There are several tests for cement that can be carried out at the construction site such as color test, rubbing test, floating test, etc. These tests...
The compressive strength test is one of the most important tests performed on concrete. This test gives a fair idea about the quality of the concrete...
Image that products could be strengthened with the same living materials that provide nutrients to strengthen trees. Professor Qiming Wang's research lab is one of the first to infuse 3-D printer ink with living material. The material has potential for greater strength, to be flexible and self-heal.
Working space is the additional space provided between the edge of the excavation and the footing for the ease of labor movement for fixing, removing...
There are several tests for cement that can be carried out at the construction site such as color test, rubbing test, floating test, etc. These tests...
There are several tests for cement that can be carried out at the construction site such as color test, rubbing test, floating test, etc. These tests...
Various software packages can be used to evaluate products and predict failure; however, these packages are extremely computationally intensive and take a significant amount of time to produce a solution. Quicker solutions mean less accurate results.
Researchers captured and comparted hi-res images of ribosome structures from sensitive and resistant bacteria and report that a water molecule needed for antibiotic binding was not present in the ribosomes from the drug-resistant bugs.
Researchers have succeeded in 'fine tuning' a new thermoplastic biomaterial to enable both the rate at which it degrades in the body and its mechanical properties to be controlled independently.
New research addresses some of the technical issues that still need to be solved for 3D printed concrete to be strong enough for use in more free-form structures. Researchers found lobster-inspired printing patterns can make 3DCP stronger and help direct the strength where it's needed. And combining the patterns with a concrete mix enhanced with steel fibers can deliver a material that's stronger than traditionally-made concrete.
Computational materials science experts have enhanced an algorithm that borrows its approach from the nesting habits of cuckoo birds, reducing the search time for new high-tech alloys from weeks to mere seconds.
By combining large amounts of low-fidelity data with smaller quantities of high-fidelity data, nanoengineers have developed a new machine learning method to predict the properties of materials with more accuracy than existing models. Crucially, their approach is also the first to predict the properties of disordered materials -- those with atomic sites that can be occupied by more than one element, or can be vacant.
Employing newly developed electron microscopy techniques, researchers have, for the first time, measured the spectra of phonons - quantum mechanical vibrations in a lattice - at individual crystalline faults, and they discovered the propagation of phonons near the flaws.
Scientists have come up with a new technique to evaluate the mechanical forces generated in polymer crystallization as they cool down from their molten state. They used small, fluorescent molecules to visualize the crystallization process, guiding manufacturers in their goals to optimize polymer materials.
Engineers have created a new shape-changing or 'morphing' 3D printing nozzle, which offers researchers new means for 3D printing 'fiber-filled composites.'
Inspired by the color-changing skin of cuttlefish, octopuses and squids, engineers have created a 3D-printed smart gel that changes shape when exposed to light, becomes 'artificial muscle' and may lead to new military camouflage, soft robotics and flexible displays. The engineers also developed a 3D-printed stretchy material that can reveal colors when light changes.
As catalysts for fuel cells, batteries and processes for carbon dioxide reduction, alloy nanoparticles that are made up of five or more elements are shown to be more stable and durable than single-element nanoparticles.
A construction project involves several contractors and service providers, which results in inevitable complexities throughout the project. With that...