Characterization of Artificial Stone Developed with the Incorporation of Granite and Mirror Wastes in an Epoxy Matrix

Silva, Thaís Leal da Cruz; Carvalho, Elaine Aparecida Santos; Barreto, Gabriela Nunes Sales; Agrizzi, Carlos Paulino; Azevedo, Afonso R. G. de; Vieira, Carlos Maurício Fontes

doi:10.1590/1980-5373-MR-2022-0561

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Articles • Mat. Res. 26 (Suppl. 1) • 2023 • https://doi.org/10.1590/1980-5373-MR-2022-0561 copy

Characterization of Artificial Stone Developed with the Incorporation of Granite and Mirror Wastes in an Epoxy Matrix

Authorship SCIMAGO INSTITUTIONS RANKINGS

The objective of this research was to produce artificial stone plates based on granite and mirror wastes and epoxy matrix, by vibration, compression, and vacuum and to characterize them. Plates were manufactured with 15%wt epoxy resin and 85% of aggregates in the proportion of 1/3 of granite waste from Ocre Itabira gray granite and 2/3 of mirror waste. The apparent density, water absorption, and apparent porosity values were 2.22 g/cm³, 0.11%, and 0.25%, respectively, the flexural strength was 34.36 MPa, abrasive wear after a 1000m track was 2.28mm and the breaking height in the impact resistance test was 0.45m. In addition, the stone was resistant to several staining agents. Therefore, the technical viability of the material developed was verified, with results compatible with studies already carried out in the area, making it possible to apply it as coatings and countertops in civil construction.

Keywords:
Artificial stone; granite waste; mirror waste; epoxy resin

Type	Granulometric size (ASTM)	Granulometric size (mm)	Residue
Coarse	10 - 40	2.000 - 0.425	Mirror
Medium	40 - 200	0.425 - 0.075	Mirror
Fine	< 200	< 0.075	Granite

Mixture	Vibrate density average(g/cm³)
1	1.55 ± 0.02
2	1.38 ± 0.01
3	1.49 ± 0.03
4	1.64 ± 0.01
5	1.85 ± 0.03
6	1.72 ± 0.01
7	1.88 ± 0.01
8	1.80 ± 0.00
9	1.62± 0.02
10	1.65± 0.00

Source of Variation	Degrees of Freedom	Sum of Squares	Mean Square	F Value
Treatment	9	0.6923	0.0769	265.5658
Waste	20	0.0058	0.0003
Total	29	0.6980

Treatment	Average	Tukey Test ^* * The averages followed by the same letter in the Tukey test column are not different from themselves in a 5% of probability by Tukey Test.
7	1.88	A
5	1.85	AB
8	1.8	C
6	1.72	D
4	1.65	E
10	1.65	EF
9	1.62	EF
1	1.55	G
3	1.49	H
2	1.48	HI

	ASGM	Artificial Stone “Galaxy White” (CS)	Natural Gray Granite “Ocre Itabira” (NG)
Apparent Density (g/cm³)	2.22 ± 0.01	2.38 ± 0.00	2.70 ± 0.01
Apparent Porosity (%)	0.25 ± 0.02	0.18 ± 0.01	0.92 ± 0.02
Water absorption (%)	0.11 ± 0.01	0.08 ± 0.00	0.34 ± 0.01

	ASGM	Artificial Stone “Galaxy White” (CS)	Natural Gray Granite “Ocre Itabira” (NG)
Three-point bend strength (MPa)	34.36 ± 2.01	44.73 ± 4.61	12.54 ± 3.68

Materials	Thickness loss after Amsler wear test (mm)
Materials	500m	1,000m
ASGM	1.41	2.28
Artificial Stone “Galaxy White”(CS)	0.51	1.18
Natural Gray Granite “Ocre Itabira”(NG)	0.45	0.98

Material	Rupture Height (m)	Rupture Energy (J)
ASGM	0.45	4.41± 0.40
Artificial Stone “Galaxy White” (CS)	0.95	9.32 ± 0.98

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