Centro de Território, Ambiente e Construção
Escola de Engenharia da Universidade do Minho
Campus de Azurém
4800-058 Guimarães, Portugal
Phone: + 351 253 510 200 (517 206)
Fax: + 351 253 510 217
Email: geral@ctac.uminho.pt
Title | Capillary transport of water in cracked and non-cracked UHPFRC specimens |
Publication Type | Papers in International Journals |
Year of Publication | 2019 |
Authors | Matos A. M., Nunes S., and Aguiar, J. B. |
Abstract | The primary goal of the present paper is to investigate the influence of cracking on water transport by capillary suction of UHPFRC. Prismatic specimens were firstly loaded under four-point bending up to a specific crack open displacement (COD). Target COD, under loading, was varied between 200 and 400 µm, in steps of 50 µm. After unloading, a COD recovery was observed with residual COD ranging between 116-334 µm and 75-248 µm for UHPFRC-1.5% and UHPFRC-3.0% specimens, respectively. The crack pattern created was characterised (number of cracks and crack width) befora capillarity testing. Sorptivity results of cracked UFPFRC-1.5% and UFPFRC-3.0% specimens remained in the range of 0.024 to 0.044 mg/(mm2.min0.5), which are about 2 to 4 times higher than the sorptivity results of non-cracked UHPFRC specimens. However, the maximum sptorvity observed on cracked UHPFRC is relatvely low as compared to typical sorptivity resuts found in good quality conventional concrete or engineered cementitious composites (ECC). |
Journal | Journal of Advanced Concrete Technology |
Volume | 17 |
Pagination | 244-259 |
Date Published | 2019-05-01 |
DOI | 10.3151/jact.17.5.244 |
Keywords | Capillary, Cracked, UHPFRC |
Rights | embargoedAccess (2 Years) |
Peer reviewed | yes |
Status | published |
The Centre for Territory, Environment and Construction (CTAC) is a research unit of the School of Engineering of University of Minho (UMinho), recognised by the “FCT – Fundação para a Ciência e Tecnologia” (Foundation for Science and Technology), associated to the Department of Civil Engineering (DEC), with whom it shares resources and namely human resources.
Currently CTAC aggregates 24 researchers holding a PhD of which 20 are faculty professors of the Civil Engineering Department. Read more
Centro de Território, Ambiente e Construção
Escola de Engenharia da Universidade do Minho
Campus de Azurém
4800-058 Guimarães, Portugal
Phone: + 351 253 510 200 (517 206)
Fax: + 351 253 510 217
Email: geral@ctac.uminho.pt