What the FOCKING FOCK Geo!!!!!

But since the Wapda dude wants it, it could mean one thing, the chance of pilfering in this kind of construction is much higher than the high quality concrete one.

http://en.wikipedia.org/wiki/Roller_compacted_concrete

And for some extra effect:

The first RCC dam built in the USA was at Willow Creek, Oregon, a tributary of the Columbia River just above Heppner city. It was constructed by the Army Corps of Engineers between May 1982 and February 1983.[2] Construction proceeded well, within a fast schedule and under budget (estimated $50 million, actual $35 million). On filling though, it was found that the leakage rate between the compacted layers was unusually high. Remedial grouting at a further cost of $2 million was required to reduce this. Concern over the dam’s safety has continued, especially as Heppner had already suffered a dam collapse and fatal flooding with over 200 deaths in 1903. Within a few years of construction, problems were noted with stratification of the water and anoxic decomposition producing hydrogen sulfide. Concerns were expressed that this could in turn give rise to sulfuric acid, and thus damage to the concrete. Controversy continued for some years and the handling of the problem itself has been criticised. In 2004 an aeration plant was installed to address the root cause, as had been called for 18 years earlier.[2]