![](images/graphics/blank.gif)
Influences of shrinkage reducing admixture on the mechanical properties, drying shrinkage, water absorption and porosity of Portland cement mortar
15
lượt xem 1
download
lượt xem 1
download
![](https://tailieu.vn/static/b2013az/templates/version1/default/images/down16x21.png)
The reduction in flexural strength and compressive strength at 28 days is 14% and 25%, respectively at 7% SRA dosage. In addition, SRA significantly reduces the drying shrinkage and water absorption of mortar. At 7% SRA dosage, the drying shrinkage at 53 days is reduced by 60% while the water absorption rate at 24 hours is reduced by 54%. However, SRA has a minor effect on the pore size distribution, effective porosity, and cumulative intrusion volume of mortar.
Chủ đề:
Bình luận(0) Đăng nhập để gửi bình luận!
![](images/graphics/blank.gif)
CÓ THỂ BẠN MUỐN DOWNLOAD