CAJ | 학술논문

为了研究由硫酸盐侵蚀而导致的混凝土里表不同部位侵蚀的变化特征,利用傅里叶变换红外光谱定性地研究了在10％硫酸钠溶液中浸泡4年的混凝土试件内部的侵蚀产物分布规律.研究表明:在该类侵蚀介质的作用下,混凝土内主要侵蚀产物为石膏和钙矾石；在界面过渡区和水泥石基体中,石膏的含量沿着混凝士厚度方向减少,钙矾石增加；在同一厚度下,界面过渡区中钙矾石和氢氧化钙的含量高于水泥石基体中钙矾石和氢氧化钙的含量.
위료연구유류산염침식이도치적혼응토리표불동부위침식적변화특정,이용부리협변환홍외광보정성지연구료재10％류산납용액중침포4년적혼응토시건내부적침식산물분포규률.연구표명:재해류침식개질적작용하,혼응토내주요침식산물위석고화개반석；재계면과도구화수니석기체중,석고적함량연착혼응사후도방향감소,개반석증가；재동일후도하,계면과도구중개반석화경양화개적함량고우수니석기체중개반석화경양화개적함량.
This paper presented results from an investigation program that concrete was eroded by sodium sulfate solution by means of Fourier transform infrared spectrum (FT-IR).The results showed that the primary deterioration products of concrete suffered from sodium sulfate attack are gypsum and ettringite.In interfacial transition zone ( ITZ),the quantity of gypsum decrease along thickness direction while the quantity of ettringite increase.In paste matrix,the quantity of gypsum is less and less while the quantity of ettringite is more and more from enterior to interior.The quantities of ettringite in ITZ are more than that in paste matrix.