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本文简要介绍埋藏在我国26个试验站的18种混凝土及钢筋混凝土材料腐蚀情况的实测结果。取得了二万多个数据,经复核审查数据可靠。在中、碱性土壤中埋设35年的腐蚀数据和酸性土壤中1、3、5年的腐蚀数据,在我国还是首次获得。这对我国基本建设具有重要意义。在此基础上,总结出不同混凝土在不同土壤中的腐蚀规律、钢筋锈蚀规律、主要影响因素、以及硫酸盐对混凝土强度影响等等。这对建立和发展我国混凝土材料环境科学,指导不同混凝土材料的合理使用具有重要意义。
This article briefly introduces the actual measurement results of 18 kinds of concrete and reinforced concrete materials buried in 26 experimental stations in China. More than 20,000 data have been obtained, and the review review data is reliable. 35 years of corrosion data buried in medium and alkaline soils, and 1, 3, and 5 years of corrosion data in acidic soils were obtained for the first time in China. This is of great significance to China’s basic construction. On this basis, the corrosion laws of different concretes in different soils, corrosion rules of steel bars, main influencing factors, and the influence of sulfates on the strength of concrete were summarized. This is of great significance for establishing and developing the environmental science of concrete materials in China and guiding the rational use of different concrete materials.