Due to their remarkable mechanical properties, multiwall carbon nanotubes (MWCNTs) are considered by many researchers to be a highly promising filler and reinforcement agent for enhanced performance cementitious materials. Currently, however, achieving an effective dispersion of MWCNTs remains a major challenge in developing high performance nano-cementitious composites, since carbon nanotubes ...

Xinjiang is in northwest China and has abundant desert sand. Replacing natural sand with from deserts an urgent need could be used making polyethylene fiber−engineered cementitious composite (PE−ECC). The interfacial bonding properties of PE−ECC (DSPE−ECC) were made using the optimal mix proportion (30% content, 2% fiber volume) laboratory’s previous research results. Normal (NSPE−ECC) DSPE-ECC...

Maintenance of reinforced concrete (RC) structures has become a global issue due to the problems associated with corrosion steel reinforcement. Corrosion RC results in severe serviceability and strength issues, which turn necessitates major repair works. Though it is difficult eliminate risk structures, appropriate retrofitting procedures can be implemented restore lost strength. This paper pre...

To integrate irreconcilable material properties into a single component, a new class of engineered materials termed “surface composites” has been developed. In this engineered material, the second phase is spatially distributed in the near surface regions, such that the phase composition is linearly graded as a function of distance from the surface. Surface composites are different from existin...

This paper describes analytical methods that can be used to determine the deflections and stresses in highly compliant graphite-reinforced cementitious composites. It is demonstrated that the standard transform section method fails to provide accurate results when the elastic modulus ratio exceeds 20. So an alternate approach is formulated by using the rule of mixtures to determine a set of eff...