MUMBAI, India, Jan. 9 -- Intellectual Property India has published a patent application (202531116060 A) filed by Indian Institute Of Technology (Indian School Of Mines, Dhanbad), Dhanbad, Jharkhand, on Nov. 24, 2025, for 'an automated wet and dry cycles apparatus for evaluating the durability of cementitious and composite materials.'
Inventor(s) include Dr Kuldeep Sharma; Dr Sarat Kumar Das; Mr Akshay Dixit; and Mr Satyam Tiwari.
The application for the patent was published on Jan. 9, under issue no. 02/2026.
According to the abstract released by the Intellectual Property India: "An automated wet and dry cycles apparatus for evaluating the durability of cementitious and composite materials. The present invention relates to an automated apparatus configured to simulate wet-dry (w-d) cycles for evaluating the durability of cementitious and composite materials. The apparatus comprises a chamber 91) adapted for receiving lest specimens and provided with a water inlet (9), a connecting pipe (8), a water outlet (5) and a water level indicator (7) for controlling and monitoring the water depth in the chamber (1). The chamber is further equipped with a heating element (10), regulated by a temperature controller (11). A humidity controller unit 912) operates in conjunction with a exhaust fan (15). A porous sample holder tray (6), mechanically linked with a chain (3)-pulley system (16) carries the specimen inside the chamber (1). Initial dry mass is recorded through a load cell before the start of wet cycle. Water enters through the water inlet (9), ensuring circulation of water around the specimen. Load cell (14) continuously measures and records the increase in specimen mass. The specimen is lifted. The water is removed from the Chamber. The Chamber is heated to the drying temperature. Load cell (140 monitors the specimen weight. By analysing, mass variation, water absorption rates, desorption characteristics are found out."
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