Effects of effective microorganisms on properties of blended cement concrete

Concrete is an artificial rock that is made with a mixture of cement, aggregates and water with certain proportion. Concrete is one of the material that is most widely used in the construction industry. Cracks that occurs in concrete structure require regular maintenance and special type of treatmen...

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Main Author:	Ramli, Nurul As’shikin
Format:	Thesis
Language:	English
Published:	2017
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/78953/1/NurulAsshikinRamliMFKA2017.pdf
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id	my-utm-ep.78953
record_format	uketd_dc
spelling	my-utm-ep.789532018-09-19T05:12:58Z Effects of effective microorganisms on properties of blended cement concrete 2017-06 Ramli, Nurul As’shikin TA Engineering (General). Civil engineering (General) Concrete is an artificial rock that is made with a mixture of cement, aggregates and water with certain proportion. Concrete is one of the material that is most widely used in the construction industry. Cracks that occurs in concrete structure require regular maintenance and special type of treatment which will be very expensive, particularly to the massive concrete structures that bear loads or main structures members. So, to overcome this problem, EM (Effective Microorganism) concrete is introduced to study the potential of EM concrete in filling the cracks. By mixing EM with concrete mixture, the effect on the properties of concrete is assessed whether this EM concrete increase the workability, strength, durability and other properties related. In this study, understanding the function and mechanism of EM in concrete is crucial. Several parameters and concrete properties was tested in the experimental procedure and the effect of EM in concrete were assessed in this study. The performance of EM were measured through its fresh and hardened properties of the concrete. From this experimental study, the optimum EM mix to be added in the concrete is 10%, slump of EM concrete had increase by 11.4%. Compressive strength of the EM concrete also increase and modified compression strength is higher than cube compressive strength by the average of 5%. UPV value were increasing by 4%. The EM concrete had higher shrinkage and expansion strain. Water absorption shows that concrete with dry curing condition does absorb more water. EM concrete shows lower rate of carbonation process than control concrete by 50%. From this study, it can be concluded that the properties and behavior of EM concrete almost similar with the normal concrete. EM concrete does have the potential in filling the crack of concrete and further studied is crucial in understanding the mechanism and reaction of EM in concrete. 2017-06 Thesis http://eprints.utm.my/id/eprint/78953/ http://eprints.utm.my/id/eprint/78953/1/NurulAsshikinRamliMFKA2017.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:109040 masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Ramli, Nurul As’shikin Effects of effective microorganisms on properties of blended cement concrete
description	Concrete is an artificial rock that is made with a mixture of cement, aggregates and water with certain proportion. Concrete is one of the material that is most widely used in the construction industry. Cracks that occurs in concrete structure require regular maintenance and special type of treatment which will be very expensive, particularly to the massive concrete structures that bear loads or main structures members. So, to overcome this problem, EM (Effective Microorganism) concrete is introduced to study the potential of EM concrete in filling the cracks. By mixing EM with concrete mixture, the effect on the properties of concrete is assessed whether this EM concrete increase the workability, strength, durability and other properties related. In this study, understanding the function and mechanism of EM in concrete is crucial. Several parameters and concrete properties was tested in the experimental procedure and the effect of EM in concrete were assessed in this study. The performance of EM were measured through its fresh and hardened properties of the concrete. From this experimental study, the optimum EM mix to be added in the concrete is 10%, slump of EM concrete had increase by 11.4%. Compressive strength of the EM concrete also increase and modified compression strength is higher than cube compressive strength by the average of 5%. UPV value were increasing by 4%. The EM concrete had higher shrinkage and expansion strain. Water absorption shows that concrete with dry curing condition does absorb more water. EM concrete shows lower rate of carbonation process than control concrete by 50%. From this study, it can be concluded that the properties and behavior of EM concrete almost similar with the normal concrete. EM concrete does have the potential in filling the crack of concrete and further studied is crucial in understanding the mechanism and reaction of EM in concrete.
format	Thesis
qualification_level	Master's degree
author	Ramli, Nurul As’shikin
author_facet	Ramli, Nurul As’shikin
author_sort	Ramli, Nurul As’shikin
title	Effects of effective microorganisms on properties of blended cement concrete
title_short	Effects of effective microorganisms on properties of blended cement concrete
title_full	Effects of effective microorganisms on properties of blended cement concrete
title_fullStr	Effects of effective microorganisms on properties of blended cement concrete
title_full_unstemmed	Effects of effective microorganisms on properties of blended cement concrete
title_sort	effects of effective microorganisms on properties of blended cement concrete
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2017
url	http://eprints.utm.my/id/eprint/78953/1/NurulAsshikinRamliMFKA2017.pdf
_version_	1747818111993643008

Effects of effective microorganisms on properties of blended cement concrete

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