Results 61 to 70 of about 901,954 (313)

Promoting structural sustainable design through the influence of quality control assessments

open access: yesScientific Reports
In structural reliability assessments, the selection of suitable parameters for the definition of stochastic models of component properties—such as concrete compressive strength, steel yield strength or geometric dimensions—is a prime requirement ...
Til Lux   +5 more
doaj   +1 more source

Concrete manufacture with un-graded recycled aggregates

open access: yes, 2009
Purpose – The purpose of this paper is to investigate whether concrete that includes un-graded recycled aggregates can be manufactured to a comparable strength to concrete manufactured from virgin aggregates.
Graham, Sue   +2 more
core   +1 more source

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

open access: yesAdvanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari   +3 more
wiley   +1 more source

Concrete admixtures - sustainable concrete

open access: yesActa Polytechnica CTU Proceedings, 2022
Durability of concrete, an important part of the sustainability theme, was, is, and will be one of the main topics for large infrastructure projects like the Gotthard base tunnel. For such important structures a service life of more than 80 years is expected. The prevailing underground conditions like water ingress, aggressive waters etc.
openaire   +2 more sources

Compatibility of Methacrylate Based Resins Controls Interfacial Failure and Toughness in 3D‐Printed Multimaterial Composites

open access: yesAdvanced Engineering Materials, EarlyView.
This work shows that the mechanical performance of multimaterial digital light processing (DLP) printed thermoset composites is governed by resin compatibility and interfacial design rather than spatial patterning alone. Brittle and ductile resin combinations produced premature interfacial failure, while graded interfaces and mechanically compatible ...
Ahmed M. H. Ibrahim   +3 more
wiley   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

open access: yesAdvanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner   +14 more
wiley   +1 more source

Bacterial crack repair to concrete

open access: yes, 2015
This study has demonstrated the potential S. pasteurii and consequently MICP holds in improving the integrity of finish to concrete, without the use of chemical based sealants.
Richardson, Alan, Pasley, Jack
core  

GFRP reinforced concrete : environmental and movement characteristics [PDF]

open access: yes, 2004
For the last few decades, research has been conducted in order to come over the problem of corrosion in steel reinforced concrete. Consequently, methods such as cathodic protection, epoxy coatings, concrete additives, etc., have been tried ...
Al-Salem, Sultan, Sultan Al-salem
core  

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

open access: yesAdvanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim   +21 more
wiley   +1 more source

Analysis of Construction Process and Configuration Automatic Monitoring for the Spoke-Type Single-Layer Cable Net Structure

open access: yesBuildings
As a full tension structural system, the spoke-type single-layer cable net structure has a light graceful shape and superior mechanical properties. During construction, the structure will gradually be tensioned from the flexible unstressed state to the ...
Fei Wang   +6 more
doaj   +1 more source

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