亚钠型混凝土防冻剂的改进与应用  

Improvement and application of sodium sulfite type concrete antifreeze

作　　者：付饶[1] 

机构地区：[1]长春工程学院国际教育学院,长春130012

出　　处：《福建建设科技》2015年第1期41-43,共3页Fujian Construction Science & Technology

摘　　要：为解决在东北、华北、西北地区寒冷季节早期混凝土的冻害问题,在通用的亚钠型混凝土防冻剂中引入少量的维生素C、维生素D、氟碳表面活性剂FN-3,加入到冬季施工的混凝土中,2h的流动度损失小于30%,混凝土的毛细通道显著减少,降低了混凝土的透水性,其抗渗和防冻性能明显提高。达到提高混凝土早期防冻能力,促进、优化早期混凝土浆体结构的形成,增大混凝土后期强度的目的。In order to solve the cold freezing problems of early age concrete at the cold season in the northeast, northwest an north of Chi- na, a small amount of vitamin C, vitamin D, fluorocarbon surfactantFN -3 were introduced in the sodium type concrete antifreeze and ap- plied to the winter construction of concrete. The fluidity loss is less than 30% within 2 hours. The capillary channel and the pervious of concrete significantly reduced. While the anti permeability and anti freeze properties improved obviously. This research reached the goal of improving the strength of concrete, promoting and optimizing the formation of early age concrete slurry structure and reinforcing later strength of the concrete.

关 键 词：亚钠型 混凝土防冻剂 改进 应用 

分 类 号：TU528.042.6[建筑科学—建筑技术科学]