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- W2920785899 abstract "Abstract This manuscript is based on the study of pozzolanic activity of the perlite powder (PP) of Hammam Boughrara by the consumption of lime and the hydration of paste made with 75% of PP and 25% of lime. The fresh properties of the cement pastes were defined by normal consistencies, initial and final setting time and autoclave expansions. The manufactures of mortars for flexural and compressive strength , absorption, porosity and carbonation tests were evaluated. Four combinations with a rate of 0%, 10%, 20% and 30% substitution of cement with PP are used in order to compare them with cement without addition. The results showed that the reaction between the lime, silica and alumina of PP gives rise to several hydrates such as calcium silicate hydrate , hydrated calcium aluminates and hydrated gelhenite. This confirms the pozzolanicity of this PP. A substitution rate of PP between 10% and 20%, will increase the mechanical performance over time, densify the transfer matrices of mortars and ensure good resistance to carbonation." @default.
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- W2920785899 date "2019-07-01" @default.
- W2920785899 modified "2023-09-29" @default.
- W2920785899 title "Behavior of perlite-based mortars on physicochemical characteristics, mechanical and carbonation: Case of perlite of Hammam Boughrara" @default.
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- W2920785899 doi "https://doi.org/10.1016/j.jobe.2019.100734" @default.
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