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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Rethinking cement standards: Opportunities for a better future

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Author(s):
John, Vanderley M. [1] ; Quattrone, Marco ; Abrao, Pedro C. R. A. ; Cardoso, Fabio A.
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Dept Construct Engn, Escola Politecn, BR-05508070 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: CEMENT AND CONCRETE RESEARCH; v. 124, OCT 2019.
Web of Science Citations: 0
Abstract

This paper discusses possible changes in cement standards to cope with megatrends: climate change and industry 4.0. Most standards are prescriptive, defining cements by composition of SCMs, hence the number of types increase, and composition limits widen. Cements are classified by compressive strength of fixed water/cement mortars. This pragmatic approach ignores physical effects, that results in variable mixing water demand. It hinders the development of cements with low water demand, products of optimized particle engineering and dispersants, which allows formulate cements with lower clinker fraction. Also, most standard tests are difficult to automate to generate large datasets crucial to train artificial intelligence. Performance-based standards are an alternative, but simple and progressive approach is recommended to ease transition. Cement types should not be solely defined by composition but rather classified by performance characteristics including durability and environmental. Combined water fraction, cwf, may be a good parameter to replace strength class. (AU)

FAPESP's process: 14/50948-3 - INCT 2014: advanced eco-efficient technologies in cementitious products
Grantee:Vanderley Moacyr John
Support Opportunities: Research Projects - Thematic Grants