reactive powder concrete (rpc) is an ultra high performance concrete which has superior mechanical and physical properties. the rpc is composed of cement and very fine powders such as crushed quartz (100–600 μm) and silica fume with very low water/binder ratio (w/b) (less than 0.20) and super plasticizer (sp). the rpc has a very high compressive and tensile strength with better durability prope...

atom transfer radical polymerization (atrp) of styrene was carried out at 105°c and a monte carlo simulation was employed to model the system. the variations of monomer conversion, the initiator concentration, average molecular weight, and molecular weight distribution were evaluated as the reaction proceeded. according to the results obtained, for similar reaction time, monomer conversion is h...

A high-strength Concrete structure is what everyone tries to achieve through the project. So many studies are being studied with various types of fibers. In this paper, I have used PVA fibers two different plasticizers. The main purpose study find amount plasticizer be and which feasible for proportions We casted 0.125%, 0.250%, 0.375%, 0.50% fiber in proportion weight cement. also their compre...

In the present work two selective and sensitive polyvinyl chloride matrix membrane electrodes were developed for the determination of analgin and camylofin dihydrochloride. Sensor I was developed using tetraheptylammonium bromide as an anion exchanger with 2-nitrophenyl octyl ether as a plasticizer for the determination of the anionic drug analgin. Sensor II was developed using potassium tetrak...