Results 211 to 220 of about 36,002 (259)

The hydrated calcium silicates

Eos, Transactions American Geophysical Union, 1937
The hydrated‐calcium silicates are of particular geological interest as typical minerals formed by hydrothermal reactions at contact‐zones of different mineral species. They are also of technical significance as compounds which may be formed in the steam‐treatment of Portland cement and pozzolanic materials and in the manufacture of sand‐lime brick. To
openaire   +1 more source

The Osteoinductivity of Silicate-Substituted Calcium Phosphate

Journal of Bone and Joint Surgery, 2011
The osteoinductivity of silicate-substituted calcium phosphate and stoichiometric calcium phosphate was investigated with use of ectopic implantation. Implants with a macroporosity of 80% and a strut porosity of 30% were inserted into sites located in the left and right paraspinal muscles of six female sheep.After twelve weeks in vivo, a longitudinal ...
Melanie J, Coathup, Sorousheh, Samizadeh, Yvette S, Fang, Thomas, Buckland, Karin A, Hing, Gordon W, Blunn   +5 more
openaire   +2 more sources

Aggregation of Calcium Silicate Hydrate Nanoplatelets

Langmuir, 2016
We study the aggregation of calcium silicate hydrate nanoplatelets on a surface by means of Monte Carlo and molecular dynamics simulations at thermodynamic equilibrium. Calcium silicate hydrate (C-S-H) is the main component formed in cement and is responsible for the strength of the material.
Delhorme, Maxime, Labbez, Christophe, Turesson, Martin, Lesniewska, Eric, Woodward, Cliff, Jönsson, Bo   +5 more
openaire   +2 more sources

Strontium binding by calcium silicate hydrates

Journal of Colloid and Interface Science, 2006
In the present study the binding of strontium with pure calcium silicate hydrates (C-S-H) has been investigated using batch-type experiments. Synthetic C-S-H phases with varying CaO:SiO(2) (C:S) mol ratios, relevant to non-degraded and degraded hardened cement paste, were prepared in the absence of alkalis (Na(I), K(I)) and in an alkali-rich artificial
Tits, J., Wieland, E., Müller, C.J., Landesman, Catherine, Bradbury, M.H.   +4 more
openaire   +6 more sources

Nanostructure of Calcium Silicate Hydrates in Cements

Physical Review Letters, 2010
Calcium silicate hydrate (CSH) is the major volume phase in the matrix of Portland cement concrete. Total x-ray scattering measurements with synchrotron x rays on synthetic CSH(I) shows nanocrystalline ordering with a particle diameter of 3.5(5) nm, similar to a size-broadened 1.1 nm tobermorite crystal structure.
Skinner, L. B., Chae, S. R., Benmore, C. J., Wenk, H. R., Monteiro, P. J. M.   +4 more
openaire   +3 more sources

Calcium Silicate Bricks

Structural Survey, 1994
Briefly reviews the history of the calcium silicate brick and examines the manufacturing process involved. Details various qualities of the bricks, including durability, precision, thermal conductivity and some more general attributes, and advises on which conditions are most suited to the use of calcium silicate bricks.
openaire   +1 more source

Calcium Phosphate Silicate and Calcium Silicate Cements Suppressing Osteoclasts Activity Through Cytokine Regulation

Journal of Nanoscience and Nanotechnology, 2018
Calcium phosphate silicate bone cement (CPSC) can stimulate osteoblast proliferation and promote osteogenesis, but how CPSC supress osteoclast activity through cytokine regulation is not clear. In the current study, we synthesized CPSC by incorporating monocalcium phosphate (MCP) into calcium silicate cement (CSC), and analyzed the effects of CSC and ...
Wei, Yuan, Xin, He, Jingshu, Zhang, Yadong, Chen, Tianxing, Gong, Yue, Zhu   +5 more
openaire   +2 more sources

Sintering and sulfation of calcium silicate-calcium aluminate

Industrial & Engineering Chemistry Research, 1990
The effect of sintering on the reactivity of solids at high temperature was studied. The nature of the interaction was studied with calcium silicate-aluminate reacting with SO2 between 665 and 800 C. The kinetics of the sintering and sulfation processes were measured independently in terms of the common variables, temperature and specific surface area.
R. H. Borgwardt, Gary T. Rochelle
openaire   +1 more source

Synthesis of Calcium Phosphate and Calcium Silicate Composites

Russian Journal of Inorganic Chemistry, 2018
A one-step method for preparing composites based on calcium phosphates (CPs) and calcium silicates (CSs) with variable contents of the components is proposed. The combination of chemical analysis, X-ray powder diffraction, and simultaneous thermal analysis with mass-spectrometric detection (STA-MS) showed that the coprecipitation of salts from aqueous ...
A. P. Solonenko, A. I. Blesman, D. A. Polonyankin, V. A. Gorbunov   +3 more
openaire   +1 more source

Dimeric and oligomeric interactions between calcium silicate aqua monomers before calcium silicate hydrate nucleation

Cement and Concrete Research, 2023
Zhenning Li, Zongjin Li, Yunjian Li
exaly