HARDENINGKINETICS OF ALKALI ACTIVATED ASH AND SLAG BINDER
Article Sidebar
Main Article Content
Abstract
The article presents theresearch results of the hardeningkinetics of alkali activated ash and slag binder based on grinded ash and slag waste of the Belarusian State District Power Station.Mathematical dependences of the compressive strength of ash and slag stone have been established by variation in the composition of the binder flow of the ash and slag mixture, the flow and type of alkaline activator, and the water-ash ratio.The concentration values of alkaline activators Na2SiO3, KOH, NaOH and the intervals of the water-ash ratio, which deliver of the maximum values of the compressive strength after 24 hours of hardening in air-dry conditions, are determined. The compressive strength of ash and slag stone at 7, 14, 28, 56, 420 days was pronounced.It is shown that the type of alkaline activator has a significant effect on the kinetics of the curing of ash and slag stone. Alkali activated ash and slag binderwith Na2SiO3 and KOH are characterized by an intensive set of strength in the first 24 hours of hardening; when NaOH is used as a hardening activator, curing continues in the later hardening periods up to 420 days.
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
References
Ерошкина, Н.А. Использование золы ТЭС в технологии геополимерных строительных материалов [Электронный ресурс] / Н.А. Ерошкина, М.О. Коровкин, И.В. Коровченко // Молодой ученый. – 2015. – № 7. – С. 117–120. – Режим доступа: https://moluch.ru/archive/87/17049/. – Дата доступа: 08.09.2019.
Корнеев, В.И. Перспективы развития общестроительных вяжущих веществ. Геополимеры и их отличительные особенности / В.И. Корнеев, А.С. Брыков // Цемент и его применение. – 2010. – март-апрель. – С. 51–55.
Ерошкина, Н.А. Принципы выбора сырьевых компонентов в технологии получения геополимеров на основе золы-уноса / Н.А. Ерошкина, М.О. Коровкин, М.Ю. Чамурлиев // Теория. Практика. Инновации. – 2017. – № 5(17). – С. 7–16.
Davidovits J. Geopolymerchemistryandapplications [Электронный ресурс]/ J. Davidovits. – 3rd ed. – 2011. – Режим доступа: https://www.geopolymer.org/fichiers_pdf/geopolymer-book-chapter1.pdf. – Дата доступа: 05.09.2019.
Incorporation of cement bypassflue dust infly ash and blastfurnace slag-based geopolymer / E. Mohamed Sultana [et al.] // Case Studiesin Construction Materials. – 2018. – № 8. – Р. 315–322.
Ерошкина, Н.А. Геополимерные строительные материалы на основе промышленных отходов / Н.А. Ерошкина, М.О. Коровкин. – Пенза : ПГУАС, 2014. – 128 с.
Разуева, Е.А. Щелочная реакционная способность механоактивированной золошлаковой смеси Белорусской ГРЭС / Е.А. Разуева, Л.М. Парфенова // Перспективные направления инновационного развития строительства и подготовки инженерных кадров : сб. науч. ст. XXI Междунар. науч.-метод. семинара, Брест, 25–26 окт. 2018 г. / Брест. гос. техн. ун-т ; редкол.: Н.Н. Шалобыта [и др.]. – Брест : БрГТУ, 2018. – Ч. 2 – С. 80–83.
Most read articles by the same author(s)
- L. PARFENOVA, K. RAZUEVA, AREAS OF IMPROVEMENT OF PANELES MOLDED BY TYPE TECHNOLOGIES, Vestnik of Polotsk State University. Part F. Constructions. Applied Sciences: No. 16 (2016)
- А. KATULSKAYA, L. PARFENOVA, COMPARATIVE ANALYSIS OF APPLICATION OF INDUSTRIAL WASTE AS MODIFIERS OF GYPSUM BINDERS, Vestnik of Polotsk State University. Part F. Constructions. Applied Sciences: No. 8 (2019)
- A. LASTOUSKAYA, L. PARFENOVA, SATI RABIH, RESISTANCE OF CONSTRUCTION STRUCTURES BASED ON CONCRETE WITH POLYMERIC ADDITIVES TO SULFATE CORROSION, Vestnik of Polotsk State University. Part F. Constructions. Applied Sciences: No. 8 (2019)
- Y. MATSKEVICH, L. PARFENOVA, L. ZAKREVSKAYA, PHYSICAL AND MECHANICAL PROPERTIES OF GYPSUM CONCRETE BASED ON LOW-QUALITY GYPSUM BINDER WITH ORGANIC FILLER, Vestnik of Polotsk State University. Part F. Constructions. Applied Sciences: No. 3 (2023)
- А. KATULSKAYA, L. PARFENOVA, COMPLEX MINERAL ADDITIVE BASED ON INDUSTRIAL WASTE FOR GYPSUM BINDERS, Vestnik of Polotsk State University. Part F. Constructions. Applied Sciences: No. 16 (2019)
- L. PARFENOVA, V. BOZYLEV, A. SHVEDOV, M. VYSOTSKAYA, MODES AND METHODS FOR ACTIVATION ASH WASTE THERMAL POWER PLANTS, Vestnik of Polotsk State University. Part F. Constructions. Applied Sciences: No. 8 (2016)
- L. PARFENOVA, M. VYSOTSKAYA, PAULO A.L. FERNANDES, THE COMPLEX BINDER BASED ON PORTLANDCEMENT AND ASH AND SLAG WASTES OF THE THERMAL POWER PLANTS, Vestnik of Polotsk State University. Part F. Constructions. Applied Sciences: No. 8 (2018)
- L. PARFENOVA, V. KHVATYNEC, LIGHTWEIGHT CONCRETE DISPERSED-REINFORCED WASTE ALKALI-RESISTANT GLASS MESH, Vestnik of Polotsk State University. Part F. Constructions. Applied Sciences: No. 8 (2018)
- М. TOLMACH, N. RASCHINSKY, L. PARFENOVA, COMPOSITE GYPSUM BINDER USING DOLOMITE FLOUR AND ASH AND SLAG WASTE, Vestnik of Polotsk State University. Part F. Constructions. Applied Sciences: No. 1 (2024)
- V. MARKOVTSOVA, L. PARFENOVA, L. ZAKREVSKAYA, HEAVY-DUTY CONCRETE WITH FROST RESISTANCE F400 WITH COMPLEX CHEMICAL ADDITIVES, Vestnik of Polotsk State University. Part F. Constructions. Applied Sciences: No. 3 (2024)