Research on Clay-Cement Concrete in Anti-Filtration Elements of Earth Dams at Freeze-Thaw Temperatures

2021 ◽  
Author(s):  
V. M. Korolev ◽  
I. N. Shishov ◽  
E. S. Argal
Keyword(s):  
Earth Dams ◽  
Cement Concrete ◽  
Freeze Thaw

Study on Cement Concrete Pavement Treatment Methods of Common Damage Diseases

2014 ◽  
Vol 716-717 ◽  
pp. 307-309 ◽  
Author(s):  
Zhong Gen Liu ◽  
Fu Ming Xu ◽  
Guo Bin Cao
Keyword(s):  
Disease Prevention ◽  
Concrete Pavement ◽  
Jilin Province ◽  
Fracture Dislocation ◽  
Cement Concrete ◽  
Corner Crack ◽  
Treatment Methods ◽  
Pavement Maintenance ◽  
Freeze Thaw ◽  
Cement Concrete Pavement

This paper analyzed for common diseases treatment methods for cement pavement in Jilin province seasonal freeze-thaw area, based on the analyses, disease prevention and repair methods have been put forward for water deposit, fracture, dislocation, potholes, arch, plate corner crack and uneven settlement, the research results have certain reference meanings for cement pavement maintenance.

scholarly journals Exploring Polymer-Modified Concrete and Cementitious Coating with High-Durability for Roadside Structures in Xinjiang, China

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Yinchuan Guo ◽  
Aiqin Shen ◽  
Xiaohui Sun
Keyword(s):  
Chloride Ions ◽  
Performance Tests ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Coating Materials ◽  
Freeze Thaw ◽  
Acrylic Latex ◽  
High Durability ◽  
Polymer Modified Concrete ◽  
Styrene Butadiene

The concrete roadside structures in Xinjiang, China, such as roadside barriers, bridge rails, and drainage holes, are severely damaged by the coupled effect of seasonal freeze-thaw cycles and deicer salts. To solve the corrosion problems of roadside structures, polymer-modified concrete was recommended for the future construction of roadside structures and polymer-modified cementitious coating was suggested for the protection of the current corroded ones. In this study, air-entraining agent and carboxylated styrene-butadiene latex were added for concrete modification and the corresponding performance tests were conducted. In addition, the performances of six types of readily available coating materials, including the acrylic latex modified cementitious coating designed in this study, were tested in freeze-thaw condition with the presence of chloride ions. The results show that 0.013% of the air-entraining agent and 10% of the carboxylated styrene-butadiene latex were appropriate dosage rates for the modification of Portland cement concrete, in terms of the improvement of the freeze-thaw resistance, compressive strength, and chloride impermeability. For the protection of the current corroded roadside structures, the acrylic-modified cementitious coating material demonstrated a good performance and the field monitoring confirmed that the coating is suitable for the protection of the roadside structures in Xinjiang.

Freeze–thaw damage and chemical change of a portland cement concrete in the presence of diluted deicers

2009 ◽  
Vol 43 (7) ◽  
pp. 933-946 ◽  
Author(s):  
Xianming Shi ◽  
Laura Fay ◽  
Marijean M. Peterson ◽  
Zhengxian Yang
Keyword(s):  
Portland Cement ◽  
Chemical Change ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Freeze Thaw
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