Results 101 to 110 of about 89,639 (290)

Influence of MWCNT/surfactant dispersions on the mechanical properties of Portland cement pastes [PDF]

open access: yes, 2017
This work studies the reinforcing effect of Multi Walled Carbon Nanotubes (MWCNT) on cement pastes. A 0.35% solid concentration of MWCNT in powder was dispersed in deionized water with sodium dodecyl sulfate (cationic surfactant), cetylpyridinium ...
B Rodríguez   +7 more
core   +1 more source

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

open access: yesDeep 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

Influence of finely ground limestone on cement hydration [PDF]

open access: yes, 1999
International audienceSome work has been carried out on the effect of calcium carbonate on cement paste, but there is no general agreement on the relative effects of different amounts of calcium carbonate on cement paste properties.
Guilhot, Bernard   +2 more
core   +4 more sources

Temperature‐dependent shear behavior and constitutive model of the rock–concrete interface

open access: yesDeep Underground Science and Engineering, EarlyView.
Shear tests were conducted to investigate the temperature‐dependent shear behavior of the rock–concrete interface, highlighting the interaction between the surrounding rock and the lining during tunnel fires. Under experimental conditions, concrete exhibited greater temperature sensitivity than rock, with the shear fracture surface transitioning from ...
Hongbin Chen   +6 more
wiley   +1 more source

Potential of enhancing the joint of adjacent cement composites by incorporating edge-oxidized graphene oxide

open access: yesCase Studies in Construction Materials
This study aims to investigate the effect of adding Edge-Oxidized Graphene Oxide (EOGO) to cement paste to enhance its bonding to different cement materials (cement mortar in this study).
Mohammad Khawaji, Mohammed Alamri
doaj   +1 more source

Self-Shrinkage Behaviors of Waste Paper Fiber Reinforced Cement Paste considering Its Self-Curing Effect at Early-Ages

open access: yesInternational Journal of Polymer Science, 2016
The aim of this paper was to study how the early-age self-shrinkage behavior of cement paste is affected by the addition of the waste paper fibers under sealed conditions.
Zhengwu Jiang   +3 more
doaj   +1 more source

Effect of nanofibrillar cellulose on the cement paste setting kinetics [PDF]

open access: yesНанотехнологии в строительстве
Introduction. The study addresses the effect of nanofibrillar cellulose (NFC) on the setting process of cement paste during the first hours of gauging. A brief justification of the research topic relevance is given.
Yury V. Pukharenko   +2 more
doaj   +1 more source

Stress Redistribution Mechanisms and Subsidence Control of Fluidized Gangue Backfilling in Underground Coal Mining: Integrated Experimental and Numerical Investigation

open access: yesEnergy Science &Engineering, EarlyView.
Fluidized gangue backfilling controls mining subsidence through stress redistribution in composite backfill‐pillar systems, reducing surface settlement and stress concentrations. Multi‐scale experimental and numerical analysis provides quantitative design parameters for optimizing ground control in sustainable underground coal mining operations ...
Weilong Zhang   +11 more
wiley   +1 more source

Clinical and research applications of synthetic bone substitutes in equine veterinary medicine: A systematic review

open access: yesEquine Veterinary Journal, EarlyView.
Abstract Background Bone grafting in equine medicine offers a promising contribution to treating orthopaedic developmental diseases and chondral, osteochondral and segmental bone defects. Among grafts, synthetic bone substitutes—alloplastics—show favourable biological properties addressing numerous limitations presented by autografts, xenografts and ...
Katarzyna Skierbiszewska   +6 more
wiley   +1 more source

Queer configurations: The female divine, regional identity, and Queer‐religious belonging in South India

open access: yesFeminist Anthropology, EarlyView.
Abstract This article explores how queerness and religion intersect in a unique enactment of Bathukamma, a flower festival honoring the female divine in Hyderabad, the capital of the South Indian state of Telangana. Drawing on theories of figuration, I analyze how local queer organizations celebrate the festival in a way that engages two distinctive ...
Stefan Binder
wiley   +1 more source

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