Pengaruh Penambahan Limestone terhadap Kuat Tekan Semen Portland Komposit

https://doi.org/10.22146/jrekpros.31136

Irfan Purnawan(1*), Andi Prabowo(2)

(1) Program Studi Teknik Kimia, Fakultas Teknik, Universitas Muhammadiyah Jakarta
(2) Program Studi Teknik Kimia, Fakultas Teknik, Universitas Muhammadiyah Jakarta
(*) Corresponding Author

Abstract


Cement is the main component of construction that makes it a significant commodity. Portland Composite Cement (PCC) is one of new cement variants that has similar characteristic to Portland Cement, but with better quality, more environmentally friendly and cheaper in price. The objective of this research is to understand the influence of limestone to the compressive strength of the cement and to determine the percentage of added limestone that gives maximum compressive strength to PPC. The limestone varies added to the cement are 0, 5, 10, 15, 20 and 25%. The impact of added limestone can be studied from several tests such as fineness test, residue test, chemical composition test and cement compressive strength. The result shows that the higher percentage of limestone added to the cement, the higher the result for residue test and fineness test, but lower result for compressive strength. The highest compressive strength obtained is at 2 days age while the best composition of the blended cement is 77% clinker, 15% limestone, 3% gypsum and 5% blast furnace slag.

 

ABSTRAK

Semen merupakan bahan dasar utama konstruksi bangunan. Hal ini menjadikan semen merupakan komoditi yang strategis. Portland Composite Cement (PCC) merupakan jenis semen varian baru yang mempunyai sifat dan karakteristik hampir sama dengan semen Portland. Namun semen jenis PCC ini mempunyai kualitas yang lebih baik, ramah lingkungan dan harga yang lebih ekonomis. Tujuan penelitian ini adalah mengetahui pengaruh penambahan limestone dengan berbagai variasi terhadap kuat tekan dan menentukan massa limestone yang dapat memberikan kuat tekan maksimum pada semen Portland komposit. Pembuatan semen Portland komposit dilakukan dengan penambahan limestone sebagai aditif. Variasi limestone yang ditambakan adalah 0, 5, 10, 15, 20 dan 25%. Pengaruh penambahan limestone dapat diketahui dari hasil uji kehalusan, uji residu, uji komposisi kimia semen dan uji kuat tekan semen. Hasil penelitian menunjukan bahwa semakin besar persentase pemakaian limestone di dalam blended cement maka nilai residu dan nilai kehalusan akan semakin besar namun nilai kuat tekan akan semakin rendah. Kuat tekan semen yang tertinggi yaitu nilai kuat tekan pada umur 2 hari. Komposisi terbaik aditif limestone di dalam blended cement adalah 77% clinker, 15% limestone, 3% gypsum dan 5% blast furnace slag.


Keywords


Cement; portland composite cement; limestone; compressive strength; additives; clinker

Full Text:

PDF


References

ASTM C109, 1996, Test Method for Compressive Strength of Hydraulic Cement Mortars, Annual Book of ASTM Standard Section 4, ASTM International, United States of America.

ASTM C114, 1996, Standard Test Method for Chemical Analysis, Annual Book of ASTM Standard Section 4, ASTM International, United States of America.

ASTM C204-96, 1996. Test Method for Fineness of Hydraulic Cement by Air Permeability Apparatus. Annual Book of ASTM Standard Section 4, ASTM International, United States of America

ASTM C430, 1996, Standard Test Method for Fineness of Hydraulic Cement by the 45 µm (no 325) Sieve, Annual Book of ASTM Standard Section 4, ASTM International, United States of America

Azwir, H. dan Turiyono M., 1992, Kualitas Raw Mix dan Clinker, PT. Indocement Tunggal Prakasa, Tbk. Cituereup, Bogor.

Dewan Energi Nasional, 2016. Indonesia Energy Outlook 2016, Sekretariat Jenderal Dewan Energi Nasional. http://www.den.go.id/index.php/publikasi/index/EnergyOutlook, diakses 13 Desember 2017

Duda, W. H., 1985, Cement Data Book International Process Engineering in the Cement Industry Edisi 3. Bauverlag GmbH. Weisbaden and Berum, Mc Donald and Evan, London.

Hariawan, J.B., 2012, Pengaruh Perbedaan Karakteristik Type Semen Ordinary Portland Cement (OPC) dan Portland Composite Cement (PCC) terhadap Kuat Tekan Mortar, Universitas Gunadarma, Depok.

Kementerian Perindustrian, 2016, Pasokan Semen Nasional 102 Juta Ton pada 2017, http://www.kemenperin.go.id/artikel/12223/pasokan-semen-Nasional-102-juta-ton-pada-2017, diakses 13 Desember 2017

Lea, F.M. and Desch, C.H., 1976, The Chemical of Cement and Concrete 2nd Edition. Edward Arnold, Ltd., London.

Perry, R.H, 1984, Chemical Engineer’s Handbook Edisi 6, Mc Graw-Hill, New York.

Roosyanto, S., 1992, Instrumentasi, Industrial Relation Division Training and Development Departemen, Citeureup.

SNI 15-2049-1994, 1994, Mutu dan Cara Uji Semen Portland, Badan Standarisasi Nasional, Jakarta.

SNI 15-7064-2004, 2004, Semen Portland Komposit, Badan Standarisasi Nasional, Jakarta.

Suprapto, B.B., 1995, Teknologi Semen, Industrial Relation Division Training and Development Departement, Citeureup.

Sunarsip, 2007, Situasi Industri Semen Nasional dan Antisipasinya, Harian Investor Daily. p. 4

Vera, Roosyanto, dan Erry, 2000, Semen Portland Bahan Baku Sifat-Sifat dan Pengujian. Industrial Relation Division Training and Development Departement, Citeureup.



DOI: https://doi.org/10.22146/jrekpros.31136

Article Metrics

Abstract views : 3946 | views : 12735

Refbacks

  • There are currently no refbacks.




Copyright (c) 2017 Jurnal Rekayasa Proses

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Jurnal Rekayasa Proses  (print ISSN 1978-287X; online ISSN 2549-1490) is published by Chemical Engineering Department, Faculty of Engineering, Universitas Gadjah Mada. View website statistics.