Determination of cracking related properties of engineering cementitious composites

2017-09-12
Keskin, Süleyman Bahadır
Şahmaran, Mustafa
Yaman, İsmail Özgür
Engineered Cementitious Composites (ECC) are relatively new types of fiber reinforced cementitious materials with enhanced mechanical properties such as tensile strain hardening accompanying high tensile strain capacity. This is mainly attributed to close and multiple cracks with widths remaining under 60 µm which contributes to durability of ECC material. These properties are only achievable as a result of a micro-mechanical design that requires special ingredients that make ECC costly to be used alone, however it is possible to use ECC together with other construction materials such as steel and concrete. On the other hand, as a result of abundant binders and low water to binder ratio, ECC shrink more compared to other construction materials. In this paper, shrinkage properties including restrained shrinkage of four different ECC mixtures are determined along with the tensile creep behavior. Furthermore a new setup with the method and procedure to determine the tensile creep is given in details.
Proceedings of the 2nd International RILEM/COST Conference on Early Age Cracking and Serviceability in Cement-based Materials and Structures, 12 - 14 Eylül 2017

Suggestions

Investigation of structural and electronic properties of ZnCdTe ternary alloy nanostructures
Kurban, Mustafa; Erkoç, Şakir; Department of Physics (2016)
Nanostructures, including II-VI compound semiconductors, have attracted enormous attention in a wide range of applications of nanotechnology due to the unusual mechanical, electrical and thermal properties under varying size, geometry, temperature and pressure when compared to corresponding bulk materials. However, these properties are not directly measurable by experiments because of the methods or the availability of the experimental tools, so theoretical models and computations play an important role in ...
Determination of mechanical properties of hybrid fiber reinforced concrete
Yurtseven, Alp Eren; Tokyay, Mustafa; Department of Civil Engineering (2004)
Fiber reinforcement is commonly used to provide toughness and ductility to brittle cementitious matrices. Reinforcement of concrete with a single type of fiber may improve the desired properties to a limited level. A composite is termed as hybrid, if two or more types of fibers are rationally combined to produce a composite that derives benefits from each of the individual fibers and exhibits a synergetic response. This study aims to characterize and quantify the mechanical properties of hybrid fiber reinfo...
Synthesis and characterization of Ti-based bulk amorphous/naocrystalline alloys for engineering applications
Abdelal, Ali; Akdeniz, Mahmut Vedat; Department of Metallurgical and Materials Engineering (2004)
Amorphous and bulk amorphous metallic alloys are an intriguing class of structural materials and possess a range of interesting properties, including near theoretical strength, high hardness, extremely low damping characteristics, excellent wear properties, high corrosion resistance, low shrinkage during cooling and almost perfect as-cast surfaces with good potential for forming and shaping. In this study, new Ti-based bulk amorphous alloys are tried to be modeled and synthesized. For that purpose, electron...
Experimental investigation of CNT effect on curved beam strength and interlaminar fracture toughness of CFRP laminates
Arca, M. A.; Çöker, Demirkan (2014-06-20)
High mechanical properties and light weight structures of composite materials and advances in manufacturing processes have increased the use of composite materials in the aerospace and wind energy industries as a primary load carrying structures in complex shapes. However, use of composite materials in complex geometries such as L-shaped laminates creates weakness at the radius which causes delamination. Carbon nanotubes (CNTs) is preferred as a toughening materials in composite matrices due to their high m...
Analysis of reinforced concrete columns retrofitted with fiber reinforced polymer lamina
Binici, Barış (2007-01-01)
Fiber reinforced polymer (FRP) lamina have been used widely in the last decade to enhance strength and deformation capacity of deficient reinforced concrete (RC) columns. Seismic assessment and retrofit of existing columns in buildings and bridge piers necessitate accurate prediction of the available deformation capacity. In this study, a new analytical model is proposed to represent potential plastic hinge regions of RC columns prior to and after FRP retrofit. A recently developed variable confined concret...
Citation Formats
S. B. Keskin, M. Şahmaran, and İ. Ö. Yaman, “Determination of cracking related properties of engineering cementitious composites,” 2017, p. 861, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/86217.