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Efficiency of Composite Binders with Antifreezing Agents

机译：复合粘合剂与防冻剂的效率

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One of the non-heating methods of cold-weather concreting is using concretes hardening at negative temperatures. This method consists in using chemical additives which reduce the freezing temperature of the liquid phase and provide for concrete hardening at negative temperatures. The non-heating cold-weather concreting, due to antifreezing agents, allows saving heat and electric energy at the more flexible work performance technology. At selecting the antifreezing components, the possibility of concreting at temperatures up to minus 20 °C and combination with a plasticizer contained in the composite binder were taken into account. The optimal proportions of antifreezing and complex agents produced by MC-Bauchemie Russia for fine-grained concretes were determined. So, the introduction of antifreezing and complex agents allows obtaining a structure of composite characteristic for cement stone in the conditions of below zero temperatures at using different binders; the hydration of such composite proceeded naturally. Low-water-demand binders (LWDB) based composites are characterized by a higher density and homogeneity due to a high dispersity of a binder and its complicated surface providing for a lot of crystallization centers. LWDB contains small pores keeping water in a liquid form and promoting a more complete hydration process.
机译：冷天气混凝土的非加热方法之一是在负温度下使用混凝土硬化。该方法包括使用减少液相冷冻温度的化学添加剂，并在负温度下提供混凝土硬化。由于防冻剂，非加热防寒般的混凝土允许在更灵活的工作性能技术下节省热电能。在选择防冻组分时，考虑在高达20℃的温度下混凝土的可能性，并考虑到包含在复合粘合剂中包含的增塑剂的组合。确定了MC-Bauchemie俄罗斯用于细粒粒细胞的抗冻剂和复合剂的最佳比例。因此，防冻剂和复合剂的引入允许在使用不同粘合剂的低温温度的条件下获得水泥石的复合特性的结构;这种复合材料的水合自然进行。基于低水需求粘合剂（LWDB）的复合材料的特征在于由于粘合剂的高分子和其复杂的表面提供了较高的密度和均匀性，并且其复杂的表面提供了许多结晶中心。 LWDB含有小孔，以液体形式保持水并促进更完整的水合过程。

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