Chloride-based deicing materials have been reported as the major culprit behind degradation of performance of structures such as surface deterioration and steel corrosion, leading to active researches on development of eco-friendly deicing materials as countermeasures for such issues. However, these eco-friendly deicing materials suffer the issue of poor economic feasibility compared to existing chloride-based deicing material. In order to secure economic feasibility of eco-friendly deicing materials, this research has developed a new eco-friendly deicing material with calcium-based industrial byproducts and assessed its snow-removing performance.

The development of functional finishes for the improvement of indoor air quality is one of important issues in the fieldof building materials. Indoor air quality can be affected by gases, particulates, microbial contaminants or any mass thatcan induce adverse health conditions. The purpose of this study is to develop eco-friendly internal material of acrylicemulsion mortars using light-weight aggregate carrier which contains pyroligneous liquid. Four types of light-weightaggregates (perlite, vermiculite, charcoal and zeolite) those are functionally used in interior finishing materials are selectedand the properties such as flowability, adhesion, water absorption coefficient, crack and impact resistance are evaluatedin accordance with KS F 4715. As a result, the properties of acrylic emulsion mortars using light-weight carrier in thisstudy are satisfied with KS requirements. Among the four types of mortars with light-weight carrier, properties of acrylicemulsion mortars using zeolite carrier is more excellent than those of other light-weight carriers.