Assessment of test methods for characterizing the hydrophobic nature of surface-treated High Performance Concrete

Sandro Weisheit, Seraphin Hubert Unterberger, Tobias Bader, Roman Lackner

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The durability of concrete and concrete structures is significantly influenced by environmental conditions, resulting in e.g. the ingress of water and incorporated aggressive agents, with the latter being responsible for initiating and progress of deterioration processes within the material system. In order to reduce the ingress of water, water repellent agents are applied onto the concrete surface (surface treatment), with its performance strongly depending on the agent itself, the mode of application, environmental conditions etc. For the assessment of the performance of surface-treated concrete, standard test methods, such as Karsten-Tube penetration test, contact angle measurement, hydrophobic quality test, as well as more refined test methods, such as Infrared Spectroscopy (IR), moisture sorption analysis, and scanning electron microscopy coupled with elemental X-ray analysis (SEM/EDS) are used. These methods are commonly employed for the assessment of surface-treated ordinary concrete, leaving the question on their applicability to material systems exhibiting a denser microstructure, such as High Performance Concrete (HPC), unanswered. Within this experimental study, the aforementioned test methods are critically reviewed regarding their potential application to HPC, finally providing recommendations for evaluating the performance and durability of water-repellent surface treatment when applied to HPC.
Original languageEnglish
Pages (from-to)145-153
Number of pages9
JournalConstruction and Building Materials
Volume110
DOIs
Publication statusPublished - 2016

Fingerprint

High performance concrete
Concretes
Water
Surface treatment
Durability
Scanning electron microscopy
X ray analysis
Angle measurement
Concrete construction
Contact angle
Deterioration
Sorption
Energy dispersive spectroscopy
Infrared spectroscopy
Moisture
Microstructure

Cite this

@article{46b9fc16bde449ee9d09ca2e3f529243,
title = "Assessment of test methods for characterizing the hydrophobic nature of surface-treated High Performance Concrete",
abstract = "The durability of concrete and concrete structures is significantly influenced by environmental conditions, resulting in e.g. the ingress of water and incorporated aggressive agents, with the latter being responsible for initiating and progress of deterioration processes within the material system. In order to reduce the ingress of water, water repellent agents are applied onto the concrete surface (surface treatment), with its performance strongly depending on the agent itself, the mode of application, environmental conditions etc. For the assessment of the performance of surface-treated concrete, standard test methods, such as Karsten-Tube penetration test, contact angle measurement, hydrophobic quality test, as well as more refined test methods, such as Infrared Spectroscopy (IR), moisture sorption analysis, and scanning electron microscopy coupled with elemental X-ray analysis (SEM/EDS) are used. These methods are commonly employed for the assessment of surface-treated ordinary concrete, leaving the question on their applicability to material systems exhibiting a denser microstructure, such as High Performance Concrete (HPC), unanswered. Within this experimental study, the aforementioned test methods are critically reviewed regarding their potential application to HPC, finally providing recommendations for evaluating the performance and durability of water-repellent surface treatment when applied to HPC.",
author = "Sandro Weisheit and Unterberger, {Seraphin Hubert} and Tobias Bader and Roman Lackner",
year = "2016",
doi = "10.1016/j.conbuildmat.2016.02.010",
language = "English",
volume = "110",
pages = "145--153",
journal = "Construction and Building Materials",
issn = "0950-0618",
publisher = "Elsevier Limited",

}

Assessment of test methods for characterizing the hydrophobic nature of surface-treated High Performance Concrete. / Weisheit, Sandro; Unterberger, Seraphin Hubert; Bader, Tobias; Lackner, Roman.

In: Construction and Building Materials, Vol. 110, 2016, p. 145-153.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Assessment of test methods for characterizing the hydrophobic nature of surface-treated High Performance Concrete

AU - Weisheit, Sandro

AU - Unterberger, Seraphin Hubert

AU - Bader, Tobias

AU - Lackner, Roman

PY - 2016

Y1 - 2016

N2 - The durability of concrete and concrete structures is significantly influenced by environmental conditions, resulting in e.g. the ingress of water and incorporated aggressive agents, with the latter being responsible for initiating and progress of deterioration processes within the material system. In order to reduce the ingress of water, water repellent agents are applied onto the concrete surface (surface treatment), with its performance strongly depending on the agent itself, the mode of application, environmental conditions etc. For the assessment of the performance of surface-treated concrete, standard test methods, such as Karsten-Tube penetration test, contact angle measurement, hydrophobic quality test, as well as more refined test methods, such as Infrared Spectroscopy (IR), moisture sorption analysis, and scanning electron microscopy coupled with elemental X-ray analysis (SEM/EDS) are used. These methods are commonly employed for the assessment of surface-treated ordinary concrete, leaving the question on their applicability to material systems exhibiting a denser microstructure, such as High Performance Concrete (HPC), unanswered. Within this experimental study, the aforementioned test methods are critically reviewed regarding their potential application to HPC, finally providing recommendations for evaluating the performance and durability of water-repellent surface treatment when applied to HPC.

AB - The durability of concrete and concrete structures is significantly influenced by environmental conditions, resulting in e.g. the ingress of water and incorporated aggressive agents, with the latter being responsible for initiating and progress of deterioration processes within the material system. In order to reduce the ingress of water, water repellent agents are applied onto the concrete surface (surface treatment), with its performance strongly depending on the agent itself, the mode of application, environmental conditions etc. For the assessment of the performance of surface-treated concrete, standard test methods, such as Karsten-Tube penetration test, contact angle measurement, hydrophobic quality test, as well as more refined test methods, such as Infrared Spectroscopy (IR), moisture sorption analysis, and scanning electron microscopy coupled with elemental X-ray analysis (SEM/EDS) are used. These methods are commonly employed for the assessment of surface-treated ordinary concrete, leaving the question on their applicability to material systems exhibiting a denser microstructure, such as High Performance Concrete (HPC), unanswered. Within this experimental study, the aforementioned test methods are critically reviewed regarding their potential application to HPC, finally providing recommendations for evaluating the performance and durability of water-repellent surface treatment when applied to HPC.

U2 - 10.1016/j.conbuildmat.2016.02.010

DO - 10.1016/j.conbuildmat.2016.02.010

M3 - Article

VL - 110

SP - 145

EP - 153

JO - Construction and Building Materials

JF - Construction and Building Materials

SN - 0950-0618

ER -