Results 41 to 50 of about 98,572 (249)

In Situ X‐Ray Tomography and Acoustic Emission Monitoring of Damage Evolution in C/C‐SiC Composites Fabricated by Liquid Silicon Infiltration

open access: yesAdvanced Science, EarlyView.
This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen   +7 more
wiley   +1 more source

Effect of cement asphalt mortar damage location on dynamic behavior of high-speed track

open access: yesAdvances in Mechanical Engineering, 2018
One of the problems with high-speed tracks in service is the damage of their cement asphalt mortar layer. The development of cement asphalt mortar damage can lead to gradually failure of the slab supporting.
Jian Han   +3 more
doaj   +1 more source

Effect of surfactants on pressure-sensitivity of CNT filled cement mortar composites

open access: yesFrontiers in Materials, 2014
Sodium dodecyl sulfate (SDS) and sodium dodecylbenzene sulfonate (NaDDBS) were used as surfactants to disperse multi-walled carbon nanotubes (MWNT) in cement mortar and fabricate pressure-sensitive carbon nanotubes filled cement mortar composites.
Baoguo eHan, Xun eYu
doaj   +1 more source

Engineering properties of bio-inspired cement mortar containing seashell powder [PDF]

open access: yes, 2014
Cement mortar is a semi liquid formed by a composite of cement, sand and water. Generally, cement mortar is used as a medium for bricks laying in construction.
Md. Tahir, Mahmood   +2 more
core  

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

Study the Effects of Nano-Materials Addition on Some Mechanical Properties of Cement Mortar [PDF]

open access: yesEngineering and Technology Journal, 2017
This research involves nano-materials addition and interaction with cement mortar behavior for many mortar samples under variable curing time with constant water to cement ratio (W/C = 0.5).
F.A. Rasin, L.K. Abbas, M.J. Kadhim
doaj   +1 more source

Mortar and concrete based on calcium sulphate binders [PDF]

open access: yes, 2006
In this study both hemi-hydrate and anhydrite are tested as calcium sulphate binders for structural mortar and concrete. The advantage of using calcium sulphates instead of cement as a binder is the fact that the production of calcium sulphate is more ...
Bakker, J.J.F., Brouwers, H.J.H.
core   +1 more source

Efeito da pré-molhagem do agregado nas propriedades das argamassas com agregado reciclado deconcreto e agregado leve [PDF]

open access: yes, 2019
This paper examines the suitability of partially replacing natural aggregate, sand, (NA) with recycled concrete aggregate (RCA) or lightweight aggregate (LWA) in mortars, under the hypothesis that pre-wetting aggregates would produce improvement in ...
Aponte Hernández, Diego Fernando   +3 more
core   +4 more sources

Emerging research directions in nanoparticle‐based foam control for bioprocessing: a bibliometric approach

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Overfoaming remains a critical challenge in industrial bioprocesses, compromising mass transfer, operational stability, and downstream efficiency in bioreactors and wastewater treatment systems. This study provides a bibliometric and scientometric assessment of nanoparticle‐enabled foam control to map technological trends and identify research
Antonio Átila Menezes Ferreira   +6 more
wiley   +1 more source

Mechanical Properties of Acrylic Mortar

open access: yesJournal of Engineering and Sustainable Development, 2011
This paper focus on the effect of the acrylic polymer on the performance of cement mortar and cement-lime mortar, through studying; the water –reduction effect of the acrylic in the mortar, and the influence of the acrylic on the density, compressive ...
Mohammed Mosleh Salman   +2 more
doaj  

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