Reinforced high-strength concrete can crack due to stresses that develop during the hardening process. However, this has been found to be surprisingly less quick than previously thought. Due to Dutch research, extra steps during the hardening process can be omitted. This will result in cheaper concrete.
Maya Sule from Delft University of Technology tested specimens of high strength concrete (concrete with little water) in a temperature stress testing machine (TSTM). Such tests indicate the
Technical Insights materials and chemicals research service: Advanced materials technology
Advanced materials look set to revolutionize numerous applications in the 21st century. Scientists and engineers are undertaking extensive research activities in their quest to develop sophisticated new materials that are more durable, environmentally friendly, and energy efficient.
“Advanced materials and chemicals are the enabling building blocks for future devices and systems,
The development of a new generation of membranes based on conducting polymers has been the subject of a recent line of research in the Department of New Materials at CIDETEC, in association with the LEIA Technological Centre.
This involves a field of work wherein the excellent advantages presented by electro-dialysis conventional membranes (continuous separation, low energy consumption, ease of combination with other separation processes, absence of additives) are combined with other, highl
An Ohio State University engineer and his colleagues have discovered something new about a 50-year-old type of fiberglass: it may be more than one and a half times stronger than previously thought.
That conclusion, and the techniques engineers used to reach it, could help expand applications for glass fibers.
Though the glass fiber industry is currently suffering the same economic woes as many other businesses, the time is right to lay the groundwork for future applications, said P
Chains of molecules known as conducting polymers are versatile materials that can work like electronic circuits. Potential uses include flat panel displays, solar panels, sensing devices and transistors, to name just a few. Their invention won three scientists the Nobel Prize in chemistry.
But to make useful devices from conducting polymers requires a degree of chemical wizardry that often proves elusive. University of Illinois at Chicago chemistry professor Luke Hanley has found a new and
New materials will have applications in electronic and optoelectronic devices, electrocatalysis, electroanalysis and sensors
Scientists at the University of California, Riverside have synthesized a large family of semiconducting porous materials that have an unprecedented and diverse chemical composition.
The new materials show several different properties such as photoluminescence, ion exchange, and gas sorption. They also have a large surface area and uniform pore sizes. I
Jefferson Lab’s Free-Electron Laser used to explore the fundamental science of how and why nanotubes form, paying close attention to the atomic and molecular details
Scientists and technologists of all stripes are working intensively to explore the possibilities of an extremely strong and versatile cylinder so tiny that millions — which in bunches look like an ebony snowflake — could fit easily on the tip of a pin. The objects in question are known as carbon nanotubes, first discov
Physicists from the St. Petersburg State Institute of Technology have invented an unusual method for improving concrete. The researchers believe that the concrete structure will become more uniform, and concrete products will obtain unprecedented durability and water-resistance if, while hardening, concrete is exposed to the influence of electromagnetic field of a strictly determined frequency.
The actual process is as follows: the concrete blocks while they are still in the mould ar
Technique could help bring efficiency of biology to man-made materials
A Princeton chemist has developed a general mathematical system for designing materials that perform two functions at once, even when the desired properties sometimes conflict with each other.
Salvatore Torquato and colleagues used computers to calculate the optimum structure for any material that is a composite of two substances with differing properties. The achievement is the first simple example of a
POLYMAT, the University of the Basque Country’s Institute of Polymer Materials, is helping to solve the problem of contamination of polymers obtained through polymerisation processes involving emulsions. With European funding obtained four years ago, the project on removing monomer residues from polymers was undertaken. POLYMAT has been working in this field with the collaboration of three other universities (from Germany, Greece and Switzerland) as well as three foreign companies.