缓凝高效减水剂

1
set retarding superplasticizer
...缓凝高效减水剂；防水混凝土；工程应用 [gap=780]Key words : multifunction water repellent admixture ； set retarding superplasticizer； waterproof concrete； engineering application ..
2
retarding superplasticizer
... 缓慢释放 slow-released 缓凝高效减水剂 retarding superplasticizer 缓倾 low-angle ...
3
setretarder superplasticizer
萘系高效减水剂 FDN 缓凝高效减水剂 set retarding super plasticizer ; setretarder superplasticizer 氨基磺酸盐高效减水剂 aminosulphonate based superplasticizer ..
4
retarders as well as superplasticizer
...国论文网关键词】缓凝高效减水剂；配合比设计；坍落度；控制情况 [gap=527]keywords 】 retarders as well as superplasticizer; Mix design; slump; Control situation ...

1
通过缓凝三元复合制成缓凝高效减水剂，延长初凝时间至20 小时以上，并且对混凝土后期强度无副作用。
Mix with setretarder could make compound dispersants setretarder superplasticizer which could extend initial setting time up to 20h and no negative effect on late compressive strength.
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研究了木素磺酸钙的氧化磺化等复合改性工艺，合成了以木素磺酸钙为主要原料的低成本缓凝高效减水剂GCL1。
A low cost retarded high range water reducing agent GCL1 was prepared via oxidation and sulfonation modification using calcium lignosulfonate as primary raw material.
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试验结果表明，复合使用高效减水剂和缓凝剂，能有效控制混凝土坍落度经时损失。
Experiment results showed that compound use of efficient water-reducing admixture and retarding agent can efficiently control the pumped concrete slump loses through time.

缓凝高效减水剂
缓凝高效减水剂是以萘系减水剂，及适量缓凝成份，兼有合理引气成份组成。本产品减水率高，增强效果显著，可明显改善混凝土流动性和工作度，初凝前缓凝效果明显，终凝后早强效果显著，能大幅度提高混凝土各龄期的强度，对水泥品种适应较广泛。对钢筋无锈蚀，与硅粉或矿物超细掺合料复合掺用，可配制C80以下高强混凝土。

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