Results 31 to 40 of about 11,522 (217)

The use of basalt scoria as a geopolymer cement to increase soil bearing capacity

Journal of Degraded and Mining Lands Management, 2023
One method that can be used to improve soil properties is the addition of geopolymer cement to the soil to become more stable. This study aimed to determine the effect of geopolymer cement on soil stability.
Saparudin Saparudin, Sofia W Alisjahbana, Rajiman Rajiman, Ilyas Sadad, Muhammad Amin, Yusup Hendronursito   +5 more
doaj   +1 more source

Treatments on Polypropylene Macro Synthetic Fibers for Improving Adhesion in Structural Concrete Reinforcement: A Systematic Review

Journal of Applied Polymer Science, EarlyView.
Surface functionalization of polypropylene macrofibers to enhance fiber‐matrix interfacial bonding. ABSTRACT Concrete is the most used higher compressive strength‐building material, albeit brittle to tensile, and flexural loads. Polypropylene (PP) synthetic polymeric macrofibres are commonly employed as reinforcement material to prevent this situation ...
Elena Saccani, Ylenia Ruberto, Daniel Milanese, Corrado Sciancalepore   +3 more
wiley   +1 more source

Effect of compressive creep in load transfer components on relaxation behavior of FRP cable extrusion anchorages

Case Studies in Construction Materials
This study investigates 1000-hour and million-hour creep behaviors in load transfer components (LTCs) and evaluates the impact of LTC’s compression creep on fiber-reinforced polymer (FRP) cable extrusion-anchorage relaxation.
Jingyang Zhou, Haorui Xiang, Xin Wang, Leizhi Zhang, Xinquan Chang, Qiwei Xu, Zhishen Wu   +6 more
doaj   +1 more source

Enhanced Weathering Using Basalt Rock Powder: Carbon Sequestration, Co-benefits and Risks in a Mesocosm Study With Solanum tuberosum

Frontiers in Climate, 2022
Enhanced weathering (EW) of silicate rocks can remove CO2 from the atmosphere, while potentially delivering co-benefits for agriculture (e.g., reduced nitrogen losses, increased yields).
Arthur Vienne, Silvia Poblador, Miguel Portillo-Estrada, Jens Hartmann, Samuel Ijiehon, Peter Wade, Sara Vicca   +6 more
doaj   +1 more source

Tracking the Dynamics of human Colonisation and Adaptation in Central Vanuatu: Preliminary Results From Excavation and Survey at Pangpang, East Efate

Archaeology in Oceania, EarlyView.
ABSTRACT In October 2022 an extensive archaeological landscape was identified by staff of the Vanuatu Cultural Centre at Pangpang on the east coast of Efate Island in central Vanuatu. It included midden deposits on the banks of the Pangpang River near the sea at Forari Bay where Lapita and Early Erueti‐style pottery sherds were recovered.
Stuart Bedford, Iarawai Phillip, Lucas Sarvanu, Edson Willie, Stuart Hawkins, Robert Henderson, Frédérique Valentin, Siri Seoule, Emily Nutman, Phillip Parton   +9 more
wiley   +1 more source

Eruption age of the Sverrefjellet volcano, Spitsbergen Island, Norway [PDF]

Polar Research, 2012
Sverrefjellet is a Pleistocene-age basaltic volcanic construct on north-western Spitsbergen Island (Svalbard Archipelago, Norway). Published ages for the Sverrefjellet eruption range between 6000 years and ca. 1 million years before present.
Allan H. Treiman
doaj   +1 more source

Archaeological Damage Assessment in Conflict Zones: Integrating Satellite Imagery and Ground Surveys in Daraa, Syria

Archaeological Prospection, EarlyView.
ABSTRACT Satellite remote sensing is among the most significant modern methodologies supporting field archaeology. In addition to its efficiency in identifying archaeological sites, remote sensing offers a safe and cost‐effective approach in conflict zones.
Amal Al Kassem, Kristen Hopper, Ismael M. Ibraheem, Andreas Maier, Mohammad Khair Nassrallah, Jürgen Richter   +5 more
wiley   +1 more source

Revisiting the synthesis of dimethyl carbonate from methanol and carbon dioxide

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The process for producing dimethyl carbonate (DMC) from carbon dioxide (CO2) and methanol is explored in this article. It provides an overview of the thermodynamics involved in DMC synthesis, discussing the challenges and potential solutions. The article highlights the reported use of catalysts and dehydrating agents to improve DMC yield and ...
Diego Alexander Santos Araque, Niloofar Mozaffari, Louis Fradette, Serge Kaliaguine   +3 more
wiley   +1 more source

Study of some Physical properties of basalt – clay mixes [PDF]

مجلة جامعة الانبار للعلوم الصرفة, 2012
Jordanian basalt was added to China clay on different mixes up to 60% by weight. Some of physical properties were studied. Mixes basalt showed a remarkable increase in density with increasing basalt addition.
Adil N . Ayyash
doaj   +1 more source

Effect of confining pressure on fracture characteristics and mineralogical behavior of tight sandstone specimens after hydraulic fracturing

Deep Underground Science and Engineering, EarlyView.
Hydraulic fracturing in tight sandstone and fracture propagation characteristics using backscattered electron‐scanning electron microscope (BSE‐SEM) images. Abstract This study focuses on hydraulic fracturing experiments conducted under triaxial conditions on tight sandstone specimens from Shivpuri district, Madhya Pradesh, India.
Pankaj Rawat, Narendra Kumar Samadhiya
wiley   +1 more source