scholarly journals Influence of Amorphous Raw Rice Husk Ash as Precursor and Curing Condition on the Performance of Alkali Activated Concrete

2021 ◽  
pp. e00777
Author(s):  
Thamer Alomayri ◽  
Adeyemi Adesina ◽  
Shaswat Das
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Curing Condition ◽  
Alkali Activated Concrete ◽  
Alkali Activated

Life cycle assessment and cost analysis of fly ash–rice husk ash blended alkali-activated concrete

2021 ◽  
Vol 295 ◽  
pp. 113140
Author(s):  
Sarah Fernando ◽  
Chamila Gunasekara ◽  
David W. Law ◽  
M.C.M. Nasvi ◽  
Sujeeva Setunge ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Fly Ash ◽  
Cost Analysis ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Alkali Activated Concrete ◽  
Alkali Activated

Effect of rice husk ash-derived activator on the structural build-up of alkali activated materials

2021 ◽  
Vol 150 ◽  
pp. 106590
Author(s):  
Mohammed Fouad Alnahhal ◽  
Abdelrahman Hamdan ◽  
Ailar Hajimohammadi ◽  
Taehwan Kim
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Alkali Activated

Investigation of the waterproof property of alkali-activated metakaolin geopolymer added with rice husk ash

2019 ◽  
Vol 230 ◽  
pp. 603-612 ◽  
Author(s):  
Guangwei Liang ◽  
Huajun Zhu ◽  
Zuhua Zhang ◽  
Qisheng Wu ◽  
Jianzhou Du
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Metakaolin Geopolymer ◽  
Alkali Activated

scholarly journals Strength and Durability Performance of Alkali-Activated Rice Husk Ash Geopolymer Mortar

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Yun Yong Kim ◽  
Byung-Jae Lee ◽  
Velu Saraswathy ◽  
Seung-Jun Kwon
Keyword(s):  
Compressive Strength ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Polymerization Reaction ◽  
Strength Development ◽  
Geopolymer Concrete ◽  
Portland Cement Concrete ◽  
Mix Proportion ◽  
Strength And Durability ◽  
Alkali Activated

This paper describes the experimental investigation carried out to develop the geopolymer concrete based on alkali-activated rice husk ash (RHA) by sodium hydroxide with sodium silicate. Effect on method of curing and concentration of NaOH on compressive strength as well as the optimum mix proportion of geopolymer mortar was investigated. It is possible to achieve compressive strengths of 31 N/mm2and 45 N/mm2, respectively for the 10 M alkali-activated geopolymer mortar after 7 and 28 days of casting when cured for 24 hours at 60°C. Results indicated that the increase in curing period and concentration of alkali activator increased the compressive strength. Durability studies were carried out in acid and sulfate media such as H2SO4, HCl, Na2SO4, and MgSO4environments and found that geopolymer concrete showed very less weight loss when compared to steam-cured mortar specimens. In addition, fluorescent optical microscopy and X-ray diffraction (XRD) studies have shown the formation of new peaks and enhanced the polymerization reaction which is responsible for strength development and hence RHA has great potential as a substitute for ordinary Portland cement concrete.

Systematic Review on Alkali-Activated Binders Blended with Rice Husk Ash

2021 ◽  
Vol 33 (9) ◽  
pp. 04021229
Author(s):  
Sarah Fernando ◽  
M. C. M. Nasvi ◽  
Chamila Gunasekara ◽  
David W. Law ◽  
Sujeeva Setunge ◽  
...  
Keyword(s):  
Systematic Review ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Alkali Activated Binders ◽  
Alkali Activated

Thermal Performance of the Alkali Activated Binder Developed from Rice Husk Ash and Bottom Ash

2021 ◽  
Vol 873 ◽  
pp. 13-17
Author(s):  
Khan Asudullah Khan ◽  
Ashwin Raut ◽  
C. Rama Chandrudu ◽  
C. Sashidhara
Keyword(s):  
Construction Industry ◽  
Rice Husk ◽  
Thermal Performance ◽  
Rice Husk Ash ◽  
Bottom Ash ◽  
Thermal Characteristics ◽  
Source Material ◽  
Research Focus ◽  
Innovative Materials ◽  
Alkali Activated

Currently, construction industry is unsustainable in nature due to the over dependency on the energy consumptive materials. Thus, to transform the industry from unsustainable to sustainable focus is on innovative materials developed from locally available waste. In this research, focus is on development of alkali activated binder using combination of fly ash (FA), rice husk ash (RHA) and bottom ash (BA) as an alumina silicate source material. Further, thermal performance of the developed material has been studied to understand its impact on the heat transfer and insulation characteristic s of the material. The alkali activated binder developed from bottom ash shows better performance than rice husk ash (RHA) based binder. However, the thermal performance of the rice husk ash binder is more suited for the insulation due to its low thermal characteristics. The lowest thermal conductivity for the developed binder was having value of 0.31 W/m2K for rice husk ash (RHA) based binder.

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