水泥防固剂水泥出厂后，由于其水化作用会吸收空气中的水汽，慢慢地凝固，结成硬块，使之失效、变质，不能使用。如果能够研究出一种用量少、价钱便宜的防团剂，添加在水泥里，使水泥在空气中水化慢、不凝固，不结块，不影响其标号和强度，延长存放期，那该多好。（巫有生... After cement is released from the cement, the cement will absorb the water vapor in the air due to its hydration action, slowly solidify, form a hard block, and cause it to fail or deteriorate. It cannot be used. If it is possible to develop an anti-agglomeration agent with a small amount and a low price, it can be added to the cement to make the cement hydrate slowly in the air, does not solidify, does not agglomerate, does not affect its labeling and strength, and extends the storage period. That’s good. (Witches have...