A team led by Central Water Power Research Station (CWPRS), Pune, senior research officer V.T. Deshai, on Sunday, supervised the making of a cube from surki material collected from the area from where the material for constructing the Mullaperiyar dam was derived.

The test was done to ascertain the strength of the surki material used for the dam as per the direction of the Empowered Committee appointed by the Supreme Court to look into the safety of the dam. A senior official of the Irrigation Department said the cube would be sent for testing at the CWPRS lab in Pune and the result submitted to the Empowered Committee.

The test would help in a comparative study of the strength of the surki collected from the borehole of the dam structure.

However, the official said it was unlikely to give a real picture as the time and temperature of making the material of surki used for the construction of the dam and the cube differed considerably.

Sample collection

The CWPRS team decided to create the surki cube after getting surki samples from the borehole dug in different blocks. The collection of core samples from the baby dam was completed on Saturday, though the collection of surki material through the borehole continued on Sunday.

Kerala's representatives, Mullaperiyar Special Cell chairman M.K. Parameswaran Nair and Irrigation Department chief engineer P. Lathika, in addition to Tamil Nadu Public Works Department officials also visited the dam.

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