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草原牧歌_巧木蟲 (初入文壇)
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[求助]
減水劑的種類和效果 已有3人參與
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| 水泥行業(yè)的師傅們應(yīng)該都懂得最近市場所用的減水劑,不知道那種減水劑效果更好些,會表現(xiàn)出什么優(yōu)異的性能?望誠心者回帖 |
銀蟲 (著名寫手)
木蟲 (職業(yè)作家)
摩天居士
| 可以在我這里下資料看看,書上介紹的很詳細(xì)。。。。。。。。http://www.gaoyang168.com/bbs/viewthread.php?tid=6451154 |

鐵蟲 (小有名氣)

金蟲 (小有名氣)

新蟲 (初入文壇)
木蟲 (正式寫手)
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Polycarboxylate superplasticizers (PCEs) present a class of cement dispersants which exhibit a comb or brush-like structure. They consist of a trunk chain holding carboxylate groups and of pendant chains which are made of polyethylene or polyethylene/polypropylene glycols. Since their invention in 1981, several types of PCE products have been introduced and are manufactured commercially. The PCE products include: 1 MPEG – type PCEs 2 APEG – type PCEs 3 HPEG-type PCEs 4. IPEG – type PCEs 5. PAAM – type PCEs and so on... |
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