CAJ | 학술논문

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。
위해결재동북、화북、서북지구한랭계절조기혼응토적동해문제，재통용적아납형혼응토방동제중인입소량적유생소C、유생소D、불탄표면활성제FN-3，가입도동계시공적혼응토중，2h적류동도손실소우30％，혼응토적모세통도현저감소，강저료혼응토적투수성，기항삼화방동성능명현제고。체도제고혼응토조기방동능력，촉진、우화조기혼응토장체결구적형성，증대혼응토후기강도적목적。
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 .