Uniaxial tension– Compression behaviour of the UHPFRC using GGBS
DOI:
https://doi.org/10.53660/CONJ-1204-T20Palavras-chave:
CUADRF, GGBS, Comportamento em compressión, Módulo de elasticidade, Pós-picoResumo
O objetivo deste estudo foi investigar as características mecânicas do Concreto Reforçado com Fibras de Ultra Alto Desempenho (CUADRF) sob condições de carregamento uniaxial de compressão utilizando resíduos na mistura. O UHPFRC é uma classe de material cimentício com alta durabilidade e resistência, limitada a um valor mínimo de resistência à compressão de 150 MPa. A diferença com o concreto tradicional está principalmente no comportamento pós-pico que ocorre devido à presença de fibras, que são responsáveis por garantir o comportamento dúctil do material. Ensaios de compressão uniaxial em vinte corpos de prova cilíndricos foram realizados e testados após 28 dias de cura, com um percentual de fibras de aço de 1% a uma velocidade de carregamento por deslocamento de 0,5 mm/min. A mistura utilizada permitiu fabricar um material tixotrópico, caracterizado por uma resistência à compressão e um módulo de elasticidade médio de 150,89 MPa e 47,71 GPa respectivamente. Foi utilizado um processo de produção simples, incluindo a Escória de Alto Forno Granulada moída (GGBS) como principal material sustentável e como substituto parcial do cimento. Curvas de comportamento para projeto e análise estrutural foram traçadas e comparadas com a curva experimental média, e com outras pesquisas consultadas na literatura, incluindo o comportamento elástico e inelástico do material.
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Referências
ALSALMAN, A.; DANG, C.; PRINZ, G. AND HALE, M. Evaluation of modulus of elasticity of ultra-high performance concrete. Construction and Building Materials Journal. v. 153, p. 918-928, 2017.
AMERICAN CONCRETE INSTITUTE. ACI 233R-95: Ground granulate blast-furnace slag cementitious constituent in concrete. ACI, 1995.
AMERICAN CONCRETE INSTITUTE. ACI 239R-18: Ultra-High-Performance Concrete: An Emerging Technology Report. ACI, 2018. ISBN 978-1-64195-034-3
AMERICAN CONCRETE INSTITUTE. ACI 318R-05: Building code requirements for structural concrete and commentary. ACI, 2005.
AMERICAN CONCRETE INSTITUTE. ACI 363R-92: Guide to Quality Control and Testing of High-Strength Concrete. ACI, 1992.
AMERICAN SOCIETY FOR TESTING AND MATERIALS. ASTM C469: Standard Test Method for Static Modulus of Elasticity and Poisson's Ratio of Concrete in Compression. ASTM, 1994.
ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS. ABNT NBR 5739: Concreto. Ensaio de compressão de corpos de prova cilíndricos. Rio de Janeiro: ABNT, 2007.
ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS. ABNT NBR 7215: Cimento Portland Determinação da Resistência à Compressão. Rio de Janeiro: ABNT, 1996.
ASSOCIATION FRANÇAISE DE GÉNIE CIVIL. AFGC: Ultra-High-Performance Fiber Reinforced Concretes. Recommendations. AFGC, 2013.
Behloul M, Batoz J. Ductal applications over the last Olympiad. In: Proceedings international symposium on ultra-high performance concrete, pp. 855-862, Kassel, Germany, 2013. ISBN 978-3-89958-376-2.
CAMACHO, Esteban Torregrosa. Dosage optimization and bolted connections for UHPFRC ties. 2013. Thesis (Doctor of Sciences UPV) - Universitat Politècnica de València, Valencia, Spain, 2013.
EUROPEAN STANDARD. EN: 12390-3: Testing hardened concrete - Part 3: Compressive strength of test specimens. EN, 2001.
EUROPEAN STANDARD. EN 1992-1-1: European Standard. Design of concrete structures - Part 1-1: General rules and rules for buildings. European Standard. EN, 2004.
EUROPEAN STANDARD. EN: BS 1881-121: Static modulus of elasticity in compression. BS, 1983.
