scholarly journals Cisco de Café como posible material sustituto de arcilla en la fabricación de materiales cerámicos de construcción en el área metropolitana de Cúcuta

Respuestas ◽  
2018 ◽  
Vol 23 (1) ◽  
pp. 27 ◽  
Author(s):  
Jorge Sanchez-Molina ◽  
Diana Carolina Alvarez-Rozo ◽  
John Fredy Gelves-Díaz
Keyword(s):  
Thermal Conductivity ◽  
Circular Economy ◽  
Ceramic Industry ◽  
Production Systems ◽  
Raw Materials ◽  
Construction Materials ◽  
Linear Shrinkage ◽  
Mechanical Resistance ◽  
Clay Material ◽  
Coffee Husk

ResumenLa industria cerámica representa un sector representativo para la economía del Norte de Santander. A pesar del reconocimiento de la calidad de los productos fabricados a nivel nacional e internacional, el desarrollo del sector aún se encuentra en fase de consolidación si se compara con los grandes referentes del mundo, entre estos, la industria cerámica Española e Italiana. En la búsqueda de alternativas que permitan entrar en esta dinámica global, el equipo de investigación realizó algunas actividades encaminadas a aplicar el concepto de la economía circular (reutilización de residuos a los sistemas de producción) al proceso cerámico regional. En este caso particular se ha propuesto la reutilización del cisco de café (residuo de agroindustria regional) como sustituto del material arcilloso en la fabricación de materiales cerámicos de construcción. El trabajo experimental se desarrolló a nivel de laboratorio, usando la extrusión como técnica de conformado. Las materias primas fueron caracterizadas mediante fluorescencia y difracción de rayos X (FRX/DRX), así como por análisis térmico (TG/DSC); las propiedades tecnológicas del cerámico evaluadas fueron: la contracción lineal de secado/cocción, porcentaje de absorción de agua, resistencia mecánica a la flexión y resistencia a la abrasión profunda. Al material de mejor comportamiento físico cerámico le fue evaluada la conductividad térmica mediante un método transitorio de flujo de calor. Los resultados obtenidos evidencian el potencial del cisco para reducir la conductividad térmica del material y el aporte calórico al sistema. La utilización del cisco de café permite obtener cerámicos para uso como revestimientos y pavimento de tipo residencial.Palabras clave: Caracterización, cisco de café, economía circular, materiales cerámicos.AbtractThe ceramic industry is a representative sector for the economy of Norte de Santander (Colombia). Despite the recognition of the quality of the products manufactured nationally and internationally, the development of the sector is still in the consolidation phase if it is compared with the major references in the world, including the Spanish and Italian ceramic industry. In the search for   alternatives that allow entering this global dynamic of being recognized, the work team has carried out some activities aimed at applying the concept of the circular economy (reuse of waste to production systems) to the regional ceramic process. In this   particular case, the reuse of coffee husk (waste from regional agro-industry) as a substitute for clay material in the manufacture of ceramic construction materials has been proposed. The experimental work was developed at the laboratory level, using extrusion as a forming technique. The raw materials were characterized by fluorescence and X-ray diffraction (XRF / XRD), as well as by thermal analysis (TG / DSC). The technological properties of the ceramic evaluated were the linear shrinkage of drying / firing, percentage of water absorption, mechanical resistance to bending and resistance to deep abrasion. To the material with the best ceramic physical behavior, the thermal conductivity was evaluated by means of a transient heat flow method. The results obtained show the potential of the coffee husk to reduce the thermal conductivity of the material and the caloric contribution to the system. The use of coffee husk allows to obtain ceramics for use as coatings and residential type pavement.Keywords: Characterization, coffee husk, circular economy, ceramic materialsResumoA indústria cerâmica representa um setor representativo para a economia do Norte de Santander. Apesar do reconhecimento da qualidade dos produtos fabricados nos níveis nacionais e internacionais, o desenvolvimento do setor ainda está em fase de consolidação, quando comparado com as grandes figuras do mundo, entre eles, a indústria cerâmica espanhol e italiano. Na busca de alternativas que permitissem entrar nessa dinâmica global, a equipe de pesquisa realizou algumas atividades voltadas à aplicação do conceito de economia circular (reutilização de resíduos aos sistemas produtivos) ao processo cerâmico regional. Neste caso particular, tem sido proposto o reuso do café cisco (resíduo da agroindústria regional) como substituto do material argiloso na fabricação de materiais cerâmicos de construção. O trabalho experimental foi desenvolvido em nível de laboratório, usando a extrusão como técnica de formação. As matérias-primas foram caracterizadas por fluorescência e difração de raios-X (FRX / DRX), bem como por análise térmica (TG / DSC); As propriedades tecnológicas das cerâmicas avaliadas foram: retração linear de secagem / cozimento, porcentagem de absorção de água, resistência mecânica à flexão e resistência à abrasão profunda. Para o material com melhor comportamento físico cerâmico, a condutividade térmica foi avaliada por meio de um método de fluxo de calor transiente. Os resultados obtidos mostram o potencial do cisco para reduzir a condutividade térmica do material e a contribuição calórica para o sistema. O uso do café cisco permite obter cerâmicas para uso como revestimentos e pavimentos residenciais.Palabras Chave: Caracterização, cisco de café, economia circular, materiais cerâmicos.

