Reactivity of NO2 and CO2 with hardened cement paste containing activated carbon M. Horgnies, I. Dubois-Brugger, N.J. Krou, I. Batonneau-Gener, T. Belin and S. Mignard Eur. Phys. J. Special Topics, 224 9 (2015) 1985-1994 Published online: 30 July 2015 DOI: 10.1140/epjst/e2015-02515-7