สัมประสิทธิ์การนําความร้อนของอิฐทนไฟกำลังรับแรงอัดสูง

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Watanapa, A.;Ubolsook, P.;Sae-heng Pisitsungkakarn, S.

ปีที่เผยแพร่ (ค.ศ.): 2014

วารสาร: Ladkrabang Engineering Journal (0125-1724)

Volume number: 31

Issue number: 2

หน้าแรก: 25

หน้าสุดท้าย: 30

นอก: 0125-1724

บทคัดย่อ

The objective of this research is to investigate the physical properties of high compressive strength fire brick and the coefficient of thermal conductivity. To be useful for the development of high compressive strength fire brick, there was suitable for use in different types. The experiment of the high compressive strength brick made out of alumina and rice husk ash with the following ratios: 40:60, 50:40, 60:40, 70:30 and 80:20, with 10% or 15% of sodium silicate according to weight. The burning temperature was set at 1000ฐC and 1200ฐC. It was found that, the density was inversely proportional to the ratio of rice husk ash but the density was increased by sodium silicate. Compressive strength was inversely proportional to the ratio of rice husk ash and sodium silicate. However, the compressive strength was increased when burned at high temperature. The water absorption was proportional to the ratio of rice husk ash. However, the water absorption was decreased when increasing sodium silicate. The shrinkage was increased proportional to rice husk ash content and the burning temperature but it was inversely proportional to sodium silicate content. As for thermal conductivity, the brick with the ratio of 70:30 with 10% of sodium silicate burned with 1200ฐC had the lowest thermal conductivity which is three times lower than other research. It showed that this brick gave a good insulation.

คำสำคัญ

Fire brick, Alumina, Sodium Silicate, Thermal Conductivity