Substitusi Material Pozolan Terhadap Semen pada Kinerja Campuran Semen
DOI:
https://doi.org/10.5614/jts.2017.24.3.7Keywords:
Campuran semen, material pozolan, sifat fisik, sifat mekanikal.Abstract
Abstrak
Penggunaan material semen dalam industri konstruksi terus meningkat dari tahun ke tahun dan peningkatan iniberakibat pada meningkatnya produksi gas buangan, co2 dialam yang berakibat pada pembentukan efek rumahkaca. Dalam rangka mengeliminasi pengaruh buruk terhadap lingkungan yang diakibatkan oleh teknologi maupunpenggunaan material yang tidak ramah lingkungan, para ahli dibidang rekayasa konstruksi terus berupaya untukmenemukan teknologi dan material alternatif yang dapat menghasilkan material konstruksi yang ramah lingkungantanpa mengurangi kinerja strukturalnya. Penggunaan teknologi daur ulang perkerasan jalan dengan penambahanmaterial alternatif pengganti semen pada konstruksi perkerasan jalan, merupakan upaya positif dalam rangkamendorong penggunaan teknologi dan material yang ramah lingkungan dibidang konstruksi bangunan teknik sipil.Material pozolan yang berupa material hasil buangan industri batu bara maupun bahan pertanian atau materialpozolan alam adalah material yang dapat digunakan sebagai bahan pengganti semen karena sifatnya yangmenyerupai semen jika ditambahkan pada campuran semen. Penggunaan material ini sebagai material penggantiatau substitusi semen dalam campuran beton menunjukkan peningkatan workabilitas dan kinerja campuran baikpada campuran beton mutu tinggi maupun pada campuran semen dengan kekuatan rendah (low strengthmaterials). Artikel ini membahas tentang beberapa hasil penelitian terhadap campuran beton/semen yang sebagiansemennya disubstitusi dengan material pozolan yang menunjukkan berbagai keunggulan dari campuran tersebutuntuk dapat diaplikasikan sebagai material konstruksi, baik pada campuran beton bermutu tinggi maupuncampuran semen dengan kekuatan rendah.
Abstract
The use of cement material in the construction industry increase continuously from year to year and this increaseresults in increased production of exhaust gases, co2 in nature which resulted in the formation of the greenhouseeffect. In order to eliminate the adverse influence on the environment caused by technology and the use ofenvironmentally unfriendly materials, experts in the field of construction engineering continues the efforts to findtechnologies and alternative materials that can produce environmentally friendly construction material withoutreducing its structural performance. The use of recycled technology in pavement contruction with alternativematerials as cement replacement is a positive effort in order to encourage the use of technologies andenvironmentally friendly materials in engineering construction. Pozzolanic material in the form of material wasteproduct of the coal industry and agricultural materials or natural pozzolan material is a material that can be usedas a cement replacement material because it is resembles a cement when added to the cement mixture. The use ofthis material as a material replacement or substitution of cement in the concrete mixture showed increasedworkability and performance either of high quality concrete or low strength materials. This article discusses someof the results of research on the cement mixture with the cement partially substituted by means of pozzolanicmaterial showing the superiority of the mixture to be applied as a construction material, either in a mixture of highqualityconcrete or cement mixture with a low strength.
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