Sustainable development and climate change initiatives

Damtoft, J. S.; Łukasik, Joanna M.; Herfort, Duncan; Sorrentino, Daniela; Gartner, E.M.

doi:10.1016/j.cemconres.2007.09.008

Cited by 866 publications

(429 citation statements)

References 8 publications

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“…(Damtoft et al, 2008) have calculated that 0.53 t of CO2 per ton of clinker is released along with an average of 0.34 t CO2 per ton of cement associated with the energy consumption in the production process. Alkali activated materials (AMMs) are believed to be the most promising substitute material for OPC due to the much lower CO2 emissions compared to OPC.…”

Section: Introductionmentioning

confidence: 99%

Influence of the carbonate-free clay calcination temperature and curing conditions on the properties of alkali-activated mortar

Būmanis

Bajāre

Korjakins

2014

Proceedings of the International Conference „Innovative Materials, Structures and Technologies”

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Abstract. Alkali-activated materials (AAMs) are one of the most perspective alternatives to the traditional Portland cement based materials. AAMs could reduce the environmental pollution and greenhouse gas emission due to the lower heat consumption in production (up to 80% compared to the ordinary Portland cement). In the current research alkaliactivated mortar was developed from the locally available low-carbonate Illite clay. Experimental work consisted of Illite clay calcination at different temperatures and regimes (from 500-800°C) and incorporation of the obtained material into the mixture of alkali-activated mortar. Four curing regimes were applied to alkali-activated mortar. The results indicate that hardened mortar properties are mainly affected by curing temperature and regime and the compressive strength up to 28.8MPa could be achieved for the mortar samples aged 2 months.

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Section: Introductionmentioning

confidence: 99%

Influence of the carbonate-free clay calcination temperature and curing conditions on the properties of alkali-activated mortar

Būmanis

Bajāre

Korjakins

2014

Proceedings of the International Conference „Innovative Materials, Structures and Technologies”

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“…The combined decarbonation, thermal and electrical-power CO 2 emissions may total as much as 0.97 tons of CO 2 per average ton of Portland Cement (OPC) produced. Thus, the cement industry contributes around 6% of all CO 2 anthropogenic emissions [1,2]. Belite-rich cements were proposed as environmentally friendly materials [3,4].…”

Section: Introductionmentioning

confidence: 99%

Aluminum-rich belite sulfoaluminate cements: Clinkering and early age hydration

Martín-Sedeño¹,

Cuberos²,

Torre³

et al. 2010

Cement and Concrete Research

132

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“…The emissions are due both to the use of limestone as raw material and of fossil fuels to reach the required temperatures for the clinkering process. For this reason, the Portland cement (OPC) industry has been considered responsible for approximately 6-8% of the global anthropogenic CO 2 emissions (Yoon et al, 2014;Damtoft et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Hybrid cement based on the alkali activation of by-products of coal

Rivera

Mejía

Gutiérrez

et al. 2014

Revista de la Construcción

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Manuscript Code: 0291 Date of reception/acceptation: 01jan2014/01aug2014Resumen Este estudio se propuso la producción de un material cementicio alternativo de bajo impacto ambiental a partir de la evaluación de dos subproductos de la combustión del carbón. Se elaboraron dos cementos híbridos basados en la activación alcalina de una ceniza volante (FA) y una escoria de parrilla (BS) y adicionados con cemento portland (OPC) hasta en un 30%. FA y BS contienen hasta un 16% de inquemados. Para la optimización de la resistencia a la compresión se utilizó la Metodología de Superficie de Respuesta (MSR). El geopolímero BS alcanzo alta resistencia a la compresión (>100 MPa a 28 días) y el geopolímero FA reporto 30 MPa al aplicar curado térmico. La adición de OPC contribuyo a modificar el método de curado. En el caso del hibrido basado en FA (HFA), se observó un incremento significativo en la resistencia a niveles hasta de 65 MPa a 28 días sin aplicar el curado térmico. AbstractThis study focuses on the production of an alternative cementitious material with low environmental impact through the evaluation of two-coal combustion by-products. Hybrid cements based on the alkali activation of fly ash, (FA) and boiler slag (BS) blend with a proportion of Portland cement (OPC) up to 30% were produced. FA and BS contain an unburned material up to 16%. Response Surface Methodology (RSM) was used to optimize the compressive strength. BS geopolymer achieved high compressive strength (>100 MPa at 28 days) and FA geopolymer reached 30 MPa with thermal curing. The addition of OPC helped modify the curing method. In the case of hybrid based on FA (HFA), there was a significant increase in the compressive strength with levels ranging up to 65 MPa at 28 days without requiring a thermal curing.Palabras claves: Cemento híbrido, ceniza volante, escoria de parrilla, materiales activados alcalinamente, baja huella de carbono.

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Sustainable development and climate change initiatives

Cited by 866 publications

References 8 publications

Influence of the carbonate-free clay calcination temperature and curing conditions on the properties of alkali-activated mortar

Influence of the carbonate-free clay calcination temperature and curing conditions on the properties of alkali-activated mortar

Aluminum-rich belite sulfoaluminate cements: Clinkering and early age hydration

Hybrid cement based on the alkali activation of by-products of coal

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