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All Journal Jurnal Teknik Sipil LATERAL
Indra Syahrul Fuad
Program Studi Teknik Sipil Fakultas Teknik, Universitas Tridinanti
Civil Engineering, Building, Construction & Architecture Transportation

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ANALISIS MUTU BETON TERHADAP BETON PASCA BAKAR Bazar Asmawi; Indra Syahrul Fuad; Hendrik Jimmyanto
LATERAL: Jurnal Teknik Sipil Vol 1 No 1 (2023): Jurnal Teknik Sipil LATERAL
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Tridinanti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52333/lateral.v1i1.138

Abstract

A fire is an unwanted disaster, in the framework of a post-fire building structure it becomes the basis for deciding whether the building structure can still be used or not. The rise in high temperatures in concrete structures will result in changes in concrete, the problem faced is how to handle post-fire buildings. From this explanation, this research will discuss the strength of concrete structures, especially the ratio of normal concrete to concrete that has been burnt with variations in duration of burning 1 hour, 2 hours and 3 hours under normal conditions. Concrete compressive strength testing was carried out when the specimens reached the age of 3 days, 7 days, 14 days, 21 days, and 28 days with cylindrical specimens and the flexural strength of concrete was carried out when the specimens reached 28 days. The number of concrete compressive strength test specimens is 36 unit, and the flexural strength is 12 unit. The normal quality of concrete used is 30 MPa. From the results of the analysis regarding the tests carried out on compressive strength, it can be concluded that from the results of the compressive strength tests of 1 hour, 2 hours and 3 hours it decreased by 26.83%, 41.46% and 59.67% compared to concrete normal, for the flexural strength test results of 1 hour, 2 hours, and 3 hours decreased by 33.25%, 66.75%, and 66.75% compared to normal concrete.
STABILITAS TANAH LEMPUNG MENGGUNAKAN KAPUR DAN FLY ASH DENGAN PENGUJIAN CBR Dimitri Yulianti; Ani Firda; Bahder Djohan; Indra Syahrul Fuad
LATERAL: Jurnal Teknik Sipil Vol 1 No 2 (2023): Jurnal Teknik Sipil LATERAL
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Tridinanti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52333/lateral.v1i2.411

Abstract

Clay soil is formed from the chemical weathering of rock components, resulting in microscopic and submicroscopic particles. Clay soil has low shear strength and high compressibility. Therefore, efforts to improve it are necessary to overcome instability and settlement issues. This paper discusses the influence of CBR values when clay soil is mixed with fly ash and lime. Four proposed compositions are considered using 10% fly ash and 10, 15, 20, and 25% lime contents. The research results show that the proposed compositions have higher CBR values compared to the original CBR of the clay soil. For example, a composition with 10% fly ash and 10% lime has a CBR value of 13.65%, while a composition with 10% fly ash and 25% lime has a CBR value of 8.61%. Nevertheless, both compositions still yield higher CBR values than the original CBR value of the clay soil which was determined as being equal to 7.79%.
Co-Authors Ani Firda Bahder Djohan Bazar Asmawi Hendrik Jimmyanto Yulianti, Dimitri