Cemented Paste Backfill 1-D Consolidation Results Interpreted in the Context of Ground Reaction Curves
Sign Up to like & getrecommendations! Published in 2020 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-020-02173-5
Abstract: Deep and high-stress mining relies on backfilling the minedout voids to support the surrounding host rock and mitigate rockburst risk. Rational engineering design requires quantifying stress transfer from the host rock to the backfill as… read more here.
Keywords: consolidation; backfill; cemented paste; stress ... See more keywords
Quantitative investigation on micro-parameters of cemented paste backfill and its sensitivity analysis
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Central South University"
DOI: 10.1007/s11771-020-4294-1
Abstract: The mechanical properties of cemented paste backfill (CPB) depend heavily on its pore structural characteristics and micro-structural changes. In order to explore the variation mechanisms of macro-mechanical characteristics and micro-structure of CPB. CPB specimens with… read more here.
Keywords: analysis; cemented paste; sensitivity; paste backfill ... See more keywords
Safety of barricades in cemented paste-backfilled stopes
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Minerals, Metallurgy and Materials"
DOI: 10.1007/s12613-020-2006-3
Abstract: In underground mining, there has been an increasing use of “cemented paste” for the backfilling of stopes. As this cemented paste backfill (CPB) enters the stope as a fluid, shotcrete barricades are often used to… read more here.
Keywords: paste; barricades cemented; cemented paste; safety barricades ... See more keywords
Influence of time and temperature on rheology and flow performance of cemented paste backfill
Sign Up to like & getrecommendations! Published in 2020 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2019.117117
Abstract: Abstract The Cemented Paste Backfill (CPB) technology can provide effective solutions to mining-related environmental and safety problems, and access to achievement of green mining and deep mining. Rheological properties of paste are important factors that… read more here.
Keywords: time temperature; rheology; time; cemented paste ... See more keywords
Effect of external sulfate attack on the mechanical behavior of cemented paste backfill
Sign Up to like & getrecommendations! Published in 2020 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2020.120968
Abstract: Abstract The sulfate-rich mine water in underground metal mines causes external sulfate attack on cemented paste backfill (CPB) and affects its mechanical stability. To simulate the effect of mine water environment in metal mines, CPB… read more here.
Keywords: effect; cemented paste; sulfate; external sulfate ... See more keywords
Numerical simulation of stress-strain behaviour of cemented paste backfill in triaxial compression
Sign Up to like & getrecommendations! Published in 2017 at "Engineering Geology"
DOI: 10.1016/j.enggeo.2017.10.021
Abstract: Abstract This paper develops a numerical model to reproduce the stress-strain curve of cemented paste backfill (CPB) based on the discrete element method-2 dimensional particle flow code (PFC2D), mainly to predict the CPB mechanical properties… read more here.
Keywords: strain behaviour; cemented paste; model; paste backfill ... See more keywords
Investigation of spatial stratified heterogeneity of cemented paste backfill characteristics in construction demolition waste recycled aggregates
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Cleaner Production"
DOI: 10.1016/j.jclepro.2019.119332
Abstract: Abstract This paper discusses the application of construction demolition waste (CDW) in the field of backfill mining as an efficient way of increasing the CDW utilization rate. But much of the research on cemented paste… read more here.
Keywords: demolition waste; backfill; cemented paste; recycled aggregates ... See more keywords
Utilization of phosphogypsum and phosphate tailings for cemented paste backfill.
Sign Up to like & getrecommendations! Published in 2017 at "Journal of environmental management"
DOI: 10.1016/j.jenvman.2017.06.027
Abstract: This research is an investigation of the feasibility of utilizing phosphogypsum (PG) and phosphate tailings (PTS) for cemented paste backfill. Some experiments were conducted with various combinations of PTS and PG as aggregates, along with… read more here.
Keywords: phosphate tailings; backfill; phosphogypsum phosphate; cemented paste ... See more keywords
Utilisation of construction and demolition waste as cemented paste backfill material for underground mine openings.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of environmental management"
DOI: 10.1016/j.jenvman.2018.05.075
Abstract: This study presents the utilisation of finely ground construction and demolition waste (CDW) as partial replacement (5-15 wt.%) to sulphide tailings on the short- and long-term strength, durability (i.e. no loss of strength) and microstructural properties… read more here.
Keywords: demolition waste; cemented paste; cpb; construction demolition ... See more keywords
Effect of overflow tailings properties on cemented paste backfill.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of environmental management"
DOI: 10.1016/j.jenvman.2019.01.040
Abstract: This paper presents the results of an experimental study on the unconfined compressive strength (UCS), indirect tensile strength (ITS), microstructural properties and environmental impacts of overflow tailings (OFT) cemented paste backfill (CPB). The test results… read more here.
Keywords: overflow tailings; strength; paste backfill; cemented paste ... See more keywords
Influence of superplasticizers on mechanical properties and workability of cemented paste backfill
Sign Up to like & getrecommendations! Published in 2017 at "Minerals Engineering"
DOI: 10.1016/j.mineng.2017.11.006
Abstract: Abstract This paper presents new insights into the mechanical properties and workability of cemented paste backfills (CPBs) containing various superplasticizers. Effects of these admixtures on cement hydration were also evaluated. Five admixtures belonging to the… read more here.
Keywords: properties workability; mechanical properties; workability cemented; cemented paste ... See more keywords