2026-01-232026-01-232025-11-04SANTOS, Arthur Rodrigues dos; OLIVEIRA, Marlon Teixeira de. Argamassas cimentícias com incorporação de cinza de caroço de açaí residual. Orientadora: Luciana de Nazaré Pinheiro Cordeiro. 2025. 24f. Trabalho de Curso (Bacharelado em Engenharia Civil) – Faculdade de Engenharia Civil, Instituto de Tecnologia, Universidade Federal do Pará, Belém, 2025. Disponível em: https://bdm.ufpa.br/handle/prefix/9119. Acesso em:.https://bdm.ufpa.br/handle/prefix/9119Açaí, a fruit native to northern Brazil, offers numerous nutritional and economic benefits to the region; however, its processing generates significant amounts of waste, most of which is not properly disposed of. Additionally, cement production in the construction industry contributes to the emission of environmentally harmful gases. Therefore, this study aims to investigate the use of residual açaí stone ash (CCAR) as a partial replacement for cement in rendering mortars, promoting the reuse of waste generated during açaí pulp extraction. Throughout the research, replacement levels of 6%, 11%, and 25% were evaluated, and physical and chemical analyses of the ash were conducted to verify its feasibility as a mineral additive. The properties of the mortars in both the fresh and hardened states were analyzed through tests such as workability, compressive strength, and water absorption by capillarity. The mortar with 11% substitution exhibited higher compressive strength (approximately 3.1 MPa) and lower water absorption by capillarity (around 0.85 g/cm³) compared to the reference mix and the 6% substitution. Results such as these may positively contribute to reducing mortar production costs, generating income, and promoting the use of a more sustainable material.Acesso AbertoCinzas de caroços de açaíSubstituição do cimentoAdição mineralArgamassasGestão de resíduosAçaí seed ashCement replacementMineral admixtureMortarsWaste managementCNPQ::ENGENHARIAS::ENGENHARIA CIVILArgamassas cimentícias com incorporação de cinza de caroço de açaí residualTrabalho de Curso - Graduação - ArtigoAttribution-NonCommercial-NoDerivs 3.0 Brazil