This paper identified carbonation products in the slag-rich cementitious systems upon three different exposure conditions, namely, long term field, indoor natural exposure, and accelerated testing. Overall, mineralogy of was found to be fundamentally similar under environments. In fully carbonated areas, no monosulfate calcium hydroxide observed, carbonate, hydrotalcite-like phase Ca–Al AFm pha...

This paper reports the carbonation characteristics of a cement-slag system exposed to accelerated testing, and its improved resistance with increasing MgO content in blast furnace slag, which hydrotalcite-like phase plays key role. Our research showed that started carbonate upon contacting ions bound more than 15 wt% CO2−3 mildly carbonated transition areas. value was positively associated magn...

The need to improve the understanding of properties cement-based materials calls for development tools visualizing and quantifying chemical reactions flows fluids within them. In this paper, we report results an experimental study where a sample fractured cement-paste was subjected injection (krypton, CO2 water) imaged simultaneously by X-ray computed tomography (CT). Initial porosity estimated...

The calcium carbonate whisker (CW) and basalt fiber are gaining popularity due to its enhanced mechanical properties in composites. Also, the short long fibers provide bridging role resistance against cracking from micro- macro-scale, respectively. usage of hybrid along with addition CW cement-based composites is still a research gap. In this work, experimental behavior reinforced mortar consid...

OBJECTIVE To compare biodegradable magnesium phosphate cement (Mg-cement), calcium phosphate cement (Ca-cement), and no cement on bone repair, biocompatibility, and bone adhesive characteristics in vivo in horses. ANIMALS 8 clinically normal adult horses. PROCEDURES Triangular fragments (1-cm-long arms) were created by Y-shaped osteotomy of the second and fourth metatarsal bones (MTII and M...

Rare earth element and yttrium (REY) systematics of authigenic seep carbonates can provide insights into the physico-chemical characteristics systems allow discrimination carbonate precipitation under seawater- or porewater-dominated fluid regimes. However, care must be taken when interpreting their REY systematics, since comprise a mixture detrital silicates cement. Since concentrations trace ...

The cement gland is a simple secretory organ that marks the anterior-most dorsal ectoderm in Xenopus embryos. In this study, we examine the timing of cement gland induction and the cell interactions that contribute to cement gland formation. Firstly, we show that the outer ectodermal layer, from which the cement gland arises, becomes specified as cement gland by mid-gastrula. Curiously, at earl...