Portland Cement is the World's most widely used building material. Its production not only involves a large investment of capital, but at the same time, it is also ranked as one of the high energy consuming industries in the world. Hence scientists are continuously on the look-out for materials which can be used as substitute for conventional materials or which would possess such properties as would enable their use for construction instead of Portland Cement. In the last decade or so, significant advances have been made in the use of rice-husk for the production of cement. Its potential economic advantages for developing countries that have large quantities of rice-husk readily available, virtually free of cost, are enormous. At Cement Research and Development Institute (CRDI), instead of blending rice-husk ash (RHA) produced in a reducing atmosphere and at controlled temperatures, a new method involving very low or no technical knowledge, was adopted. Rice husk and lime slurry, in a certain ratio were mixed together in Hobart mixer to form a thick slurry from which balls of 8 cm, average diameter, were prepared by hand and dried in the sun. These sun-dried balls were burned in a locally fabricated incinerator. The ash thus formed was collected, cooled and ground in a ball mill to get the finished product. The Rice Husk Cement (RHC) produced was tested according to British Standard (BS) specifications issued by UNIDO. The results were found to be very much higher than BS specifications. indicating that this cement can very safely be used for brick, stone and concrete block masonry, masonry plaster and non-load bearing construction. Rice Husk Cements show excellent resistance to acidic environment. Since it contains as little as 20 percent CaO, upon hydration none of the free lime would be present as Ca(OH)2 the products of hydration being calcium-silicate hydrates and silica gel.