A5000009517- Tailings Management and Properties
- Rock Mechanics and Modeling
- Mine drainage and remediation techniques
- Mining and Resource Management
- Structural Response to Dynamic Loads
- Tunneling and Rock Mechanics
- Geotechnical and Geomechanical Engineering
- Landslides and related hazards
- Geotechnical Engineering and Underground Structures
- Drilling and Well Engineering
- Grouting, Rheology, and Soil Mechanics
- Materials Engineering and Processing
- Structural Load-Bearing Analysis
- Concrete and Cement Materials Research
- Geophysical Methods and Applications
- Soil and Land Suitability Analysis
- Mechanical Behavior of Composites
- Mechanical Engineering and Vibrations Research
- Seismic Imaging and Inversion Techniques
- Injury Epidemiology and Prevention
- Magnesium Oxide Properties and Applications
- Transportation Safety and Impact Analysis
- Engineering Structural Analysis Methods
- Landfill Environmental Impact Studies
- Geotechnical Engineering and Analysis
Karadeniz Technical University
2012-2024
Bridge University
2017
The durability of full (FT) and deslimed sulphide-rich tailings (DT) cemented paste backfill (CPB) alkali-activated slag (AAS; LSS–S: activated with aqueous sodium silicate SH–S: hydroxide) was investigated based on the mechanical (strength), hydraulic microstructural properties. DT AAS improved strength gain rate by decreasing total- macro porosity. LSS–S configuration had a profound effect development produced 4.3–9.9-fold strengths than ordinary Portland cement (OPC) samples. also...
This paper presents the effect of natural pozzolans as mineral additives on short- and long-term strength stability performance cemented paste backfill (CPB) samples. Prior to their use in CPB studies, — volcanic tuffs (Akkus Trass [AT] Fatsa [FT]) pumice (KP) were tested for pozzolanic characteristics. These tests revealed that activity is closely inter-related with content reactive silica and, accordingly, KP has highest activity. The addition, or increasing amount, binder phase resulted a...
Cemented paste backfill (CPB) allows environmental friendly management of potentially hazardous tailings generated from milling nonferrous metal sulphide ores by placing such into the underground mined‐out openings. The components CPB are tailings, water, and binders. These significantly affect physicomechanical, workability, geotechnical properties CPB. Ordinary Portland cement (OPC) is commonly used binder for operations. effects characteristics OPC extensively studied in study area....
Sulphide-containing tailings can be stored in underground cavities as cemented paste backfill (CPB). Due to the sulphur (S wt.%) content, it is significant predetermine possible environmental impacts of CPB. This study investigates potential for metals leachability and acid mine drainage (AMD) formation (SO4=, pH) from sulphide-rich (TA) granular- monolithic forms CPB produced using these with static, modified acid-base accounting (ABA) tests kinetic humidity cell (HCT). The results have...
Cement paste backfill (CPB) is an effective waste management method allowing the storage of fine process tailings into underground mined-out voids. CPB performance generally depends on sulfur content and type binder. In recent years, there has been in-creasing trend use alkali-activated slag (AAS) to improve properties CPB. This study focuses ultrasonic microstructural investigation effect fineness mechanical, geochemical durability made up AAS (AAS-CPB) over 360 days. this scope, AAS-CPB...
This paper presents the investigation of effect ground vibration components induced blasting events in Ordu-Mesudiye Highway Topçam tunnel on penstock pipe (PP) having 35-400 slopping Hydro-Electrical Power Plant (HEPP). Until excavation passed under PP HEPP, a total 37 shots (26 upper halves and 11 lower half) were monitored (peak particle velocity, acceleration, displacement frequency) measured two different stations. It was also examined whether concrete platform this had crack, damage or...
Paste backfill (PB) is an engineered mixture of mill tailings, binders and water. Ordinary Portland cement (OPC) extensively used as a binder in cemented paste (CPB) operations. However, it known that such calcium-rich have particularly low resistance to acid sulphate attack. In this study, activated blast furnace slag with sodium silicate (AAS-SS) was tested alternative for CPB high-sulphide tailings. A strength loss samples prepared from OPC observed the long term at dosages 5–7 wt%. Those...
Son yıllarda Portland çimentosu (PÇ) yerine belirli oranlarda doğal ve yapay puzolanların kullanılması, çimentolu macun dolgunun (CPB) dayanım duraylılığının iyileştirilmesi, asit sülfat etkisine karşı direncinin arttırılması bağlayıcı maliyetlerinin azaltılması için oldukça yaygın hale gelmiştir. Bu çalışmada yüksek fırın cürufu (YFC) perlit (P) ikamesinin CPB'nin mekanik mikroyapı özelliklerine etkisi araştırılmıştır. PÇ ağırlıkça %20 YFC P ikame edilerek hazırlanan 84 adet CPB numunesi 7,...
Cement paste backfill (CPB) is an effective waste management method allowing the storage of fine process tailings into underground mined-out voids. CPB performance generally depends on properties and type binder. In recent years, there has been increasing trend in use alkali-activated slag (AAS) to improve CPB. This study focuses ultrasonic microstructural investigation effect fineness mechanical, geochemical, durability sulphide-rich made AAS (AAS-CPB) over 360 days. this scope, AAS-CPB...