University of Hertfordshire

From the same journal

By the same authors

Autogenous self-healing of cement with expansive minerals-I: Impact in early age crack healing

Research output: Contribution to journalArticlepeer-review

Standard

Autogenous self-healing of cement with expansive minerals-I : Impact in early age crack healing. / Qureshi, Tanvir; Kanellopoulos, Antonios; Al-Tabbaa, Abir.

In: Construction and Building Materials, Vol. 192, 20.12.2018, p. 768-784.

Research output: Contribution to journalArticlepeer-review

Harvard

APA

Vancouver

Author

Bibtex

@article{1294ec733db549d6af6948273ca84998,
title = "Autogenous self-healing of cement with expansive minerals-I: Impact in early age crack healing",
abstract = "This study investigates the impact of expansive minerals, namely magnesium oxide, bentonite clay, and quicklime on the early age autogenous self-healing capacity of Portland cement (PC) paste. Individual mineral dosage in PC was studied comprehensively together with several multiple mineral combinations. The study also covers a brief state of the art on autogenous self-healing and the use of minerals. The healing performance was compared using flexural strength recovery, crack sealing, and permeability tests. Materials microstructural investigations were carried out using XRD, TGA and SEM-EDX. The hydrated and swelling products of expansive minerals have effectively contributed to the production of healing materials. Cracks in the range of 180 µm healed efficiently in a mineral containing mixes within 28 days. Self-healing recovery was triggered through the crack bridging (strength recovery), sealing (physical closer of cracks through crystallisation) and durability performance improvement.",
keywords = "Bentonite clay, Crack bridging, Crystallisation, Durability improvement, Magnesium oxide (MgO), Quicklime, Strength recovery",
author = "Tanvir Qureshi and Antonios Kanellopoulos and Abir Al-Tabbaa",
note = "{\textcopyright} Crown copyright 2018. This manuscript is made available under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International licence (CC BY-NC-ND 4.0). For further details please see: https://creativecommons.org/licenses/by-nc-nd/4.0/",
year = "2018",
month = dec,
day = "20",
doi = "10.1016/j.conbuildmat.2018.10.143",
language = "English",
volume = "192",
pages = "768--784",
journal = "Construction and Building Materials",
issn = "0950-0618",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - Autogenous self-healing of cement with expansive minerals-I

T2 - Impact in early age crack healing

AU - Qureshi, Tanvir

AU - Kanellopoulos, Antonios

AU - Al-Tabbaa, Abir

N1 - © Crown copyright 2018. This manuscript is made available under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International licence (CC BY-NC-ND 4.0). For further details please see: https://creativecommons.org/licenses/by-nc-nd/4.0/

PY - 2018/12/20

Y1 - 2018/12/20

N2 - This study investigates the impact of expansive minerals, namely magnesium oxide, bentonite clay, and quicklime on the early age autogenous self-healing capacity of Portland cement (PC) paste. Individual mineral dosage in PC was studied comprehensively together with several multiple mineral combinations. The study also covers a brief state of the art on autogenous self-healing and the use of minerals. The healing performance was compared using flexural strength recovery, crack sealing, and permeability tests. Materials microstructural investigations were carried out using XRD, TGA and SEM-EDX. The hydrated and swelling products of expansive minerals have effectively contributed to the production of healing materials. Cracks in the range of 180 µm healed efficiently in a mineral containing mixes within 28 days. Self-healing recovery was triggered through the crack bridging (strength recovery), sealing (physical closer of cracks through crystallisation) and durability performance improvement.

AB - This study investigates the impact of expansive minerals, namely magnesium oxide, bentonite clay, and quicklime on the early age autogenous self-healing capacity of Portland cement (PC) paste. Individual mineral dosage in PC was studied comprehensively together with several multiple mineral combinations. The study also covers a brief state of the art on autogenous self-healing and the use of minerals. The healing performance was compared using flexural strength recovery, crack sealing, and permeability tests. Materials microstructural investigations were carried out using XRD, TGA and SEM-EDX. The hydrated and swelling products of expansive minerals have effectively contributed to the production of healing materials. Cracks in the range of 180 µm healed efficiently in a mineral containing mixes within 28 days. Self-healing recovery was triggered through the crack bridging (strength recovery), sealing (physical closer of cracks through crystallisation) and durability performance improvement.

KW - Bentonite clay

KW - Crack bridging

KW - Crystallisation

KW - Durability improvement

KW - Magnesium oxide (MgO)

KW - Quicklime

KW - Strength recovery

UR - http://www.scopus.com/inward/record.url?scp=85055665482&partnerID=8YFLogxK

U2 - 10.1016/j.conbuildmat.2018.10.143

DO - 10.1016/j.conbuildmat.2018.10.143

M3 - Article

AN - SCOPUS:85055665482

VL - 192

SP - 768

EP - 784

JO - Construction and Building Materials

JF - Construction and Building Materials

SN - 0950-0618

ER -