Ceramics-Silikáty 69, (1) 121 - 131 (2024) |
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THE INFLUENCE OF 517-TYPE BASIC MAGNESIUM SULFATE WHISKERS ON THE PROPERTIES OF MAGNESIUM OXIDE MODIFIED SODIUM SULFATE ACTIVATED SLAG
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Zhonglei Zhang 1, Xinkaung Ning 1, Chengyou Wu 1,2
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1 School of Civil Engineering, Qinghai University, Xining 810016, PR China
2 Key Laboratory of Energy-saving Building Materials and Engineering Safety of Qinghai Province, Xining 810016, PR China
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Keywords: Basic Magnesium Sulfate Whisker, Sodium Sulfate Activated Slag, Compressive Strength, Mineral Admixtures
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This study examines the impact of 5Mg(OH)₂·MgSO₄·7H₂O basic magnesium sulfate whiskers (abbreviated 517-type BMSWs) on the properties of Na₂SO₄ activated slag (SSAS) with varying activities of MgO modification by incorporating them into MgO-modified SSAS prepared by calcining at 500 °C and 700 °C, respectively. The investigation is based on the strength effect of magnesium whiskers on cementitious materials. In order to provide theoretical underpinnings and technological support, the effect of 517-type BMSWs on the properties of Na₂SO₄ activated slag (SSAS) modified with different activated MgO was investigated through the use of physical phase analysis, pore structure, compressive and flexural strength tests, and so on. These methods were employed by doping 0 wt%, 0.5 wt%, 1%, 2 wt%, 3 wt%, 4 wt%, and 5 wt% of 517-type BMSWs. |
 PDF (2.6 MB) |
doi: 10.13168/cs.2024.0071
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