【摘要】：現代工業(yè)化生產中,酸性介質對混凝土結構的腐蝕程度十分嚴重和劇烈。以鹽酸和硫酸作為酸性介質,開展p H值為1的酸性溶液條件下,試樣外觀、抗壓強度、質量、強度退化深度等隨腐蝕時間變化的耐酸腐蝕試驗。試驗結果表明:(1)相同濃度的酸性溶液,鹽酸對混凝土的外觀腐蝕性大于硫酸;(2)隨腐蝕時間的增加,試樣抗壓強度和質量均呈減小趨勢,硫酸腐蝕下的試樣質量變化并不明顯;(3)隨腐蝕時間的增加,試樣強度退化深度逐漸增加,并在腐蝕期120 d后有明顯突增。
[Abstract]:In modern industrial production, the corrosion degree of acid medium to concrete structure is very serious and violent. Using hydrochloric acid and sulfuric acid as acid medium, the acid-resistant corrosion tests were carried out with pH value of 1 in acidic solution, such as the appearance, compressive strength, mass and strength degradation depth of the sample varying with the corrosion time. The experimental results show that: (1) the corrosion of hydrochloric acid on the appearance of concrete is greater than that of sulfuric acid with the same concentration of acidic solution; (2) with the increase of corrosion time, the compressive strength and quality of the sample decrease, but the quality of the sample under sulfuric acid corrosion does not change obviously; (3) with the increase of corrosion time, the strength degradation depth of the specimen increases gradually, and it increases obviously after 120 days of corrosion period.
【作者單位】： 國家核電山東電力工程咨詢院有限公司;山東正元建設工程有限責任公司;中國礦業(yè)大學力學與建筑工程學院江蘇省土木工程環(huán)境災變與結構可靠性重點實驗室;
【基金】：國家自然科學基金項目(51178455) 國家“863”計劃課題(2012AA06A402)
【分類號】：TU528

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