Baskoro, Rama Willysetyo (2025) Durability of hydrogel-based self-healing geopolymer mortar in seawater environment / Rama Willysetyo Baskoro. Diploma thesis, Universitas Negeri Malang.
Full text not available from this repository.Abstract
p SUMMARY Willysetyo R. 2025. Durability of Self-Healing Geopolymer Mortar Incorporating Hydrogel in Marine Environment. Undergraduate Thesis Department of Civil Engineering and Planning Faculty of Engineering Universitas Negeri Malang. Advisor (1) Puput Risdanareni S.T. M.T. Ph.D. Keyword hydrogel physical properties mechanical properties absorption healing The manufacturing process of Portland cement is one of the largest contributors to global carbon dioxide emissions because it requires heating limestone at high temperatures. As an effort to reduce this impact fly ash-based geopolymer mortar was developed. Fly ash-based geopolymer mortar is a mortar mixture in which the binder material does not use cement but is replaced by fly ash. Fly ash-based geopolymer mortar is known to have good durability however the potential for microcracks still exists so self-healing geopolymer mortar based on hydrogel emerged to overcome this issue. This research design began with testing the materials used followed by manufacturing test specimens according to the mortar mix design. Afterwards the specimens were cured using the internal curing method for 28 days. Compressive strength tests were carried out on specimens at ages of 14 28 and 56 days followed by durability tests and healing capacity tests. The results of the physical and mechanical properties tests of the mortar showed that the bulk density of the mortar was inversely proportional to the amount of hydrogel added. The results of the mechanical property tests in the form of compressive strength tests showed that the addition of hydrogel reduced the compressive strength as evidenced by the specimen without hydrogel having the highest compressive strength of 35.49 MPa. The results of the durability test on capillary absorption showed that specimens with 1% hydrogel content had higher absorption values compared to specimens with 0.24% 0.48% and 0% hydrogel content. Regarding the influence of the solution in the absorption test seawater showed a slower absorption rate compared to tap water and NaCl 3.5% solution. The results of the mortar healing capacity test in the form of crack observation showed that the specimen with the code REF H3 after undergoing wet-dry curing in seawater had the highest healing ratio with values for crack widths of 0.2 ndash 0.3 mm and 0.3 ndash 0.4 mm being 92.799% and 100% respectively. Another test the sealing test showed that specimens REF H1 REF H2 and REF H3 had the highest sealing efficiency after undergoing wet-dry curing in seawater with values of 100%. /p
| Item Type: | Thesis (Diploma) |
|---|---|
| Subjects: | G Geography. Anthropology. Recreation > G Geography (General) G Geography. Anthropology. Recreation > GE Environmental Sciences |
| Divisions: | Fakultas Teknik (FT) > Departemen Teknik Sipil (TS) > S1 Teknik Sipil |
| Depositing User: | library UM |
| Date Deposited: | 11 Sep 2025 04:29 |
| Last Modified: | 06 Apr 2026 01:22 |
| URI: | http://repository.um.ac.id/id/eprint/425985 |
Actions (login required)
 |
View Item |