| 表层处理砂浆中预埋钢筋的腐蚀行为(英文) |
| |
| 引用本文： | 宋学锋,魏俊发,何廷树,李国新.表层处理砂浆中预埋钢筋的腐蚀行为(英文)[J].硅酸盐学报,2009,37(4). |
| |
| 作者姓名： | 宋学锋 魏俊发 何廷树 李国新 |
| |
| 作者单位： | 1. 西安建筑科技大学材料科学与工程学院,西安,710055
2. 陕西师范大学化学与材料学院,西安,710062 |
| |
| 基金项目： | 陕西省教育厅自然科学基金 |
| |
| 摘 要： | 利用有机硅浸渍剂(alkyl-alkoxyl silane,AAS)和原位合成高吸水性树脂(supcr-absorbent resin,SAR)分别对含有预埋钢筋的砂浆试样进行表层处理,并将处理前后的砂浆试样浸没于3.5%NaCl溶液中进行了加速腐蚀试验.测试了不同腐蚀龄期内的自然腐蚀电位和极化电流密度.结果表明:存在于砂浆表层的AAS斥水膜层和SAR吸水膨胀凝胶能够显著降低Cl-在砂浆基材中的渗透性;处理砂浆试样中预埋钢筋在相同腐蚀时间内的自然腐蚀电位较未处理试样显著增高,而相应的腐蚀电流密度显著降低;SAR和AAS作为表层处理材料均能延缓砂浆中预埋钢筋的腐蚀过程,且SAR的延缓效果更佳.
|
| 关 键 词： | 钢筋腐蚀 表层处理 高吸水性树脂 氯离子渗透 |
CORROSION BEHAVIOR OF STEEL REINFORCEMENT EMBEDDED IN CEMENT MORTAR WITH SURFACE TREATMENT |
| |
| SONG Xuefeng,WEI Junfa,HE Tingshu,LI Guoxin.CORROSION BEHAVIOR OF STEEL REINFORCEMENT EMBEDDED IN CEMENT MORTAR WITH SURFACE TREATMENT[J].Journal of The Chinese Ceramic Society,2009,37(4). |
| |
| Authors: | SONG Xuefeng WEI Junfa HE Tingshu LI Guoxin |
| |
| Affiliation: | SONG Xuefeng1,WEI Junfa2,HE Tingshu1,LI Guoxin1 |
| |
| Abstract: | The surface of cement mortar was treated with an impregnating agent named alkyl-alkoxyl silane(AAS) and a super-absorbent resin(SAR) synthesized in situ,respectively. The corrosion risk and the current density of steel reinforcement in the treated cement mortar immersed at sodium chloride solution of 3.5% were evaluated by corrosion potential monitoring and linear polarization resistance(LPR) techniques. The results show that the water-repellent layer of the AAS and the swelling hydrogel of the SAR as a pro... |
| |
| Keywords: | reinforcing steel corrosion surface treatment super-absorbent resin chlorite ion permeability |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
