PATENTS GRANTED

1. Gupta, T., Chaudhary, S., Sharma, R. K., and Jain, S. (2020). “Method of Preparation of Conplas Paver Block Utilizing waste Polythene.”, Grant No. 396218, Grant Date : 05/05/2022

The present invention relates to a method of preparation of paver block utilizing waste polythene bags. The object of the proposed invention is to utilize sustainable waste material and analogously minimizing the consumption of fine aggregate by replacing it with waste polythene bags in shredded form. The composition for preparation of sustainable conplas paver blocks comprises of cement (17.15%, 416.67 kg), fine aggregate (26.79%, 650.95kg), coarse aggregate (48.15%, 1170kg), waste polythene bags (1.71%, 41.55kg) and water (6.19%, 150.5kg) for production of one cubic meter concrete. Conplas paver blocks have unique feature of high impact resistance and energy absorption capacity. Following invention is described in detail with the help of Figure 1 of sheet 1 showing schematic presentation with dimensions of the sustainable conplas paver block.



2. Gupta, T., Sharma, R. K., Chaudhary, S., and Siddique, S. (2020). “Composition for preparation of Paver Block utilizing rubber waste.”, Grant No. 3825236, Grant Date : 27/12/2021

The present invention relates to a method of preparation of paver block utilizing rubber waste. The object of the proposed invention is to utilize waste tyre material and replacing the fine aggregate by waste tyre rubber ash (in powder form) and rubber fibers (in shredded form). The composition for preparation of sustainable rubcrete paver blocks comprises of cement (15.83%, 365 kg), fine aggregate (26.50%, 611 kg), coarse aggregate (48.79%, 1125 kg), waste rubber ash (1.69%, 39 kg), waste rubber fibers (1.34%, 31 kg), water (5.55%, 128 kg) and super plasticizer (0.30%, 7 kg) for production of one cubic meter concrete. Proposed paver blocks have unique feature of high energy absorption capacity, better abrasion resistance, and less water absorption. Following invention is described in detail with the help of Figure 1 of sheet 1 showing schematic presentation with dimensions of the proposed sustainable paver block.

PATENTS PUBLISHED (In process of Grant)

1. Chaudhary, S., Banu, S., Dave, U., and Luhar I., (2018). “Fly ash based Geopolymer Concrete incorporating rubber tire fibres as partial replacement of natural Sand there of useful for construction and infrastructure industries” Application No. 201811028519 A, The Patent Office Journal No. 33/2018 Dated 17/08/2018

The present invention relates to develop a Fly ash based Geopolymer concrete incorporating rubber tire fibers i.e. rubberized Fly ash based Geopolymer concrete, useful for construction industry. The process to manufacture rubberized Fly ash based Geopolymer concrete require low Calcium Fly ash, Sodium Hydroxide as activator, Sodium Silicate as hardener, 10 percent rubber tire fibers preferably recycled rubber tires from automobiles for partial replacement of natural Sand, aggregates and a very little quantity of distilled water. Moreover, superplasticizer can also be admixed with the rubberized Geopolymer concrete compositions to have desired workability of the Geopolymer concrete as an additional material. The process can be carried out at room temperature but to obtain earlier strength it has been carried out at 90°C and atmospheric pressure to obtain the best results. This proves it to be a low energy product. This process is not only eliminates the binder like Ordinary Portland Cement (i.e. OPC), but also eliminates water curing and consumes diminished quantity (10 percent less) of natural Sand - a product of restricted natural resources. Moreover, the incorporation of waste rubber tire fibers resolves the problem of its disposal and land filling to some extent analogous to Fly ash which too is a residual waste profoundly accessible from coal based thermal power stations facing the same dilemmas. The process emits nine times less Carbon Dioxide than Portland cement which provides relief to the burning enigma of global warming. Therefore, this invention is an inexpensive, environmental and user friendly as well as it converts the wastes into the best in its manufacturing. Furthermore, compressive strength of Fly ash based Geopolymer concrete remains almost similar even after incorporating ten percent rubber tire fibres.



2. Siddique, S., Chaudhary, S., and Shrivastava, S., (2018). “Recycling fine bone china product waste as supplementary cementitious material/pozzolana.”, Application No. 201811028533 A, The Patent Office Journal No. 33/2018 Dated 17/08/2018

This is the invention of supplementary cementitious material/pozzolana by fine grinding the waste/broken samples of biscuit fired fine bone china crockery products. This fine bone china powder can be used as partial replacement of cement or can be used as cement additive in concrete. Supplementary cementitious materials (SCMs)/pozzoianas contribute to the properties of hardened concrete through hydraulic or pozzolanic activity. This is the utilisation of waste biscuit fired fine bone china crockery products such as cups, plates and trays, etc. The waste is grinded in crushers to produce a powder like form that can pass through a sieve size of 90 micron. The process consists of obtaining the discarded pieces of fine bone china products and then crushing them as is by crusher/ grinder to obtain the powder form.

TECHNOLOGY TRANSFER

1. Compressed coloured bi-layered bricks

Developed a novel compressed coloured bi-layer brick by upcycling of dimensional stone processing waste as natural pigments. The novel building product is an industry ready solution and offers three key advantages – (i) environment friendly, safely disposes dimensional stone processing waste which is a major concern in Rajasthan, (ii) economical, costs lower than the conventional painted masonry wall, and (iii) aesthetically pleasing, natural colouring provides an appealing look to the product. The Technology has been successfully transferred to M/s Abhishek bricks, Indore, M. P., India by Indian Institute of Technology Indore with exclusive rights of manufacturing and sale in Madhya Pradesh only for the period of 03 years w.e.f. April 1, 2022, to March 31, 2025.