The Leachability of a PCP-Based Superplasticizer from Hardened Cement-Based Materials

机译：硬化水泥基材料对PCP基高效减水剂的浸出性

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Evidence that materials used by the building industry are not damageable for their environment has become a major issue. In particular, the question of organic admixtures released from cement based materials by leaching has to be addressed. This paper presents the results of the work carried out with a leaching test derived from the Soxhlet extractor allowing to accelerate the leaching process of organic admixtures. Studied compound is a Polycarboxylate-co-polyethylene glycol based superplasticizer. Numerous analytical methods have been used in the past to detect traces of this chemical. However, mass spectrometry has not yet been applied for this purpose. The last method has enabled us to demonstrate that during the leaching of concrete samples admixed with usual dosages; organic compounds are not released in the leachates. Additionally, in case of cement pastes with high admixtures dosages, we have shown that the leaching process can be assimilated to surface washing.

机译：建筑业使用的材料不会对其环境造成损害的证据已成为一个主要问题。特别地，必须解决通过沥滤从水泥基材料中释放出有机掺合料的问题。本文介绍了用索氏提取器进行的浸出试验进行的工作结果，该浸出试验可加速有机混合物的浸出过程。研究的化合物是基于聚羧酸盐-聚乙二醇的高效减水剂。过去已使用多种分析方法来检测该化学物质的痕迹。但是，质谱尚未用于此目的。最后一种方法使我们能够证明在沥滤与常规剂量混合的混凝土样品过程中；渗滤液中不会释放有机化合物。此外，对于高掺量水泥浆，我们已经表明浸出过程可以与表面清洗同化。

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来源
《Tenth international conference on superplasticizers and other chemical admixtures 2012》|2012年|251-264|共14页
会议地点 Prague(CZ)
作者
Cyril Guerandel; Lionel Vernex-Loset; Gabriel Krier; Michel De Laneve; Laurent Izoret; Christian Pierre; Jean-Francois Muller;
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作者单位

Saint-Gobain Recherche (Aubervilliers, France);

Laboratory of Mass Spectrometry and Laser chemistry of University Paul Verlaine Metz, France;

Laboratory of Mass Spectrometry and Laser Chemistry of University Paul Verlaine Metz, France;

Department of the Belgian Research Centre for the Cement Industry (CRIC-OCCN) based in Brussels;

French Association for Hydraulic Binder Industry (ATILH) based in Paris;

Research Department of the Belgian Research Centre for the Cement Industry (CRIC-OCCN) based in Brussels;

University Paul Verlaine - Metz France;

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原文格式 PDF
正文语种 eng
中图分类
关键词
superplasticizer; cement; leaching; mass spectrometry; durability;

机译：高效减水剂水泥;浸出质谱;耐用性;

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专利

1. In situ Ca(OH)(2) consumption of TEOS on the surface of hardened cement-based materials and its improving effects on the Ca-leaching and sulfate-attack resistivity [J] . Hou Pengkun, Zhang Rui, Cai Yamei, Construction and Building Materials . 2016,第juna15期

机译：硬化水泥基材料表面原位Ca（OH）（2）的消耗及其对Ca浸出和硫酸盐侵蚀电阻率的改善作用
2. Modelling and simulations of the chemo-mechanical behaviour of leached cement-based materials: Interactions between damage and leaching [J] . E. Stora, B. Bary, Q-C. He, Cement and Concrete Research . 2010,第8期

机译：沥滤水泥基材料化学力学行为的建模和模拟：破坏与沥滤之间的相互作用
3. Modelling and simulations of the chemo-mechanical behaviour of leached cement-based materials Leaching process and induced loss of stiffness [J] . E. Stora, B. Bary, Q.-C. He Cement and Concrete Research . 2009,第9期

机译：沥滤水泥基材料化学力学行为的建模与模拟
4. The Leachability of a PCP-Based Superplasticizer from Hardened Cement-Based Materials [C] . Cyril Guerandel, Lionel Vernex-Loset, Gabriel Krier International Conference on Superplasticizers and Other Chemical Admixtures in Concrete . 2013

机译：基于硬化水泥基材料的PCP基础高效化器的可渗透
5. Modification and validation of piezoelectric ring actuator technique to monitor setting and hardening of cement-based materials. [D] . Soliman, Nancy Ahmed. 2010

机译：压电环致动器技术的修改和验证，以监测水泥基材料的凝固和硬化。
6. Effects of Leaching Behavior of Calcium Ions on Compression and Durability of Cement-Based Materials with Mineral Admixtures [O] . An Cheng, Sao-Jeng Chao, Wei-Ting Lin 2013

机译：钙离子的浸出行为对含矿物掺合料的水泥基材料压缩和耐久性的影响
7. 3D simulation of the leaching of cement-based materials in order to compare different leaching tests [O] . Aouad G., De Windt Laurent, Damidot Denis 2010

机译：水泥基材料浸出的3D模拟，以便比较不同的浸出试验

The Leachability of a PCP-Based Superplasticizer from Hardened Cement-Based Materials

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