Above 50 MPa, the term High Performance Concrete is used (50 MPa corresponds to a force of 50 tonnes acting on a square with sides of ten centimetres). The effect of temperature on different types of cements, coarse aggregates, fine aggregates and secondary additives have been discussed. Figure 1. Finally, the reinforcing mechanisms of graphene on RPC were understood, and the dynamic compression constitutive of RPC was established, which provided a theoretical basis for understanding the dynamic mechanical properties and behaviors of this concrete material for the first time. The mechanical properties measured in other places cannot be directly applicable to Hong Kong. Mechanical Properties of Corroded-Damaged Reinforced Concrete Pile-supporting Wharves Corrosion is one of the significant deteriorations of reinforced concrete structures. Polymer concrete was introduced in the late 1950s and became well known in the 1970s for its use in repair, thin overlays and floors, and precast components. Botanical recycled concrete, or concrete bonded with wood, is formed by heat pressing the mixture of concrete and wooden waste. Koch Synopsis: Previously published experimental data on the effect of nuc lear radiation on the properties of plain concrete are surrrnarized and 2 evaluated. Some recent research on mechanical properties of concrete. Authors Ali R Khaloo 1 , M Dehestani, P Rahmatabadi. Toughness: It is defined as the resistance […] For this purpose split type mould of same size was used. Abdulla: Mechanical Properties of Glass Fiber Reinforced Concrete 831 The authors found that, the compressive and splitting tensile strength and modulus of rupture of the nylon fiber concrete improved by 6.3%, 6.7% and 4.3% respectively, over those of polypropylene fiber concrete. Hilsdorf, J. Kropp, and H.J. Under high temperatures, the microstructure and mechanical properties of UHPC may seriously deteriorate. 1 Scopus citations. Results from this study would contribute to a better description of concrete biogenic corrosion processes, and consequently, to provide specific quantitative information on concrete … Concrete specimens used in this study as artificial rock samples were created to investigate the effects of grain size and specimen size on the mechanical properties of cementitious material. Concrete Physical & Mechanical Properties 43 Concrete Stress MPa Concrete Strain 0.003 f ’c Strain = L/L L = 0.003x300 = 0.9 mm Concrete Stress‐Strain Relationship. Achetez neuf ou d'occasion It accelerated the performance loss of the structures, leading to a cross-sectional reduction of steel, which affects its mechanical properties, particularly its tensile capacity and ductility. The shrinkage crack reducing potential of the nylon fiber in Volume: 117. Among the objectives of the paper, the approaches currently adopted to improve concrete mechanical properties at high temperature are treated as well. •High modulus of elasticity. SEM tests on composites showed the presence of the cement-aggregate interface with a thickness of 25 lm(Fig. Unlike normal rubber concrete, rubber lightweight aggregate concrete (RLC) with virtues of low unit weight, high flexibility, and suitable mechanical properties was proposed in recent years. Keywords: compressive; crumb rubber; flexural; recycled concrete aggregate; rubberized recycled aggregate concrete; splitting tensile. Hardened concrete has a number of properties, including: Mechanical strength, in particular compressive strength. Some of them are discussed here in brief: 1. 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