1.1本试验方法涵盖了确定化学外加剂对混凝土中金属腐蚀影响的程序。本试验方法可用于评估旨在抑制混凝土中钢筋的氯诱导腐蚀的材料。它还可用于评估外加剂在氯化物环境中的腐蚀性。 1.2以国际单位制表示的数值应视为标准值。括号中给出的值仅供参考。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 3.1本试验方法为预测混凝土中使用的外加剂的抑制或腐蚀性能提供了可靠的方法。 3.2本试验方法有助于混凝土中使用的缓蚀剂的开发研究。 3.3本试验方法已在其他地方使用，通过本试验方法测量的腐蚀与嵌入钢的腐蚀损伤之间具有良好的一致性( 1- 4. ). 5. 该试验方法可能无法正确地对不同缓蚀剂的性能进行排序，尤其是在小于40 mm（1.5 in.）的钢筋上的混凝土保护层或水灰比高于0.45。选择混凝土混合物比例和钢筋保护层，以加速氯化物进入。一些抑制剂可能会对这一过程产生影响，这可能会导致与实际使用中预期的结果不同的结果( 5. ).

1.1 This test method covers a procedure for determining the effects of chemical admixtures on the corrosion of metals in concrete. This test method can be used to evaluate materials intended to inhibit chloride-induced corrosion of steel in concrete. It can also be used to evaluate the corrosivity of admixtures in a chloride environment. 1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== 3.1 This test method provides a reliable means for predicting the inhibiting or corrosive properties of admixtures to be used in concrete. 3.2 This test method is useful for development studies of corrosion inhibitors to be used in concrete. 3.3 This test method has been used elsewhere with good agreement between corrosion as measured by this test method and corrosion damage on the embedded steel ( 1- 4 ). 5 This test method might not properly rank the performance of different corrosion inhibitors, especially at concrete covers over the steel less than 40 mm (1.5 in.) or water-to-cement ratios above 0.45. The concrete mixture proportions and cover over the steel are chosen to accelerate chloride ingress. Some inhibitors might have an effect on this process, which could lead to results that would differ from what would be expected in actual use ( 5 ).