混凝土与水泥制品
混凝土與水泥製品
혼응토여수니제품
CHINA CONCRETE AND CEMENT PRODUCTS
2015年
4期
86-89
,共4页
混凝土%碳化%镁渣
混凝土%碳化%鎂渣
혼응토%탄화%미사
Concrete%Carbonization%Magnesium slag
为了实现合理利用粉煤灰、镁渣等工业废渣，提高混凝土抗碳化性能，以镁渣掺量、镁渣消解时间和粉煤灰掺量为因素，设计正交试验L9(34)方案及单因素试验方案，试验研究镁渣混凝土的碳化规律。试验表明，镁渣具有增加碱性储备和补偿收缩变形的双重效应，能显著提高C30混凝土的抗碳化性能，碳化深度与镁渣掺量呈幂指数关系，与碳化时间呈双曲线关系。镁渣和粉煤灰都是影响混凝土碳化性能的重要因素，镁渣消解时间的影响很小，是次要因素。就碳化而言，可以取消镁渣消解环节，简化镁渣混凝土的生产工艺。
為瞭實現閤理利用粉煤灰、鎂渣等工業廢渣，提高混凝土抗碳化性能，以鎂渣摻量、鎂渣消解時間和粉煤灰摻量為因素，設計正交試驗L9(34)方案及單因素試驗方案，試驗研究鎂渣混凝土的碳化規律。試驗錶明，鎂渣具有增加堿性儲備和補償收縮變形的雙重效應，能顯著提高C30混凝土的抗碳化性能，碳化深度與鎂渣摻量呈冪指數關繫，與碳化時間呈雙麯線關繫。鎂渣和粉煤灰都是影響混凝土碳化性能的重要因素，鎂渣消解時間的影響很小，是次要因素。就碳化而言，可以取消鎂渣消解環節，簡化鎂渣混凝土的生產工藝。
위료실현합리이용분매회、미사등공업폐사，제고혼응토항탄화성능，이미사참량、미사소해시간화분매회참량위인소，설계정교시험L9(34)방안급단인소시험방안，시험연구미사혼응토적탄화규률。시험표명，미사구유증가감성저비화보상수축변형적쌍중효응，능현저제고C30혼응토적항탄화성능，탄화심도여미사참량정멱지수관계，여탄화시간정쌍곡선관계。미사화분매회도시영향혼응토탄화성능적중요인소，미사소해시간적영향흔소，시차요인소。취탄화이언，가이취소미사소해배절，간화미사혼응토적생산공예。
In order to realize the reasonable utilization of industrial residue such as fly ash, magnesium slag and so on and enhance the carbonation performance of concrete, taking magnesium slag content, magnesium slag digestion time and fly ash content as factors, the orthogonal test L9 (34) and the single factor test scheme were designed to research the carbonization law of magnesium slag concrete. The result shows that: magnesium slag has double effects increasing alka-line reserve and compensating shrinkage deformation, and can significantly improve the carbonation performance of C30 concrete; the carbonation depth is the exponential relationship with magnesium slag content, the hyperbolic relationship with carbonization time. Magnesium slag and fly ash are important factors affecting carbonization performance of concrete. The magnesium slag digesting time which is a minor factor has little effect on carbonation. In terms of carbonization, mag-nesium slag digestion can be cancelled to simplify the production process of magnesium slag concrete.
