摘要
By heat treatment and addition of the surfaceactive agent,research on the separation of retainer andcementing mix from demolished concrete is made.Percentage of the 2mm and 5mm screen underflow ismeasured and their chemical compositions analyzed.Their result indicate that by mixing into 3 % of triethanolamine(TEA),the best separating effect ofretainer and cementing mix can be obtained.Whenthe percentage of screen underflow is 27.7 %,theseparating effect of heat treatment under 280 ℃ and500℃ is only second to that of the former.
By heat treatment and addition of the surface active agent, research on the separation of retainer and cementing mix from demolished concrete is made. Percentage of the 2mm and 5mm screen underflow is measured and their chemical compositions analyzed. Their result indicate that by mixing into 3 % of triethanolamine （TEA）, the best separating effect of retainer and cementing mix can be obtained. When the percentage of screen underflow is 27. 7 %, the separating effect of heat treatment under 280℃ and 500℃ is only second to that of the former.
出处
《建材技术与应用》
2005年第6期7-8,共2页
Research and Application of Building Materials
