The purpose of this study was to develope the environmentally favorable method of roller compacted soil concrete pavement using industrial waste red mud. Red mud was the major solid waste produced in the process of alumina extraction from bauxite(Bayer process). For recycling purpose, red mud was treated and applied to use as concrete admixtures. To this end, laboratory test such as compressive strength of soil concrete, and field test such as construction characteristics of soil concrete pavement, had been conducted. From the study results, the compressive strength of soil concrete was strongly related to its matrix proportion and compaction energy. The optimum mix proportion was comprised of cement 300 kg/m3, water 110 kg/m3, fine aggregate 600 kg/m3, course aggregate 1400 kg/m3, red mud admixture 50 kg/m3 and compaction energy above 2.86 cm-kgf/cm3. The 7th-day and 28th-day mean compressive strength of soil concrete were 43.8 MPa and 53.3 MPa each under the optimum condition. Pavement application of soil concrete using red mud admixture indicated that the proposed method was simple in case of construction and showed a good surface texture.

상추의 포장 방법 및 저장 온도가 저장성에 미치는 영향을 분석하기 위하여, 저장중 감모율, 외관변화, 색상차, 안토시아닌 및 크로로필의 색소함량, 수분 함량을 측정하였다. 중량감모는 저온이라도 무포장(대조구)에서 급격히 일어났으며, 상온에서 저장할 경우, 유공 필름 순으로 중량감모가 나타났으며 LDPE와 PP 필름종류에 따라서는 30일간 저장하여도 차이가 크게 나타나지 않았다. 외관변화도 감모율과 비슷한 경향으로 대조구를 제외하면 온도, 천공여부

부추저장 중 포장재별 중량감소는 LDPE, PP 및 HDPE film처리가 포장재간 큰차이 없이 1% 미만의 매우 작은 감소를 보였으나, 무포장은 저장기간이 경과할수록 감소율이 현저히 증가하였다. 부추즙액의 당도는 입고시 6.0 Brix에서 무포장 2주째에 4.6 Brix로 크게 감소되었으며, LDPE film등 포장재처리는 밀봉처리에서 4.9-5.9 Brix로 감소폭이 적었고, 탈기처리시에는 4.5-4.7 Brix로 감소폭이 다소 큰 경향이었다