Chloride binding and mobility in sodium carbonate-activated slag pastes and mortars

Ke Xinyuan; Bernal Susan A.; Hussein Oday H.; Provis John L.

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Chloride binding and mobility in sodium carbonate-activated slag pastes and mortars

机译：碳酸钠活化的矿渣糊和砂浆中氯离子的结合和迁移率

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This study evaluates the chloride binding capacity and the migration of chloride in sodium carbonate-activated slag cements and mortars. The effect on chloride mobility and binding of adding a calcined layered double hydroxide (CLDH) to the binder mix was also assessed. Significantly improved durability characteristics can be achieved for sodium carbonate-activated slag mortars by the addition of small fractions of CLDH, as a consequence of a higher degree of reaction, higher chloride binding capacity, and the refined pore structures present in these modified materials, in comparison with alkali-activated cements produced without CLDH. The addition of CLDH enables the production of sodium carbonate-activated slag cements with notably reduced chloride ingress compared to silicate activated slag cements.

机译：这项研究评估了碳酸钠活化矿渣水泥和砂浆中氯离子的结合能力和氯离子的迁移。还评估了对氯化物迁移率和将煅烧的层状双氢氧化物（CLDH）添加到粘合剂混合物中的结合的影响。对于碳酸钠活化的矿渣砂浆，通过添加少量的CLDH（由于更高的反应度，更高的氯离子结合能力以及这些改性材料中存在的细孔结构），可以显着提高耐久性。与不使用CLDH生产的碱活化水泥进行比较。与硅酸盐活化的矿渣水泥相比，CLDH的加入使得碳酸钠活化的矿渣水泥的生产具有显着降低的氯化物进入。

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来源
《Materials and structures》 |2017年第6期|252.1-252.13|共13页
作者
Ke Xinyuan; Bernal Susan A.; Hussein Oday H.; Provis John L.;
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作者单位

Univ Sheffield, Dept Mat Sci & Engn, Sir Robert Hadfield Bldg, Sheffield S1 3JD, S Yorkshire, England;

Univ Sheffield, Dept Mat Sci & Engn, Sir Robert Hadfield Bldg, Sheffield S1 3JD, S Yorkshire, England;

Univ Sheffield, Dept Mat Sci & Engn, Sir Robert Hadfield Bldg, Sheffield S1 3JD, S Yorkshire, England;

Univ Sheffield, Dept Mat Sci & Engn, Sir Robert Hadfield Bldg, Sheffield S1 3JD, S Yorkshire, England;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Sodium carbonate-activated slag; Layered double hydroxide; Chloride; Durability; Microstructure;

机译：碳酸钠活化渣;层状双氢氧化物;氯化物;耐久性;显微组织;

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1. Chloride and heavy metal binding capacities of hydrotalcite-like phases formed in greener one-part sodium carbonate-activated slag cements [J] . Yang Tao, Zhang Zuhua, Zhang Feng, Journal of Cleaner Production . 2020,第Apra20期

机译：在更绿色的单级碳酸钠 - 活化炉渣水泥中形成的氯化物状相的氯化物和重金属结合能力
2. Characterisation of reactive magnesia and sodium carbonate-activated fly ash/slag paste blends [J] . Abdalqader Ahmed F., Jin Fei, Al-Tabbaa Abir Construction and Building Materials . 2015,第sepa15期

机译：活性氧化镁和碳酸钠活化的粉煤灰/矿渣糊混合物的表征
3. Sodium silicate-based alkali-activated slag mortars Part II. The retarding effect of additions of sodium chloride or malic acid [J] . A.R. Brough, M. Holloway Cement and Concrete Research . 2000,第9期

机译：硅酸钠基碱活化矿渣砂浆第二部分。添加氯化钠或苹果酸的阻滞作用
4. HYDRATION AND MECHANICAL PROPERTIES OF REACTIVE MAGNESIA AND SODIUM CARBONATE-ACTIVATED FLY ASH/SLAG PASTE BLENDS [C] . Ahmed F. Abdalqader, Abir Al-Tabbaa Second international conference on advances in chemically-activated materials . 2014

机译：活性氧化镁和碳酸钠活化的粉煤灰/矿渣浆糊的水化和力学性能
5. Binding of external chlorides by cement pastes. [D] . Zibara, Hassan. 2001

机译：水泥浆与外部氯化物的结合。
6. The Effects of Aluminium Sulphate on Slag Paste Activated with Sodium Hydroxide and Sodium Silicate [O] . Taewan Kim, Sungnam Hong, Choonghyun Kang 2020

机译：硫酸铝对氢氧化钠和硅酸钠活化的矿渣浆的影响
7. Chloride binding and mobility in sodium carbonate-activated slag pastes and mortars [O] . Ke X., Bernal S.A., Hussein O.H., 100

机译：氯化钠结合和在碳酸钠活化的渣渣和砂浆中的流动性

Chloride binding and mobility in sodium carbonate-activated slag pastes and mortars

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