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ITS » Master Theses » Manajemen Proyek-S2 MMT
Posted by eny at 02/01/2007 18:20:06  •  7583 Views


PERBAIKAN MUTU PADA PROSES PRODUKSI BETON NORMAL DENGAN MENGGUNAKAN METODE TAGUCHI

QUALITY IMPROVEMENT IN PRODUCTION PROCESS OF NORMAL CONCRETE BY USING TAGUCHI METHOD

Author :
Winta, Heru 




ABSTRAK

In mass production of normal concrete in a factory it is often that the quality produced is smaller than the target ideal value of the compressive strength expected. This of course will very much influence the profitability of that company. This experiment is aimed at seeking out the best design that is concrete mix with as high compressive strength as possible higher is better for concrete quality K 225 at 28 days. Experiment design used is Taguchi design with orthogonal array model. Analysis of the data done based on optimizing Signal-To-Noise Ratio SN Ratio and uses Analysis of Variance procedure ANOVA. Controllable factors observed are WC ratio sand content crushed stone gradation simulated in three different levels whereas noise factor simulated is cleanliness of sand aggregate with two levels. Analysis result shows that only WC ratio factor significantly influence the compressive strength of normal concrete. Making process setting of normal concrete so that compressive strength is optimum is reached at combination of WC ratio 0.35 sand content 35 and crushed stone gradation well gradation. With confidence interval 90 the range of compressive strength resulted is between 406.63 kgcm2 until 644.32 kgcm2.


ABSTRACT

Pada produksi beton normal secara massal di pabrik seringkali mutu yang dihasilkan lebih kecil dari target nilai ideal kekuatan tekan yang diharapkan. Hal ini tentu saja akan sangat mempengaruhi profitabilitas dari perusahaan tersebut. Penelitian ini bertujuan untuk mencari rancangan terbaik yaitu campuran beton normal dengan kekuatan tekan semaksimal mungkin higher is better untuk mutu beton K 225 pada umur 28 hari. Rancangan eksperimen yang digunakan adalah rancangan Taguchi dengan model matrik ortogonal. Analisa data dilakukan berdasarkan pengoptimalan Signal-To-Noise Ratio SN Ratio serta menggunakan prosedur Analisa Varian ANOVA. Faktor-faktor kendali yang diamati adalah WC ratio kadar pasir dan gradasi batu pecah disimulasikan dalam tiga level yang berbeda sedangkan faktor gangguan deraunoise yang disimulasikan adalah kebersihan dari agregat pasir dengan dua level. Hasil analisa menunjukkan bahwa hanya faktor WC ratio yang berpengaruh secara signifikan terhadap kekuatan tekan beton normal. Setting proses pembuatan beton normal agar kekuatan tekan optimum dicapai pada kombinasi WC ratio 035 kadar pasir 35 dan gradasi batu pecah gradasi baik. Taksiran harga kekuatan tekan yang optimum adalah sebesar 51186 kgcm2 dan dengan interval keyakinan 90 dihasilkan range dari kekuatan tekan antara 40663 kgcm2 sampai dengan 64432 kgcm2.



KeywordsCompressive strength ; Taguchi experiment ; Orthogonal array ; Signal-To-Noise Ratio (S/N Ratio) ; Analysis of Variance (ANOVA) ; Process setting
 
Contributor
  1. Ir. Bobby O.P. Soepangkat, MSc., PhD
Date Create: 11/08/2000
Type: Text
Format: pdf ; 66 pages
Language: Indonesian
Identifier: ITS-Master-3100002014798
Collection ID: 3100002014798
Call Number: 519.86 Win p


Source
Theses Magister Management Technology RT 519.86 Win p, 2000

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Copyright @2000 by ITS Library. This publication is protected by copyright and permission should be obtained from the ITS Library prior to any prohibited reproduction, storage in a retrievel system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s), write to ITS Library




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ITS-Master-3100002014798-518.pdf




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