Influence of different additives on the properties of sodium sulfate activated slag
作者： Alaa M. Rashad
DOI: 10.1016/J.CONBUILDMAT.2015.01.022
关键词:
摘要: In this work, the effect of some additives namely condensed silica fume (SF), fly ash (FA), limestone (LS), hydrated lime (HL) and Portland cement (PC) on workability, compressive strength drying shrinkage 1% Na2O equivalent Na2SO4 activated granulated ground blast-furnace slag (hereafter referred to as slag) has been investigated compared with other common activators. These were used a partial replacement at level 5%, by weight. Traditional neat PC (AS0) pastes references. The various decomposition phases formed identified using X-ray diffraction (XRD), thermogravimetric analysis (TGA) scanning electron microscopy (SEM). Compared AS0, results indicated that inclusion LS increased whilst HL, FA, SF reduced it. enhanced strength, HL decreased shrinkage, greatly
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