Xiangming Zhou

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A MADS-box gene (PdPI) was isolated from a cDNA library constructed from male flower buds of Populus deltoides Bartr. ex Marsh. According to an analysis of genomic DNA structure and putative protein structure, and a phylogenetic study, PdPI is an ortholog of the Arabidopsis PI gene. Relative-quantitative real-time polymerase chain reaction analysis showed(More)
Carbon nanotubes (CNTs) have excellent mechanical properties and can be used to reinforce cement-based materials. On the other hand, the reaction product of carbonation with hydroxides in hydrated cement paste can reduce the porosity of cement-based materials. In this study, a novel method to improve the strength of cement paste was developed through a(More)
In recent years, the construction industry has seen a significant rise in the use of natural fibers, for producing building materials. Research has shown that treated hemp fiberreinforced concrete (THFRC) can provide a low-cost building material for residential and low-rise buildings, while achieving sustainable construction and meeting future environmental(More)
A new experimental method by utilizing elliptical rings to replace circular rings recommended by ASTM and AASHTO was explored for assessing cracking potential of concrete and other cement-based materials under restrained condition. A series of thin and thick elliptical concrete rings were tested alongside circular ones until cracking. Cracking age,(More)
cDNA library constructed from male flower buds of Populus deltoides Bartr. ex Marsh. According to an analysis of genomic DNA structure and putative protein structure, and a phylogenetic study, PdPI is an ortholog of the Arabidopsis PI gene. Relative-quantitative real-time polymerase chain reaction analysis showed that PdPI has a broader expression pattern(More)
In this study, a comprehensive approach has been adopted to examine in detail the effect of various hook geometries on bond-slip characteristics. Extensive single fibre pull-out tests on ultra-high performance matrix with three different W/B ratios and embedded lengths have been carried out. Test results showed that the mechanical deformation of fibre hook(More)
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