• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2022.11a
• /
• pp.27-28
• /
• 2022

In this study, the mechanical properties of resource-recycling concrete containing concrete sludge waste as main materials was compared depending on whether supercritical CO2 curing was applied for the realization of CCU technology. After supercritical CO2 curing, the compressive strength of the steam-cured specimen was lowered, but it was confirmed that the compressive strength of the underwater-cured specimen was improved.

• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2021.11a
• /
• pp.118-119
• /
• 2021

In this study, we confirmed the basic characteristics of paste and mortar 1:1, 1:2, 1:3 composition using concrete sludge solid content for the purpose of developing a resource-recycling cement secondary products. The 1:2 mortar formulation showed the best compressive strength. The steam curing strength is superior in the order of C20, BS40, BS20 and Control. it is judged that the FA combination is not suitable.

• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2015.11a
• /
• pp.105-106
• /
• 2015

With an increase of concrete buildings as result of rapid industrialization, Remicon sludge, which is a strong alkaline construction waste, should be neutralized to prevent damage to a natural environment, and the cost of the neutralization processing is increasing as well. Accordingly, this study investigates the mechanical properties of cementless concrete which is processed with recycled water and industrial byproducts in order to determine the possibility of re-using sludge, recycled sand, and gravel which are contained in recycled water.