ANALISIS MIKROSTRUKTUR LIGHTWEIGHT CONCRETE MENGGUNAKAN GLASS POWDER DENGAN VARIASI RATIO VOLUME FOAM DAN PASTA SEMEN

NURITA, WULAND and Usman, Arie Putra (2024) ANALISIS MIKROSTRUKTUR LIGHTWEIGHT CONCRETE MENGGUNAKAN GLASS POWDER DENGAN VARIASI RATIO VOLUME FOAM DAN PASTA SEMEN. Undergraduate thesis, Sriwijaya University.

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Abstract

Lightweight concrete is concrete that has a lower density than normal concrete. Lightweight concrete is an innovative type of concrete made by adding additional materials such as foam and replacing some of the cement with glass powder. This research uses materials such as cement, water, foam agent and glass powder with a target weight of lightweight concrete ranging from 1140 – 1840 kg/m3. This research used variations of foam and cement paste 0.35 : 0.65 and 0.30 : 0.70, 30% glass powder, 0.4 w/c, and 1 : 40 for foam agent and water. Concrete curing was carried out for 28 days by immersing the test object in a bucket filled with water. The test results show that the GPC2-1 sample, namely a variation of foam and cement paste of 0.35: 0.65, produces an optimal concrete compressive strength of 5.47 MPa, and the optimal density of the GPC2-4 sample, namely a variation of foam and cement paste of 0.30 : 0.70 is 1542.1 kg/m3. The result of SEM and XRD test showed that variation of foam and cement paste samples of 0.35 : 0.65 (GPC2-1) produce smaller pores and a denser concrete matrix (CSH) and produce a more amorphous concrete structure. However, reducing foam in variation of foam and cement paste samples of 0.30 : 0.70 (GPC2-4) produces larger pores and a less dense concrete matrix (CH) and produces a less amorphous concrete structure. Based on these tests, it can be concluded that the larger the foam volume, the better the lightweight concrete microstructure produced.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Lightweight concrete, glass powder, foam, mikrostrukur, SEM, XRD
Subjects:	T Technology > TH Building construction T Technology > TH Building construction > TH1-9745 Building construction T Technology > TH Building construction > TH900-915 Construction equipment in building
Divisions:	03-Faculty of Engineering > 22201-Civil Engineering (S1)
Depositing User:	Wuland Nurita
Date Deposited:	16 Feb 2024 01:40
Last Modified:	16 Feb 2024 01:40
URI:	http://repository.unsri.ac.id/id/eprint/140870

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