...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials and structures >Waste glass as binder in alkali activated slag-fly ash mortars
【24h】

Waste glass as binder in alkali activated slag-fly ash mortars

机译：废玻璃作为碱活化矿渣-粉煤灰砂浆中的粘合剂

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper illustrates the application of waste glass powder as part of the binder in slag-fly ash systems activated by NaOH and NaOH/Na2CO3 activators. To evaluate the reaction kinetics, reaction products, mechanical properties, and durability performance of glass powder modified alkali activated slag-fly ash systems, calorimetry test, X-ray diffraction, FTIR, strength test, drying shrinkage tests, and carbonation test were conducted. From the isothermal calorimeter results, glass powder shows a higher reactivity compared to fly ash but still lower than slag. The reaction products of glass power modified samples exhibit an enhancement of polymerization degree of Si-O-T, observed in FTIR. As a consequence, higher drying shrinkage exists in glass modified mortars. The mechanical performance of different samples is mostly controlled by the Ca/Si of dry mixtures and activator type. After the slag-fly ash binder system was modified by the waste glass, a significant enhancement of resistance to carbonation was identified, especially for NaOH/Na2CO3 activated mortars, which show an increase of 300% on the carbonation resistance ability compared to the reference sample. The Na/(Si + Al) ratio of dry mixtures exhibits a positive correlation with carbonation resistance.
机译：本文说明了玻璃废粉作为粘结剂在由NaOH和NaOH / Na2CO3活化剂活化的粉煤灰系统中的应用。为了评估玻璃粉改性的碱活化矿渣-粉煤灰系统的反应动力学，反应产物，机械性能和耐久性能，进行了量热测试，X射线衍射，FTIR，强度测试，干燥收缩率测试和碳化测试。从等温量热仪的结果来看，与粉煤灰相比，玻璃粉具有更高的反应性，但仍低于炉渣。在FTIR中观察到，玻璃粉改性样品的反应产物显示出Si-O-T的聚合度提高。结果，在玻璃改性的砂浆中存在较高的干燥收缩率。不同样品的机械性能主要由干燥混合物的Ca / Si和活化剂类型控制。用废玻璃改性炉渣-粉煤灰粘结剂系统后，发现抗碳化性显着提高，特别是对于NaOH / Na2CO3活化砂浆，与参考样品相比，抗碳化能力提高了300％ 。干燥混合物的Na /（Si + Al）比与抗碳化性呈正相关。

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