Are made on world's best Block making machine. Hydro-pneumatic Vibro press runs on a 15hp compressor, a 20 hp hydraulic pump and worlds best Columbia's Vibrating Technology of small eccentrically vibrating shaft at a very high speed.
Thus what you get is a dense block which is water-tight, with a least drying shrinkage due to excellent strength at the least cement content.
A hand press block machine or an egg layer block machine has a connected horse power of hardly ½ to ¾ hp thus you do not get dense blocks and even though you may get the strength by increasing the cement content you end up with high drying shrinkage and failure in moisture movement test as per IS 2185(part I).
390 x 190 x (Various thickness)
Average compressive strength at 28 days
Nomally. 1:14-24 (1 part cement : 14to24 parts of graded aggregates)
Water absorption in 24 hours
Less than 10% by weight of block
The variety of PraYoSa Solid Concrete Blocks is as follows:- 8” PraYoSa Solid Full
6” PraYoSa Solid Full
5” PraYoSa Solid Full
4” PraYoSa Solid Full 190
4” PraYoSa Solid Full 140(Multi)
In the following table various parameters of the Solid Blocks are figured: