics Of Raw Materialsmentioning

confidence: 99%

“…In addition to studies focused in raw materials, a limited number of investigations have been made on geopolymers based on laterite, despite the wide distribution of this resource throughout the world, and especially in Cameroon [24][25][26][27]. Laterite and lateritic soil constitute 33% of available mineral resources in tropical and subtropical zones of Africa, Australia, India, South-East Asia and South America.…”

Section: Introductionmentioning

confidence: 99%

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Role of Heat-Treated Laterite on the Strengthening of Geopolymer Designed with Laterite as Solid Precursor

Poudeu¹,

Ekani²,

Djangang³

et al. 2019

ACSM

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This paper aims to develop a low-cost, green construction material for low-income house builders. A series of geopolymer samples were prepared by partially substituting the Cameroonian lateritic soil (LS) with different quantities of heat-treated laterite (20~50 wt. %). The chemical composition of the LS was determined through inductively coupled plasma spectroscopy (ICP). The specimens were subjected to thermogravimetric and differential thermal analyses (TGA/DTA), X-ray diffractometry (XRD) and Fourier Transform Infrared Spectroscopy (FTIR). In addition, the compressive strength of dry and wet specimens was measured with a hydroelectric device. The results show that the geo-polymerization and properties like setting time and mechanical strength of the samples were improved through the combined action of the raw LS and the laterite treated at 500-600°C; the crystallized particles from non-clayed minerals and from aggregates of kaolinite also contribute to strength of the samples; crystalline phases formed a tridimensional skeleton in the microstructure of the geopolymer. The research provides a promising composite that can serve as a low-cost construction material with reduced environmental impact.

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Section: Characteristics Of Raw Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Role of Heat-Treated Laterite on the Strengthening of Geopolymer Designed with Laterite as Solid Precursor

Poudeu¹,

Ekani²,

Djangang³

et al. 2019

ACSM

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“…. The first region shows the peaks of the weak absorption bands located at 615, 683, 747 and 990 cm -1 which characterize the stretching and bending vibrations of the Si-O-T bonds (T: Si, Al or Fe [17,18,19]. In fact, many authors show that the peaks around 615 cm -1 can also be attributed to the vibrations of the stretching and bending of the Fe-O bonds of hematite or other iron oxide rich minerals [17,20,21] while that at 747 cm -1 characterizes the vibration modes of the Si-O bonds of the silicate network [22,23].…”

Section: Characterization Of Vamentioning

confidence: 99%

Physical and Mechanical Properties of a Porous Material Obtained by Low Replacement of Volcanic Ash by Aluminum Beverage Cans

Dickson¹,

Noussi

Ebongue

et al. 2021

AIR

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This study focuses on the evaluation of the physical and mechanical properties of a porous material based on a mixture of powder (Volcanic ash /Aluminum Beverage Cans) and a solution of phosphoric acid. Volcanic ash (VA) use was collected in one of the quarries of Mandjo (Cameroon coastal region), crushed, then characterized by XRF, DRX, FTIR and named MaJ. The various polymers obtained are called MaJ0, MaJ2.5, MaJ5, MaJ7.5 and MaJ10 according to the mass content of the additions of the powder from the aluminum beverage cans (ABCs). The physical and mechanical properties of the synthetic products were evaluated by determining the apparent porosity, bulk density, water absorption and compressive strength. The results of this study show that the partial replacement of the powder of VA by that of ABC leads to a reduction in the compressive strength (5.9 - 0.8 MPa) and bulk density (2.56 – 1.32 g/cm3) of the polymers obtained. On the other hand, apparent porosity, water absorption and pore formation within the polymers increases with addition of the powder from the beverage cans. All of these results allow us to agree that the ABCs powder can be used as a blowing agent during the synthesis of phosphate inorganic polymers.

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“…The sources of aluminosilicates that have been used correspond mostly to waste. Among these wastes are coal fly ash [ 27 , 28 , 29 , 30 ], slag waste from metallurgical industries [ 31 , 32 , 33 , 34 ], metakaolin [ 35 , 36 , 37 ], glass wastes [ 38 , 39 , 40 ], bagasse [ 41 , 42 , 43 ] and even hazardous waste [ 44 , 45 , 46 , 47 ]. It is therefore a material that not only reduces the emissions of other materials such as cement [ 48 ] or the extraction of clay for ceramic materials, but also its manufacturing process emits less greenhouse gases [ 49 , 50 ] and uses waste from other industries as raw materials [ 51 ].…”

Section: Introductionmentioning

confidence: 99%

Development of Geopolymers as Substitutes for Traditional Ceramics for Bricks with Chamotte and Biomass Bottom Ash

et al. 2021

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The greater environmental awareness, new environmental regulations and the optimization of resources make possible the development of sustainable materials as substitutes for the traditional materials used in construction. In this work, geopolymers were developed as substitutes to traditional ceramics for brick manufacture, using as raw materials: chamotte, as a source of aluminosilicate, and biomass bottom ashes from the combustion of almond shell and alpeorujo (by-product produced in the extraction of olive oil composed of solid parts of the olive and vegetable fats), as the alkaline activator. For the feasibility study, samples were made of all possible combinations of both residues from 100% chamotte to 100% biomass bottom ash. The tests carried out on these sample families were the usual physical tests for ceramic materials, notably the compression strength test, as well as colorimetric tests. The freezing test was also carried out to study the in-service behavior of the different sample groups. The families with acceptable results were subjected to Fourier transform infrared (FTIR) analysis. The results of the previous tests showed that the geopolymer was indeed created for the final families and that acceptable mechanical and aging properties were obtained according to European standards. Therefore, the possibility of creating geopolymers with chamotte and biomass bottom ashes as substitutes for conventional ceramics was confirmed, developing an economical, sustainable material, without major changes in equipment and of similar quality to those traditionally used for bricks.

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Iron-rich laterite-bagasse fibers based geopolymer composite: Mechanical, durability and insulating properties

Cited by 82 publications

References 36 publications

Role of Heat-Treated Laterite on the Strengthening of Geopolymer Designed with Laterite as Solid Precursor

Role of Heat-Treated Laterite on the Strengthening of Geopolymer Designed with Laterite as Solid Precursor

Physical and Mechanical Properties of a Porous Material Obtained by Low Replacement of Volcanic Ash by Aluminum Beverage Cans

Development of Geopolymers as Substitutes for Traditional Ceramics for Bricks with Chamotte and Biomass Bottom Ash

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