DURABILITAS LIGHTWEIGHT CONCRETE TERHADAP LARUTAN ASAM KLORIDA (HCl) 5% DENGAN VARIASI UKURAN EXPANDED POLYSTYRENE (EPS)

PUTRA, FEBRIAN SYAH and Saloma, Saloma and Nurjannah, Siti Aisyah (2020) DURABILITAS LIGHTWEIGHT CONCRETE TERHADAP LARUTAN ASAM KLORIDA (HCl) 5% DENGAN VARIASI UKURAN EXPANDED POLYSTYRENE (EPS). Undergraduate thesis, Sriwijaya University.

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Abstract

In this study lightweight concrete was made with the addition of foam and expanded polystyrene as a substitution of aggregate. The use of foam and expanded polystyrene in concrete can significantly reduce the density of concrete. The composition of lightweight concrete consists of portland composite cement, expanded polystyrene, water, and foam. The ratio of the composition used is 1: 2.75 for cement and aggregate, 1: 40 for foaming agent and water, and 0,485 for W/C. The expanded polystyrene sizes used are 1mm, 2mm, and 3mm. Concrete is cured for 28 days. Concrete test results at 28 days provide compressive strength of 6,64 MPa, 5,53 MPa, 3,73 MPa, and 13,58 MPa, and density of 886 kg/m3, 830 kg/m3, 782 kg/m3, and 1870 kg/m3 for a mixture of LWC-1, LWC-2, LWC-3, and Normal Mortar. This research is focused on testing the durability of lightweight concrete using a 5% hydrochloric acid (HCl) solution with different conditions, that is open room conditions, completely immersed in 5% HCl conditions and cyclic conditions. The durability of lightweight concrete was carried out during 28 and 56 days of immersion in HCl solution to obtain the results of reduced compressive strength and density. Condition III shown the most significant reduction in density and compressive strength at the age of 56 days immersion. Normal mortar has the best durability when compared to LWC, with a reduction in density and compressive strength of 14,08% and 32,88%, while the LWC that has the best durability is shown in LWC-1, with a reduction in density and compressive strength of 18,41% and 35,44%.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	lightweight concrete, expanded polystyrene, durabilitas
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials > TA401.A327 Materials science T Technology > TH Building construction > TH1000-1725 Systems of building construction Including fireproof construction, concrete construction
Divisions:	03-Faculty of Engineering > 22201-Civil Engineering (S1)
Depositing User:	Users 6015 not found.
Date Deposited:	08 Jun 2020 07:13
Last Modified:	08 Jun 2020 07:13
URI:	http://repository.unsri.ac.id/id/eprint/29873

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