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All Journal Matriks Teknik Sipil Sustainable Civil Building Management and Engineering Journal
Endah Safitri
Universitas Sebelas Maret
Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Engineering Materials Science & Nanotechnology

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Kajian Kuat Tekan dan Modulus Elastisitas Pada Beton Variasi Limbah Granit Sebagai Substitusi Parsial Agregat Kasar Najwa; Wibowo; Endah Safitri
Sustainable Civil Building Management and Engineering Journal Vol. 3 No. 2 (2026): April
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/scbmej.v3i2.2980

Abstract

One of the key aspects of construction is the use of concrete, making research to improve its quality highly necessary. This study uses recycled aggregate in the form of granite waste as a partial substitute for coarse aggregate to produce environmentally friendly concrete while maintaining its quality. The aim of this research is to determine the effect of varying granite waste content on the compressive strength and modulus of elasticity of concrete. The experimental method is used in this research, which focuses on concrete with granite waste variations of 0%, 15%, 30%, and 45%. Testing the compressive strength and modulus of elasticity of concrete using cylindrical specimens with a diameter of 15 cm and a height of 30 cm with a Compression Testing Machine and an additional dial gauge to measure specimen deformation. The compressive strength tests for concrete with granite waste variations of 0%; 15%; 30%; and 45% result in values of 22,27 MPa; 23,26 MPa; 29,27 MPa; and 25,28 MPa, respectively. Meanwhile, the modulus of elasticity tests yield values of 21727,29 MPa; 21882,92 MPa; 25920,23 MPa; 22585,91 MPa, respectively.
KAJIAN KUAT LENTUR DAN LENDUTAN PADA VARIASI KETEBALAN PELAT BETON BUBUK REAKTIF DENGAN SILICA FUME 15% DAN PASIR KUARSA 30% Diffa Deff Tiara Pricilia; Wibowo Wibowo; Endah Safitri
Matriks Teknik Sipil Vol 12, No 1 (2024): Juni
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mateksi.v12i1.86763

Abstract

Abstract The need for infrastructure development is increasing in the future. The increase in the need for infrastructure development is directly proportional to the increase in concrete production. One of the concrete innovations to deal with these problems is reactive powder concrete. This concrete has advantages over conventional concrete because it can increase compressive strength, durability, and increase flexural strength. One of the applications of reactive powder concrete is concrete slab structure. This research is intended to identify the effect of concrete slab thickness dimensions on the maximum load, flexural strength, and deflection that occur in the slab. The experimental method was used with test specimens in the form of concrete slabs measuring 70 cm long, and 30 cm wide, and thickness variations of 4 cm, 5 cm, 6 cm, and 7 cm. Flexural strength testing was carried out on specimens in the form of plates and beams with dimensions of 40 cm long, 10 cm wide, and 10 cm high to determine the modulus of rupture value. The modulus of rupture test results are in the form of MOR values, then compared with the compressive strength of concrete. Flexural strength testing is done by placing the plate on top of the two pedestals with centralized loading and placing a dial gauge under the test piece to determine the amount of deflection. The test results in the form of tables and graphs show that the thickness dimension of the slab has a significant effect on the maximum load that can be received by the slab and the deflection that occurs in reactive powder concrete slabs.
Co-Authors Agus Setiya Budi Diffa Deff Tiara Pricilia Najwa Tyas Annisaa Wibowo Wibowo Wibowo