Modification of soil structure of sand tailings: 2. effect of silt, sand and clay contents on aggregate development using organic amendments
The effect of skeletal materials (silt and very fine sand) and clay on aggregate formation and stabilization of organically amended sand tailings (99% sand) was investigated. In this experiment, sand tailings were mixed with different proportions ofslime (slime contains 37% silt + very fine sand a...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universiti Putra Malaysia Press
1996
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/3590/ http://psasir.upm.edu.my/id/eprint/3590/1/Modification_of_Soil_Structure_of_Sand_Tailings.pdf |
| _version_ | 1848839571690749952 |
|---|---|
| author | A. M., Mokhtarudin Subari, Zulkifli |
| author_facet | A. M., Mokhtarudin Subari, Zulkifli |
| author_sort | A. M., Mokhtarudin |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The effect of skeletal materials (silt and very fine sand) and clay on aggregate formation and stabilization of
organically amended sand tailings (99% sand) was investigated. In this experiment, sand tailings were mixed with
different proportions ofslime (slime contains 37% silt + very fine sand and 33% clay) and then treated with palm
oil mill effluent (POME) cake at the rate of 10.5 g of POME cake per 1200 g of sand-slime mixture. The
mixtures were incubatedfor 2 weeks and then air-dried. The extent of aggregation of the samples was determined by
dry sieving, and the aggregate stability by wet sieving. The addition of silt + very fine sand and clay improved
aggregation and aggregate stability of the sandy soils. The optimum amount of clay required to achieve a good
aggregation and aggregate stability for the amount of organic matter added is 25%, where the increase in stability
was seven-fold over the control. With slime, which contains 33% clay, this amount of clay can be achieved from a
mixture of 75% slime + 25% sand tailings. This mixture contains 32% skeletal materials. |
| first_indexed | 2025-11-15T07:13:34Z |
| format | Article |
| id | upm-3590 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:13:34Z |
| publishDate | 1996 |
| publisher | Universiti Putra Malaysia Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-35902015-09-04T08:50:53Z http://psasir.upm.edu.my/id/eprint/3590/ Modification of soil structure of sand tailings: 2. effect of silt, sand and clay contents on aggregate development using organic amendments A. M., Mokhtarudin Subari, Zulkifli The effect of skeletal materials (silt and very fine sand) and clay on aggregate formation and stabilization of organically amended sand tailings (99% sand) was investigated. In this experiment, sand tailings were mixed with different proportions ofslime (slime contains 37% silt + very fine sand and 33% clay) and then treated with palm oil mill effluent (POME) cake at the rate of 10.5 g of POME cake per 1200 g of sand-slime mixture. The mixtures were incubatedfor 2 weeks and then air-dried. The extent of aggregation of the samples was determined by dry sieving, and the aggregate stability by wet sieving. The addition of silt + very fine sand and clay improved aggregation and aggregate stability of the sandy soils. The optimum amount of clay required to achieve a good aggregation and aggregate stability for the amount of organic matter added is 25%, where the increase in stability was seven-fold over the control. With slime, which contains 33% clay, this amount of clay can be achieved from a mixture of 75% slime + 25% sand tailings. This mixture contains 32% skeletal materials. Universiti Putra Malaysia Press 1996 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/3590/1/Modification_of_Soil_Structure_of_Sand_Tailings.pdf A. M., Mokhtarudin and Subari, Zulkifli (1996) Modification of soil structure of sand tailings: 2. effect of silt, sand and clay contents on aggregate development using organic amendments. Pertanika Journal of Tropical Agricultural Science, 19 (2/3). pp. 137-142. ISSN 0126-6128 http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JTAS%20Vol.%2019%20(2&3)%20Dec.%201996/06%20JTAS%20Vol.19%20(23)%201996%20(Pg%20137-142).pdf |
| spellingShingle | A. M., Mokhtarudin Subari, Zulkifli Modification of soil structure of sand tailings: 2. effect of silt, sand and clay contents on aggregate development using organic amendments |
| title | Modification of soil structure of sand tailings: 2. effect of silt, sand and clay contents on aggregate development using organic amendments |
| title_full | Modification of soil structure of sand tailings: 2. effect of silt, sand and clay contents on aggregate development using organic amendments |
| title_fullStr | Modification of soil structure of sand tailings: 2. effect of silt, sand and clay contents on aggregate development using organic amendments |
| title_full_unstemmed | Modification of soil structure of sand tailings: 2. effect of silt, sand and clay contents on aggregate development using organic amendments |
| title_short | Modification of soil structure of sand tailings: 2. effect of silt, sand and clay contents on aggregate development using organic amendments |
| title_sort | modification of soil structure of sand tailings: 2. effect of silt, sand and clay contents on aggregate development using organic amendments |
| url | http://psasir.upm.edu.my/id/eprint/3590/ http://psasir.upm.edu.my/id/eprint/3590/ http://psasir.upm.edu.my/id/eprint/3590/1/Modification_of_Soil_Structure_of_Sand_Tailings.pdf |