Cement mortars with ceramic molds shells and paraffin waxes wastes: Physical and mechanical behavior. (1st August 2022)

• Record Type: Journal Article
• Authors: Cunha, Sandra; Tavares, André; Aguiar, José B.; Castro, Fernando
• Is Part Of: Construction & building materials. Volume 342:Part B(2022)
• Publication Date: 2022-08-01
• Subjects: Eco-friendly mortars -- Foundry wastes -- Ceramic mold shells -- Paraffin wax -- Organic phase change material -- Physical behavior -- Microstructure -- Mechanical behavior; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2022.127949
• Languages: English
• ISSNs: 0950-0618

Abstract

Highlights: Paraffin wax and ceramic molds, from the lost-wax process, were used as aggregate. Currently there are no known practical applications for these wastes. Four mortars were developed with different paraffin wax and ceramic molds contents. The obtained results showed a satisfactory physical and mechanical behavior. Abstract: Foundry industry produces millions of tons of wastes discarded in landfills. Many studies have focused on foundry sands, however other wastes are generated during the casting process and no reuse solutions are known. The main objective of this study was the incorporation of paraffin waxes and ceramic mold shells in cement mortars, evaluating the influence of different paraffin wax contents in the mortars physical and mechanical properties. The obtained results showed a decrease in the workability, water absorption, flexural and compressive strengths of the mortars. However, the mortars presented a satisfactory physical and mechanical behavior, evidencing a possible practical application.