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The Effect of Different Proportions of Aggregates in Self-Compacting Concrete

Abd Halin, oor Fuzziha (2007) The Effect of Different Proportions of Aggregates in Self-Compacting Concrete. Universiti Teknologi Petronas. (Unpublished)

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Abstract

The purpose of conducting this study was to obtain Self Compacting Concrete with different proportions of aggregate. The project was an experimental basis and requires research to familiarize with Self Compacting Concrete. The project requirement was to consider aggregates as important aspect. Material preparation was very critical as the aggregates need to undergo the sieve analysis, soaking in the water for 24 hours and let it dry for another 24 hours at room temperature to ensure the aggregates were saturated surface dry. Admixture (VMA) and superplasticizer (HRWR) were to be added in SCC to ensure stability and flowability of the SCC. The results was obtained and the all the trial mixes could be considered as SCC from the results of Slump Flow Test and V-Funnel Test. For the Segregation Index (SI), the results show improvement from trial mix I (0.5 CAlF A) until trial mix 4 (0.8 CAlF A). For the Compressive Strength Test ouly trial mix 4 (0.8 CAlF A) achieved the requirement of at least 28 MPa at 28 days. The reason was due to different type of superplasticizer used. The. supetplasticizer need to be changed until the desired strength of concrete could be achieved. From the results, it can be concluded that SCC could be obtained nsing only admixtures and superplasticizer as the agent to increase stability and flowability. 1he ratio of coarse aggregate to fme aggregate that achieved the be~1 sec was 0.8. 11le most important thing was, the right superplasticizer need to be used in order to achieve desired strength in Self Compacting Concrete.

Item Type: Final Year Project
Academic Subject : Academic Department - Civil Engineering - Structures, materials and construction
Subject: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Engineering > Civil
Depositing User: Users 2053 not found.
Date Deposited: 27 Sep 2013 11:10
Last Modified: 25 Jan 2017 09:45
URI: http://utpedia.utp.edu.my/id/eprint/7057

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