New engineered stones: Development and characterization of mineral-glass composites

Autor: Gisele G. Santos, Murilo C. Crovace, Edgar Dutra Zanotto
Rok vydání: 2019
Předmět:
Zdroj: Composites Part B: Engineering. 167:556-565
ISSN: 1359-8368
DOI: 10.1016/j.compositesb.2019.03.010
Popis: Engineered stones are high-end materials increasingly being used as kitchen countertops, floor and facade tiles, as well as in other architectural applications. These materials consist of approximately 70–95 wt% of mineral particles (usually quartz) dispersed in a matrix made of cement, ceramics or, much more often, polymer resins. Despite their very attractive aesthetic appeal, using polymer matrices is associated to low wear resistance, low chemical resistance and degradation by UV radiation or by contact with hot objects; therefore the use of a glass matrix can overcome some of these disadvantages. This paper addresses the development, optimization of compositions and thermal treatment of a novel type of composite - engineered stones - using recycled window glass and four distinct minerals. New glass-mineral composites were developed containing up to 70% weight of albite, alumina, petalite or quartz (the rest being window glass). The materials were characterized for their flexural strength, hardness, water absorption, thermal shock resistance and chemical durability. Except for the Quartz/glass composites, low-porosity materials (
Databáze: OpenAIRE