what you want ? please use more words to describe......
if you want more information about reactive powder concrete..... i may try to fetch more....
[attachment=1852]
The world production of cement in 2007 was about 2.6 billion tons, compared to just 10 million tons in 1990. Traditionally, concrete was understood as a mixture of cement, water and aggregate but in modern concrete other constituents may also be present such as mineral components, chemical admixtures and fibres. Normal and high strength concretes were developed in the early 1900s and 1950s, respectively, whereas the development of ultra-high- performance concrete known as reactive powder concrete (RPC) was originated in the mid 1990 Reactive powder concrete (RPC), is a composite material with compression strength up to 170 N/mm2 is presented. The components for the RPC mixture are cement, fine aggregate, steel fibers, silica fume and super-plasticizer. They are carefully selected to achieve the optimal mixture. As well as mechanical properties the durability parameters were can be test by(gas permeability test, capillary water test).due to very high compression strength RPC can be used for big spans.RPC also has superb durability parameters such as abrasion resistance and reduced chloride permeability.this durability enhancements decrease maintenance costs and lengthen the service life of a structure


read more
http://cptechcenterpublications/sustainable/jireactive.pdf
http://ndtarticle/ndtce03/papers/v007/v007.htm
http://pcliv.ac.uk/~lethanh/documents/RPC.htm