Abstract
Preliminary tests were carried out to evaluate the influence of poly-amino-phenolic (PAP) oligomers on the absorption of CO2 from air into aqueous saturated solution of Ca(OH)2. Further experiments were then conducted by employing the best additive (PAP2), to facilitate the carbonation of hydrated lime mortars and to identify the most favorable additive content. Mechanical tests and results obtained by infrared spectra suggests that this additive behaves better in accepting, transferring, and giving up CO2 to the lime.
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