Methods of improving the workability and mechanical properties of sulfoaluminate cement mortar

• Autorzy: Liu Ping , Li Teng , Chen Pang , Cao Zhonglu , Jia Guanyuan

Identyfikatory

DOI

10.1007/s43452-023-00822-4

• Języki publikacji: EN

Abstrakty

EN

The rapid setting rate restricts the application of sulfoaluminate cement (SAC), it is necessary to develop SAC mortar with a controlled setting time. Therefore, this paper tries to use sodium gluconate (SG) and mineral admixture to reduce its reaction speed and study the effects of SG and mineral admixture on the workability, mechanical properties and durability of SAC mortar. First, the optimal amount of SG doping was determined to be 0.4% under the comprehensive consideration of the working performance, mechanical performance, and durability of SAC. Again, based on the determination of SG dosing, the effects of four mineral admixtures, fly ash, silica fume, Ground Granulated Blast furnace Slag (GGBS), and limestone powder, on the mechanical properties and chloride ion penetration resistance of SAC were studied, and the optimal dosing of each mineral admixture was determined. Finally, a microscopic analysis of the specimen was conducted through a Scanning Electron Microscope (SEM) to reveal the reaction mechanism of SAC from a macroscopic perspective.

Słowa kluczowe

EN

sulfoaluminate cement; sodium gluconate; mineral admixture; working performance; mechanical properties; chloride penetration resistance

PL

glukonian sodu; właściwości mechaniczne; zaprawa mineralna

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2024
• Tom: Vol. 24, no. 1
• Strony: art. no. e12, 2024
• Opis fizyczny: Bibliogr. 45 poz., fot., rys., wykr.

Twórcy

autor

Liu Ping

• School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China

autor

Li Teng

• School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China

autor

Chen Pang

• School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China

• https://orcid.org/0000-0001-9953-3496

autor

Cao Zhonglu

• CCCC Tianjin Port Engineering Institute Co., Ltd., Tianjin 300222, China
• CCCC First Harbor Engineering Company Ltd., Tianjin 300461, China

autor

Jia Guanyuan

• School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025)