Conference Agenda
Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).
Please note that all times are shown in the time zone of the conference. The current conference time is: 24th Aug 2026, 05:30:45am America, Santiago
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Daily Overview |
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15B: Civil & Construction Virtual location: VIRTUAL: Agora Meetings | |
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4:00pm - 4:08pm
Evaluation of Tailings Dam Slope Stability Using Cement-Treated Soil with Duraflex Addition 1: Universidad de Ingeniería y Tecnología, Peru; 2: Universidad Privada del Norte - (PE) Slope stability in tailings dams represents a critical challenge in the mining industry due to the potential impacts of failure. This research evaluates the effectiveness of the soil-cement technique with the addition of Duraflex for slope stabilization in dams constructed with borrow material. Geotechnical parameters were determined for representative tailings mixtures (fine sand and clay in 50/50 and 75/25 ratios), treated with 10 % Type I Portland cement by soil weight and the addition of Duraflex at 2 % by cement weight. Grain size analysis, Standard Proctor, direct shear, and unconfined compressive strength tests were conducted at 7 and 28 days. Stability analyses were performed on a realistic dam section using the limit equilibrium methodology (Spencer's method) under static and pseudo-static conditions. Results showed that the natural soil presented a static Factor of Safety (FoS) of 1.48, while soil-cement improvement increased FoS values above 2.00. The addition of Duraflex improved initial strength, particularly at 7 days. A brittle behavior was observed in the cemented mixtures; however, pseudo-static FoS values exceeded 3.00, confirming the technical effectiveness of the proposal. | |