| 张亚涛.硅质骨料碱活性测定方法—砂浆棒
快速法的不同标准比较[J].水泥工程,2017,30(3):68-70 |
| 硅质骨料碱活性测定方法—砂浆棒
快速法的不同标准比较 |
| Different standard comparison of accelerating mortar-bar test methodand—— alkali activity measuring method of siliceous aggregate |
| |
| DOI： |
| 中文关键词: 水泥 硅质骨料 碱-硅酸反应 膨胀率 |
| 英文关键词: cement siliceous aggregate alkali silica reaction expansion rate |
| 基金项目: |
|
| 摘要点击次数: 1556 |
| 全文下载次数: 3 |
| 中文摘要: |
| 碱-硅酸反应是碱-骨料反应中最常见的反应，检测含活性硅成分的骨料是否有潜在碱-硅酸反应的常用方法——砂浆棒快速法，而不同的标准对该方法却有不同的规定，极易造成使用时的混淆，影响检测结果。评述了国内现行的五个标准对该方法规定的异同，指出要重点关注水泥使用、试件成型、试件测试和结果处理四个方面，并结合实际，在增大试验成功率和减小误差方面给出建议。 |
| 英文摘要: |
| ASR （Alkali silica reaction） is the most common reaction in the AAR （alkali-aggregate reaction）， and accelerating mortar-bar test method is used to detect whether the aggregate containing active silicon has a potential ASR， but there are many different provisions of the method in different standards， this situation can easily lead to confusion during using the methods， when using the wrong specification， there is a negative impact to get the correct results. This paper reviews the similarities and differences of the five existing domestic standards， and points out that it is important to pay attention to the four aspects of using cement， molding sample， testing sample and processing result， and some recommendations are given to increase the success probability and decrease error of the test. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |