Results 61 to 70 of about 62,299 (282)

Current knowledge of external sulfate attack [PDF]

open access: yes, 2015
This paper offers an update of the current understanding of sulfate attack, with emphasis on the sulfates present in an external water source percolating through, and potentially reacting with, the cement matrix.
ASTM   +26 more
core   +1 more source

Stable Protein‐Based G‐Quadruplex‐Derived Supramolecular Bioinks as Tunable ECM‐Mimetic Constructs Assembled by Combining Non‐Covalent and Covalent Strategies

open access: yesAdvanced Materials, EarlyView.
Harnessing the synergistic interplay of supramolecular self‐assembly, under macromolecular crowding conditions, and enzymatic‐mediated covalent crosslinking toward a stable protein‐based G‐quadruplex‐derived supramolecular bioink. This bioinspired strategy enables the biofabrication of complex and tunable ECM‐mimetic constructs, providing a platform ...
Vera Sousa   +6 more
wiley   +1 more source

Some Durability Test of No-Fine Concrete

open access: yesJournal of Engineering, 2016
In this study, two types of mixes were adopted by using two grading of coarse aggregate. The practical side of this study was to produce no-fine aggregate concrete by using crushed clay brick aggregates.
Shakir Ahmed Salih, Prof. Dr.   +1 more
doaj  

Effect of sulfur aggregates on mechanical resistance and durability for SFRHPC with the addition of slag

open access: yesMATEC Web of Conferences, 2014
The transformation of sulfides present in the aggregate to sulfates causes internal sulfate attack (ISA) by formation of secondary ettringite in the hardened concrete.
Boutiba Aldjia   +3 more
doaj   +1 more source

Damage modelling in concrete subject to sulfate attack [PDF]

open access: yes, 2014
In this paper, we consider the mechanical effect of the sulfate attack on concrete. The durability analysis of concrete structures in contact to external sulfate solutions requires the definition of a proper diffusion-reaction model, for the ...
C. Comi, N. Cefis
core   +2 more sources

Multifunctional Bio‐Based Packaging for Perishable Foods: Structural Design, Scalable Fabrication, and Versatile Applications

open access: yesAdvanced Materials, EarlyView.
An overview of design principles and scalable fabrication strategies for multifunctional bio‐based packaging. Radiative cooling films, modified‐atmosphere films/membranes, active antimicrobial/antioxidant platforms, intelligent optical/electrochemical labels, and superhydrophobic surfaces are co‐engineered from material chemistry to mesoscale structure
Lei Zhang   +6 more
wiley   +1 more source

Sulfate attack and the role of internal carbonate on the formation of thaumasite

open access: yes, 2007
The sulfate attack is known to influence the durability of concrete. In general, significant damage due to sulfate interaction results in the structural breakdown of the concrete structure. However, the precipitation of thaumasite due to sulfate concentration, leaching and the role of internal carbonate in case of limestone filler in cement is still ...
openaire   +1 more source

Elephant‐Skin‐Inspired Porous Cementitious Tiles with Programmable Crack Networks for Passive Cooling

open access: yesAdvanced Materials, EarlyView.
Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang   +5 more
wiley   +1 more source

The manage strategy in a morbid obesity patient with bronchospasm during general anesthesia

open access: yesJournal of Medical Sciences, 2019
During general anesthesia, anesthesiologists encounter problems including difficult airway intubation, high respiratory airway pressure, fluctuation of blood pressure, and poor oxygen saturation, especially in obese patients.
Wei-Lin Lin   +4 more
doaj   +1 more source

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