Influence of fired clay brick waste additions on the durability of mortars

Schackow, Adilson; Stringari, D.; Senff, L.; Correia, Sivaldo Leite; Segadães, Ana M.

doi:10.1016/j.cemconcomp.2015.04.019

Cited by 131 publications

(85 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…First, the finest GP particles can fill the gap left by other components, lessening the pore volume in the hardened matrix. On the other hand, the reaction between the amorphous compounds, like alumina and silica, with portlandite produces silicate/aluminate hydrates similar to those produced as a result of cement hydration, which is known as the pozzolanic effect [41].…”

Section: Compressive and Flexural Strengthmentioning

confidence: 99%

Use of Waste Glass as A Replacement for Raw Materials in Mortars with a Lower Environmental Impact

et al. 2019

View full text Add to dashboard Cite

Glass waste used in mortars or concretes behaves similar to cement, with resulting environmental benefits. In this light, the behavior of glass powder of various particle sizes has been analyzed as a cement replacement in mortars, in an attempt to minimize the loss of strength and durability, and maximize the amount of materials replaced. The dry density, water accessible porosity, water absorption by immersion, capillary absorption coefficient, ultrasonic pulse velocity and both compressive and flexural strengths were studied in the mortars. Furthermore, a statistical analysis of the obtained results and a greenhouse gases assessment were also performed. In view of the results obtained, glass powder of 38 microns allows up to 30% of the cement to be replaced, due to the filler effect combined with its pozzolanic activity. Moreover, it has been observed that glass powder size is one of the factors with the greatest influence among the properties of porosity, absorption and capillarity. On the other hand, in the mechanical properties, this factor does not contribute significantly more than the amount of glass powder. Finally, the greenhouse gasses analysis shows that the incorporation of glass powder reduces the CO2 emissions associated with mortar up to 29.47%.

show abstract

Section: Compressive and Flexural Strengthmentioning

confidence: 99%

Use of Waste Glass as A Replacement for Raw Materials in Mortars with a Lower Environmental Impact

et al. 2019

View full text Add to dashboard Cite

show abstract

“…For those reasons, the research about new suitable cement additions is still the topic of many studies [7,8]. Among those additions, the study of brick powder as clinker replacement has been the topic of recent researches [9][10][11][12]. In the abovementioned studies, the effects of brick powder in cement-based materials properties have overall been studied in the short-term (up to 120 hardening days), and this addition came from construction and demolition wastes, as well as from defective bricks rejected along the manufacturing works.…”

Section: Ofmentioning

confidence: 99%

Long-term effects of waste brick powder addition in the microstructure and service properties of mortars

Ortega

Letelier

Solas

et al. 2018

Construction and Building Materials

108

View full text Add to dashboard Cite

One way to reach a more sustainable cement industry is replacing clinker by additions, such as waste brick powder. The objective of this research is to analyse the influence in the long-term (until 400 days) of waste brick powder in the microstructure, durability and mechanical properties of mortars which incorporate up to 20% of this addition as a clinker replacement. The microstructure has been studied with the non-destructive impedance spectroscopy technique. According to the obtained results, mortars with 10% and 20% of brick powder, showed good service properties in the long-term, even better than those made with ordinary Portland cement.

show abstract

“…Además, este residuo se genera también durante su fabricación (Ercikdi et al 2015). Por ejemplo, en Brasil, la industria ladrillera genera una cantidad considerables de ladrillos no conformes (principalmente debido a la falta de homogeneidad de las materias primas, resultado en la aparición de grietas y roturas) (Schackow et al 2015). Por otra parte, en países como China, en los últimos años, sus actividades de demolición y reconstrucción han generado una gran cantidad de residuos de ladrillos que alcanzan los 0,4 billones de toneladas anuales (Li et al 2016).…”

Section: Introductionunclassified

“…Sin embargo, en estado crudo, las arcillas no presentan actividad puzolanica, por lo que deben ser sometidas a un tratamiento térmico para permitir a este material pasar de un estado cristalino a un estado más o menos amorfo mediante la deshidroxilación (Mohammed, 2017). Para lograr este fenómeno (evaporación del agua ligada químicamente en la arcilla), estas deben de someterse a temperaturas entre 500 °C y 900 °C donde se da la formación de metacaolín y materiales amorfos (Ercikdi et al 2015;Schackow et al 2015). Por estas características, el polvo de ladrillo de arcilla podría emplearse como un material cementiceo Revista EIA Rev.EIA./ Universidad EIA zados.…”

Section: Introductionunclassified

Influencia del residuo de mampostería en la resistencia de concretos autocompactantes al ataque por sulfato de sodio

Urrego¹,

Delvasto

2020

reveia

View full text Add to dashboard Cite

En este trabajo se presentan resultados de un estudio experimental sobre la resistencia al ataque externo de sulfato de sodio (Na2SO4) en concretos autocompactantes (CACs) con residuo de mampostería (RM). Los CACs presentaban un contenido de agua constante de 202,5 kg/m3 y diferentes volúmenes de RM (0%, 25% Y 50%) como reemplazo parcial de cemento Portland (OPC) expuesto a una solución de sulfato de sodio al 5%. Las propiedades en estado fresco como fluidez, capacidad de paso y resistencia a la segregación se evaluaron mediante el flujo de asentamiento, embudo en V y caja en L. En estado endurecido, la resistencia a la compresión y expansión fueron determinadas. Por otra parte, técnicas de difracción de rayos X (DRX), microscopia electrónica de barrido (MEB) y espectroscopia de Infrarrojo con transformada de Fourier (FTIR) fueron aplicadas en pastas para investigar los efectos de los sulfatos sobre la microestructura. Los resultados mostraron que todas las mezclas cumplen las propiedades en estado fresco, además se encontró que cuando los CACs son inmersos en la solución de sulfato de sodio, el RM puede mejorar la resistencia de los CACs al ataque por sulfatos en comparación con el CAC solo de OPC.

show abstract

Influence of fired clay brick waste additions on the durability of mortars

Cited by 131 publications

References 21 publications

Use of Waste Glass as A Replacement for Raw Materials in Mortars with a Lower Environmental Impact

Use of Waste Glass as A Replacement for Raw Materials in Mortars with a Lower Environmental Impact

Long-term effects of waste brick powder addition in the microstructure and service properties of mortars

Influencia del residuo de mampostería en la resistencia de concretos autocompactantes al ataque por sulfato de sodio

Contact Info

Product

Resources

About