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Carbonate Steelmaking Slag to Manufacture Building Materials

机译：碳酸盐炼钢制造建筑材料

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Accelerated carbonation is a new technology of materials preparation, which may have potential for the treatment of industrial solid residues and the sequestration of CO_2, an important greenhouse gas. In this study, accelerated carbonation was used to recycle steelmaking slag and sequestrate CO_2 to manufacture building materials. The experimental results show that the strength of specimens increases along with the increase of carbonation degree. Moisture content, carbonation temperature and curing time have significant effects on the degree of carbonation, and carbonated specimens have larger weight increase and compressive strength increases under the condition of moisture content 12.6%，reaction time 117 min and reaction temperature 361 K. The SEM and XRD analyses indicate that dogtooth like CaCO_3 crystals appear on the surface of carbonated aggregate specimens. Strength and soundness test shows that steelmaking slag building materials have higher strength and eligible soundness after accelerated carbonation.
机译：加速碳酸化是一种新的材料制剂技术，可能具有治疗工业固体残留物和CO_2的封存，这是一种重要的温室气体。在本研究中，使用加速碳酸化来回收炼钢渣和螯合CO_2以制造建筑材料。实验结果表明，标本的强度随着碳化度的增加而增加。水分含量，碳化温度和固化时间对碳化程度具有显着影响，并且在水分含量12.6％的条件下，碳酸试样的重量增加和抗压强度增加，反应时间117分钟和反应温度361k。SEM和XRD分析表明，像Caco_3晶体这样的狗周表出现在碳酸纤维化物质的表面上。强度和合理测试表明，在加速碳酸化后，炼钢矿渣建筑材料具有更高的强度和合格的声音。

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