GRAYBEAL BENJAMIN. Characterization of the behavior of Ultra High-Performance Reinforced Concrete. 2005. PhD Thesis. University of Maryland, USA.
GRAYBEAL, B. Compressive behavior of Ultra-High Performance Fiber Reinforced Concrete. Journal ACI Materials, v. 104, n. 2, p. 146-152, 2007.
GRAYBEAL B. UHPC in the US Highway Transportation System. In: INTERNATIONAL SYMPOSIUM ON ULTRA HIGH PERFORMANCE CONCRETE, Kassel, Germany, p. 11-18, 2008. ISBN 978-3-89958-376-2
HABEL, K.; VIVIANI, M.; DENARIÉ, E.; BRÜHWILER, E. Development of the mechanical properties of an Ultra-High Performance Fiber Reinforced Concrete (UHPFRC). Cement and Concrete Research Journal, v. 36, p. 1362-1370, 2006.
HASSAN, A.; JONES, S.; MAHMUD, G. Experimental test methods to determine the uniaxial tensile and compressive behavior of ultra-high performance fiber reinforced concrete (UHPFRC). Journal Construction and Building Materials, v. 37, p. 874-882, 2012.
HOANG, A. and FEHLING, E. Influence of steel fiber content and aspect ratio on the uniaxial tensile and compressive behavior of ultra-high-performance concrete. Construction and Building Materials Journal, v. 153, p. 790-806, 2017.
KAHANJI, Ch.; ALI, F.; NADJAI, A. Structural performance of ultra-high performance fiber-reinforced concrete beams. Journal Structural Concrete, v. 18, p. 249-258, 2017.
KRAHL, P.; SALEME, G.; AND CARRAZEDO, R. Compressive behavior of UHPFRC under quasi-static and seismic strain rates considering the effect of fiber content. Construction and Building Materials Journal, v. 188, p. 633-644, 2018.
LAMPROPOULOS, A.; PASCHALIS, S.; TSIOULOU, O.; DRITSOS, S. Strengthening of reinforced concrete beams using ultra high performance fiber reinforced concrete (UHPFRC). Journal Engineering Structures, v. 16, p. 370-384, 2016.
LARRARD, F. and SEDRAN, T. Optimization of Ultra-High-Performance Concrete by the use of a packing model. Cement and Concrete Research Journal, v. 24, n. 1, p. 997–1009, 1994.
LIM, D.H. and NAWY, E. G. Behavior of plain and steel-fiber-reinforced high-strength concrete under uniaxial and biaxial compression. Journal Magazine of Concrete Research, v. 57, n. 10, p. 603-610, 2005.
LOPEZ Juan Angel. Characterization of the tensile behavior of UHPFRC by means of four-point bending test. 2017. PhD These. University Polytechnic of Valencia, Span, 2017.
MA, J.; ORGASS, M.; DEHN, F.; SCHMIDT, D. Comparative investigation on ultra-high-performance concrete with and without coarse aggregate. In: Proceeding International Symposium on Ultra High-Performance Concrete (UHPC), Kassel, Germania, 2004. ISBN 978-3-89958-086-0.
MAHMUD, G.; YANG, Z.; AND HASSAN, A. Experimental and numerical studies of size effects of Ultra High Performance Steel Fiber Reinforced Concrete (UHPFRC) beams. Construction and Building Materials Journal, v. 48, p. 1027-1034, 2013.
NEVILLE, A. Properties of Concrete. 4th ed. Addison Wesley Longman Limited, Wigtown, United Kingdom, pp. 844, 1995.
OSTA, M.; ISA, M.; BALUCH, AND RAHMAN, M. Flexural behavior of reinforced concrete beams strengthened with ultra-high performance fiber reinforced concrete. Construction and Building Materials Journal, v. 134, p. 279-296, 2017.
POPOVICS, S. A numerical approach to the complete stress-strain curve of concrete. Journal Cement and Concrete Research, v. 3, n. 5, p. 583-599, 1973.
