Generalized hyperbolic formula capturing curing period effect on strength and stiffness of cemented clay

• Published in: Construction & building materials Vol. 199; pp. 63 - 71
• Main Authors: Yao, Kai, Li, Na, Chen, Dar-Hao, Wang, Wei
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 28.02.2019; Reed Business Information, Inc. (US)
• Subjects: Analysis; Cemented clay; Cements (Building materials); Chemical properties; Concrete curing; Curing period; Generalized hyperbolic formula; Mechanical properties; Quality control; Soils; Stiffness; Strength; United States; China; Singapore; Generalized hyperbolic formula; Curing period; Stiffness; Cemented clay; Strength
• ISSN: 0950-0618; 1879-0526
• DOI: 10.1016/j.conbuildmat.2018.11.288

•Generalized hyperbolic formula for strength and stiffness development.•Suitability for various soil types, binder contents, and curing conditions.•Availability for OPC or PBFC stabilized clay. With the increasing popularity of stabilizing soft soils by a cementitious binder, accurate strength prediction of cemented clay with curing period is essential for quality control. In this study, a generalized hyperbolic was proposed to overcome the shortcomings of traditional logarithmic function with regard to both short-term and long-term prediction of strength development. Also, the generalized formula can be used for various cement types, soil types, and curing conditions. It was proved that the model works well for both Ordinary Portland cement (OPC) and Portland blast-furnace cement (PBFC) treated clay. Moreover, the model can also be adopted for stiffness prediction of cemented clay. Based on the proposed model, the predicted strength and stiffness of cemented clay shows high consistency with the measured data from previous literature.