Effect of Water-to-Geopolymer Binder Ratio on the Production of Fly Ash Based Geopolymer Concrete

Patankar, Subhash V.; Jamkar, Sanjay S.; Ghugal, Yuwaraj M.

doi:10.47893/ijatce.2012.1048

Cited by 12 publications

(6 citation statements)

References 5 publications

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“…It implied that the tested cubes compressive strength of free cement mortars was inversely proportional with the water to binder ratio (H2O:B) which was similar to that of water to cement ratio in cement mortar. This finding was agree with the previous reports by Sathonsaowaphak et al(31), and Patankar et al(32). Moreover, the loss of compressive strength with increasing alkaline solution content implied the quantity of water present in the mix was much higher than the required as also confirmed by Chi(33).…”

supporting

confidence: 93%

“…On other hand, several researcher reported that the flow diameter increases almost linearly with the increase in percentage of H2O to CaO, H2O to SiO2 and H2O to Al2O3 (28-30). (32). Moreover, the loss of compressive strength with increasing alkaline solution content implied the quantity of water present in the mix was much higher than the required as also confirmed by Chi (33).…”

Section: Resultsmentioning

confidence: 65%

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Strength Performance of Free Cement Mortars Incorporating Fly ASH and Slag: Effects of Alkaline Activator Solution Dosage

et al. 2020

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In recent days, the reduce of carbon dioxide emission, cost and energy consumption are the main concern in urban countries worldwide. Concrete is the main construction materials and the Ordinary Portland Cement (OPC)is primary binder in concrete industry. OPC industry cases many environmental problems such as carbon dioxide emission and high energy consumption. Alkali-activated paste, mortars and concrete are introduced as alternative materials to OPC in concrete production with lower energy consumption and carbon dioxide emission. In the experimental, the alkaline activator solution effects on fresh and hardened properties of binary blended alkali-activated mortars were evaluated. The wastes materials such as fly ash (FA) and ground blast furnace slag (GBFS) were incorporating with river sand to prepare the mortar specimens. To activate the blend, six dosage of alkaline activator solution were used for this purpose. The results of tested specimens shown the enhancement in flowabiliry of mortar with increasing content of alkaline solution. The highest strength was achieved with specimens’ mortar prepared with ratio 0.40 of alkaline solution to binder content at 28 days of age. For all prepared alkali-activated mortar’ specimens, a good direct relationship was found between the flexural, splitting tensile and compressive strength.

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supporting

confidence: 93%

Section: Resultsmentioning

confidence: 65%

Strength Performance of Free Cement Mortars Incorporating Fly ASH and Slag: Effects of Alkaline Activator Solution Dosage

et al. 2020

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“…Additionally, the CS of GPC decreases as the percentage of water increases [6]. The performance of FA based GPC has been studied by Patankar et al [15] in relation to the impact of the liquid to binder (l/b) ratio. They found that as the ratio of l/b was raised, the compressive strength of GPC decreased.…”

Section: Introductionmentioning

confidence: 99%

Optimization and utilization of waste fly ash and silica fume based eco-friendly geopolymer mortar using response surface methodology

Sadiq

Ariffin

Anwar³

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Cement is the primary ingredient in concrete, which is one of the crucial building materials. The evolution of greenhouse gases, particularly carbon dioxide, which is produced during the hydration stage, has increased because of excessive use of concrete. Geopolymer, an alumina-silicate based bonding substance is made up of waste materials such as Fly ash (FA) or Silica Fume (SF) in the presence of alkaline solutions has been developed to reduce the effect of carbon emissions on the environment. This paper studied the optimization and utilization of FA and SF replacement as pozzolanic materials for the development of sustainable geopolymer mortar and to achieve optimal mechanical strength using response surface methodology (RSM). According to the study, with the addition of 90% FA and 10% SF content to the geopolymer design mix significantly improves their mechanical properties. When SF and sodium hydroxide are combined to create geopolymer mortar, they work as an alkaline catalyst, dramatically reducing carbon emission of the waste materials and providing it an edge over cement-based mortar. The construction of self-sustaining infrastructures ensuring human safety and eco-friendly practices will be encouraged by the multi-objective approach of RSM.

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“…The conventional Portland cement is completely replaced with an aluminosilicate material activated by a strongly alkaline solution as a binder. (Patankar et al, 2013). Metakaolin, fly ash, red mud, agricultural waste, and mine waste are natural and industrial products used to make geopolymer binders (Slaty et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

The Effect of Bentonite and Palm Shell Ash on The Mechanical and Physical Properties of Geopolymer Concrete

Hendronursito

Amin²,

Chambioso

et al. 2022

j.ris.technol.pencegah.

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Geopolymer concrete is an alternative to obtaining environmentally friendly mortar by synthesizing materials that contain a lot of aluminum silicate. This study aims to determine the effect of bentonite and palm shell ash composition on geopolymers' physical and mechanical characteristics. All materials are mashed, mixed, and molded with a 5x5x5 cm3 cube. Ten specimens were prepared with bentonite - palm shell ash compositions are 40/45, 45/40, 50/35, 55/30, and 60/25 wt%. Meanwhile, the composition of NaOH, Na2SiO3, superplasticizer and water remained at 1.3, 7.7, 2, and 5 wt%, respectively. Then the samples were dried at room temperature for 24 hrs and heated at 60 °C or 80 °C for 12 hrs. The geopolymer concrete with the best characteristics was obtained with a composition of 40 wt% bentonites and 45 wt% palm shell ash by heating at 80 °C. This specimen has a compressive strength of 11.94 MPa with a density of 2.42 g/cm3, porosity of 8.43%, and absorption of 3.48%. The results have a chemical composition of 55.59% SiO₂, 9.45% Al2O3, and 8.22 Fe2O3 with a dominant quartz phase. Scanning electron microscope photo shows good bonding between particles, and there are no pores formed.

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Effect of Water-to-Geopolymer Binder Ratio on the Production of Fly Ash Based Geopolymer Concrete

Cited by 12 publications

References 5 publications

Strength Performance of Free Cement Mortars Incorporating Fly ASH and Slag: Effects of Alkaline Activator Solution Dosage

Strength Performance of Free Cement Mortars Incorporating Fly ASH and Slag: Effects of Alkaline Activator Solution Dosage

Optimization and utilization of waste fly ash and silica fume based eco-friendly geopolymer mortar using response surface methodology

The Effect of Bentonite and Palm Shell Ash on The Mechanical and Physical Properties of Geopolymer Concrete

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