Structural

Alkali Activated Materials: State-of-the-Art Report, RILEM by John L. Provis, Jannie S. J. van Deventer

By John L. Provis, Jannie S. J. van Deventer

This is a cutting-edge file due to the paintings of RILEM Technical Committee 224-AAM within the interval 2007-2013. The record summarises learn so far within the sector of alkali-activated binders and concretes, with a selected concentrate on the next parts: binder layout and characterisation, sturdiness trying out, commercialisation, standardisation, and delivering a old context for this rapidly-growing learn field.

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Additional resources for Alkali Activated Materials: State-of-the-Art Report, RILEM TC 224-AAM

Example text

Issues with rapid setting of alkali-activated BFS concretes were identified, and admixture development was highlighted as a key area requiring attention. A review published in 1995 [114] compared developments up to that time in China, the former USSR and in the USA, and showed that comparable performance results were being obtained in all three regions. More recent developments have been outlined in some detail by Pan and Yang [155], and the discussion here follows from that presentation. Two major non-technical factors have also influenced the development of alkaliactivated binders in China.

One is related to the historical development of the science and technology globally, and the other, more recent driver is related to the protection of the environment and the sustainable development of industrial production of binding materials in China. Much of the early research was led by intellectual curiosity and the possibility to develop interesting new materials, as in many other countries. However, in recent years, with rapid industrial development in China, many environmental problems have emerged, which have received more and more attention from the Chinese government; this has become the most important driver for the active and extensive research activities on AAMs in China.

S. [142–144] and on AAM fire resistance [145, 146]. In the Czech and Slovak Republics, alkali-activated aluminosilicate binders developed by the company ALLDECO have found utilisation in the immobilisation of nuclear wastes [147]. A range of systems based on metallurgical slags have also been analysed in Romania since the 1980s [148] for construction purposes. L. Provis et al. [117], which have served as platforms for the presentation of the latest scientific advances in the area. Many of the nations in this region have the desire to make use of the by-products of metallurgical processes, which has combined with the need for inexpensive construction materials to provide a strong driver for developments in alkali-activation technology.

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