Experimental studies on sacrificial layer in conservation of earthen sites
| Autor: | Pei Qiangqiang, Qinglin Guo, Feng-Jie Li, Xudong Wang, Zhang Bo, Wenwu Chen |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Archeology
Natural materials Hemp fiber Materials Science (miscellaneous) 010401 analytical chemistry 02 engineering and technology Conservation Shrinkage rate engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Arid 0104 chemical sciences Permeability (earth sciences) Coating Chemistry (miscellaneous) engineering Environmental science Geotechnical engineering 0210 nano-technology Heat sensitivity General Economics Econometrics and Finance Spectroscopy |
| Zdroj: | Journal of Cultural Heritage. 41:74-83 |
| ISSN: | 1296-2074 |
| DOI: | 10.1016/j.culher.2019.07.003 |
| Popis: | According to the characteristics of earthen sites’ erosion and the existing environments of arid and semi-arid zones, this work comes up with the conception of sacrificial layer. Covering the surface of the earthen site with a mud coating layer, similar to the natural materials found at the site, it would provide a protective layer for exogenic forces to destroy, while preserving the earthen site. Experiments were carried out to separately test the shrinkage rate, heat sensitivity, color difference, mechanical properties, vapor permeability, wetting–drying cycle, and rainfall erosion by adding wheat chaff and hemp fibers with different proportions. Experimental results show that wheat chaff and hemp fibers are ideal modified materials for the sacrificial layer with good performance. The optimum proportion of hemp fiber, wheat chaff, and soil was 0.5:1.25:100. The sacrificial layer has broad application prospects to the surfaces of earthen sites in arid and semi-arid zones. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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