X-Ray Diffraction Studies of Rice Husk Ash—An Ecofriendly Concrete at Different Temperatures

In the majority of rice producing countries, much of the husk produced from the processing of rice is either burnt or dumped as waste. Rice husks are one of the largest readily available but most under-utilized biomass resources, being an ideal fuel for electricity generation. The author reported the X-ray diffraction studies on rice husk ash concrete samples heated at 300 degree Celsius and 1000 degree Celsius, which were compared and observed that, at 300 degree Celsius the inner surface of the specimen shows an extra compound. The X-ray diffraction studies of samples exposed to 1000 degree Celsius on temperature showed that, the additional chemical compounds formed at lower temperatures were not found at 1000 degree Celsius at outer and inner surfaces of the sample indicating its possible reason for exhibiting poor strengths for all specimens. The outer surface of the 1000 degree Celsius heated specimen showed a compound named dichloroglyoxime C sub( 2)H sub( 2)Cl sub( 2)N sub( 2)O sub( 2) along with SiO2 but the inner surface of the same sample showed SiO2 alone.