ROJAS, Rosangel Aguero. Estudio experimental y numérico de vigas usando Ultra-High Performance Reinforced Concrete-UHPFRC. 2019. Tesis (Doutorado em Engenharia Civil área de Estruturas) – Universidade Federal de Rio Grande do Sul, Porto Alegre, Brazil, 2019.
ROJAS R.; KORZENOWSKI C.; YEPEZ J.; BERALDIN R.; CAMPOS A.; MAGHOUS S. Composição de concreto, processo de obtenção de uma composição de concreto e usos de uma composição de concreto. Depositante: Universidade Federal do Rio Grande do Sul. Depósito: BR102020024167. Protocolo: 870200017039. Instituto Nacional de Propriedade Industrial (INPI), Janeiro 2020.
ROJAS, R.; KORZENOWSKI, C.; YÉPEZ, J.; BERALDIN, R.; CAMPOS, A.; PINTO L. Investigando diseños de mezcla para producir ultra high performance fiber reinforced concrete (UHPFRC) usando ANOVA. Revista Matéria, UFRJ, v. 24, n. 2, 2019.
ROJAS, R.; KORZENOWSKI, C.; YÉPEZ, J.; CAMPOS, A.; PINTO, L.; MALLMANN, C. Estudio experimental de mezclas de concreto para producir UHPRC usando materiales brasileños sustentables. Structures and Materials Journal. Revista RIEM-IBRACON, v. 12, n. 4, 2019.
ROSSI, P.; ARCA, A.; PARANT, E.; FAKHRI, P. Bending and compressive behaviors of a new cement composite. Cement and Concrete Research Journal, v.3 5, n. 1, p. 27-33, 2005.
Schmidt, M.; Fehling, E. Ultra-High-Performance Concrete: Research, Development and Application in Europe. International Concrete Abstracts Portal, v. 228, p. 51-78. January 2005.
SHAFIEIFAR, M.; FARZAD, M.; AND AZIZINAMINI, A. Experimental and numerical studies on mechanical properties of Ultra High Performance Concrete (UHPC). Construction and Building Materials Journal, v. 156, p. 402-411, 2017.
SINGH, M.; SHEIKH, A.; ALI, M. VISINTIN, P. AND GRIFFITH, M. Experimental and numerical studies of the flexural behavior of ultra-high performance fiber reinforced concrete beams. Construction and Building Materials Journal, v. 138, p. 12-25, 2017.
THANH, LE, Ultra high performance fiber reinforced concrete paving flags. 2008. Ph. D Thesis, University of Liverpool, Liverpool, U.K.
TOLEDO, R.; KOENDERS, E.; FORMAGINI, S.; FAIRBAIRN, E. Performance assessment of Ultra High Performance Fiber Reinforced Cementitious Composites in view of sustainability. Journal Materials and Design, v.3 6, p. 880-888, 2012.
WALRAVEN, J. On the way to international design recommendations for Ultra High Performance Fiber Reinforced Concrete. In: Proceedings of the International Symposium on UHPC and Nanotechnology for High Performance Construction Materials, pp. 51-58, Kassel, Germany, 2012. ISBN 978-3-86219-265-6.
WU, Z.; SHI, C.; KHAYAT, K. Influence of silica fume content on microstructure development and bond to steel fiber in ultra-high strength cement based materials (UHSC). Journal Cement and Concrete Composites, v. 71, p. 97-109, 2016.
YANG, S.L.; MILLARD, S.G.; SOUTSOS, M.N.; BARNETT, S.J.; LE, T.T. Influence of aggregate and curing regime on the mechanical properties of ultra-high performance fiber reinforced concrete (UHPFRC). Journal Construction and Building Materials, v. 26, n. 6, p. 2291-2298, 2009.
YU, R.; SPIESZ, P.; BROUWERS, H. Mix design and properties assessment of Ultra High-Performance Fiber Reinforced Concrete (UHPFRC). Cement and Concrete Research Journal, v. 56, p. 29-39, 2014.
YOO, D.; BANTHIA, N.; YOON, Y. Predicting service deflection of ultra-high performance fiber reinforced concrete beams reinforced with GFRP bars. Materials Composites Journal. Part B, v. 99, p. 381-397, 2016.
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