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Every type of infrastructure project today is inseparable from good quality concrete, resulting in infrastructure that is superior, efficient and able to overcome various challenges. High quality concrete fulfills this because of its high durability, high initial compressive strength, high elastic modulus value and resistance to damage. Reactive powder concrete can be one solution, concrete without coarse aggregate has good homogeneity so as to produce concrete with high compressive strength. Reactive powder concrete was developed to improve the homogeneity of the mixture by replacing coarse aggregate and fine aggregate with quartz sand. This research aims to determine the differences in concrete plate crack patterns between experiments and ATENA 3D software modeling through the coordinates of the crack patterns that pass through the top surface of the concrete plate. The concrete mix design uses 15% silica fume. The test object for the crack pattern is in the form of a concrete plate with a design variation in thickness of 4, 5, 6, 7 cm with sides 70 × 30 cm (Length × Width). Ly/Lx design variation with a ratio of 2.5, 2.7, 2.9, 3.1 and the thickness of the concrete slab is 5 cm. The total test objects used were 8 pieces. Testing the crack pattern of the center point loading concrete plate using the Universal Testing Machine, the age of the test object is 28 days. The results of this research showed that crack patterns were significantly different between experimental and modeling using SPSS T-test with Sig values. (2-tailed) is 0.010006 smaller than Sig. = 0.05.

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Study of Cracking Patterns of Reactive Powder Concrete Plates with 15% Silica Fume and 30% Quartz Sand with ATENA 3D Software on Variations of Thickness Dimensions and Long-Short Span Ratio

  • 会议论文

  • 发表日期：

    2025年

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  • Gregorius Djati Kusumo Wirawan,
  • Wibowo,
  • Setiono

摘要

Every type of infrastructure project today is inseparable from good quality concrete, resulting in infrastructure that is superior, efficient and able to overcome various challenges. High quality concrete fulfills this because of its high durability, high initial compressive strength, high elastic modulus value and resistance to damage. Reactive powder concrete can be one solution, concrete without coarse aggregate has good homogeneity so as to produce concrete with high compressive strength. Reactive powder concrete was developed to improve the homogeneity of the mixture by replacing coarse aggregate and fine aggregate with quartz sand. This research aims to determine the differences in concrete plate crack patterns between experiments and ATENA 3D software modeling through the coordinates of the crack patterns that pass through the top surface of the concrete plate. The concrete mix design uses 15% silica fume. The test object for the crack pattern is in the form of a concrete plate with a design variation in thickness of 4, 5, 6, 7 cm with sides 70 × 30 cm (Length × Width). Ly/Lx design variation with a ratio of 2.5, 2.7, 2.9, 3.1 and the thickness of the concrete slab is 5 cm. The total test objects used were 8 pieces. Testing the crack pattern of the center point loading concrete plate using the Universal Testing Machine, the age of the test object is 28 days. The results of this research showed that crack patterns were significantly different between experimental and modeling using SPSS T-test with Sig values. (2-tailed) is 0.010006 smaller than Sig. = 0.05.