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All Journal JeLAST : Jurnal Teknik Kelautan , PWK , Sipil, dan Tambang
Putra, Hardiyanto Eka
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Civil Engineering, Building, Construction & Architecture

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STUDI EKSPERIMEN PENGARUH WAKTU PENUANGAN ADUKAN BETON READYMIX KE DALAM FORMWORK TERHADAP MUTU BETON NORMAL Putra, Hardiyanto Eka; Sardjana, Dharma; Samsurizal, Eddy
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 4, No 4 (2017): JURNAL MAHASISWA TEKNIK SIPIL EDISI FEBRUARI 2017
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (901.868 KB) | DOI: 10.26418/jelast.v4i4.19223

Abstract

In the manufacture of the test object, the method used is the method of SNI 2002. The cement used is a cement PPC. The test object is made cylindrical with Æ 15 cm, and 30 cm high of 7 pieces, and a cube of 15 cm x 15 cm x 15 cm as many as 120 pieces. There are eight variations of concrete sample that is normal with old concrete pouring slurry into formwork for 0 minutes, 30 minutes, 60 minutes, 90 minutes, 120 minutes, 150 minutes, 180 minutes and 210 minutes. Testing / testing specimen include compressive strength test, test setting time, test temperature and shrinkage and elastic modulus test. From the research the compressive strength characteristics of normal concrete with a foundry 0 minutes, 30 minutes, 60 minutes, 90 minutes, 120 minutes, 150 minutes, 180 minutes, 210 minutes, respectively produce compressive strength of concrete characteristics average (28 days) 319, 51 kg / cm2, 326.30 kg / cm2, 320.26 kg / cm2, 324.04 kg / cm2, 320.26 kg / cm2, 312.71 kg / cm2, 318 kg / cm2, and 259.83 kg / cm2. Modulus of Elasticity average normal concrete with casting time of 0 minutes, 30 minutes, 60 minutes, 90 minutes, 120 minutes, 150 minutes, 180 minutes, respectively produce Mpa 21614.38, 15691.11 MPa, 20527.44 MPa, 25 097 , 62 Mpa, 26718.54 MPa, MPa 23446.83, 23446.83 MPa. It can be concluded that the longer the time of stirring and pouring concrete into formwork, the compressive strength value produced will decrease. Keyword: pouring slurry, compressive strength, pull out, modulus of elasticity.
Co-Authors Dharma Sardjana Eddy Samsurizal