Technological Properties of Non-Autoclave Slag-Alkali Foam Concrete using TPP Ash
A. N. Yefremov, D. G. Malinin
Donbas National Academy of Civil Engineering and Architecture
Abstract: The article presents the results of theoretical and experimental research in the field of technology for the production of non-autoclave foam concrete. It has been established that the use of a slag-alkaline binder instead of Portland cement in the composition of foam concrete mixtures makes it possible to accelerate the plastic strength of the raw material by 2.5 times. Increasing the percentage of ash from hydro removal from 0 to 30 % by weight of dry components increases the fluidity of the non-porous mixture and allows reaching standard values (22…26 cm) for the production of non-autoclaved aerated concrete of D600 and D700 grades. With an increase in the consumption of ash from hydro removal to 40 %, the setting time of the slag-alkaline binder is significantly slowed down. The beginning of setting increases 2.5 times, and the end – 1.5 times compared to the composition with 100 % content of ground granulated blast furnace slag.
Keywords: on-autoclave foam concrete, slag-alkaline binder, hydraulic ash removal, plastic strength.
Pages: 98-102.
Link for citation: Yefremov, A. N.; Malinin, D. G. Technological Properties of Non-Autoclave Slag-Alkali Foam Concrete using TPP Ash. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2021. – Issue 2021-4(150) Scientific and technical achievements of students of the construction and architectural industry. – Р. 98-102. – URL: https://donnasa.ru/publish_house/journals/vestnik/2021/2021-4(150)/st_18_efremov_malinin.pdf (date of access: 15.10.2024). (in Russian)
Issue 2021-4 (150)Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture