Synthesis of heat and ambient cured one-part geopolymer mixes with different grades of sodium silicate

Nematollahi, Behzad; Sanjayan, Jay; Shaikh, Faiz Uddin Ahmed

doi:10.1016/j.ceramint.2014.12.154

Cited by 299 publications

(87 citation statements)

References 28 publications

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“…However, the effect of the increase in the curing time on the water absorption rates of the mixtures with 20% lime substitution is not clear. Furthermore, it is also reported that during the curing process, materials are prone to high water absorption as a result of water and alkali movement on the surface of the geopolymer material [47]. In general, bulk density is expected to increase with a decrease in the apparent porosity ratio.…”

Section: Mixturesmentioning

confidence: 98%

The evaluation with anova of the effect of lime admixture and thermal cure time on fly ash paste activated with sodium silicate solution

Görhan

2015

Construction and Building Materials

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Section: Mixturesmentioning

confidence: 98%

The evaluation with anova of the effect of lime admixture and thermal cure time on fly ash paste activated with sodium silicate solution

Görhan

2015

Construction and Building Materials

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“…Feng et al [20] prepared one-part geopolymer from thermal activation of albite. Nematollahi et al [21] developed one-part geopolymer mixtures by mixing fly ash (FA) with sodium silicate. In similar trend, Yang and Song [22] synthesized one-part geopolymer by mixing sodium silicate with BFS or FA or combination of them.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of one-part non-Portland cement

Abdel‐Gawwad

El-Aleem

Ouda

2016

Ceramics International

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“…The applications of many various sources of Al and Si for geopolymer preparation have been investigated -rice husk ash, demolition wastes, blast furnace slag, volcanic ash, etc. [13,14,[39][40][41]. Nevertheless, the most popular solid raw materials are fly ashes and metakaolin, because they can provide geopolymers with excellent properties and are available worldwide in sufficient quantities for industrial production.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Kaolin and Kaolinitic Claystones as Raw Materials for Preparing Meta-Kaolinite-Based Geopolymers

Koutník¹

2019

Ceramics - Silikaty

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Geopolymer binders were then prepared by water addition up to an invariable content of 34 wt. %. The binders were finally mixed with quartz sand in a weight ratio of 40:60. The differences in the properties between the two types of clay materials, the changes in these properties due to dehydration and milling, and the impact of the observed differences on the properties of the geopolymer binders (dynamic viscosity, pore size distribution, colour shade) and filled geopolymers (flexural strength, compressive strength, elastic modulus) were investigated. The kaolinitic claystones had a morphology different from the kaolin, characterised by smaller kaolinite plates, significantly lower pore volumes with average pore diameters and a higher impurities content that caused a more intense colour compared to the kaolin. The above-mentioned differences remained unchanged after thermal and mechanical treatment of the starting clay materials. The geopolymer binders prepared from the calcined and milled kaolinitic claystones were darker in colour and had a significantly lower dynamic viscosity (approximately three times) compared to the geopolymer binders prepared from the kaolin. The dynamic viscosity decreased with the decreasing activator content, while the volume and pore size increased. The mechanical properties of all the prepared geopolymers were excellent (compressive strength >50 MPa, bending strength > 7.9 MPa and elastic modulus >15 GPa) up to a ratio of metakaolinite component/alkali activator of 1:1. Comparison of kaolin and kaolinitic claystones as raw materials for preparing metakaolinite-based geopolymers Ceramics-Silikáty 63 (1) 110-123 (2019)

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Synthesis of heat and ambient cured one-part geopolymer mixes with different grades of sodium silicate

Cited by 299 publications

References 28 publications

The evaluation with anova of the effect of lime admixture and thermal cure time on fly ash paste activated with sodium silicate solution

The evaluation with anova of the effect of lime admixture and thermal cure time on fly ash paste activated with sodium silicate solution

Preparation and characterization of one-part non-Portland cement

Comparison of Kaolin and Kaolinitic Claystones as Raw Materials for Preparing Meta-Kaolinite-Based Geopolymers

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