Propriedades mecânicas do concreto de alta resistência a baixas idades

• Ano de defesa: 1994
• Autor(a) principal: Jacqueline Maria Flor
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: Mecanicas do concreto; Baixas idades; Resistencia; Concreto; Engenharia de estruturas
• Link de acesso: http://hdl.handle.net/1843/PASA-8AEFUE

The results of an experimental investigation of the mechanical properties of high-strength concretes, produced using Type III cement, are presented. Tests were performed on four different concrete mixes, having a 28-day compressive strength of 30, 50, 55 and 60MPa. Tests results were obtained for ages ranging from 1 a 56 days. The early-age strengthdevelopment and the relationships between the uniaxial compressive strength, the secant modulus of elasticiy and the splitting tensile strengthto the compressive strength were derived. Good correlations were achieved between these relationships and tlhe experimental results found in tlhe literature.