公开(公告)号：WO1993012052A1

公开(公告)日：1993-06-24

申请号：PCT/GB1992002345

申请日：1992-12-17

Applicant: ASTON MATERIAL SERVICES LIMITED ,  PAGE, Christopher, Lyndon

Inventor： ASTON MATERIAL SERVICES LIMITED

IPC: C04B41/60

CPC classification number: C04B41/0018 ,  C04B22/08 ,  C04B41/5009 ,  C04B2103/0008 ,  C04B2111/2023 ,  C04B2111/26 ,  C04B2111/72 ,  C23F11/182 ,  C04B41/4556 ,  C04B41/53

Abstract: This invention relates to a method of inhibiting alkali-silica or alkali-aggregate reactions (AAR/ASR) in concrete structures by introducing lithium compounds or the like in conjunction with conventional techniques for the treatment of steel reinforcement corrosion. It is also proposed to provide lithium compounds in repair concretes, grouts or mortars and use the difference in concentration between the article under repair and the repair material to introduce the lithium ions into the concrete under repair, once again inhibiting AAR/ASR reactions.

Abstract translation: 本发明涉及通过引入锂化合物等结合传统技术处理钢筋腐蚀而在混凝土结构中抑制碱二氧化硅或碱 - 骨料反应（AAR / ASR）的方法。 还提出在修补混凝土，水泥浆或砂浆中提供锂化合物，并使用修补物品与修复材料之间的浓度差异将锂离子引入混凝土中进行修复，再次抑制AAR / ASR反应。

公开(公告)号：WO1994029496A1

公开(公告)日：1994-12-22

申请号：PCT/GB1994001224

申请日：1994-06-06

Applicant: ASTON MATERIAL SERVICES LIMITED ,  PAGE, Christopher, Lyndon

Inventor： ASTON MATERIAL SERVICES LIMITED

IPC: C23F13/02

CPC classification number: C23F13/02 ,  C23F13/06 ,  C23F13/14 ,  C23F2201/02 ,  C23F2213/22

Abstract: Reinforcement in concrete (1) is cathodically protected by galvanically connecting a sacrificial anode (3), such as a zinc or zinc alloy anode, to the reinforcement (2), and contacting the anode with an electrolyte solution having a pH which is maintained sufficiently high for corrosion of the anode to occur, and for passive film formation on the anode to be avoided. The pH of the electrolyte is preferably at least 0.2 units, more preferably from 0.5 units to more than 1.0 units above the pH value at which passivity of the anode would occur. The electrolyte may be for example sodium hydroxide or potassium hydroxide but is preferably lithium hydroxide which also acts as an alkali-silica reaction inhibitor.

Abstract translation: 在混凝土（1）中的增强物通过将诸如锌或锌合金阳极的牺牲阳极（3）电镀连接到增强材料（2）而阴极保护，并使阳极与具有足够的pH的电解液接触 阳极发生腐蚀性高，要避免在阳极上形成钝化膜。 电解质的pH优选在阳极的无源发生的pH值以上至少0.2单位，更优选为0.5单位至大于1.0单位。 电解质可以是例如氢氧化钠或氢氧化钾，但优选也用作碱 - 二氧化硅反应抑制剂的氢氧化锂。