Mortar formulations with bottom ash from biomass combustion

Modolo, Regina Célia Espinosa; Ferreira, Victor; Tarelho, L.A.C.; Labrincha, J.A.; Senff, L.; Silva, L.

doi:10.1016/j.conbuildmat.2013.03.093

Cited by 74 publications

(43 citation statements)

References 26 publications

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“…However, it is recognized that for each valorisation alternative only ash with suitable characteristics can be used, as for example, fly ash in cement [5,8,51], bottom ash in mortars formulations [52], fractions of bottom ash in adhesive mortars [53], and nutrients recycling in soil [2e8,46]. In this context, considering the specifications of the ash to be used in each valorisation alternative, it is important that a proper management of the ashes starts at the thermal plant.…”

Section: Resultsmentioning

confidence: 99%

Characteristics of distinct ash flows in a biomass thermal power plant with bubbling fluidised bed combustor

Tarelho

Teixeira

Silva

et al. 2015

Energy

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Section: Resultsmentioning

confidence: 99%

Characteristics of distinct ash flows in a biomass thermal power plant with bubbling fluidised bed combustor

Tarelho

Teixeira

Silva

et al. 2015

Energy

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“…The biomass ash is rich in quartz silica with constant and homogeneous particle size, according to the literature, which would be suitable for use as small aggregates in building concrete, unidentified fact in the study ash 9 .…”

Section: Introductionmentioning

confidence: 99%

Industrial Wastes as Alternative Mineral Addition in Portland Cement and as Aggregate in Coating Mortars

et al. 2017

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This paper presents an evaluation study of wastes from pulp and paper as well as construction and demolition industries for application in cement-based materials. The alternative raw materials were used as a source of calcium carbonate (CaCO 3 ) and as pozzolanic material (water-reactive SiO 2 ) in partial replacement of Portland cement. In addition to the hydraulic binder, coating mortars were composed by combining the pulp and paper fluidized bed sand residue with construction and demolition wastes, both added as small aggregates. Rheological and mechanical characterization showed that the waste additions changed the behavior of the cement materials, increasing both the viscosity of the pastes (at constant shear stress or rate). The formation of agglomerates in the cement hydration process made the mortars with additions of residues (lime and ash sludge) have an increase in the mechanical strength of the hardened bodies when compared to the mortar (M0W) prepared only with the residues (fluidized bed sand and C & D) as aggregates.

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“…Some of them indicate that may be the wastes could be classified as a pozzolanic material (i.e. cane bagasse ash), but some points that their activity depends significantly on its particle size and fineness (14)(15)(16)(17)(18)(19). Specifically, some uses for lime mud, such as in bricks, cement and pavements could be good alternatives to drain huge amounts of this solid waste.…”

Section: Introductionmentioning

confidence: 99%

Lime mud from cellulose industry as raw material in cement mortars

Modolo¹,

Senff²,

Labrincha³

et al. 2014

Mater. construcc.

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ABSTRACT:This study reports the use of lime mud (LM) in cement-based-mortars. Lime mud is a waste generated in the production of cellulose by the kraft mill process. It is mainly composed of CaCO 3 , a small amount of magnesium carbonate and other trace minerals. Mortars were prepared by adding different amounts of LM (10, 20 and 30% by weight of cement) in dry weight. The mortar compositions were evaluated through rheology and flow table measurements, assuring that all the samples exhibited adequate conditions for testing in both equipments. The hardened state properties were also evaluated through mechanical strengths at 7, 28 and 90 days of curing. Following a waste management solution perspective, this work intend to provide a general evaluation of LM application in cement based mortars, looking at both fresh and hardened properties in order to guarantee that the final application requirements are not hindered. RESUMEN: Lodo de carbonato de la industria de celulosa como materia prima en las morteros de cemento.Este estudio revela el uso de lodo de carbonato (LM) en morteros de cemento. El LM es un residuo compuesto principalmente por CaCO 3 generado en la producción de pasta de papel por el método Kraft. Los morteros se prepararon a partir de la adición de diferentes niveles de LM (10, 20 y 30% en peso de cemento) en peso seco. Las composiciones de los morteros fueron caracterizadas através de mediciones de reología de mesa y de flujo, asegurando que las muestras exhibían condiciones adecuadas para su caracterización en ambos equipamientos. Las propiedades en estado endurecido también se evaluaron através de resistencias mecánicas a los 7, 28 y 90 días de cura. Con objeto de gestión de residuos, este trabajo tiene la intención de proporcionar una visión general de la aplicación de LM en los morteros, haciendo hincapié en las propiedades con el fin de garantizar que los requisitos para su aplicación final no se vean obstaculizados.

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Mortar formulations with bottom ash from biomass combustion

Cited by 74 publications

References 26 publications

Characteristics of distinct ash flows in a biomass thermal power plant with bubbling fluidised bed combustor

Characteristics of distinct ash flows in a biomass thermal power plant with bubbling fluidised bed combustor

Industrial Wastes as Alternative Mineral Addition in Portland Cement and as Aggregate in Coating Mortars

Lime mud from cellulose industry as raw material in cement mortars

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