Degradasi Kekuatan Beton Akibat Intrusi Mikroorganisme

Ashad, Hanafi (2010) Degradasi Kekuatan Beton Akibat Intrusi Mikroorganisme. Jurnal Teknik Sipil, 13 (6). pp. 151-158. ISSN 0853-2982

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Abstract

This paper presents the experimental study on concrete strength degradation under intrusive of microorganism. The intrusion media of coconut water with natural fermentation process produces microorganism with dominant elements are aspergillus niger and sacchromycode ludwigi. The microorganism may be well spread in concrete due to nutrition such as free lime from reaction process. The microorganism in its present in concrete produces sulfuric acid (H2SO4) and its reaction with calsium hydroxide (CaOH) causes strength reduction in concrete. Experimental result shows that for concrete of minimum strength, its strength degradation is more sensitive due to intrusion microorganism. The degradation in strength concrete may be of range 60% for concrete strength fc’ = 25 MPa, 50% for fc’ = 40 MPa, and 33% for fc’ = 60 MPa.

Item Type:	Article
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	FAKULTAS TEKNIK > Teknik Sipil
Depositing User:	Unnamed user with email admin@umi.ac.id
Date Deposited:	13 Jun 2023 07:33
Last Modified:	13 Jun 2023 07:33
URI:	http://repository.umi.ac.id/id/eprint/2652

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