Siregar, Ahmad Munawir and Sembiring, Simon and Riyanto, Agus and Marjunus, Roniyus (2019) Pengaruh Penambahan Abu Sekam Padi Terhadap Sifat Fisis dan Mekanis pada Mortar. In: Seminar Nasional Sains, Matematika, Informatika, dan Aplikasinya (SMIAP), 24-25 Oktober 2019, Universitas Lampung. (Submitted)
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Abstract
The research was carried out about the effect of adding rice husk ash to physical and mechanical properties of mortar. Mortar was moulded with three compositions of portland cement, rice husk ash, and rice stalk fiber. Rice husk ash was burned at temperature of 700 oC for 2 hours. Rice stalk fiber was mechanically sliced up to 0.8 mm in size. Then mortar molding and maintenance was processed for 28 days. The mortars that had reached the age of 28 days were tested according to the Indonesia National Standard (SNI) including physical properties (water absorption, density), and mechanical properties (compressive strength, modulus of elasticity, modulus of rupture). Characterization of microstructure, morphology and composition all elements on the surface of mortar were processed by using Scanning Electron Microscopy - Energy Dispersive X-ray Spectroscopy (SEM-EDS). The results of research have effect of adding rice husk ash to physical and mechanical properties. Mortar with the most optimum physical and mechanical properties is mortar with a composition of 13: 2: 5. The results of the characterization using SEM-EDS shows that the surface of this compositions sample is better then other sample with its grain diameter (1.4 ± 0.9) µm. The most dominant elements in the mortar are element of Ca and Si which functioned as mortar binder and hardener.
| Item Type: | Conference or Workshop Item (Speech) |
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| Subjects: | Q Science > QC Physics |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Prodi Fisika |
| Depositing User: | Roniyus Marjunus |
| Date Deposited: | 04 Nov 2019 08:16 |
| Last Modified: | 04 Nov 2019 08:16 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/15310 |
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