scholarly journals Eco-Compatible Construction Materials Containing Ceramic Sludge and Packaging Glass Cullet

2021 ◽  
Vol 11 (8) ◽  
pp. 3545
Author(s):  
Fernanda Andreola ◽  
Isabella Lancellotti ◽  
Paolo Pozzi ◽  
Luisa Barbieri
Keyword(s):  
Raw Materials ◽  
Construction Materials ◽  
Treatment Plant ◽  
Glass Ceramics ◽  
Chemical Properties ◽  
Linear Shrinkage ◽  
Glass Cullet ◽  
Commercial Glass ◽  
Packaging Glass ◽  
And Chemical Properties

This research reports results of eco-compatible building material obtained without natural raw materials. A mixture of sludge from a ceramic wastewater treatment plant and glass cullet from the urban collection was used to obtain high sintered products suitable to be used as covering floor/wall tiles in buildings. The fired samples were tested by water absorption, linear shrinkage, apparent density, and mechanical and chemical properties. Satisfactory results were achieved from densification properties and SEM/XRD analyses showed a compact polycrystalline microstructure with albite and wollastonite embedded in the glassy phase, similar to other commercial glass-ceramics. Besides, the products were obtained with a reduction of 200 °C with respect to the firing temperatures of commercial ones. Additionally, the realized materials were undergone to leaching test following Italian regulation to evaluate the mobility of hazardous ions present into the sludge. The data obtained verified that after thermal treatment the heavy metals were immobilized into the ceramic matrix without further environmental impact for the product use. The results of the research confirm that this valorization of matter using only residues produces glass ceramics high sintered suitable to be used as tile with technological properties similar or higher than commercial ones.

scholarly journals Incorporation of sugarcane bagasse ash waste as an alternative raw material for red ceramic

Cerâmica ◽  
2013 ◽  
Vol 59 (351) ◽  
pp. 473-480 ◽  
Author(s):  
K. C. P. Faria ◽  
J. N. F. Holanda
Keyword(s):  
Sugarcane Bagasse ◽  
Raw Materials ◽  
Phase Evolution ◽  
Linear Shrinkage ◽  
Raw Material ◽  
Partial Replacement ◽  
Clay Material ◽  
Natural Clay ◽  
Materials Used ◽  
Sugarcane Industry

The sugarcane industry generates huge amounts of sugarcane bagasse ashes (SCBA). This work investigates the incorporation of a SCBA waste as an alternative raw material into a clay body, replacing natural clay material by up to 20 wt.%. Clay ceramic pieces were produced by uniaxial pressing and fired at temperatures varying from 700 to 1100 ºC. The technological properties of the clay ceramic pieces (linear shrinkage, apparent density, water absorption, and tensile strength) as function of the firing temperature and waste addition are investigated. The phase evolution during firing was followed by X-ray diffraction. The results showed that the SCBA waste could be incorporated into red ceramics (bricks and roofing tiles) in partial replacement for natural clay material. These results confirm the feasibility of valorisation of SCBA waste to produce red ceramic. This use of SCBA can also contribute greatly to reducing the environmental problems of the sugarcane industry, and also save the sources of natural raw materials used in the ceramic industry.

