碳酸盐型复合防冻剂是利用苛性钾及苛性钠废液与二氧化碳混合生成的工业付产品——碳酸钾钠工业废料,研制成的新型防冻剂。一、碳酸盐防冻剂的配方设计碳酸盐中主要成份是碳酸钾、钠的混合物,碳酸钾是无机盐中(除氯化钙外)降低冰点效果最好的一种化合物,但单掺 K_2CO_3作为混凝土防冻剂时,有以下的弊病:首先初凝时间快,掺量越大则凝结时间快;其次据 Carbonate-based composite antifreeze is a new type of antifreeze developed from the industrial by-product of sodium potassium carbonate industrial waste produced by mixing caustic potash and caustic soda liquor with carbon dioxide. 1. Formulation of carbonate antifreeze The main component of carbonate is a mixture of potassium carbonate and sodium. Potassium carbonate is the best compound to reduce the freezing point in inorganic salt (except calcium chloride), but it is single-blended. When K_2CO_3 is used as concrete antifreeze, it has the following disadvantages: First, the initial setting time is fast, and the larger the dosage, the faster the setting time;