US EPA

6863721 

Journal Article 

The Frost Resistance of High Strength Concrete Containing Super-fine Mineral Admixture 

Li, HF; Xia, Yi; , 

2012 

TRANS TECH PUBLICATIONS LTD 

DURNTEN-ZURICH 

2999-+ 

10.4028/www.scientific.net/AMR.512-515.2999 

WOS:000312119901287 

The influence of limestone powder, lithium slag and air-entraining agent on frost resistance of concretes was investigated by freezing-thawing cycle tests. The elastic moduli and weight loss rates of concretes before and after tests were checked. The results show the introduction of limestone powder into concrete is disadvantageous to its frost resistance, which gets worse as limestone powder contents increase. Air-entraining agent used in concrete can improve its frost resistance. The frost resistance grades of concrete containing a certain of air-entraining agent (0.2-0.4 parts per thousand) can reach F1500, while it is below F300 for limestone powder concrete which is absent of air-entraining agent. The addition of lithium slag into concrete is helpful to frost resistance, and optimum mixing amount is 10%. 

Ren, N; Che, LK; Jin, B; Dong, R; Su, H; 

978-3-03785-414-3 

1st International Conference on Energy and Environmental Protection (ICEEP 2012) 

Hohhot, PEOPLES R CHINA