scholarly journals Physical and mechanical properties of ceramics from clays of the west of S. Paulo State, Brazil

Cerâmica ◽  
2004 ◽  
Vol 50 (315) ◽  
pp. 268-273 ◽  
Author(s):  
S. R. Teixeira ◽  
S. A. de Souza ◽  
M. A. L. Nobre
Keyword(s):  
Ceramic Industry ◽  
Raw Materials ◽  
Physical And Mechanical Properties ◽  
Linear Shrinkage ◽  
Industrial Applications ◽  
Structural Ceramic ◽  
The West ◽  
Paulo State ◽  
Apparent Color ◽  
Dry Pressing

Clays and ceramics of interest to the structural ceramic industry were characterized. Some physical properties of ceramic masses formulated from artificial deposits exploited by the local industry were also analyzed. All materials investigated exhibit high contents of fine components (< 2 mum) and significant plasticity that is compatible with the presence of a great amount of clay minerals. Ceramic probes were prepared by dry pressing and fired at around 855 °C. Flexural strength, linear shrinkage, water absorption, apparent color and weight loss were measured. In addition, the industrial applications of these raw materials were reviewed and newest potential uses proposed.

scholarly journals Potential Uses of Copper Wastes in the Building Sector: Inertization and Added Value Solutions

2021 ◽  
Vol 5 (1) ◽  
pp. 25
Author(s):  
Santiago Rosado ◽  
Lidia Gullón ◽  
Luis Felipe Mazadiego Martínez ◽  
Juan Francisco Llamas Borrajo
Keyword(s):  
Particle Size ◽  
Circular Economy ◽  
Raw Materials ◽  
Construction Materials ◽  
Mining Activity ◽  
Added Value ◽  
The European Union ◽  
Leaching Behavior ◽  
Reactive Property ◽  
New Applications

Mining activity is the second biggest producer of waste in the European Union (EU), so to develop processes that allow the reuse of waste and the consequent creation of markets for these secondary raw materials are relevant for a desirable transition to a circular economy. Copper waste such as cakes, tailings, pyrite roasting residues, or slags present very different physical characteristics and hazards. There are two important aspects to consider for the residue of hazardous determination and its reuse: the particle size and the leaching behavior. Also, the reactive or non-reactive property of the waste depends on their origin, which is important for new applications. Based on these parameters (and other specifics for each application), the intention of this paper is to review and study the different applications of copper residues, aiming for new possibilities of cement-based construction materials with added value that allow to economically justify the use of cement.

Study by Weibull Statistics of Ceramic Products from Rio Grande do Norte, Brazil

2012 ◽  
Vol 727-728 ◽  
pp. 1457-1461
Author(s):  
Elcio Correia de Souza Tavares ◽  
Claudia P.T. Cruz ◽  
Uilame Umbelino Gomes
Keyword(s):  
Mechanical Strength ◽  
Ceramic Industry ◽  
Raw Materials ◽  
Rio Grande ◽  
Linear Shrinkage ◽  
Strength Test ◽  
International Standards ◽  
Weibull Statistics ◽  
Inappropriate Use

The ceramic sector is important to the economy in Rio Grande do Norte, Brazil. Overall, however, the manufacturing process is imperfect; leading to inappropriate use of raw materials, waste of energy, environmental degradation, nonconformity to the Brazilian and international standards, etc. So, its crucial improves the produced bricks. This work aims to contribute to quality control of the ceramic industry, raising the values of physical properties of their products. The main parameters that influence these values were determined by Weibull statistics. Ceramics were studied by measuring porosity, water absorption, linear shrinkage, bulk density and mechanical strength. Mechanical strength test data resulted in Weibull distributions. The Weibull statistic parameter was calculated to best evaluations of ceramic quality. The results support our initial considerations about current stands of low quality of ceramic products from Rio Grande do Norte and underline the importance of testing and improving these products.

