Method of producing environmental load reduction type anti-freeze agent for concrete

摘要

PURPOSE: Provided are high quality cold resistant materials which have environmental affinity, promotion of concrete setting, lowering of freezing temperature by mixing waste antifreezing solution, nitrites and fluidifying agent. CONSTITUTION: The cold resistant materials applied to winter concreting in construction fields are prepared by mixing waste antifreezing solution, water, cold resistant materials and fluidifying agent in a ratio of 1 : 1-2 : 0.5-1.5 : 0.1-0.5, where the cold resistant materials are nitrites, and the fluidifying agent is melamine-based materials.