Sains Malaysiana 44(11)(2015): 1599–1607

Innovative Cement Additives Quality Improvers in Sustainable Cement and Concrete

(Kualiti Inovatif Aditif Simen Penambah Baik Mapan dalam Simen dan Konkrit)

LAI FOOK CHUAN*

Hume Concrete Products Research Centre Sdn. Bhd., Bangunan Pan Global, Level 2,

1(A) Jln Tandang, 46050 Petaling Jaya, Selangor Darul Ehsan, Malaysia

Diserahkan: 28 Mac 2015/Diterima: 22 Jun 2015

ABSTRACT

Cement industries globally produced about 2.282 billion ton/year and 25 billion tons of concrete are produced yearly all over the world, necessary measures are to be taken to reduce energy use along with the prevention of environmental degradation, depletion of the limited resources and contribute 7% to global warming effects due to the release of carbon dioxide to the atmosphere. Cement additives quality improver polymer (CAQIP) was developed from synthesized polymer, waste materials derived from petro-chemical and palm oil waste for production of sustainable cement. Industrial scale trial in a local cement plants by dosing 0.009%-0.690% CAQIP significant improved productivity, 8.3-27.5% efficiency in saving, 24.73-86.36% clinkering energy and 7.7-21.57% grinding energy in the production of Ordinary Portland Cement and sustainable cement. Strength quality improved 7.31-34.8% (2 day) and 3.85-57.58% (28 day). Carbon dioxide and others toxic gases emission was reduced 21.90-90.0% by replacing clinker with waste material such as fly ash (25-35%), out-spec clinker (50-100%) and limestone waste (5-25%). The developed CAQIP significant improved productivity, quality strength, reduced CO₂ emission, grinding & clinkering energy and enhanced production of sustainable cement and concrete in Malaysia.

Keywords: Cement additives; clinkering and grinding energy; palm oil waste; quality improver polymer; sustainable cement and concrete

 ABSTRAK

Industri simen global menghasilkan kira-kira 2.282 bilion tan/tahun dan 25 bilion tan konkrit dihasilkan setiap tahun di seluruh dunia, langkah perlu diambil bagi mengurangkan penggunaan tenaga di samping mencegah kemerosotan alam sekitar, penyusutan sumber terhad dan menyumbang 7% kepada kesan pemanasan global disebabkan oleh pelepasan karbon dioksida ke atmosfera. Polimer penambah baik kualiti aditif simen (CAQIP) telah dibangunkan daripada polimer sintesis, sisa bahan daripada petro-kimia dan sisa minyak sawit untuk penghasilan simen yang mapan. Percubaan skala perindustrian di logi simen tempatan menggunakan dos 0.009-0.690% CAQIP telah meningkatkan produktiviti secara bererti, 8.3-27.5% kecekapan dalam penjimatan, 24.73-86.36% tenaga klinker dan 7.7-21.57% tenaga pengisar dalam pengeluaran Simen Portland Biasa dan simen yang mapan. Kualiti kekuatan meningkat kepada 7.31-34.8% (2 hari) dan 3.85-57.58% (28 hari). Pelepasan gas toksid karbon dioksida dan lain-lain berkurangan sebanyak 21.90-90.0% dengan menggantikan klinker dengan sisa bahan seperti abu terbang (25-35%), klinker tidak mengikut spesifikasi (50-100%) dan sisa batu kapur (5-25%). CAQIP yang dibangunkan telah meningkatkan produktiviti, kualiti kekuatan, mengurangkan pelepasan CO₂, tenaga pengisar dan klinker serta meningkatkan pengeluaran simen dan konkrit mapan di Malaysia.

Kata kunci: Aditif simen; polimer penambah baik berkualiti; simen dan konkrit mapan; sisa sawit; tenaga klinker dan pengisar

RUJUKAN

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*Pengarang untuk surat-menyurat; email: fclai@humeconcrete.com.my