首页> 外文会议>International Conference on Concrete Repair, Rehabilitation and Retrofitting >Reaction mechanisms and thermodynamic modelling of Thaumasite Sulfate Attack (TSA); experimental modelling
【24h】

Reaction mechanisms and thermodynamic modelling of Thaumasite Sulfate Attack (TSA); experimental modelling

机译:硫酸盐硫酸盐攻击(TSA)的反应机理和热力学建模;实验建模

获取原文

摘要

The well known conditions of Thaumasite formation [Ca_3 Si(OH)_6· 12 H_2O]· (SO_4)· (CO_3) in Portland cement pastes, - mortars and - concretes are low temperatures (< 15°C), sulphate attack and the availability of dissolved silicate- and HCO_3~- - and CO_3~(2-) -ions, respectively dissolved CO_2 are confirmed. Additionally, our investigations have shown that the alkali content of cement pastes may strongly influence the formation of Thaumasite. Related to comparable sulphate and carbonate concentrations in fully hydrated cement pastes TSA is the stronger the higher the sodium equivalent contents of the cements are.
机译:众所周知的甲磺酸盐形成条件[Ca_3 Si(OH)_6·12 H_2O]·(SO_4)·(CO_3)在波特兰水泥浆料中, - 砂浆和 - 混凝土是低温(<15°C),硫酸盐攻击和确认溶解硅酸盐和HCO_3〜 - - - 和CO_3〜(2-) - 分别溶解CO_2的可用性。此外,我们的研究表明,水泥浆料的碱含量可能会强烈影响甲磺酸盐的形成。与完全水泥水泥浆料的相当硫酸盐和碳酸盐浓度有关的是较强的水泥的等效内容越高。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号