The Effect of Water Repellent Surface Impregnation on Durability of Cement-Based Materials
In many cases, service life of reinforced concrete structures is severely limited by chloride penetration until the steel reinforcement or by carbonation of the covercrete. Water repellent treatment on the surfaces of cement-based materials has often been considered to protect concrete from these de...
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doaj-280dcb21ad784f33830879abcbb2166f2020-11-24T23:15:17ZengHindawi LimitedAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/82601038260103The Effect of Water Repellent Surface Impregnation on Durability of Cement-Based MaterialsPeng Zhang0Huaishuai Shang1Dongshuai Hou2Siyao Guo3Tiejun Zhao4Center for Durability & Sustainability Studies, Qingdao University of Technology, Qingdao 266033, ChinaCenter for Durability & Sustainability Studies, Qingdao University of Technology, Qingdao 266033, ChinaCenter for Durability & Sustainability Studies, Qingdao University of Technology, Qingdao 266033, ChinaCenter for Durability & Sustainability Studies, Qingdao University of Technology, Qingdao 266033, ChinaCenter for Durability & Sustainability Studies, Qingdao University of Technology, Qingdao 266033, ChinaIn many cases, service life of reinforced concrete structures is severely limited by chloride penetration until the steel reinforcement or by carbonation of the covercrete. Water repellent treatment on the surfaces of cement-based materials has often been considered to protect concrete from these deteriorations. In this paper, three types of water repellent agents have been applied on the surface of concrete specimens. Penetration profiles of silicon resin in treated concrete have been determined by FT-IR spectroscopy. Water capillary suction, chloride penetration, carbonation, and reinforcement corrosion in both surface impregnated and untreated specimens have been measured. Results indicate that surface impregnation reduced the coefficient of capillary suction of concrete substantially. An efficient chloride barrier can be established by deep impregnation. Water repellent surface impregnation by silanes also can make the process of carbonation action slow. In addition, it also has been concluded that surface impregnation can provide effective corrosion protection to reinforcing steel in concrete with migrating chloride. The improvement of durability and extension of service life for reinforced concrete structures, therefore, can be expected through the applications of appropriate water repellent surface impregnation.http://dx.doi.org/10.1155/2017/8260103 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Peng Zhang Huaishuai Shang Dongshuai Hou Siyao Guo Tiejun Zhao |
spellingShingle |
Peng Zhang Huaishuai Shang Dongshuai Hou Siyao Guo Tiejun Zhao The Effect of Water Repellent Surface Impregnation on Durability of Cement-Based Materials Advances in Materials Science and Engineering |
author_facet |
Peng Zhang Huaishuai Shang Dongshuai Hou Siyao Guo Tiejun Zhao |
author_sort |
Peng Zhang |
title |
The Effect of Water Repellent Surface Impregnation on Durability of Cement-Based Materials |
title_short |
The Effect of Water Repellent Surface Impregnation on Durability of Cement-Based Materials |
title_full |
The Effect of Water Repellent Surface Impregnation on Durability of Cement-Based Materials |
title_fullStr |
The Effect of Water Repellent Surface Impregnation on Durability of Cement-Based Materials |
title_full_unstemmed |
The Effect of Water Repellent Surface Impregnation on Durability of Cement-Based Materials |
title_sort |
effect of water repellent surface impregnation on durability of cement-based materials |
publisher |
Hindawi Limited |
series |
Advances in Materials Science and Engineering |
issn |
1687-8434 1687-8442 |
publishDate |
2017-01-01 |
description |
In many cases, service life of reinforced concrete structures is severely limited by chloride penetration until the steel reinforcement or by carbonation of the covercrete. Water repellent treatment on the surfaces of cement-based materials has often been considered to protect concrete from these deteriorations. In this paper, three types of water repellent agents have been applied on the surface of concrete specimens. Penetration profiles of silicon resin in treated concrete have been determined by FT-IR spectroscopy. Water capillary suction, chloride penetration, carbonation, and reinforcement corrosion in both surface impregnated and untreated specimens have been measured. Results indicate that surface impregnation reduced the coefficient of capillary suction of concrete substantially. An efficient chloride barrier can be established by deep impregnation. Water repellent surface impregnation by silanes also can make the process of carbonation action slow. In addition, it also has been concluded that surface impregnation can provide effective corrosion protection to reinforcing steel in concrete with migrating chloride. The improvement of durability and extension of service life for reinforced concrete structures, therefore, can be expected through the applications of appropriate water repellent surface impregnation. |
url |
http://dx.doi.org/10.1155/2017/8260103 |
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