| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 255827 | Construction and Building Materials | 2016 | 11 Pages |
•A performance study of flash metakaolin-based geopolymer concretes is proposed.•All consistency classes of Portland cement are achievable for geopolymer concrete.•Geopolymer masonry units can be manufactured in an industrial precast plant.•The GP strength is more related to its formulation that it’s aggregates content.•Performance similar to cement were obtained despite a greater porosity.
This study evaluates flash metakaolin geopolymer as an effective binder to replace Portland cement in concrete. A study conducted on the workability of fresh geopolymer concretes has revealed that several applications can be targeted, from fluid to dry concretes: reinforced beam or masonry units directly manufactured in industrial precast plant. Compressive strength of geopolymer concretes showed that these materials could have better mechanical properties than Portland cement concretes, despite a larger porosity. The amount of aggregates (in the range 71–83%) seemed to have a negligible effect on the performance of geopolymer concrete, probably due to the absence of ITZ at the binder-aggregate interface.
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