Results 41 to 50 of about 217,054 (345)

Sulfur (34S/32S) isotope composition of gypsum and implications for deep cave formation on the Nullarbor Plain, Australia

International Journal of Speleology, 2019
Large deep caves with little relation to surface topography are distinctive karst features on the Nullarbor Plain of Australia. The presence of gypsum deposits and chemoautotrophic bacteria within the caves have been suggested as evidence for cave ...
Matej Lipar, Mateja Ferk, Sonja Lojen, Milo Barham   +3 more
doaj   +1 more source

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

Energy 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, Yining Li, Quanyou Liu, Xiaofeng Wang, Qingqiang Meng, Dianwei Zhang, Longfei Lu, Houyong Luo   +7 more
doaj   +1 more source

New insight into the phase changes of gypsum

Materials Structure
The phase changes of gypsum were considered to be sufficiently understood for a long time. However, due to the increasing importance of gypsum recalcination (connected with the planned closure of thermal power plants resulting in a lack of FGD gypsum ...
J. Krejsová, Radomír Kužel, M. Keppert, L. Scheinherrová, A. Vimmrová   +4 more
semanticscholar   +1 more source

Impact of Wetting–Drying Cycles on the Mechanical Properties and Microstructure of Wood Waste–Gypsum Composites [PDF]

, 2019
Large amounts of wood waste are generated each year in the world. In an attempt to identify a good recovery option for those residues, wood waste from construction and demolition works were used as raw materials in gypsum plasters.
Morales Conde, María Jesús, Pedreño-Rojas, M. Alejandro, Pérez Gálvez, Filomena, Rubio de Hita, Paloma   +3 more
core   +1 more source

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

Journal 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, Nihad Bahaalden Salih, Farouk Abdullah Rasheed   +2 more
doaj   +1 more source

Mechanism of water extraction from gypsum rock by desert colonizing microorganisms

Proceedings of the National Academy of Sciences of the United States of America, 2020
Significance This research provides an in-depth analysis of how microorganisms are able to survive in the world’s driest non-polar place, the Atacama Desert, Chile.
Wei Huang, Emine Ertekin, Tai-Kang Wang, Luz Cruz, Micah Dailey, J. DiRuggiero, D. Kisailus   +6 more
semanticscholar   +1 more source

Lightweight recycled gypsum with residues of expanded polystyrene and cellulose fiber to improve thermal properties of gypsum

, 2021
In this study, different proportions of gypsum composite reinforced with recycled cellulose fibers and expanded polystyrene were produced to study the properties of thermal conductivity, density, and flexural strength to be used as sealing plates to ...
K.A. De Oliveira, C. Oliveira, J. C. Molina   +2 more
semanticscholar   +1 more source

Bio-Fibres as a Reinforcement of Gypsum Composites

Materials, 2021
Three series of tests performed on fibre-reinforced gypsum composites are described herein. Sheep wool fibres and hemp fibres were used as reinforcement.
A. Fantilli, D. Jóźwiak-Niedźwiedzka, P. Denis   +2 more
semanticscholar   +1 more source

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

Open 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, Miguel Castro-Diaz, Paul Needham, Sergio Cavalaro, Tatiana Lovato, Bill Parker   +5 more
doaj   +1 more source

Improvement of Performances of the Gypsum-Cement Fiber Reinforced Composite (GCFRC)

Materials, 2020
The novelty of this paper lies in the identification of the scientific patterns of the influence of thermal power plant waste (TPPW) on the hydration mechanism and the structure of the gypsum-cement binder (GCB).
N. Chernysheva, V. Lesovik, R. Fediuk, N. Vatin   +3 more
semanticscholar   +1 more source