| Title |
A Study on the Humidity Control Performance of Hwang Toh |
| Authors |
Hwang Hey-Zoo ; Roh Tae-Hak ; Kang Nam-Yi |
| Keywords |
Cement ; Building Material ; Airtightness ; Hwang-toh ; Humidity Control Performance ; Air Permeability Performance |
| Abstract |
Now, we are using various building materials including cement, concrete, steel-frame, aluminum, lumber, and glass. These building materials are used for several places, including frames, the interior, and the exterior, according to each characteristic, and they are closely associated with our life. Because we spend most of our life indoors in daily life, we are influenced by interior building materials. And, recently, as the energy saving and the ventilation through machines and appliances are at issue, airtightness becomes important and so the interior is shut tightly more and more. As a result, the interior is contaminated by the substances which are noxious to the human body by being discharged from the building materials or the chemical goods used in construction work, so that such interior may have many bad effects on people. Thus, people are highly interested in environment-friendly building materials, whose typical example can be hwang-toh. Although hwang-toh has various performances including humidity control performance, air permeability performance, far-infrared radiation performance, and deodorization performance, the scientific basis to support these performances is insufficient. So, the purpose of this study is to examine humidity control performance and air permeability performance among the merits of hwang-toh in comparison with other materials.
According to the test results of this study, for humidity control performance, hwang-toh was 5.8 times, and hwang-toh cement was 5 times, and commercialized hwang-toh mixture was 2 times as excellent as cement mixture. Also, for air permeability performance, hwang-toh was 8.5 times, and hwang-toh cement was 5.5 times, and commercialized hwang-toh mixture was 3.5 times as excellent as cement mixture. In conclusion, the more the additive contents of hwang-toh increased, the more excellent the humidity control performance and the air permeability performance were. And, hwang-toh was sufficiently valuable as the contemporary building material. |