Preparation of Geo-polymer Bricks from Alum Waste

Amin, Sh.K.; Salam, Noura Fathy Abdel; Ghaly, Sarah Tarek; Abadir, M. F.

doi:10.21608/ejchem.2021.80201.3974

Cited by 1 publication

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“…Besides their excellent refractory properties, these forsterite-type refractories were recommended to be used in the clinkering zone of cement rotary kilns and regenerators of the steel furnaces owing to their basic character. During their recent research, Salam et al (Salam, Ghaly, Abadir, & Amin, 2022) produced geopolymer bricks using DK activated by sodium hydroxide solution (with concentrations ranging from 2 to 14 M). The effect of curing time and molarity of the alkaline activator solution on the degree of geopolymerization, bulk density, water absorption and 28 days compressive strength were evaluated.…”

Section: Introductionmentioning

confidence: 99%

Feasibility study of dealuminated kaolin utilization in marine constructions

I. Bendary,

Heikal,

A. Ali

et al. 2023

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In the marine environment, the resistance of cement structures to salts is the most critical factor affecting their life span. We investigated the sulfate attack of ordinary Portland cement (OPC) and dealuminated kaolin (DK) blended cement in the marine environment. The performance of this cement was assessed by immersing the mortar specimens in fresh seawater for one year and measuring the strength development, reduction in compressive strength, expansion due to (SO42-) penetration, and weight change of the mortar specimens using the standard test methods. The results proved clearly that 7.5% (DK) blended cement mortar specimen is the best achieved the lowest reduction in compressive strength (10%), a relatively small weight gain (0.62%), and expanded to less than 0.10% at 1-year exposure so it is considered sulfate resistant.

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Section: Introductionmentioning

confidence: 99%