摘要
通过试验研究了三乙醇胺（TEA）对掺矿渣粉、粉煤灰及石灰石的复合硅酸盐水泥的增强效果．结果表明．复合硅酸盐水泥的强度与混合材“矿渣粉-粉煤灰-石灰石”的组成有关．TEA对复合硅酸盐水泥的增强效果也因混合材不同而存在一定的差别。TEA可以使大部分复合硅酸盐水泥的早期抗压强度（3d）提高10％左右，早强效果显著。混合材为“30％粉煤灰-10％石灰石”时，早期抗压强度提高15％左右，早强效果尤为突出。但是．TEA对矿渣粉含量较高的复合硅酸盐水泥的早期强度改善不大，仅使3d抗压强度提高5％～10％。TEA对复合硅酸盐水泥的后期强度（28d）影响较小，抗压强度变化基本上不超过5％.
The strength-enhancing effect of Triethanolamine （TEA） on composite Portland cement, which admixed with slaglimestone-fly ash, was investigated. The results showed that the strength of composite Portland cement and the strength enhancing effect of TEA were closely related to the composition of slag-limestone-fly ash added into the cement. TEA could increase the early-age strength （3d） of most composite Portland cements by about 10%. In particular, it could increase the early-age strength of the composite Portland cement, which containing ＂30%fly ash-10%limestone＂, by 15%. However, the early-age strength-enhancing effect of TEA on the cement containing a high content of slag was not so obvious, only 5%- 10%. In addition, TEA had a limited or nil effect （less than 5%） on the late-age strength （28d） of most composite Portland cenlents.
出处
《水泥》
CAS
2014年第1期10-13,共4页
Cement
关键词
三乙醇胺
复合硅酸盐水泥
混合材
增强效果
triethanolamine
composite Portland cement
admixture
strength-enhancing effect
