13 H Nuclear magnetic resonance has been applied to cement pastes, and in particular calcium 14 silicate hydrate (C-S-H), for the characterisation of porosity and pore water interactions for 15 over three decades. However, there is now renewed interest in the method, given that it has 16 been shown to be non-invasive, non-destructive and fully quantitative. It is possible to make 17 measurement...

Portland cements are used to immobilize low-level radioactive wastes and have several advantages over other matrix materials. They are tolerant of wet wastes, are nonflammable and inert and have a well proved process technology. Moreover. they are reasonably durable in underground repositories and, of course, are compatible with concrete vaults, backfills, etc. The short-term immobilization pot...

The incidence of osteoporotic vertebral compression fractures (OVCFs) increases gradually with age, resulting in different degrees pain for patients, even possible neurological damage and deformity, which can seriously affect their quality life. Vertebral augmentation plays an important role the surgical treatment OVCFs. As most widely used bone cement material, polymethyl methacrylate (PMMA) o...

Stoichiometric dicalcium silicate, Ca2SiO4, displays a well-known polymorphism with temperature. When this phase is doped by a range of elements, belite, one of the main phases of cements, is generated. Here, we thoroughly study the aluminum doping of dicalcium silicate. This type of study is important for cement characterization and also from a basic point of view. Ca2Si(1-2x)Al(2x)O(4-x)□(x) ...

Zirconia (ZrO(2)) and barium sulfate (BaSO(4)) particles were introduced into a methyl methacrylate monomer (MMA) solution with polymethyl methacrylate (PMMA) beads during polymerization to develop the following novel bone cements: bone cements with unfunctionalized ZrO(2) micron particles, bone cements with unfunctionalized ZrO(2) nanoparticles, bone cements with ZrO(2) nanoparticles functiona...

Calcium phosphate cements (CPCs) with their biocompatibility, osteoconductivity and injectability plays an important role in bone defects treatment. Dual-setting cement is a promising approach to improve the physicochemical biological properties of CPCs which liquid phase contains dissolved monomers that polymerized during hardening process. In this study, series dual-setting were prepared by m...