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Oliveira, Benedito Tadeu de; Lourenço, Bettina Collaro Goerlich de. Reintegração de argamassas históricas. In: CONGRESSO INTERNACIONAL SOBRE O COMPORTAMENTO DE ESTRUTURAS DANIFICADAS, 3., 2002, Rio de Janeiro. Anais... Rio de Janeiro, 2002.
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Abstract

For the last fourteen years, the staff of the Departamento de Patrimônio Histórico (the Heritage Department) of the Casa de Oswaldo Cruz has been developing the work of Restoration and Preservation of the Manguinhos Architectonic Ensemble. Among the various interventions, both completed and under way, we selected the Reintegration of Historic Mortars as a research project that may contribute, in the area of Science and Technology, towards the Restoration and Preservation of Historical-Cultural Assets. According to the Brandian Theory, three key principles should guide a restoration intervention: I - The restoration should always be easily recognized, taking into account both historic and esthetic circumstances; II - As regards appearance, in respect of a work of art it is irreplaceable, but not totally so in regard to structures; III- All restoration interventions should facilitate future interventions. Taking the modern theory of restoration into account, there are several outstanding questions regarding the Reintegration of Historic Mortars that came up during the restoration works carried out at Manguinhos: - Physical-chemical compatibility (absorption, cracking, rate of wear, strength, color) between historic and new mortars; - The existence of corrosive mortars and deterioration of the original structures; - Reconstitution of the original mix in the process of mortar reintegration; - Comparison of historic mortars (Pavilhão Mourisco, Igreja Matriz, Teatro Municipal, Banco Central, Câmara dos Vereadores, Palácio das Laranjeiras);.- Use of contemporary products as additives in the reconstitution of the original mortar mix; - Use of contemporary products to protect the mortar; - Matching the original aspect in the reintegration of voids in the mortar.
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