CAJ | 학술논문

通过X衍射、扫描电镜等方法对高钙固硫灰及普通粉煤灰的化学成分、物相组成、颗粒形貌、物理性能等方面进行分析.结果表明,高钙固硫灰的CaO、烧失量、SO3含量较高,高钙固硫灰的主要晶相为石英、无水石膏、赤铁矿、游离氧化钙等,玻璃体含量较少,普通粉煤灰以玻璃体为主,晶相有莫来石和石英.扫描电镜观察,高钙固硫灰的颗粒表面较疏松,几乎没有球形颗粒,普通粉煤灰以球形为主,表面光滑.与普通粉煤灰相比,高钙固硫灰的细度较大,需水量较大,活性较差.
통과X연사、소묘전경등방법대고개고류회급보통분매회적화학성분、물상조성、과립형모、물이성능등방면진행분석.결과표명,고개고류회적CaO、소실량、SO3함량교고,고개고류회적주요정상위석영、무수석고、적철광、유리양화개등,파리체함량교소,보통분매회이파리체위주,정상유막래석화석영.소묘전경관찰,고개고류회적과립표면교소송,궤호몰유구형과립,보통분매회이구형위주,표면광활.여보통분매회상비,고개고류회적세도교대,수수량교대,활성교차.
The chemical composition, mineral composition, particle morphology and physical properties of high calcium solid sulphur ash and general fly ash are studied by XRD, SEM and other methods. The results show that the high calcium solid sulphur ash manifests as high content of CaO, LOI and SO3. The major minerals present in the high calcium solid sulphur ash are quartz, anhydrite, hematite, f-CaO and little glass phase, the main minerals of general fly ash are glass phase, mullite and quartz. Comparing with general fly ash, the fineness and water requirement of sold sulphur ash are higher , but the activity is lower than the general fly ash.