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Optimum Calcination Condition of Waste Stabilized Adobe for Alkali Activated High Volume Adobe-Slag Binder Cured at Room Temperature

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Journal of Renewable Materials 2022年第5期10卷 1269-1285页

作者： Brya Aldawoodi salaheddin sabri Abdulmounem Alchekh Wis Department of Civil Engineering Cyprus International UniversityHaspolatNorth Cyprusvia Mersin 10Turkey Kocaeli University Kocaeli41380Turkey

This study aims to determine the most convenient calcination temperature and calcination duration of wastestabilized Adobe(AB)to produce a new alkali-activated ***-stabilized Adobe mainly consists of soil,CaCO3 as a stabilizer,and straw(for strengthening).The availability of raw materials for making Adobe presents the waste-stabilized Adobe as a potential product for a new alkali-activated ***-stabilized Adobe collected from an abandoned damaged building in the village of Inonu in Northern Cyprus,ground and calcined at the following temperatures:450,550,650,750,850,and 950℃.The calcination at each temperature was held for different durations 1,3,5,and 7 *** and calcined waste stabilized Adobe structures were investigated using XRF,TGA-DTA,XRD,FTIR,and *** technical and environmental views related to energy consumption,waste stabilized Adobe calcined at 750℃ for 1 h presented the most promising results regarding the production of a new precursor for alkali-activated *** study also presents the effect of ground granulated blast furnace slag(GGBFS)usage on the fresh and hardened properties of optimum calcined AB-based alkali-activated pastes cured at room *** was used to partially replace AB to form a binary composite raw material system and seven experimental groups were designed according to replacement levels of 0%,5%,10%,15%,20%,25%and 30%(by mass).Alkali-activated high volume waste-stabilized Adobe-slag pastes prepared using Na2SiO3-to-NaOH ratio of 2 and 12 M concentration of Sodium *** fresh property as flowability and the hardened property as the compressive strength of the alkali-activated pastes with different GGBFS contents were *** results indicated that the incorporation of GGBFS increased the flowability of fresh alkali-activated pastes.A 28-day compressive strength of 43.75 MPa can be obtained by a 30%replacement level of GGBFS.

关键词： Waste stabilized adobe calcination alkali activation compressive strength room temperature curing

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