6 Result(s)
-
Article
Open AccessOptimising confocal Raman microscopy for spectral map** of cement-based materials
Raman spectroscopy combined with confocal imaging, i.e. confocal Raman microscopy (CRM) is a relatively new technique with huge potential for high-resolution chemical map** of phase composition and spatial d...
-
Article
Open AccessImproving bond strength and mass transport properties of spacer-concrete interface with textured spacers
Spacers are important devices used in all concrete structures to support reinforcing steel and achieve the required cover. However, spacers induce a weak, porous and microcracked interface that facilitates ing...
-
Article
Open AccessCombined effects of vertical spacers and segregation on mass transport properties of reinforced concrete
All concrete structures contain reinforcement spacers, and deep sections can be affected by bleeding and segregation without displaying visible indications during casting. However, their effects on mass transp...
-
Article
Open AccessMicroscopy techniques for determining water–cement (w/c) ratio in hardened concrete: a round-robin assessment
Water to cement (w/c) ratio is usually the most important parameter specified in concrete design and is sometimes the subject of dispute when a shortfall in concrete strength or durability is an issue. However...
-
Article
Step-by-step rotation of a molecule-gear mounted on an atomic-scale axis
Designing and building molecular machines at the nanometre scale is a conceptual and synthetic challenge. Rotation of a single molecule has been observed but controlling the direction of the rotation has so fa...
-
Article
Probing the Limits of Silicon-Based Nanoelectronics
The ability to reduce device features to increasingly smaller dimensions offers the potential for remarkable circuit performance and low power consumption. CMOS (Complementary Metal-Oxide-Semiconductor) device...
