Cement foaming agent

The invention discloses a cement foaming agent which comprises the following raw materials in parts by weight: 1-1.9 parts of rosin, 0.5-1 part of bone glue, 0.2-0.5 part of sodium hydroxide, 0.2-0.5 part of lauryl sodium sulfate, 3-5 parts of glutinous rice starch and 90-95 parts of water. The rosin is first level rosin, the bone glue is high quality bone glue, and the cement foaming agent also comprises 0.5-1 part of a silicone resin polyether emulsion as a foam stabilizer. The cement foaming agent is high in foaming rate, good in cement compatibility and stable in foam, is light in weight, high in strength, small in dosage and low in cost, is good in fireproof and waterproof properties, free of radioactivity and wide in application, and has energy-saving and environmental-friendly effects; the raw materials are easily available, and the preparation process is simple and easy to implement. 本发明公开了水泥发泡剂，包括下列重量组份的原料：松香1-1.9份、骨胶0.5-1份、氢氧化钠0.2-0.5份、十二烷基硫酸钠0.2-0.5份、糯米淀粉3-5份和水90-95份，松香为级松香，所述骨胶为优质骨胶，水泥发泡剂还包括0.5-1份