scholarly journals Development of Scheelite Tailings-Based Ceramic Formulations with the Potential to Manufacture Porcelain Tiles, Semi-Stoneware and Stoneware

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5122 ◽  
Author(s):  
Julliana Marques R. de Figueirêdo ◽  
Fabiana Pereira da Costa ◽  
Jucielle Veras Fernandes ◽  
Alisson Mendes Rodrigues ◽  
Gelmires de Araújo Neves ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Electron Microscope ◽  
Ceramic Industry ◽  
Linear Shrinkage ◽  
Mechanical Resistance ◽  
Sem Images ◽  
Porcelain Tiles ◽  
Measured Water ◽  
Scanning Electron ◽  
Mineralogical Phases

New ceramic formulations based on scheelite tailing were developed, and their potential in the ceramic industry was evaluated. Green bodies with different contents of scheelite tailing (0–8 wt%) were sintered (1150 °C, 1200 °C, and 1250 °C) and characterized in terms of the main mineralogical phases, microstructure, and physico-mechanical properties. The mullite was the main phase identified in all sintered temperatures. This result was also ratified with the aid of scanning electron microscope (SEM) images, in which small needles of the mullite were detected. The presence of mullite is required because it contributes to increasing the mechanical resistance of the material. The physico-mechanical properties measured (water absorption, linear shrinkage, apparent porosity, and flexural strength) were compared to the ISO 13006, and the samples sintered at 1150 °C presented potential to be used as semi-stoneware, while those sintered at 1200 °C and 1250 °C can be employed stoneware and porcelain tiles, respectively.

scholarly journals Waste to Wealth Strategy: Preparation and Properties of Lightweight Al2O3-SiO2-Rich Castables Using Aluminum Dross Waste

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7803
Author(s):  
Nan Su ◽  
Zishen Li ◽  
Youdong Ding ◽  
Hongliang Yang ◽  
Jingzhou Zhang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Industrial Waste ◽  
Raw Materials ◽  
Linear Shrinkage ◽  
Economic Benefits ◽  
Furnace Lining ◽  
Aluminum Dross ◽  
Aggregate Fraction ◽  
Refractory Castables ◽  
Cold Crushing Strength

Aluminum dross is a well-known industrial waste generated in the aluminium industry, and its recycling and reuse is still a worldwide issue. Herein, aluminum dross waste (ADW) was recycled to progressively replace the aggregate fraction of clay at 70, 75, 80, 85, and 90 wt% for the fabrication of Al2O3-SiO2-rich porous castable refractories. Their physical properties and mechanical behavior were assessed by the measurement of linear shrinkage rate, bulk density, apparent porosity, cold crushing strength, and thermal conductivity. The microstructure and phase evolutions were analyzed via scanning electron microscopy (SEM) and X-ray diffraction (XRD). The incorporation of 85 wt% of ADW allowed the development of a waste-containing conventional refractory castable with improved properties as compared to those of the other samples. The sustainable refractory castable exhibited decent thermal conductivity and physical and mechanical characteristics, and is suitable for application as reheating furnace lining. It is a “green” practice to partially replace the traditional raw materials with industrial waste in the manufacture of conventional refractory castables and provides environmental and economic benefits.

scholarly journals Foams based on industrial waste

2020 ◽  
Vol 12 (4) ◽  
Author(s):  
Nadezhda Manakova
Keyword(s):  
Thermal Conductivity ◽  
Thermal Insulation ◽  
Building Materials ◽  
Raw Materials ◽  
Foam Glass ◽  
Construction Materials ◽  
Economic Damage ◽  
Mining Areas ◽  
Wide Range ◽  
Microscopic Studies

