勘察规范中水与土的苛性碱对混凝土腐蚀的性质与计算

勘察规范中苛性碱腐蚀与通常所说的苛性碱—集料反应腐蚀是不同的，后者是混凝土集料中苛性碱超标构成的腐蚀，与勘察无关。苛性碱腐蚀在规范中的指标是以OH

THE NATURE AND CALCULATIONOF CAUSTIC ALKALI IN WATER AND SOIL TO THE CORROSION OF CONCRETE IN THE GEOTECHNICALINVESTIGATION CODE

The caustic alkali corrosion stated in the geotechnical investigation code is different from the commonly said caustic alkali-aggregate reaction corrosion, the latter belongs to the corrosion formed from the overproof of caustic alkali in the concrete aggregate, and unrelated to the investigation work. In the said code, the caustic alkali corrosion is expressed by OH -, but in the analysis report for soluble salt in water or soil, the OH - can not represent the real content of caustic alkali in water or soil. So it is necessary to proceed the treatment and calculation of salt form presentation according to the analysis report, so as to obtain the real content of caustic alkali in water or soil.