Effect of a carboxylic acid on the rheological behavior of an aluminous cement paste and consequences on the properties of the hardened material
作者： Y. El Hafiane , A. Smith , J.P. Bonnet , B. Tanouti
DOI: 10.1016/J.JEURCERAMSOC.2004.05.013
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摘要: Abstract Aluminous cement pastes (Secar 71 from Lafarge) containing increasing quantities of acetic acid, HOAc, are prepared (( w HOAc / ) × 100 ranges 0 to 10%). Pastes present a Newtonian behavior. The best dispersion is obtained when the mass content acid with respect equal 0.5%. Microstructural characterizations samples aged for 4 days at 20 °C and 95% relative humidity reveal significant increase in density, reduction porosity as well displacement pore diameter towards low sizes. open porous volume decreases time 25 9 vol.% 6 months old, respectively. addition also has beneficial effect on flexural strength set samples.
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