Abstract Portland cement manufacture emits 5–7% CO 2, which is responsible for global
warming. Geopolymers minimize CO 2 emission and may be a partial alternative to Portland …

Geopolymers, possessing a semi-crystalline three-dimensional inorganic network generated
by the dissolution and reaction of a solid alumino-silicate source with an activating solution …

This paper reviews about geopolymers fundamental focusing in clay materials. The review
includes the chemistry and structure of geopolymers, reaction mechanism and prime …

Rapid expansion in the worldwide infrastructure sector has led to a massive increase in
construction and demolition waste (CDW), which was inadequately managed from a …

Binders formed through alkali-activation of slags and fly ashes, including 'fly ash
geopolymers', provide appealing properties as binders for low-emissions concrete …

A new type of geopolymer composite was synthesized from two industrial wastes, red mud
(RM) and rice husk ash (RHA), at varying mixing ratios of raw materials and the resulting …

The natural kaolin deposits are crystalline inert with low CaO contents and surface area.
Therefore, kaolin is not a suitable material used to produce Alkali Activated Binders (AAB) …

There are two main models of alkali-activated cements, one is the case of the activation of
slag (Si+ Ca) and the other is activation of metakaolin (Si+ Al). This paper reviews current …

In the last decade, there has been rapid growth in interest in alternative binders, as part of
the toolkit of cement technologies needed to mitigate the carbon footprint associated with the …

Kaolin and alkali activator were mixed with the solids-to-liquid ratios in range of 0.60–1.20
(Al2O3/Na2O molar ratio of 0.63–1.27). Sodium silicate and sodium hydroxide ranged …