Results 21 to 30 of about 28,401 (246)

Processing of Gypsum Construction and Demolition Waste and Properties of Secondary Gypsum Binder

open access: yesRecycling, 2022
The waste amount coming from construction and demolition (CDW) has significant volume and potential to provide the backbone of a secondary material bank.
Girts Bumanis   +3 more
doaj   +1 more source

Gypsum speleogenesis: a hydrogeological classification of gypsum caves

open access: yesInternational Journal of Speleology, 2017
This article reviews the state of the art of speleogenetic investigations in gypsum karsts from numerous studies carried out over the past 50 years in Spain. A classification of gypsum karsts is proposed based on the hydrogeological, tectonic and stratigraphic criteria that decisively control the evolution of gypsum karsts.
Calaforra, José María   +1 more
openaire   +5 more sources

Reconnaissance Study of Gypsum from the Fatha Formation as Raw Material for Production of Gypsum Powder in Shaqlawa Area, Erbil, Kurdistan Region, Iraq

open access: yesIraqi Geological Journal, 2022
The quality of gypsum rock as raw material from the Fatha Formation in Talajar Village in the Shaqlawa area for ground gypsum production was assessed. A total of three samples of gypsum were collected from different locations of the same horizon
Rzger Abdulkarim Abdula   +3 more
doaj   +1 more source

Acid leaching technology for post-consumer gypsum purification [version 3; peer review: 2 approved, 1 approved with reservations]

open access: yesOpen Research Europe
Background Contaminants and water-soluble salts present in mechanically recycled gypsum from refurbishment and demolition (post-consumer) plasterboard waste limit its use as a secondary raw material in plasterboard manufacturing.
Mohamed Osmani   +5 more
doaj   +1 more source

Roles of gypsum/salt-bearing sequence in hydrocarbon accumulation and storage

open access: yesEnergy Geoscience, 2023
Gypsum/salt beds are widely developed in petroliferous basins across the world. Most basins with gypsum/salt beds have been proven to host abundant hydrocarbon resources.
Wenhui Liu   +7 more
doaj   +1 more source

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside   +3 more
wiley  

+4 more sources

The Effects of Different Water Types on the Dissolution, Physical Appearance, and Compressive Strength of Gypsum Rock

open access: yesJournal of Engineering, 2023
Dissolution of gypsum rock in water is significant, which may result in hydrocarbon reservoir formation and evaporate deposits. However, the complexity of the gypsum dissolution process is still of interest because of its uncleanness that requires more ...
Tavga Aram Abdalla Salih   +2 more
doaj   +1 more source

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

open access: yesAdvanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang   +7 more
wiley   +1 more source

Investigation of the type and content of gypsum on the dimensional stability and mechanical properties of gypsum particleboard [PDF]

open access: yesIranian Journal of Wood and Paper Industries, 2014
In this study in order to investigate the effect of gypsum type on the physical and mechanical properties of gypsum Particleboard were used from two type Jebel and Micronize gypsum.
Hossein Rangavar   +2 more
doaj  

Hydration Behavior of Tricalcium Silicate in Seawater Relevant Salt Systems: A Hybrid Study with the Aid of Machine Learning

open access: yesAdvanced Intelligent Discovery, EarlyView.
The hydration behavior of C3S in seawater‐relevant solutions is studied based on experiments, boundary nucleation and growth (BNG) modeling, and machine learning. The main ions included in seawater modify hydration mechanisms, with MgCl2 showing the strongest acceleration effect at the same concentration.
Yanjie Sun   +6 more
wiley   +1 more source

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