工程科学学报2011，Vol.33Issue(5)：606-613,8.
矿渣-粉煤灰基高性能混凝土专用胶凝材料
Slag-fly ash based cementitious materials special for high performance concrete
摘要
Abstract
Cementitious materials special for high performance concrete with high volume of fly ash and slag and less cement clinker were prepared by optimizing the proportion of ingredients and the size fraction and using an additive. The effects of grinding modes, gypsum amount and the mix proportion of slag to fly ash on the strength of the cementitious materials were studied. X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM) were used to observe the microstructure and hydration products and investigate the collaborative optimization effect between the activity and grading of the cementitious materials. The results show that cementitious materials have good mortar fluidity when the water-binder ratio (W/C) is 0. 36, the compressive strength of colloidal mortar specimens cured for 28 d is 58.9 MPa and the 28 d fiexural strength is 14.2 MPa, which have favorable properties of erosion resistance to sulfates. The concrete made from the cementitious materials has a better ability of carbonation resistance.关键词
胶凝材料/矿渣/粉煤灰/抗压强度/抗侵蚀性能/抗碳化性能Key words
cementitious materials/ slags/ fly ash/ compressive strength/ erosion resistance/ carbonation resistance分类
矿业与冶金引用本文复制引用
伏程红,倪文,张旭芳,王中杰,田明阳..矿渣-粉煤灰基高性能混凝土专用胶凝材料[J].工程科学学报,2011,33(5):606-613,8.基金项目
"十五"国家科技攻关计划资助项目(No.2004BA615A-05-08) （No.2004BA615A-05-08）
