Cggc established three top one in china in 1987 during the construction of gezhouba hpp , i . e . annual installed sets , capacity and progress of the turbo - generator units 1987年,葛洲壩集團(tuán)在葛洲壩工程建設(shè)中創(chuàng)造了當(dāng)時(shí)年裝機(jī)臺(tái)數(shù)、容量和進(jìn)度"三個(gè)全國(guó)第一" 。
By compounding jd with hpp , the " overlapping effect " of two kind superplasticizers was fully manifested . the compatibility of jd with cement and keeping slump value were more improved through this compounding way . meantime , the bleeding and segregation of hpp were overcome too Jd和hpp復(fù)合使用,可充分發(fā)揮高效減水劑的“疊加效應(yīng)” ,進(jìn)一步提高jd與水泥的適應(yīng)性,坍落度保持性能,也克服了氨基磺酸鹽高效減水劑泌水離析等缺陷。
The synthesizing process can be finished in a single kettle . not only technology is very simple , but also the reaction time is shortened , therefore , the production efficiency is obviously increased . the general performances of modified melamine resin superplasticizer jd can be furthermore improved by compounding amino - arylsulphonate phenol formaldehyde condensate superplasticizer hpp 使用廉價(jià)的活性單體尿素取代三聚氰胺單體以降低高效減水劑的生產(chǎn)成本,并將取代量提高到了目前最高水平17 ;合成在一個(gè)反應(yīng)釜中完成,工藝簡(jiǎn)單,反應(yīng)時(shí)間縮短,提高了生產(chǎn)效率;本文通過(guò)物理改性的手段,即復(fù)配氨基磺酸鹽高效減水劑hpp ,可進(jìn)一步改善改性密胺樹(shù)脂高效減水劑的綜合性能。
hpp перевод:[high power partner] потребитель мощных систем бесперебойного питания HPP [high power partner] потребитель мощных систем бесперебойного питания