<abstract xmlns="http://www.w3.org/1999/xhtml">The second largest cause of lung cancer is related to radon (222Rn) and its progenies in our environment. Building materials, such as concrete, contribute to the production of radon gas through the natural decay of 238U from its constituents. The Swedish Cement and Concrete Research Institute (CBI) has examined three concrete recipes where only an additive as well as fly ash were added as single constituents to a reference recipe and compared to a reference concrete. The inputs of an additive as well as a supplementary cementitious material (fly ash) were made as a mean to investigate their potential influence on the radon exhalation rates of the concrete. Measurements were performed with an ATMOS 33 ionizing pulsation chamber for at least five different occasions for each recipe during a 22 month period. The results indicate a reduction of the exhalation rate by approximately 30-35 % for each altered recipe. This means roughly 1.5-2 mSv per year decrease in effective dose to a human using an additive or a supplementary cementitious material such as fly ash in relation to the investigated standard concrete.</abstract>

The second largest cause of lung cancer is related to radon (222Rn) and its progenies in our environment. Building materials, such as concrete, contribute to the production of radon gas through the natural decay of 238U from its constituents. The Swedish Cement and Concrete Research Institute (CBI) has examined three concrete recipes where only an additive as well as fly ash were added as single constituents to a reference recipe and compared to a reference concrete. The inputs of an additive as well as a supplementary cementitious material (fly ash) were made as a mean to investigate their potential influence on the radon exhalation rates of the concrete. Measurements were performed with an ATMOS 33 ionizing pulsation chamber for at least five different occasions for each recipe during a 22 month period. The results indicate a reduction of the exhalation rate by approximately 30-35 % for each altered recipe. This means roughly 1.5-2 mSv per year decrease in effective dose to a human using an additive or a supplementary cementitious material such as fly ash in relation to the investigated standard concrete.

Reduction of Radon Gas in Concrete Using Admixtures and Additives

The Royal Institute of Technology (KTH), Department of Civil and Architectural Engineering, Concrete Structures, The Swedish Cement and Concrete Research Institute (CBI)

The Royal Institute of Technology (KTH), Department of Civil and Architectural Engineering, Concrete Structures

Nordic Concrete Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Reduction of Radon Gas in Concrete Using Admixtures and Additives"}

The second largest cause of lung cancer is related to radon (222Rn) and its progenies in our environment. Building materials, such as concrete, contribute to...

Reduction of Radon Gas in Concrete Using Admixtures and Additives

Pubblicato online: 01 dic 2018

Pagine: 17 - 34

Ricevuto: 06 feb 2018

Accettato: 18 apr 2018

DOI: https://doi.org/10.2478/ncr-2018-0002

Parole chiave
radon, effective dose, concrete, building materials, admixtures, additives, fly ash, health

© 2018 Magnus Döse et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Reduction of Radon Gas in Concrete Using Admixtures and Additives

Pubblicato online: 01 dic 2018

Pagine: 17 - 34

Ricevuto: 06 feb 2018

Accettato: 18 apr 2018

DOI: https://doi.org/10.2478/ncr-2018-0002

Parole chiaveradon, effective dose, concrete, building materials, admixtures, additives, fly ash, health

© 2018 Magnus Döse et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
radon, effective dose, concrete, building materials, admixtures, additives, fly ash, health