本技术委员会报告的目的是提供防腐外加剂的最新信息。其目的是为规范制定者、设计师和腐蚀控制人员提供信息，以控制使用防腐外加剂的水硬性水泥混凝土中常规钢筋的腐蚀。本报告描述了几种用作防腐外加剂的材料，它们的选择和评估，它们与新拌混凝土的配比，以及它们对新拌混凝土和硬化/硬化混凝土的影响。 缓蚀外加剂可能有助于延迟腐蚀开始，延长腐蚀传播的时间间隔。然而，混凝土中钢筋的腐蚀取决于除存在缓蚀外加剂之外的因素，包括使用环境、混凝土质量、结构的环境暴露、形成和存在 裂缝、钢筋保护层和其他因素的影响。本报告仅涵盖钢筋混凝土中使用的混合缓蚀剂。 硬化混凝土上使用的迁移型缓蚀剂和其他缓蚀物质超出了本文件的范围。

The purpose of this technical committee report is to present state of the art information on corrosion inhibiting admixtures. It is intended to provide specifiers, designers, and corrosion control personnel information to control the corrosion of conventional reinforcing steel in hydraulic cement concrete using corrosion inhibiting admixtures.This report describes several types of materials used as corrosion inhibiting admixtures, their selection and evaluation, their proportioning into freshly mixed concrete, and their effects on fresh and hardening/hardened concrete. Corrosion inhibiting admixtures may help delay corrosion initiation and extend the interval of corrosion propagation. However, the corrosion of reinforcing steel in concrete depends on factors beyond the presence of corrosion inhibiting admixtures, including the service environment, the quality of the concrete, the environmental exposure of the structure, the formation and presence of cracks, the cover of the reinforcing steel, and other factors.This report covers only admixed corrosion inhibitors used in reinforced concrete. Migrating corrosion inhibitors applied on hardened concrete and other corrosion inhibiting substances are beyond the scope of this document.