Contribution of Patent Information for Obtaining Mortars with Construction and Demolition Waste (CDW) as Recycled Aggregate
Keywords:Construction and demolition waste, Mortars, Patent information, Sustainability, Technological innovation, Data mining, Data analysis
Civil construction is one of the most important sectors for economic and social development, alternatively, it is a generator of waste that is commonly discarded in an irregular manner causing negative environmental impacts. Seeking knowledge in databases for innovation has become a common practice in most organizations in the development of new products, due to the evolution of information technology. Patent data shows changes in the structure and development of a country’s creative activities in technologies, industry, and companies. Analyzing the competitiveness between inventors and companies is feasible as patents contain descriptions of inventions and their functionalities. This study aims to collect patent information on mortars using construction and demolition waste (CDW) as an alternative raw material. We performed the research in an exploratory way with the purpose of defining more viable technological routes, determining the types of materials to be used, and the minimum and maximum percentages of substitution of the natural aggregate for the recycled aggregate. We used the patent databases Google Patents, European Patent Office (EPO) through Epacenet, and World Intellectual Property Organization (WIPO) available on Patentscope. As a result, 70 patent application records were identified according to the search descriptors, with Brazil as the country with the highest number of registrations. A survey of the number of patents deposited, published, office, and/or country was performed following the International Patent Classification. The results have the potential to contribute to the design of improvement strategies when using construction and demolition residues in mortars.
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We at this moment declare that the present paper is our original work and has not been previously considered, either in whole or in part, for publication elsewhere. Besides, we warrant the authors will not submit this paper for publication in any other journal. We also guarantee that this article is free of plagiarism and that any accusation of plagiarism will be the authors' sole responsibility. The undersigned transfer all copyrights to the present paper (including without limitation the right to publish the work in any and all forms) to BJEDIS, understanding that neglecting this agreement will submit the violator to undertake the legal actions provided in the Law on Copyright and Neighboring Rights (No. 9610 of February 19, 1998). Also, we, the authors, declare no conflict of interest. Finally, all funders were cited in the acknowledgments section.