岭澳核电站混凝土强度试验及分析

岭澳核电站混凝土试验时采用法国标准,混凝土强度偏低（σ^-25≥1.1σn),而改用混凝土试配强度等于2.33倍标准差加标称强度,其保证率为99%,与生产检查试验的99.5%相吻合,证明试配是成功的。施工时混凝土控制得较好,生产水平较高,达到了我国或美国优或良的标准。

CONCRETE STRENGTHEXPERIMENT AND ANALYSIS OF LING

When France standard was adopted to experimenting on concrete mixing rate in Ling ao’ nuclear power plant,the strength of ′ 28>1.1σ n seemed too low.While adopting the strength of 2.33 times standard difference plus nominated strength, the securing rate was up to 99％ ,which was commensurate with the testing rate of 99.5％ .It proved a successful experimenting on concrete mixing rate. Concrete was well controlled in the construction and met grade A or B of both Chinese and American standard.