Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Investigation at micro- and nano-scale is beneficial for the fundamental study of cement-based material as an extremely complex composite. This paper presents a preliminary exploration on the unhydrated cement grain/ C-S-H gel interface using nano-scratch technique. By comprehensive analysis of the penetration depth, the coefficient of friction, and the elastic deformation ratio, the interfacial width of different w/c ratio and curing age were obtained, which shows a tendency to increase with the curing age in the range of 1-4 um, while has no relation to the w/c ratio.
Investigation at micro- and nano-scale is beneficial for the fundamental study of cement-based material as an extremely complex composite. This paper presents a preliminary exploration on the unhydrated cement grain/ C-S-H gel interface using nano-scratch technique. By comprehensive analysis of the penetration depth, the coefficient of friction, and the elastic deformation ratio, the interfacial width of different w/c ratio and curing age were obtained, which shows a tendency to increase with the curing age in the range of 1-4 um, while has no relation to the w/c ratio.
Study on the Unhydrated Cement Grain/C-S-H Gel Interface in Cement Paste by Use of Nano-Scratch Technique
2013
5 Seiten
Aufsatz (Konferenz)
Englisch
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