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FDN高效减水剂是硫酸(可采用工业废酸)经过萘磺化然后由甲醛缩合的多萘核磺酸纳.用做砼拌合物的外加剂,有增加砼的流动度,提高砼早期强度,增大砼密实性,并使砼能够达到和超过水泥标号等特点,因此具有一定的经济性和先进性.1980年初,我公司即应用砼建筑施工.两年来共浇灌各种类型砼约一万二千立方米左右,实际采用掺入FDN减水剂的砼约一千三百立方米左右,约占砼总量11%.我们根据减水剂的特点,目前仅使用于下述四个方面,就施工过程和竣工后的工程情况看是达到了予期的目的.到目前为止,还未发现其他副作用.
FDN superplasticizer is sulphuric acid (can be used industrial waste acid) after naphthalene sulphonation and then condensed by formaldehyde sodium polynaphthalene sulfonate. Used as an admixture of plutonium admixture, there is an increase in plutonium fluidity, improve pupal early Strength, increase concrete density, and enable concrete to meet and exceed the cement label and other characteristics, so it has a certain degree of economic and advanced. In early 1980, our company applied concrete building construction. About 12,000 cubic meters, about 1300 cubic meters of cesium, which is mixed with FDN water-reducing agent, is actually used, which accounts for about 11% of the total amount of thorium. According to the characteristics of water-reducing agent, we only use it in the following four. On the other hand, the construction process and the post-completion project situation have met the objectives. So far, no other side effects have been found.