Investigation on the effect of silane coupling agent treatment of steel fibers on the durability of UHPC

• Autorzy: Du Shuang , Luan Congqi , Yuan Lianwang , Du Peng , Zhou Zonghui , Wang Jinbang

Identyfikatory

DOI

10.1007/s43452-023-00667-x

• Języki publikacji: EN

Abstrakty

EN

Ultra-high performance concrete (UHPC) is a type of cementitious material that has been specifically engineered to achieve exceptional mechanical properties and durability through optimized particle filling. However, the addition of steel fibers to the UHPC matrix creates a transitional region at the interface. Previous research has indicated that the use of silane coupling agents (SCA) on the surface of steel fibers is a promising approach for improving the bonding properties between the fibers and the matrix. This study aims to explore the impact of varying amounts of untreated steel fibers versus those that have undergone SCA treatment on the durability of UHPC. The findings indicate that treating steel fibers with SCA significantly narrows the pore space between the matrix and steel fibers, as well as enhances the production of hydration products on the steel fiber surface. Furthermore, this treatment facilitates the formation of a compact transition zone between the UHPC matrix and steel fibers. The electrochemical corrosion resistance, chloride ion penetration resistance, frost resistance, and sulfate erosion resistance of UHPC are all enhanced by this method. As a result, the durability of UHPC is significantly improved, making it an extremely promising avenue of research.

Słowa kluczowe

EN

ultra high performance concrete; UHPC; steel fiber; silane coupling agent; SCA; surface treatment; interfacial reinforcement; durability improvement

PL

beton ultrawysokowartościowy; UHPC; włókno stalowe; SCA; obróbka powierzchniowa; poprawa trwałości

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2023
• Tom: Vol. 23, no. 2
• Strony: art. no. e118, 2023
• Opis fizyczny: Bibliogr. 45 poz., rys., tab., wykr.

Twórcy

autor

Du Shuang

• Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, China
• State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Sobute New Materials Co., Ltd., Nanjing 211103, China

autor

Luan Congqi

• Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, China

autor

Yuan Lianwang

• Shandong Hi-Speed Road and Bridge Technology Co., LTD., Jinan 250021, China

autor

Du Peng

• Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, China

autor

Zhou Zonghui

• Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, China

autor

Wang Jinbang

• Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, China
• Shangdong Ecological Environment Research Institute Co., Ltd., Jinan 250022, China

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).