Susilorini, Retno and Ganis, Robert Indarko and Nugraha, Hartaman Aris and Syaefuddin, Imam and Ardi B, Sunu (2008) The Using of Sugar Cane Liquid as Green Retarder and Accelerator for Concrete Mixture. Prosiding Simposium Nasional RAPI VII Teknologi Ramah Lingkungan dan Hemat Energi. pp. 88-92. ISSN 1412-9612,
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Abstract
Sugar is well-known as good retarder to delay the concrete hardening. It is interesting to find another source of natural sugar, it is sugar cane liquid, to become ‘green’ retarder and accelerator concrete admixture. The research tries to deliver two extreme dosages of sugar cane liquid retarder admixture as 0.03% and 0.3% of cement weight. The specimens are categorized in mortar cubes and concrete cylinders with compressive strength design f’c = 30 MPa. They are vary in plain, added with sugar cane liquid 0.03% of cement weight, and added with sugar cane liquid 0.3% of cement weight. The curing conducted for 7, 14, and 28 days and then tested for its compressive strength. The mortar surface hardening is observed by trinoculer electronic microscope. This research meets conclusions as follow: (1) The sugar cane liquidas can be used as ‘green’ concrete admixture, (2) The dosage of sugar cane liquid admixture of 0.03% by weight of cement can perform as retarder because its value of compressive strength on days 7 and 14 is the lowest compared to plain mortar; the surface of mortar seems wet and softer; and the Vicat test shows that the penetration time is the highest compared to the plain mortar and the mortar with sugar cane liquid admixture of 0.03% by weight of cement while its resistance is the lowest, (3) The dosage of sugar admixture of 0.3% by weight of cement can perform as accelerator because its value of compressive strength on days 7 and 14 is the highest compared to plain mortar; the surface of mortar seems harder and smoother; and the Vicat test shows that the penetration time is the lowest compared to the mortar with sugar admixture of 0.03% by weight of cement while its resistance is the highest, and (4) It is still questioned whether the compressive strength value increase or decrease on the older ages
| Item Type: | Article |
|---|---|
| Subjects: | 600 Technology (Applied sciences) > 620 Engineering > 624 Civil engineering > Civil Engineering > Concrete |
| Depositing User: | Ms Rr. M.I. Retno Susilorini |
| Date Deposited: | 17 Mar 2019 12:00 |
| Last Modified: | 07 May 2020 08:25 |
| URI: | http://repository.unika.ac.id/id/eprint/18351 |
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