Abstract Geopolymer concrete (GPC) reduces the environmental impacts of conventional Portland cement concrete, therefore, this research aims to investigate compressive characteristics GPC by utilizing readily available industrial waste i.e., coal based Flyash in Khyber Pakhtunkhwa province Pakistan. For preparation GPC, Na 2 SiO 3 was used as an activator. After specimens, their were investigat...

Geopolymer composites have been around only for 40 years. Nowadays, they are used in buildings and infrastructures of various kinds. A geopolymer’s main benefit is that it a green material partially made by utilizing waste products. The carbon footprint from geopolymer matrix manufacturing at least two times less than Portland cement manufacturing. Due to the nature process, there high risk shr...

This study discusses strength deterioration during the curing process of fly ash geopolymer and the use of CaSO4·2H2O (gypsum) as a deterioration remedy when the ash was synthesized using a 10M NaOH and Na-silicate solution. The strength decline was mainly due to the widespread formation of nanometer-sized cracks that were related to excessive Na and Si concentrations at an early age. Use of 2 ...

The preparation and characterization of composite materials based on geopolymers obtained from fly ash and epoxy resins are reported for the first time. These materials have been prepared through a synthetic method based on the concurrent reticulation of the organic and inorganic components that allows the formation of hydrogen bonding between the phases, ensuring a very high compatibility betw...

The emergence of high-strength graphene marks a new milestone in the material science field. With only small percentage inclusion into matrix system, this organic nanoparticle could tremendously improve strength vast arrays composites. At same time, there is growing interest using low-cost, lightweight, and high early geopolymer as binder for concrete. Compared to traditional Ordinary Portland ...

Fibre Reinforced Polymer (FRP) bars are effective alternatives to steel bars. This paper performs the shear evaluation of geopolymer concrete beams reinforced with Glass (G) / Basalt (B) FRP Glass/ stirrups. Totally nine GFRP/BFRP/Steel size 100 × 160 1700 mm were cast in geopolymer/conventional and tested by varying ratio span an depth such as 3.6, 3.9, 4.3 a four-point static bending test. Th...

This paper discusses the influence of fiber reinforcement on properties geopolymer concrete composites, based fly ash, ground granulated blast furnace slag and metakaolin. Traditional composites are brittle in nature due to low tensile strength. The inclusion fibrous material alters behavior along with a significant improvement mechanical i.e., toughness, strain flexural Ordinary Portland cemen...

The vast increase in CO2 and waste generation recent decades has been a major obstacle to sustainable development sustainability. In construction industry, the production of ordinary Portland cement is greenhouse gas emitter with almost 8% total world. To address this, Alkali-activated materials geopolymer have more recently introduced as green alternative significantly lowered environmental fo...

Characterizing and understanding the mechanisms underlying geopolymerization are critical in achieving use of sustainable construction material, geopolymer, for widespread commercial production. Non-destructive 1 H NMR relaxometry can provide novel information about as it allows simultaneous detection where water goes how pore structure changes. Coupled with development single-sided devices, me...

The aim of this study is to compare the mechanical and physical properties different geopolymer mortars made with granulated blast furnace slag as a source material, NaOH (8 M) activating solution, three types fine aggregates (air-cooled slag, biomass bottom ashes, silica sand). samples were an aggregate/geopolymer ratio 3/1, (density mercury intrusion porosimetry), (compressive flexural streng...