| Title |
Evaluation of Physiochemical Properties of Artificial Lightweight Soil Aggregates for Vegetation Produced from Hwang-toh Foamed Concrete |
| Authors |
Hwang, In-Hyuk ; Lee, Kyung-Ho ; Yang, Keun-Hyeok |
| DOI |
http://dx.doi.org/10.5659/JAIK_SC.2016.32.10.23 |
| Keywords |
Vegetation ; Artificial soil aggregate ; Foamed concrete ; Hwang-toh ; Physiochemical property |
| Abstract |
This study examined the practical application of cement foamed concrete with natural hwang-toh to develop artificial soil aggregates for vegetation. The soil aggregates with the particle size between 1 and 10 mm were produced from the fragmentation of the foamed concrete. The physiochemical properties, including apparent density, pH value, particle distribution, coefficient of permeability, EC, CEC, C/N and total amount of organic matter, of the produced soil aggregates were tested and compared with the requirements for vegetation recommended in the landscape specification. The produced artificial soil aggregates achieved the apparent density, coefficient of permeability, and CEC value satisfying the requirements of the landscape specification, whereas pH, EC, C/N values, and total amount of organic matter of the soil aggregates did not satisfy the specification requirements. To utilize the foamed concrete as soil aggregates for vegetation, the additional approaches such as compulsory neutralization and the addition of organic fertilizers would be required for appropriate values of EC, CEC, and C/N. |