Investigation of Silane Impregnation for Protection of Alkali-Activated Slag Mortar
This paper investigated the effects of silane impregnation on the protective properties of alkali-activated slag (AAS) mortars. The surface silane impregnation on water absorption, contact angle, and penetration depth were examined. The related protective mechanism regarding silane impregnation was...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/9970753 |
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| author | Jin Li Peiyuan Chen Haibing Cai Ying Xu Murodjon Rasulov |
| author_facet | Jin Li Peiyuan Chen Haibing Cai Ying Xu Murodjon Rasulov |
| author_sort | Jin Li |
| collection | DOAJ |
| description | This paper investigated the effects of silane impregnation on the protective properties of alkali-activated slag (AAS) mortars. The surface silane impregnation on water absorption, contact angle, and penetration depth were examined. The related protective mechanism regarding silane impregnation was analyzed by scanning electron microscope (SEM), X-ray diffraction (XRD), and Fourier infrared spectroscopy (FT-IR). The results showed that the surface of the AAS mortar after silane impregnation was transformed from hydrophilic to hydrophobic with an increased contact angle of 80° from 36° to 116°. And the water absorption was significantly decreased by 74.42% to 97.79%. The penetration depth of the two-layer coating was dramatically higher than that of the one-layer coating. The optimal coating method and dosage of silane were two-layer coating and 200 g/m2. In addition, silane impregnation formed a stable Si-O bond with AAS mortars through a hydrolytic condensation reaction and the −CH2CH3 group of the silane acted on the surface of the AAS mortars. |
| format | Article |
| id | doaj-art-80bf2d4d8a074e9b92b7b752dd16f821 |
| institution | OA Journals |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-80bf2d4d8a074e9b92b7b752dd16f8212025-08-20T02:08:50ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422021-01-01202110.1155/2021/99707539970753Investigation of Silane Impregnation for Protection of Alkali-Activated Slag MortarJin Li0Peiyuan Chen1Haibing Cai2Ying Xu3Murodjon Rasulov4School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, ChinaSchool of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, ChinaSchool of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, ChinaSchool of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, ChinaSchool of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, ChinaThis paper investigated the effects of silane impregnation on the protective properties of alkali-activated slag (AAS) mortars. The surface silane impregnation on water absorption, contact angle, and penetration depth were examined. The related protective mechanism regarding silane impregnation was analyzed by scanning electron microscope (SEM), X-ray diffraction (XRD), and Fourier infrared spectroscopy (FT-IR). The results showed that the surface of the AAS mortar after silane impregnation was transformed from hydrophilic to hydrophobic with an increased contact angle of 80° from 36° to 116°. And the water absorption was significantly decreased by 74.42% to 97.79%. The penetration depth of the two-layer coating was dramatically higher than that of the one-layer coating. The optimal coating method and dosage of silane were two-layer coating and 200 g/m2. In addition, silane impregnation formed a stable Si-O bond with AAS mortars through a hydrolytic condensation reaction and the −CH2CH3 group of the silane acted on the surface of the AAS mortars.http://dx.doi.org/10.1155/2021/9970753 |
| spellingShingle | Jin Li Peiyuan Chen Haibing Cai Ying Xu Murodjon Rasulov Investigation of Silane Impregnation for Protection of Alkali-Activated Slag Mortar Advances in Materials Science and Engineering |
| title | Investigation of Silane Impregnation for Protection of Alkali-Activated Slag Mortar |
| title_full | Investigation of Silane Impregnation for Protection of Alkali-Activated Slag Mortar |
| title_fullStr | Investigation of Silane Impregnation for Protection of Alkali-Activated Slag Mortar |
| title_full_unstemmed | Investigation of Silane Impregnation for Protection of Alkali-Activated Slag Mortar |
| title_short | Investigation of Silane Impregnation for Protection of Alkali-Activated Slag Mortar |
| title_sort | investigation of silane impregnation for protection of alkali activated slag mortar |
| url | http://dx.doi.org/10.1155/2021/9970753 |
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