@inproceedings{2f90265aeacf4582a4414e3870acadc5,
title = "Preparation of MgO- and CaO-bearing expansive agent used for cement-based materials",
abstract = "Blended expansive agents consisting of MgO and CaO were prepared by calcining the mixtures of dolomite and magnesite. The mineral phases and microstructures of expansive agent were examined by XRD and SEM. The expansion properties of cement pastes containing 5% and 6% of expansive agent as well as the microstructure of hydrated expansive agent in cement paste were investigated. Results indicated that the contents of MgO and CaO in the blended expansive agent could be adjusted by changing the mix proportion of dolomite and magnesite. All the cement pastes containing expansive agent produced rapid expansion. At the same addition dosage, irrespective of curing temperature, expansive agent containing higher content of MgO produced greater expansion in cement pastes, particularly at late age, which probably ascribes to the relatively slow hydration of MgO.",
keywords = "CaO, Expansive agent, MgO",
author = "Mo Liwu and Deng Yang and Lu Anqun and Deng Min",
year = "2013",
doi = "10.4028/www.scientific.net/KEM.539.211",
language = "英语",
isbn = "9783037855775",
series = "Key Engineering Materials",
publisher = "Trans Tech Publications Ltd",
pages = "211--214",
booktitle = "Testing and Evaluation of Advanced Building Materials",
address = "瑞士",
note = "1st National Academic Symposium on Testing and Evaluation of Building Materials, TEBM 2012 ; Conference date: 22-06-2012 Through 24-06-2012",
}