Results 21 to 30 of about 3,059 (181)
Buildings, 2022 Alkali-activated materials are produced by chemically polymerizing the aluminosilicate materials using alkaline activators, which can effectively lower the greenhouse-gas emissions (approximately 73%) released by ordinary Portland cement (OPC ...
Baifu Luo +2 more
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External Sulphate Attack on Alkali-Activated Slag and Slag/Fly Ash Concrete [PDF]
Buildings, 2022 Two types of alkali-activated material (AAM) concretes were exposed to various sulphate bearing-solutions for over two years. Physical changes to the concrete specimen and chemical changes in the exposure liquid were studied in an attempt to understand how sulphate attack occurs in such binders and the role the mix variables play in offering resistance
Dali Bondar, Sreejith Nanukuttan
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Shrinkage mechanisms of alkali-activated slag [PDF]
Cement and Concrete Research, 2016 Abstract In this work, the physical and chemical changes of alkali-activated slag (AAS) after a prolonged drying treatment under various relative humidity (RH) conditions were studied. The results show that the shrinkage kinetics of AAS is strongly dependent on the RH, but irrespective of the moisture loss.
Radlińska, Aleksandra, Ye, Hailong
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Experimental Study on the Durability of Alkali-Activated Slag Concrete after Freeze-Thaw Cycle
Advances in Materials Science and Engineering, 2021 A freeze-thaw resistance is an important indicator of the durability of alkali-activated slag concrete, which causes structural failure when the performance is low, especially in severely cold areas.
Bin Chen, Jun Wang
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CO2 treatment of ground granulated blast furnace slag for enhancing geopolymer properties
Journal of Materials Research and Technology, 2022 A novel and cost-effective method was developed for CO2 incorporation into ground granulated blast furnace slag as distorted carbonates, and subsequent value-added use of the captured carbon dioxide towards enhancement of the alkali-activated slag ...
Faris Matalkah, Parviz Soroushian
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Mechanism of Alkali‐Activated Copper‐Nickel Slag Material [PDF]
Advances in Civil Engineering, 2020 A copper‐nickel slag‐based alkali‐activated cementing material (CNSCM) for backfilling was prepared using copper‐nickel slag as a raw material and sodium silicate (SS) as an activating agent. The effects of SS content (6%, 8%, and 10%) and curing humidity on the compressive strength of CNSCM were investigated using an electronic universal testing ...
Tingting Zhang +6 more
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Alkali-activated slag mortars reinforced with ar glassfibre. Performance and properties
Materiales de Construccion, 2006 In light of the practical problem posed by the high drying shrinkage rate exhibited by alkali-activated slag (AAS),due to these materials exhibited a high drying shrinkage the present study analyzes the behaviour of alkali-activated slag mortars ...
F. Puertas +3 more
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Autogenous shrinkage of alkali-activated slag: A critical review
Cement and Concrete Research, 2023 sponsorship: This work was partially supported by Horizon Europe guarantee funding (grant number EP/X022587/1) . The first author (ZL) would like to thank Prof. Klaas van Breugel for the insightful discussions with him. The second author (YC) would like to acknowledge the financial support from China Scholarship Council (Grant No. 201906150022) .
Li, Zhenming +4 more
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Developments in the Built Environment, 2023 In order to explore the effect and mechanism of marble waste powder on the properties of alkali-activated slag composite cementitious materials. The effects of different parameters on the properties of alkali-activated slag composite cementitious ...
Tongkuai Wang +3 more
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Immobilization of cesium with alkali-activated blast furnace slag [PDF]
Journal of Hazardous Materials, 2020 Alkali-activated binders (AABs), as a promising alternative to Portland cement, are now being used on a commercial scale in various applications around the world, including hazardous and radioactive waste immobilization. In this paper, the leaching resistance, strength, and nanostructural alteration of alkali-activated blast furnace slag (AABFS) doped ...
M. Komljenović +3 more
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