Influence of Recycled Glass on Strength Development of Alkali-Activated High-Calcium Fly Ash Mortar
نویسندگان
چکیده
This article presents the development of green and sustainable mortars using alkali-activated high-calcium fly ash (AAFA) recycled glass (RG) as part fine aggregate. RG was used to replace river sand at dosages 0%, 25%, 50%, 75%, 100% by weight. Sodium hydroxide (SH) sodium silicate (SS) solutions were liquid alkaline activators in all mixtures. The AAFA samples prepared with different liquid-to-binder ratios 0.6 0.7, ratio SS-to-SH fixed 2.0. Compressive flexural strengths determined ages 7, 28, 60 days. Test results showed that compressive declined replacement increased; nevertheless, they increased curing time. high Na2O concentration derived from weak interfacial transition zone are reasons for decrease strength development. optimum percentage aggregates found 25%. 28-day 25% 32.5 MPa L/B 29.5 which resulted a index higher than 75% while releasing low CO2.
منابع مشابه
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ژورنال
عنوان ژورنال: Advances in Materials Science and Engineering
سال: 2023
ISSN: ['1687-8434', '1687-8442']
DOI: https://doi.org/10.1155/2023/9418619