超塑化剂又叫混凝土外加剂,国外一般称为超塑化剂是指能产生具有很好的和易性(高流动性、保水性、粘聚性)更便于浇注的流态混凝土,但不降低水泥用量和强度的添加剂,在中国主要是指减水率高的高效减水剂和高性能减水剂等
【正文快照】: 高效减水剂 (High -RangeWaterReducingAgent) ,又名超塑化剂 (Superplasticizer)是在不改变混凝土工作性的条件下 ,能大幅度减少单位用水量 ,并显著提高混凝土强度 ,或在不改变单位用水量的条件下 ,可显著改善混...
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超塑化外加剂 Superplasticized admixture
Testing results showed that dispersion and dispersing stability of superplasticizer were much influenced by mixed ratio of MAPEG.
结果表明,不同链长的MAPEG的混合比对超塑化剂分散及分散稳定性影响很大。
参考来源 - 不同侧链长度比例对聚羧酸超塑化剂分散性能影响Polycarboxylic type superplasticizer is a new high performance superplasticizer with very high water reducing rate at low dosage. It is of the characteristics of low slump loss,little effect on setting time and clearly effect on strength rise.
聚羧酸是一种新型高性能超塑化剂,它掺量低,减水率高,增强效果显著,坍落度经时损失低,对凝结时间影响较小,是21世纪高性能混凝土超塑化剂的研究热点。
参考来源 - 聚羧酸系超塑化剂的合成与性能研究·2,447,543篇论文数据,部分数据来源于NoteExpress
配制高性能混凝土最有效的几种组分是超塑化剂、粉煤灰或矿渣、硅粉。
The most effective ingredients for making up high performance concrete are super-plasticizing agent, fly ash or slag powder, silicon powder.
在水泥颗粒表面的吸附是超塑化剂分散作用的开始,也是其作用的基础。
The adsorption of superplasticizer on cement particle is the be-ginning of dispersion , and it is also foundation of its function.
但是,他们并未对单个超塑化剂分子在水泥颗粒表面的吸附形态提出看法。
Molecules of superplasticizer can adsorb on cement particles in disordered state. This changes physicochemical properties of particle surface.
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