This paper presents the mechanical properties of a lightweight geopolymer concrete synthesized by the alkali-activation of a fly ash source (FA) produced by mixing a paste of geopolymer with foam produced by using NCT Foam Generator . Two curing conditions are used, curing at room temperature and curing in an oven with a constant temperature which is 60 oC. Bulk density showed that fly ash-based geopolymer lightweight concrete is light with the density of 1225 kg/m 3 - 1667 kg/m 3 with an acceptable compressive strength of 17.60 MPa for the density of 1667 kg/m 3 .
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Abdullah et al. (2014) studied this question.
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