Substantial volumes of tailings and waste rocks placed in dumps create serious environmental and economic damage in mining areas and adjacent territories. The development of technologies for processing waste into heat-insulating building materials (foam glass) will make it possible to reduce the burden on the environment, as well as reduce the cost of finished building products. The article substantiates the possibility of obtaining block foamed materials for the production of heat-insulating materials based on man-made waste using low-temperature technology. The author investigated the ways of improving the operational properties of foam silicates by introducing modifying additives (apatite-nepheline waste, fly ash). To obtain foam silicates based on silica-containing waste, a liquid glass composition was prepared, into which additives were introduced. After molding and drying, the samples were swollen. Physical, chemical and thermal properties of foamed silicate materials made of silica-containing raw materials were determined taking into account the requirements of GOST for thermal insulation construction materials. To determine the thermal conductivity coefficient, an ITP-MG 4 electronic thermal conductivity meter was used. Microscopic studies were carried out using a SEM LEO 420 scanning microscope. The author of the article proposes the optimal compositions and conditions for obtaining foam materials that meet the regulatory requirements for materials and products for building insulation. Foamed materials with density up to 0.55 g/cm3, strength 5.5 MPa, water absorption 15–22 %, thermal conductivity 0.09–0.104 W•m/K were obtained. Foam glass materials have a wide range of properties: non-flammable, environmentally friendly, have a long service life, and are not subject to mold deterioration. The obtained materials can be recommended for use as thermal insulation in the construction and reconstruction of industrial and civil buildings and structures.

scholarly journals Fundamentals of Building Deconstruction as a Circular Economy Strategy for the Reuse of Construction Materials

2021 ◽  
Vol 11 (3) ◽  
pp. 939
Author(s):  
Gaetano Bertino ◽  
Johannes Kisser ◽  
Julia Zeilinger ◽  
Guenter Langergraber ◽  
Tatjana Fischer ◽  
...  
Keyword(s):  
Circular Economy ◽  
Business Models ◽  
Planning Process ◽  
Raw Materials ◽  
Early Stage ◽  
Construction Materials ◽  
Use Of Resources ◽  
Key Points ◽  
Building Components

The construction industry is one of the most environmentally detrimental industries in the world, impacting directly the use of raw materials, their determination of use involving the whole lifecycle, as well as all their surrounding environment. However, within the building sector, the transition from a linear to a circular economy is still at an early stage. Business models need to be reconsidered to include new and improved methods and innovative services that could lead to a net reduction in the use of resources and minimizing the waste disposed on landfills. In this context, an important role in buildings’ circularity is “deconstruction”, which is understood as a well-considered selective dismantlement of building components, in prevision of a future reuse, repurposing, or recycling. It represents a sustainable alternative to common demolition, which tends to be an arbitrary and destructive process, and although faster and cheaper, it typically creates a substantial amount of waste. The purpose of this article is to analyze the deconstruction potential of buildings and the strategies to apply in order to keep the impacts on the urban environment low. The article aims to facilitate the implementation of circular economy strategies for buildings by proposing common principles for deconstruction as a sustainable alternative to demolition and defining the key points to be applied during the design and planning process regardless of the type of construction system or material used.

Influence of Holding Time on the Properties of Alumina-Aluminium Titanate Fiber

2010 ◽  
Vol 105-106 ◽  
pp. 9-11
Author(s):  
Jian Er Zhou ◽  
Xue Bing Hu ◽  
Shuang Hua Wang ◽  
Yong Qing Wang ◽  
Xiao Zhen Zhang
Keyword(s):  
Thermal Conductivity ◽  
Aspect Ratio ◽  
Bulk Density ◽  
Thermal Conductivity Coefficient ◽  
Raw Materials ◽  
Sol Gel ◽  
Linear Shrinkage ◽  
Holding Time ◽  
Aluminum Titanate ◽  
Aluminium Titanate

Using aluminum chloride, aluminite powders and butyl titanate as raw materials, alumina- aluminum titanate fiber was prepared by sol-gel method at 1200°C. The influences of the holding time on the aspect ratio, the bulk density, the thermal conductivity coefficient and the heating linear shrinkage of the fiber were studied systemically. The results show that the holding time has an important effect on the properties of the fiber. With the increase of the holding time from 0 h to 3 h, the aspect ratio of the fiber decreases from 870 to 210 and the bulk density of the fiber adds from 352 Kg•m-3 to 432 Kg•m-3. Furthermore, the thermal conductivity coefficient of the fiber keeps rising from 0.162 W•m-1•K-1 to 0.199 W•m-1•K-1 and the heating linear shrinkage of the fiber decreases from 2% to 1.82%.

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