Development of optical fiber Light-Transmitting Concrete (LTC):  A narrative review. SJ Engineering Africa, [S. l.], v. 3, n. 2, p. 11, 2026. DOI: 10.51168/znvyjv30. Disponível em: https://engineering.sjpublisher.org/index.php/eng/article/view/12. Acesso em: 15 apr. 2026.