CAJ | 학술논문

吉林省大安市是松嫩平原土壤盐渍化最严重的地区之一,境内土壤及地表水中易溶盐分量以HCO3-（CO23-）、Na＋含量较多,其次为Cl^-、SO4^2-,以及少量的Mg^2＋、Ca^2＋、K^＋等。为了研究不同易溶盐在干湿交替作用下对混凝土耐久性的影响,在复合盐与干湿交替双重因素作用下混凝土耐久性试验研究的基础上,根据复合盐—干湿循环试验中的基准混凝土配合比与质量分数为15%的复合盐溶液中易溶盐的类型和用量,分别配制了3种单盐溶液与清水,对混凝土进行单盐—干湿循环对比试验。结果表明,在干湿循环条件下,硫酸盐、氯盐与碳酸氢盐均对混凝土材料有较强的腐蚀性,各种有害盐对混凝土的侵蚀破坏作用造成的叠加效应,加剧了混凝土的腐蚀破坏。
길림성대안시시송눈평원토양염지화최엄중적지구지일,경내토양급지표수중역용염분량이HCO3-（CO23-）、Na＋함량교다,기차위Cl^-、SO4^2-,이급소량적Mg^2＋、Ca^2＋、K^＋등。위료연구불동역용염재간습교체작용하대혼응토내구성적영향,재복합염여간습교체쌍중인소작용하혼응토내구성시험연구적기출상,근거복합염—간습순배시험중적기준혼응토배합비여질량분수위15%적복합염용액중역용염적류형화용량,분별배제료3충단염용액여청수,대혼응토진행단염—간습순배대비시험。결과표명,재간습순배조건하,류산염、록염여탄산경염균대혼응토재료유교강적부식성,각충유해염대혼응토적침식파배작용조성적첩가효응,가극료혼응토적부식파배。
Da＇an city in Jilin province is one of the most serious region where has the most serious soil salinization in the Songnen plain. In the soil and surface water, the dissolved salt components HCO^-（CO3z-） and Na＋ are the most,followed by Cl^- and SO4^2-, and small amounts of Mg^2＋, Ca^2＋, K^＋ ,etc. In this paper, in order to study the influence on the durability of concrete by the different soluble salts under the condition of dry-wet cycles, and according to the dissolved salt type and dosage in the composite salt solution of 15~ ,we separate- ly compose three kinds of single salt solution and water to make tests on the concrete dry-wet cycle comparing. The results show that sulfate, chlorine salt and bicarbonate can cause corrosive action to concrete under the condition of dry-wet cycles, and the superimposition effects caused by each harmful salt can make the corrosive damage to the concreter more seriously.