Intellectual Property India Publishes Patent Application for 'Deployment Of Recycled Coarse Aggregate For The Production Of Natural Fiber Reinforced Self Compacting Concrete' Filed by Mepco Schlenk Engineering College; B. Muthumari; M. Chellapandian; S. Surlya; and S. R. Akshaya

MUMBAI, India, April 17 -- Intellectual Property India has published a patent application (202641021786 A) filed by Mepco Schlenk Engineering College; B. Muthumari; M. Chellapandian; S. Surlya; and S. R. Akshaya, Sivakasi, Tamil Nadu, on Feb. 24, for 'deployment of recycled coarse aggregate for the production of natural fiber reinforced self compacting concrete.'

Inventor(s) include B. Muthumari; M. Chellapandian; S. Surlya; and S. R. Akshaya.

The application for the patent was published on April 17, under issue no. 16/2026.

According to the abstract released by the Intellectual Property India: "Due to the booin in the infrastructure sector, the construction of several bridges or buildings has increased over the past four or five decades. However, due to environmental impact and poor maintenance, several buildings are demolished, and the disposal of construction waste has been a major problem. In order to promote waste management and conserve natural resources, the aggregates derived from demolition waste are increasingly used as a replacement for conventional coarse or fine aggregate. In the present study, the coarse aggregates reclaimed from the construction waste are used for the production of SelfCompacting Concrete (SCC). In total, five SCC trial mixes were developed by varying the dosage of recycled aggregates till 100% in levels of 25%. The cast samples (cubes and cylinders) were tested to determine the compression and tensile strength of recycled coarse aggregate-based SCC. From the test results, the optimum replacement levels of recycled coarse aggregate were found to be 75% without compromising the mechanical properties. Moreover, the microstructural analysis revealed an increase in porosity or the number of pores present in the matrix with the increase in dosage of recycled aggregate. The optimum mix with 75% RCA is further used for casting with natural flax fiber of I% volume fraction. The addition of flax fibers helped in enhancing the compressive strength lost due to the addition of recycled aggregate. Moreover, the mode of failure was converted from brittle spa! ling to ductile multi- cracking mode with the use ofnatural flax fiber."

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