Results 81 to 90 of about 20,433,359 (254)

Traditional and Advanced Curing Strategies for Concrete Materials: A Systematic Review of Mechanical Performance, Sustainability, and Future Directions

open access: yesApplied Sciences
Curing plays a fundamental role in determining the mechanical performance, durability, and sustainability of concrete structures. Traditional curing practices, such as water and air curing, are widely used but often limited by long durations, high water ...
Robert Haigh, Omid Ameri Sianaki
doaj   +1 more source

Acetoacetate based thermosets prepared by dual-Michael addition reactions [PDF]

open access: yes, 2019
A novel set of dual-curable multiacetoacetate-multiacrylate-divinyl sulfone ternary materials with versatile and manipulable properties are presented.
Fernández Francos, Xavier   +3 more
core   +2 more sources

3D printing of cement composites [PDF]

open access: yes, 2010
The aims of this study were to investigate the feasibility of generating 3D structures directly in rapid-hardening Portland cement (RHPC) using 3D Printing (3DP) technology.
E Farahi   +4 more
core   +1 more source

Spot-weld bonding on the Blackhawk helicopter [PDF]

open access: yes, 1972
The Sikorsky S-67 Blackhawk attack helicopter utilizes spot-weld bonding for stringer to skin attachment on more than 5 per cent of its surface area. It is the first American aircraft to utilize spot weld bonding, although the process has been used for ...
Salking, M. J.
core   +1 more source

Design and Validation of a Dielectric Method-Based Composite Material Curing Monitoring Platform

open access: yesSensors
Monitoring the curing process is crucial for guiding and optimizing the curing procedures of composite material repair patches. Traditional embedded online monitoring methods are limited in their ability to track the curing process of these patches. This
Wenfeng Yang   +7 more
doaj   +1 more source

Mechanical performance of glass-based geopolymer matrix composites reinforced with cellulose fibers [PDF]

open access: yes, 2018
Glass-based geopolymers, incorporating fly ash and borosilicate glass, were processed in conditions of high alkalinity (NaOH 10-13 M). Different formulations (fly ash and borosilicate in mixtures of 70-30 wt% and 30-70 wt%, respectively) and physical ...
Bernardo, Enrico   +2 more
core   +2 more sources

Understanding the post-curing behaviors of polymethylacrylimide: Curing kinetics and molecular mobility

open access: yesPolymer Testing
In this study, the post-curing kinetic, molecular mobility and mechanical behavior of polymethylacrylimide (PMI), synthesized from methacrylic acid and methacrylonitrile, were systematically investigated.
Yuan Chen   +7 more
doaj   +1 more source

Thermo-mechanical properties of commercially available epoxy resins for structural applications [PDF]

open access: yes, 2015
Externally bonded (EB) or Near-Surface-Mounted (NSM) composite reinforcements are often bonded to a cementitious substrate by means of commercially available epoxies.
Czaderski, Christoph   +3 more
core  

Study on the Cure Kinetics of Epoxy Resin Prepreg in Fiber Metal Laminates

open access: yesMATEC Web of Conferences, 2017
To better analysis the curing behavior of a new kind of high temperature curing epoxy resin prepreg in fiber metal laminates (FMLs), dynamic differential scanning calorimetry (DSC) method was used to make the research on the curing process of the prepreg.
Wu Xintong   +3 more
doaj   +1 more source

Hybrid Manufacturing: Integrating Direct Write and Stereolithography [PDF]

open access: yes, 2005
A commercial stereolithography (SL) machine was modified to integrate fluid dispensing or direct-write (DW) technology with SL in an integrated manufacturing environment for automated and efficient hybrid manufacturing of complex electrical devices ...
Chavez, Bart   +8 more
core  

Home - About - Disclaimer - Privacy