赤泥_粉煤灰免烧矿物聚合物材料的制备和强度.pdfVIP

29 1 Vol. 29 N o. 1 2010 2 BULLETIN OF THE CH IN ESE CERAM IC SOC IETY February, 2010 / , , , , ), 100083) : , , / , , / 60% ~ 70% , 3 d 10 MPa, MU 10 : ; ; ; ; : TU423 : A : 100121625 2010) 0120038205 Preparation and Compressive Strength ofRed2mud and F ly Ash Based Non2sinteringGeopolym er LI Wen 2juan, GON G M eng, H UANG Zhao2hu i, FAN G M ing 2hao, LI U Yan 2ga i School ofM aterials Scien ces and Technology, Ch ina Un iversity of Geoscien ces B eijing), Beijing 100083, Ch ina) Abstract: The high early compressive strength geopolym er is prepared by u sing red2mud and fly ash as them ain raw m aterials, add ing suitable water glass as a lkali exc it ing agen .t Influence of a lkali exc iting agent to the deve lopm ent of compressive strength of the samp les was d iscussed in this p aper. The non2 sinter ing m ater ia ls were prepared by u sing silver sand as the aggregate cem enting w ith red2mud and fly ash geopolym er. When add ing amoun ts of red2mud are b etween 60% 270% , the compressive strength of all samples in the third day is higher than 10 MP a, they satisfy the dem and ofMU 10 high qua lity for free2 b earing wa llboard m aterials. Them echanism of cem enting reaction is a lso d iscu ssed briefly. ey words: geopolym er; red2mud; non2sintering; compressive strength; reaction m echan ism 1 引 言 1978, Joseph Davidovits [ 1] , : , [ 2]