Design of Alkali Pozzolan Cement (APC): Early Compressive Strength
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This paper explores the feasibility of producing Alkali Pozzolan Cement (APC), a cementitious mixture obtained by mixing alkali materials and pozzolanic materials along with some other chemicals. Pozzolanic material used in the experiments is fly ash and the alkali-generating material used is quicklime. The two critical issues related to fly ash-quicklime mixture are slow reaction and slow hardening process. These issues were resolved by adding ‘activating chemicals’ and ‘scaffolding chemicals’. It is seen that early strength of APC can be significantly improved by adding activating and scaffolding chemicals. Finally the paper proposes a development of a multi-dimensional matrix, by varying the percentages of constituent materials, to determine the optimum APC mixture.
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Kulasuriya, Chandana; Vimonsatit, Vanissorn (2012)This paper presents an overview of past research related to the activation of pozzolanic materials and past research related to preparation of alkali pozzolan mortar and concrete by mixing pozzolanic materials and alkali ...
Kulasuriya, Chandana; Vimonsatit, Vanissorn (2012)This paper presents the process of a ‘conceptual investigation’ of possibility of producing ‘Alkali Pozzolan Cement (APC), that can be stored in a dry non-reacting form in air-tight bags. First it gives an overview of the ...
Lee, H.; Vimonsatit, Vanissorn (2014)This paper presents a preliminary study on the properties of lime-pozzolan based cement and the effect of high temperatures on these properties. Conventional lime-pozzolan cements (LPC), alkali-activated LPC and hybrid ...