CAJ | 학술논문

文章结合南京纬三路过江通道工程实例，针对各种矿物掺合料参数影响下的钢筋混凝土管片，进行了耐久性试验研究。结果表明：（1）在相同的水胶比情况下，碳化深度随着碳化龄期的增加而增大，但每个龄期之间的碳化深度增加的速率较慢，总体的碳化深度较小；（2）在相同掺合料总掺量条件下，水胶比越大，混凝土碳化深度越大；（3）在相同水胶比条件下，双掺粉煤灰和矿粉时，掺合料总掺量越大，混凝土碳化深度越大；（4）双掺粉煤灰和矿粉时，在掺合料总掺量以及水胶比相同条件下，随着粉煤灰的比例增大、矿粉掺量比例减少，混凝土碳化深度增大。该试验成果对纬三路盾构隧道的管片结构耐久性设计提供了依据。
문장결합남경위삼로과강통도공정실례，침대각충광물참합료삼수영향하적강근혼응토관편，진행료내구성시험연구。결과표명：（1）재상동적수효비정황하，탄화심도수착탄화령기적증가이증대，단매개령기지간적탄화심도증가적속솔교만，총체적탄화심도교소；（2）재상동참합료총참량조건하，수효비월대，혼응토탄화심도월대；（3）재상동수효비조건하，쌍참분매회화광분시，참합료총참량월대，혼응토탄화심도월대；（4）쌍참분매회화광분시，재참합료총참량이급수효비상동조건하，수착분매회적비례증대、광분참량비례감소，혼응토탄화심도증대。해시험성과대위삼로순구수도적관편결구내구성설계제공료의거。
Usingthe Nanjing Weisan Road river-crossing tunnel as an example, a durability test of reinforced concrete segments was carried out considering the effects of different mineral additive parameters, with the results showing that:1) the carbonation depth increases with an increase of carbonization age under the same water/cement ratio, for which the increment speed at each age is slow and the total carbonation depth is small; 2) the carbonation depth increases with an increase of the water/cement ratio under the same additive amount; 3) the carbonation depth increases with an increased additive amount under the same water/cement ratio when both fly ash and mineral powder are added; and 4) the carbonation depth increases with an increase of fly ash and a decrease of mineral powder under the same additive amount and water/cement ratio when both fly ash and mineral powder are added.