Durability of an UHPC containing spent equilibrium catalyst

• Type: Article in International Scientific Journal
• Date: 2021

Authors

Ana Mafalda Matos (Author) FEUP; Sandra Nunes (Author) FEUP; Carla Costa (Author) Other; José L. Barroso Aguiar (Author) Other

Journal

Title: Construction and Building Materials

Vol. 305

Pages: 1-15

ISSN: 0950-0618

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 2 Citations

Other information

Authenticus ID: P-00V-DX4

DOI: 10.1016/j.conbuildmat.2021.124681

Abstract (EN): UHPC is an advanced cementitious material able to meet the current construction industry challenges regarding structural safety and durability. However, new UHPC formulations with limited shrinkage are still being pursued to reduce residual tensile stresses in the UHPFRC layers, for rehabilitation/strengthening applications. This investigation estimates the durability of a non-proprietary UHPC incorporating a by-product originated by the oil refinery industry (ECat), as an internal curing agent. Direct and indirect transport properties measurements as well as the carbonation assessment and evaluation of dimensional resilience to potential deleterious reactions revealed that the new UHPC possesses an excellent durability performance, typical of these materials. These results combined with its self-compacting ability, low autogenous shrinkage and high compressive strength confirm the belief in the role of this new UHPC towards a high-tech construction.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 15