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Properties of Rice Husk Ash and Aluminium Slag-Based Sustainable Geopolymer Bricks
The manufacture of insulating geopolymer bricks (GPBs) utilizing rice husk ash and waste aluminium slag (ALW) has been described in this work. The GPBs were described using compressive strength, bulk density, normal and hot absorption of water, acid attack, and porosity. RHA has poor alumina content. ALW is, therefore, added to make up for this lack. The RHA sample was made with varying NaOH levels (e.g. 8, 10, and 12 M; sodium silicate to sodium hydroxide ratio = 2) and curing durations (e.g. 7, 14, and 28 days). The maximum compressive strength was obtained at a concentration of 12 M NaOH. Various Si/Al ratios were subsequently made and tested at 12 M sodium hydroxide. According to the results, adding more alumina improves the characteristics of the GPB but decreases its compressive strength. Following a 28-day curing period, the sample with a Si/Al ratio of 2 had a higher compressive strength (11.2 MPa) than the specimens with Si/Al ratios of 3 and 1. The results are following Egyptian and ASTM C62 standards.
Properties of Rice Husk Ash and Aluminium Slag-Based Sustainable Geopolymer Bricks
The manufacture of insulating geopolymer bricks (GPBs) utilizing rice husk ash and waste aluminium slag (ALW) has been described in this work. The GPBs were described using compressive strength, bulk density, normal and hot absorption of water, acid attack, and porosity. RHA has poor alumina content. ALW is, therefore, added to make up for this lack. The RHA sample was made with varying NaOH levels (e.g. 8, 10, and 12 M; sodium silicate to sodium hydroxide ratio = 2) and curing durations (e.g. 7, 14, and 28 days). The maximum compressive strength was obtained at a concentration of 12 M NaOH. Various Si/Al ratios were subsequently made and tested at 12 M sodium hydroxide. According to the results, adding more alumina improves the characteristics of the GPB but decreases its compressive strength. Following a 28-day curing period, the sample with a Si/Al ratio of 2 had a higher compressive strength (11.2 MPa) than the specimens with Si/Al ratios of 3 and 1. The results are following Egyptian and ASTM C62 standards.
Properties of Rice Husk Ash and Aluminium Slag-Based Sustainable Geopolymer Bricks
Lecture Notes in Civil Engineering
Shukla, Sanjay Kumar (editor) / Raman, Sudharshan N. (editor) / Bhattacharjee, B. (editor) / Singh, Priyanka (editor) / Abbass, Mahapara (author) / Singh, Gyanendra (author) / Aggarwal, Vanita (author)
International Conference on Trends and Recent Advances in Civil Engineering ; 2022 ; Noida, India
2023-06-22
13 pages
Article/Chapter (Book)
Electronic Resource
English
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