Creep and Long-Term Properties of Alkali-Activated Swedish-Slag Concrete

نویسندگان

چکیده

The construction of the future is moving in direction environmentally friendly materials and use various types industrial byproducts wastes. blast furnace slag (BFS) for production concrete one those alternatives. In this study, pastes concretes based on high-MgO BFS were alkali activated with 10% by weight sodium carbonate, silicate, a combination both. Heat treatment laboratory curing applied. results showed that heat was effective at reducing drying shrinkage alkali-activated promoting high early strength. However, carbonate–activated specimens reduction compressive strength later ages. All tested exhibited shrinkage; highest values silicate–activated lowest concretes. very large creep, which partly related to small maximum aggregate size (8 mm) effects carbonation. carbonation depth after 12–24 months significantly smaller heat-treated silicate. process resulted more porous binder matrix, leading long-term loss increased especially mixes.

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ژورنال

عنوان ژورنال: Journal of Materials in Civil Engineering

سال: 2021

ISSN: ['0899-1561', '1943-5533']

DOI: https://doi.org/10.1061/(asce)mt.1943-5533.0003381