The Performance of Concrete Using Sugar as Green Retarder and Accelerator
| Main Authors: | Susilorini, Retno, Etmawati, Dina, Yuwono, Armelia, Nikodemus, -, Setiawan, Budi |
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| Format: | Article PeerReviewed Book |
| Bahasa: | eng |
| Terbitan: |
Universitas Muhammadiyah Surakarta
, 2008
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| Subjects: | |
| Online Access: |
http://repository.unika.ac.id/18354/1/Susilorini_RAPI2008_S012.pdf http://repository.unika.ac.id/18354/ |
Daftar Isi:
- Concrete structure has become popular material in construction world. Its popularity comes from the strength, durability, and low environmental impact. The durability of concrete is positive contribution in environmental revitalization. The green concrete merely uses green materials. This paper purposes to use sugar as green materials for concrete retarder admixture. The research tries to deliver two extreme dosages of sugar retarder admixture, it is 0.03% and 0.3% of cement weight that becomes ingredient of concrete mixture. Several mortar cubes and concrete cylinders specimens are used with compressive strength design 30 MPa and divided into variant of plain, added by sugar 0.03% of cement weight, and added by sugar 0.3% of cement weight. All specimens are cured for 7, 14, and 28 days, and then tested for its compressive strength. There is also an observation of mortar surface hardening by trinoculer electronic microscope. This research meets conclusions as follow: (1) The use of sugar as concrete admixture will fulfill the need of safe and green concrete admixture, (2) The dosage of sugar admixture of 0.03% by weight of cement can perform as retarder because its value of compressive strength at days 7 is lower than plain mortar; the surface of mortar seems wet and softer; and the Vicat test shows that the penetration time is longer compared to the plain mortar and the mortar with sugar admixture of 0.03% by weight of cement, and (3) The dosage of sugar admixture of 0.3% by weight of cement can perform as accelerator because its value of compressive strength at days 14 is higher than plain mortar; the surface of mortar seems harder and smoother; and the Vicat test shows that the penetration time is shorter compared to the mortar with sugar admixture of 0.03% by weight of cement.