Stone-building materials, despite their natural origin, must be tested for the concentration of trace elements necessary to assess impact on environment and humans. In addition basic research determining mineral composition structural textural features, it is important analyze geochemical interactions between material matrix that have a negative surrounding our health. presented study, mineralo...

The material of building stone in this picturesque nature is a valuable treasure the hands man, and value that man discovered since ancient times because he believes truth preserves his artistic achievements over time reflects face civilization thought people. research aims to identify renaissance defining architectural identity through stage design art architecture full knowledge all technical...

to Netley for a two-months' course after studying for a similar period in Loudon. The Royal Army Medical College will not probably be completed for two <>r three years; indeed the foundation-stone of the new building has not been as yet laid, and until this building has been raised and fitted, entrants into the Indian Medical Service will probably continue to be sent to Netley; the R. A. M. C. ...

We have investigated several building stone materials, including minerals and rocks, using continuous flow hyperpolarized xenon (CF-HP) NMR spectroscopy to probe the surface composition and porosity. Chemical shift and line width values are consistent with petrographic information. Rare upfield shifts were measured and attributed to the presence of transition metal cations on the surface. The e...

In this paper, synthesis of geopolymer from fly ash with sodium hydroxide as activator was studied. Fly ash was replaced by Lime stone dust in various proportions (10% and 15%) where Fly ash was used as source material for synthesis of geopolymer. Sodium silicate (Na2SiO3) and sodium hydroxide (NaOH) solutions were mixed maintaining a silicate modulus (Na2O / SiO2) at 1. Scanning electron micro...

This paper briefly describes the preliminary results of an experimentation aimed to test a new non-destructive methodology based on the integrated application of 3-D terrestrial laser scanning and acoustic techniques in the ultrasonic range (54 kHz) in evaluating the quality of stone materials. Our target is to evaluate the state of conservation of stone building materials by correlating ultras...