ANALISIS SORPTIVITY LIGHTWEIGHT CONCRETE DENGAN VARIASI UKURAN GLASS POWDER

PUJAKUSUMA, HERWANTO ANUGERAH and Usman, Arie Putra (2025) ANALISIS SORPTIVITY LIGHTWEIGHT CONCRETE DENGAN VARIASI UKURAN GLASS POWDER. Undergraduate thesis, Sriwijaya University.

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Abstract

This study aims to analyze the effect of varying glass powder particle sizes on the sorptivity of lightweight concrete. The research involved testing sorptivity, compressive strength, setting time, slump flow, and density of concrete samples using glass powder sizes ranging from 10 mesh to 50 mesh. The results showed that finer glass powder particles tended to produce lower sorptivity values. The highest sorptivity was recorded at 10 mesh, reaching 0.002637 mm/s^1/2 with a porosity of 47.405%, while the lowest sorptivity was observed at 50 mesh, with a value of 0.002185 mm/s^1/2 and porosity of 20.652%. This indicates a direct relationship between porosity and water absorption in concrete. All measured sorptivity values met the recommended limit (< 0.2 mm/s^1/2), but showed an inverse correlation with compressive strength. The concrete with 10 mesh glass powder had the lowest compressive strength at 2.58 MPa. Additionally, coarser particle sizes led to shorter setting times, lower slump flow, and reduced density. The initial and final setting times for the 10 mesh samples were 228 minutes and 431 minutes, respectively, with a workability of 76.73%. The average density over 28 days was 1274 kg/m³, which is below the ASTM C567 standard range of 1,440–1,840 kg/m³. Therefore, the lightweight concrete produced in this study does not meet the minimum compressive strength standard of 17 MPa for structural use, indicating its suitability only for non-structural applications.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Lightweight concrete, sorptivity,glass powder
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials > TA418.9.C6.B538 Composite materials. Polymeric composites. Fibrous composites. Biomass chemicals. TECHNOLOGY & ENGINEERING / Material Science. SCIENCE / Chemistry / General T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials > TA418.9.C6S42 Composite materials--Finishing. Machining T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials > TA455.C43.C4626 Ceramic materials. Manufacturing processes. Joints (Engineering) TECHNOLOGY & ENGINEERING / Material Science
Divisions:	03-Faculty of Engineering > 22201-Civil Engineering (S1)
Depositing User:	Herwanto Anugerah Puja Kusuma
Date Deposited:	21 May 2025 08:17
Last Modified:	21 May 2025 08:19
URI:	http://repository.unsri.ac.id/id/eprint/173506

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