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一、混凝土碳化检查情况三十多年来,我省共修建大型水库15座,中型水库90座,由于大都在山区和丘陵区,水质污染问题不太突出,水下混凝土碳化深度又极小,为此我们重点检查了水上部分。检查方法采取盼酞指示法,即1%酚酞溶解于70乙基酒精配成的溶液,测定混凝土碳化深度。检查程序是,在混凝土表面凿孔3—5厘米见方(深度视混凝土碳化深度而定,由浅至深),吹去孔内灰渣,用毛笔蘸1%浓度的酚酞酒
First, the concrete carbonation of the situation Over the past 30 years, the province built a total of 15 large reservoirs, medium-sized reservoirs 90, mostly in the mountains and hilly areas, water pollution is less prominent, the depth of underwater carbonation and tiny, To this end, we focused on checking the water section. Inspection method to take phthalate indication, that is, 1% phenolphthalein dissolved in 70 ethyl alcohol solution, measured concrete carbonation depth. Check the procedure is to dig holes in the concrete surface 3-5 cm square (depending on the depth of concrete carbonation depth, from shallow to deep), blown to the hole ash, with a brush dipped in 1% concentration of phenolphthalein