건설구조물 상부의 단열은 에너지 절약 건설구조물에 있어서 중요한 요건 중 하나이다. 건설구조물 최상부는 단열성뿐만 아니라 방수성능도 중요하다. 이와 같은 이유로 단열성을 확보한 방수공법의 개발이 요구된다. 본 연구에서는 최근 일정 단열성능을 확보한 단열 보완형의 복합방수공법이 개발되어 해당 공법에 대한 단열성능을 평가하고자 하였다. 방수성 시험결과, 모든 시험체는 KS 표준 이상의 성능을보여주었다. 단열성 시험결과, 스티로폼 박스가 가장 높은 온도인 25.91℃, 버블시트 박스가 17.28℃, 단열시트 박스가 15.47℃, 단열보완형 방수시트가 24.11℃로 확인되었다. 시트 접합부의 열교현상을 관찰한 결과 열교현상은 발생하지 않았다. 단열보완형 복합방수공법은 단열성능을 확보하고 있는 것으로 판단된다.

Thermal spray coatings and organic coatings are often individually used in corrosion protection of steel structures. Duplex coating systems of thermally sprayed metal coating combination with organic coating represent a new generic type of coatings on offshore steel structures under the highly corrosive environments. In this study, weathering test were carried out on four types of duplex coated specimens; thermally sprayed metals of zinc, zinc-aluminum alloy, aluminum and aluminum-magnesium alloy in combination with painting of acrylic urethane. From the test results, weathering performance of the duplex coating systems were evaluated.

This research is to measure and analyze the thermal performance of the apartment structure and to evaluate and establish standards of thermal insulation defect in order to make the basic data necessary for determining the degree of the thermal performance degradation and for repairing and reinforcing the exterior wall of the existing apartment. Furthermore, it is to predict the part of occurrence of the thermal bridge and condensation at the apartment building structure. On the other one hand, it is also to analyze the degree of thermal insulation performance according to the standards of thermal insulation and elapsed time, through the analysis by the workability of concrete.

The energy consumption by buildings approximately reaches 25% of total korea energy consumption. The greatest part in the buildings of the energy consumption is building facade. but a few research projects on concrete comprising more than 70% of outsider of buildings has been tried. This research structural insulation concrete what improved insulation performance using insulation performance improve material

Deterioration of insulation and retrofitting existing buildings to make the data necessary for the insulation of the survey should precede. Measuring infrared (IR systems) using insulation on-site apartment Segmental analysis of the structure is to evaluate the let part. Temperature and temperature gradient by the degradation of the insulation of apartment structures can be evaluated.

공학적 방벽 중 완충재의 물리적 성능향상을 고찰하기 위하여 국내산 옥산 벤토나이트 원광을 사용하여 건조밀도(1.6, 1.8g/cm3), 수분함량(5, 9.4, 15, 20 wt%), 모래함량(0, 10, 20, 30 wt%)을 변화시켜 제작한 벤토나이트 블록의 열전도도를 측정하였다. 이 중, 수분 함량의 변화에 의한 열전도도 증가 효과가 가장 켰으며 특히, 수분 함량이 15 wt% 이상일 경우 건조밀도와 모래함량의 변화와 상관없이 1.0 W/mK 이상의 값을 나타내었다. 따라서 국내의 옥산 벤토나이트 원광을 완충재의 원료로 사용할 경우, 벤토나이트 블록의 제작 용이성과 열전도 증가의 효율성을 고려하였을 때 건조밀도 1.6g/cm3, 모래함량 10~30 wt%, 함수량 15 wt%로 벤토나이트 블록을 제조하는 것이 가장 효율적인 것으로 제안될 수 있다.

A Numerical simulation on the thermal flow performance was carried out to propose the incinerator type for the domestic refuses and to investigate the design factor and operating conditions. The SSTI(Standard Stoker Type Incinerator) proposed in this study was modified from the type with central flow. It has the characteristics of good mixing between refuse and hot combustion gas in primary combustion chamber and between unburned gas inflowing and secondary air jet in secondary chamber. By predictive results, the SSTI was no recirculation zone in secondary chamber so that mixing time was increased with high residence time. It has good characteristics of combustion and low emission. Parametric screening studies have been understood with phenomenon of combustion in incinerator.