Pengaruh Penggunaan Cacahan Botol Plastik Polyethylene Terephthalate (PET) dan SAS Bond 105A terhadap Berat Jenis dan Kuat Tekan Bata Ringan Cellular Lightweight Concrete (CLC)

Manik, Demon Rivat Arganata (2018) Pengaruh Penggunaan Cacahan Botol Plastik Polyethylene Terephthalate (PET) dan SAS Bond 105A terhadap Berat Jenis dan Kuat Tekan Bata Ringan Cellular Lightweight Concrete (CLC). S1 thesis, Universitas Kristen Indonesia.

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Abstract

Bata ringan CLC adalah beton selular yang mengalami proses curing secara alami, yang mana agregat kasar (kerikil) digantikan oleh udara, dalam prosesnya mengunakan busa organik/foam yang sangat stabil dan tidak ada reaksi kimia ketika proses pencampuran adonan. Dalam penelitian ini selanjutnya PET digunakan sebagai pengganti agregat halus/pasir dengan menggunakan cacahan limbah plastik Polyethylene Terephtalate (PET) yang lolos saringan 9,6 mm dengan variable 10 %, 15 %, 20% dari agregat halus dan menggunakan SAS BOND 105A sebagai admixture untuk meningkatkan kuat tekan dan akselerasi pengikatan awal dengan persentase 7,5 %, 10 % dan 12,5 % dari jumlah air yang digunakan. Sebagai pembanding, rancangan campuran bata ringan juga dilakukan dengan mengombinasikan admixture SAS BOND 105A 10% dengan menggunakan cacahan limbah plastik Polyethylene Terephtalate (PET) yang lolos saringan 9,6 mm dengan variable 10 %, 15 %, 20% dari agregat halus. Pengujian kuat tekan dan berat jenis bata ringan dilakukan pada umur 7, 14, dan 28 hari,. Dari hasil pengujian diperoleh persentase optimum penggunaan SAS BOND 105A sebagai admixture adalah 10% dengan kuat tekan 24,09 kg/cm2 dengan berat jenis 901,15 kg/m3 . Sedangkan kuat tekan optimum didapat dari penggunaan SAS BOND 105A 10% dikombinasikan dengan penggunaan PET 10% dengan kuat tekan 22,26 kg/cm2 tetapi berat jenis paling rendah didapat dari kombinasi SAS BOND 105A 10% dengan PET 20% yaitu 785,27 kg/m3 . Peningkatan kuat tekan bata ringan CLC diperoleh dari penambahan admixture SAS BOND 105A tetapi menaikkan berat jenisnya sehingga digunakan cacahan limbah plastik Polyethylene Terephtalate (PET) untuk menurunkan berat jenis bata ringan. Kata kunci :bata ringan, CLC, SAS BOND 105A, PET, kuat tekan, berat jenis, optimum. / CLC lightweight bricks are cellular concrete that undergoes a natural curing process, in which coarse aggregate (gravel) is replaced by air, in the process using very stable organic foam and no chemical reaction when mixing the dough. In this research, PET was used as a substitute for fine aggregate / sand by using chopped plastic Polyethylene Terephtalate (PET) waste which passed 9.6 mm sieve with variable 10%, 15%, 20% of fine aggregate and using SAS BOND 105A as admixture for increase compressive strength and initial binding acceleration with 7.5%, 10% and 12.5% percentages of the amount of water used. As a comparison, a lightweight brick mix design was also carried out by combining 10% SAS BOND 105A admixture using polyethylene terephtalate (PET) plastic waste which passed a 9.6 mm sieve with a variable of 10%, 15%, 20% of fine aggregate. Testing of compressive strength and lightweight brick weight was carried out at the age of 7, 14 and 28 days. From the test results obtained the optimum percentage of using SAS BOND 105A as admixture is 10% with a compressive strength of 24.09 kg / cm2 with a specific gravity of 901.15 kg / m3. While the optimum compressive strength was obtained from the use of SAS BOND 105A 10% combined with the use of 10% PET with compressive strength 22.26 kg / cm2 but the lowest specific gravity was obtained from the combination of SAS BOND 105A 10% with PET 20% which was 785.27 kg / m3. The increase of CLC lightweight brick compressive strength was obtained from the addition of SAS BOND 105A admixture but increased its specific gravity so that it was used in the count of Polyethylene Terephtalate (PET) plastic waste to reduce the weight of the lightweight brick. Keywords : light brick, CLC, SAS BOND 105A, PET, compressive strength, specific gravity, optimum.

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