Construction & Materials Best Practice for Concrete Sidewalks
| 项目名称： | Construction & Materials Best Practice for Concrete Sidewalks |
| 摘要： | Rapid deterioration of concrete sidewalks has been observed after only a few cycles of freezing and thawing. The causes for this rapid deterioration are not fully known but are believed to be caused by a combination of effects including materials, concrete mixtures, and construction practices. This project seeks to accomplish the following objectives: 1. Determine best construction practices that result in durable concrete sidewalks. These include concrete placement activities, finishing procedure and time, and curing method (moist cure, chemical cure, no cure). 2. Identify the best performing materials (concrete mixture designs) that contribute to durability. The use of deicing chemicals for sidewalk treatment in response to winter storm events is also included among the variables studied. 3. Identify the factors that contribute to decreased durability of concrete sidewalks through a combination of laboratory testing of hardened concrete (scaling resistance, petrographic analysis, air void structure analysis, and chloride content) and photographic documentation conducted at the site. |
| 状态： | Completed |
| 资金： | $180,000 |
| 资助组织： | Massachusetts Department of Transportation |
| 开始时间： | 20191001 |
| 预计完成日期： | 20210331 |
| 实际结束时间： | 20210401 |
| 主题领域： | Design；Highways；Maintenance and Preservation；Materials |
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