Impact compression properties of concrete
Witryna16 cze 2024 · To study the dynamic mechanical properties and fracture law of concrete after thermal treatment and reveal its mechanism, the impact compression test was carried out on different thermal-treated (400-800 °C) concrete specimens using a split Hopkinson pressure bas (SHPB) system. By using ANSYS/LS-DYN … WitrynaConcrete has a very low coefficient of thermal expansion, and as it matures concrete shrinks. All concrete structures will crack to some extent, due to shrinkage and …
Impact compression properties of concrete
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Witryna1 lut 1993 · @article{osti_10133387, title = {Impact compression properties of concrete}, author = {Grady, D E}, abstractNote = {Controlled impact experiments have been performed on concrete to determine dynamic material properties. The … Witryna2 dni temu · Experimental work for the compressive strength of recycled aggregate concrete was designed and performed with 264 cubes. The results indicated that the recycled coarse aggregate (RCA) replacement ...
Witryna27 sty 2024 · In marine engineering, using corals as aggregates to prepare concrete can reduce both the exploitation of stones and the transportation cost of building materials. However, coral aggregates have low strength and high porosity, which may affect the workability and mechanical properties of concrete. Hence, superfine cement is used … Witryna14 lip 2015 · This paper examines some properties of concrete, such as strength, oxygen permeability and sorptivity using starch [cassava (CA) and maize (MS)] as admixtures. Concrete cubes containing different percentages of the CA and MS by weight of cement (0, 0.5, 1.0, 1.5 and 2.0 %) were cast. Compressive strength tests …
Witryna1 wrz 2024 · Cement saturation and the effect on stability and compressive strength of concrete; Effects of water-cement ratio and notches to the flexural strength of … Witryna19 mar 2024 · Properties of Concrete. Following are the important properties of fresh concrete. Setting. Workability. Bleeding and Segregation . Bleeding. Segregation. Hydration. Air Entrainment. 1. …
Witryna10 sie 2010 · The dynamic mechanical properties of reactive powder concrete subjected to compressive impacts with high strain rates ranging from 10 to 1.1×102 s−1 were investigated by means of SHPB (split-Hopkinson-pressure-bar) tests of the cylindrical specimens with five different steel fiber volumetric fractions. The …
Witryna19 gru 2024 · This study aimed to determine the mechanical properties and absorption of high-strength fiber-reinforced concrete (HSFRC), using sustainable natural fibers. In this analysis, two types of fibers were used, namely, ramie and abaca. Two different HSFRC mixtures were also designed, where one composition emphasized ordinary … simplify 2a x 3aWitryna1 lut 2016 · The effect of the deformed shape of steel fibers on dynamic compressive properties of concrete was investigated by Al-Masoodi et al. [83]. In their study [83], γ-and W-shaped steel fibers ... raymond rj50n parts manualWitryna14 kwi 2024 · Background The investigation of reinforced concrete slabs under impact loading through the experiment is expensive and time-consuming however … raymond rj50 parts manualWitryna6 godz. temu · Concrete is a building material that is most widely used because of its excellent mechanical performance and durability. Compressive strength is an essential property of concrete, which changes with time under various factors. In this paper, the time variation law of the compressive strength of concrete was reviewed from three … raymond rj50nWitrynaIn order to explore the mechanical properties of rock with deep in-situ stress under explosive impact, cemented sand material (artificial material) instead of rock was … simplify 2b+7 b+3Witryna12 kwi 2024 · To exploretheeffects of physical, mechanical, anti-deterioration properties of graphene oxide (GO) on cement-based cementitious materials, GO sheet dispersions areprepared by the improved Hummers method and ultrasonic dispersion method. The influence of theGO content on the compressive and flexural strengths of cement … simplify 2b+5b+3bWitryna13 kwi 2024 · This paper presents a numerical study on the static behavior and cyclic behavior of UHPC-filled steel tube (UHPCFST) columns. A novel fiber element model … raymond rj50p