CAJ | 학술논문

从需水量比、细度、烧失量、颗粒形貌及吸附性能等方面分析了粉煤灰对水泥基材料流动性能的影响规律。结果表明，粉煤灰需水量比与水泥净浆流动性能相关性较差，目前采用需水量比来评价其在水泥基材料中流动性能的方法可靠性较低；粉煤灰颗粒形貌对其水泥净浆流动性能影响显著，当疏松多孔、层状结构颗粒较多时，其对减水剂吸附量较高且对水泥净浆流动性能降低明显；在分析初始流动度、减水剂种类等实验参数对水泥基材料流动性能影响的基础上，提出了粉煤灰性能检测的有效方法。
종수수량비、세도、소실량、과립형모급흡부성능등방면분석료분매회대수니기재료류동성능적영향규률。결과표명，분매회수수량비여수니정장류동성능상관성교차，목전채용수수량비래평개기재수니기재료중류동성능적방법가고성교저；분매회과립형모대기수니정장류동성능영향현저，당소송다공、층상결구과립교다시，기대감수제흡부량교고차대수니정장류동성능강저명현；재분석초시류동도、감수제충류등실험삼수대수니기재료류동성능영향적기출상，제출료분매회성능검측적유효방법。
The influencing factors of the fluidity and appraising means for fly ash are studied in terms of water de-mand ratio, fineness, fire loss volume,morphological and adsorption properties. The results show that the fluidity of differ-ent fly ash is weakly correlated with water demand ratio, which has low reliability to evaluate the fluidity of fly ash. The morphological and adsorption properties of fly ash have strong influence on its flow characteristics by less spherical parti-cles, more loose texture and porous. The measures to evaluate the fluidity of fly ash are proposed, which have the fast and accurate merit under site situation.