In this paper, two types of sustainable cementitious composites, geopolymer and magnesium phosphate cement, are introduced. The geopolymer is a type of amorphous alumino-silicate products and magnesium cement is MgO based cementitious material. Geopolymer can be synthesized by polycondensation reaction of geopolymeric precursor, and alkali polysilicates. The MgO cement can be obtained by proper...

Geopolymers have excellent physical and mechanical properties, so they can be used as a substitute for ordinary polymers. are ceramic materials, which exhibit the property of brittleness, limitation in some structural applications. To overcome this shortcoming, new group materials (organic geopolymers) was developed. The aim work is synthesis organic (hybrid) geopolymers. A geopolymer based on ...

In this study, the effect of glass powder (GP) and ground granulated blast furnace slag (GGBS) on the compressive strength of Fly ash based geopolymer concrete has been investigated. The mass ratio of fine aggregate (fA) to coarse aggregate (CA) was maintained constant. NaOH flakes dissolved in water was used as activating liquid and mixed with fly ash (FA) to produce geopolymer paste or cement...

Utilisation of fly ash and Ground Granulated Blast Slag as an alternative material in concrete reduces the use of OPC in concrete. Evolution of geopolymer concrete cured at ambient temperature broadens its suitability and applicability to concrete based structures. This paper presents the mix proportions and outcome of an experimental study on the density and compressive strength of geopolymer ...

The demand for cement is increasing each year, but the manufacture of 1 tonne produces an equal number carbondioxide (CO2) gas which directly related to increase in global warming. Therefore, we need a substitute material, namely geopolymer. This material has relatively superior properties compared cement. However, one drawbacks geopolymers that production costs are more expensive pre-cast beca...

This paper investigates material properties of metakaolin/slag-based geopolymer mortar (GPM), relevant for composite action with conventional Portland cement-based concrete (PCC). GPM formulations different workability (soft and stiff-plastic consistencies) were developed characterized regard to their compressive tensile strength development over time, shrinkage behaviour during hardening under...