Reactivity of volatile organic compounds with hydrated cement paste containing activated carbon

被引：24

作者：

Krou, N. J. ^{[1
]}

Batonneau-Gener, I. ^{[1
]}

Belin, T. ^{[1
]}

Mignard, S. ^{[1
]}

Javierre, I. ^{[2
]}

Dubois-Brugger, I. ^{[2
]}

Horgnies, M. ^{[2
]}

机构：

[1] Univ Poitiers, Inst Chim Milieux & Mat Poitiers, UMR CNRS 7285, F-86022 Poitiers, France

[2] Lafarge Ctr Rech, F-38291 St Quentin Fallavier, France

来源：

BUILDING AND ENVIRONMENT | 2015年 / 87卷

关键词：

Indoor air quality; Building products; Cement paste; Volatile organic compounds (VOC); VOC; ACETALDEHYDE; ADSORPTION; SCIENCE; AREA;

D O I：

10.1016/j.buildenv.2015.01.025

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The Volatile Organic Compounds (VOCs) released into indoor air of confined spaces increase the risk of pulmonary diseases for numerous people. This study is a first approach to determine the adsorption of hardened cement pastes exposed to VOCs and aims to enhance this phenomenon by using activated carbon as cement additive. The entrapment of acetaldehyde by the cement-based hydrates is quantified and is confirmed by testing hardened cement paste. However, the abatement of acetaldehyde tends to decrease due to carbonation or in presence of a significant relative humidity. The adsorption of toluene by reference cement pastes is negligible but is significantly improved by the addition of a small fraction of activated carbon powder into the mix. The desorption of toluene is not detected after the heating of the hardened cement pastes until 50 degrees C, justifying the study of a new range of construction materials limiting the VOCs-based air-pollution in confined spaces. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：102 / 107

页数：6

共 28 条

[1] Composition and density of nanoscale calcium-silicate-hydrate in cement
Allen, Andrew J.
Thomas, Jeffrey J.
Jennings, Hamlin M.
[J]. NATURE MATERIALS, 2007, 6 (04) : 311 - 316
[2] [Anonymous], 2003, WHO WORK GROUP M BON
[3] Relationship between outdoor and indoor air quality in eight French schools
Blondeau, P
Iordache, V
Poupard, O
Genin, D
Allard, F
[J]. INDOOR AIR, 2005, 15 (01) : 2 - 12
[4] Boehm H.P., 1966, CHEM IDENTIFICATION, V16,, P179
[5] Comparison of three active carbons using LSER modeling: prediction of their selectivity towards pairs of volatile organic compounds (VOCs)
Burg, P
Fydrych, P
Bimer, J
Salbut, PD
Jankowska, A
[J]. CARBON, 2002, 40 (01) : 73 - 80
[6] Vapor phase reactions of acetaldehyde over type X zeolites
Chang, YC
Ko, AN
[J]. APPLIED CATALYSIS A-GENERAL, 2000, 190 (1-2) : 149 - 155
[7] Area-specific airflow rates for evaluating the impacts of VOC emissions in US single-family homes
Chen, Wenhao
Persily, Andrew K.
Hodgson, Alfred T.
Offermann, Francis J.
Poppendieck, Dustin
Kumagai, Kazukiyo
[J]. BUILDING AND ENVIRONMENT, 2014, 71 : 204 - 211
[8] Overview of the fundamental reactions and degradation mechanisms of NOx storage/reduction catalysts
Epling, WS
Campbell, LE
Yezerets, A
Currier, NW
Parks, JE
[J]. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 2004, 46 (02): : 163 - 245
[9] Experimental evaluation of VOC removal efficiency of a coconut shell activated carbon filter for indoor air quality enhancement
Gallego, E.
Roca, F. J.
Perales, J. F.
Guardino, X.
[J]. BUILDING AND ENVIRONMENT, 2013, 67 : 14 - 25
[10] NOx de-pollution by hardened concrete and the influence of activated charcoal additions
Horgnies, M.
Dubois-Brugger, I.
Gartner, E. M.
[J]. CEMENT AND CONCRETE RESEARCH, 2012, 42 (10) : 1348 - 1355

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