ASR and sulphate performance of mortar containing industrial waste

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Ana Mafalda Matos (Author) FEUP; Joana Sousa Coutinho (Author) FEUP

Journal

Title: Structural Concrete

Vol. 17 No. 1

Pages: 84-95

ISSN: 1464-4177

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 5 Citations

Scopus - 8 Citations

INSPEC

COMPENDEX

Scientific classification

FOS: Engineering and technology

CORDIS: Technological sciences

Other information

Authenticus ID: P-00G-Z9Z

DOI: 10.1002/suco.201400095

Abstract (EN): Greener concrete using adequate industrial waste is a preferred option for sustainable construction. Alkali-silica reaction (ASR) and sulfate attack (SA) on concrete can be minimized by the use of mineral additions being particularly interesting if waste derived. Grits from a paper industry, waste glass and two types of biomass ash were used as 10% cement replacement in mortar and tested for ASR and SA. Results and Scanning Electron Mycroscopy observations were compared to plain mortar and to mortar containing commercial silica fume. All waste materials mitigated ASR compared to control mortar, Resistance to sulphates was increased for one of the biomass ashes used and especially for glass powder which surpassed silica fume. Therefore two of these waste materials seem to be promising to use as partial replacement material for cement leading to enhanced durability and thus contributing to sustainable construction.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12