Durability in Cold Area of Prefabricated Concrete Structures

2014 ◽  
Vol 638-640 ◽  
pp. 1317-1321
Author(s):  
Ya Bo Wang ◽  
Lei Qian ◽  
Gao Feng Dou ◽  
Chuan Hao Xi ◽  
Han Ting Liu
Keyword(s):  
Failure Mechanism ◽  
Influencing Factors ◽  
Concrete Structure ◽  
Concrete Structures ◽  
Cold Regions ◽  
Factors Affecting ◽  
Cold Area ◽  
Durability Of Concrete

The factors affecting durability of concrete structures is described in This paper .It is pointed out here that is the concept of durability in prefabricated concrete structure , the influencing factors and failure mechanism in cold regions. It is proposed which are the methods and corresponding measures to enhance the durability of concrete structures.

Research on Factors Affecting Durability and Improvements for FRP Reinforced Concrete Structures

2011 ◽  
Vol 189-193 ◽  
pp. 847-852 ◽  
Author(s):  
Lei Tan ◽  
Xi Jun Liu ◽  
Ming Qiao Zhu
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structure ◽  
Civil Engineering ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Reinforced Concrete Structure ◽  
Factors Affecting ◽  
Related Research ◽  
Durability Of Concrete ◽  
At Home

With wide applications of FRP in civil engineering, it is necessary to study the durability of FRP reinforced concrete structure. Based on the related research both at home and abroad, the factors affecting durability of FRP reinforced concrete structures and the corresponding improvements have been put forward by analyzing the durability of concrete, FRP materials and reinforced structures, respectively.

Durability of Concrete Structure Research and Development Direction

2010 ◽  
Vol 44-47 ◽  
pp. 2346-2353
Author(s):  
Lei Jiang ◽  
Ji Tao Yao ◽  
Ren Xin ◽  
Wei Li
Keyword(s):  
Research And Development ◽  
Concrete Structure ◽  
International Research ◽  
Concrete Structures ◽  
Future Research ◽  
Development Direction ◽  
The World ◽  
Four Levels ◽  
Structure Research ◽  
Durability Of Concrete

Currently, durability of concrete structures is a hot area of civil engineering. This paper reviews the background to the study of concrete and the current international research developments. Recent accomplishments in the world are summarized on four levels—environment, materials, components, structure. Finally, directions of future research are also proposed.

The Durability and Damage Testing of High Performance Concrete

2013 ◽  
Vol 591 ◽  
pp. 325-328
Author(s):  
Wei Hong Li ◽  
Ying Ying Xu
Keyword(s):  
Concrete Structure ◽  
High Performance ◽  
High Performance Concrete ◽  
Concrete Structures ◽  
Construction Engineering ◽  
Engineering Structure ◽  
Main Research ◽  
Testing Technology ◽  
Concrete Damage ◽  
Durability Of Concrete

Concrete structures are widely used in engineering structure, but because of the problem of environment and material, the durability of the concrete structure appears. This paper first states the main research content of the durability of concrete structures, then introduces the main ways to improve the durability of concrete structure. Finally it summarizes several kinds of concrete damage testing technology and characteristics, and the construction engineering testing technology is prospected.

Progress and Review of Research on Durability of Hydraulic Concrete under Alternate Freeze-Thaw and Carbonation Effected by Wet-Dry Cycles

2013 ◽  
Vol 405-408 ◽  
pp. 2734-2738
Author(s):  
Xiao Ming Shen ◽  
Hua Quan Yang ◽  
Xiang Li ◽  
Ming Xia Li
Keyword(s):  
Pore Structure ◽  
Water Content ◽  
Failure Mechanism ◽  
Influencing Factors ◽  
Freeze Thaw ◽  
Hydraulic Concrete ◽  
Durability Of Concrete

A review of current worldwide researches on the durability of concrete was presented. Porosity and water content of concrete changing in wet-dry cycles were introduced, the failure mechanism of freeze-thaw and carbonation and the relation with pore structure, as well as its interaction influencing factors. Some key problems to be further studied were proposed on the basis of the research achievements of leaching.

Progress of the Durability of Concrete Structure of the Subway

2011 ◽  
Vol 250-253 ◽  
pp. 1456-1459 ◽  
Author(s):  
Min Qin Wu
Keyword(s):  
Concrete Structure ◽  
Concrete Structures ◽  
Chloride Ion ◽  
Stray Current ◽  
Environmental Characteristics ◽  
Durability Of Concrete ◽  
At Home

More problem about the corrosion of concrete structures in subway engineering at home and abroad has been reported, people have analyzed that many factors have caused the corrosion of its concrete structure according to environmental characteristics and the location, such as the stray current and chloride ion and so on.we have reviewed the current research of the corrosion of concrete structures in subway engineering concerned on stray current and chloride ion, pointing out the direction of the study of corrosion of concrete structures in subway engineering.

Study and Application of Permeability Formwork to Marine Concrete

2013 ◽  
Vol 438-439 ◽  
pp. 333-337
Author(s):  
Qi Feng ◽  
Xiao Guang Wu ◽  
Ben Dong Zhao
Keyword(s):  
Concrete Structure ◽  
Concrete Structures ◽  
Working Life ◽  
Construction Process ◽  
Marine Structures ◽  
Working Mechanism ◽  
Development History ◽  
Research Status ◽  
Marine Concrete ◽  
Durability Of Concrete

During the construction of concrete structure, laying controlled permeability formwork within the traditional formwork can effectively improve the durability of concrete for marine structures and prolong the working life of concrete structures. This paper discusses the working mechanism of controlled permeability formwork, introduces its development history and research status, summarizes the construction process and matters needing attention of controlled permeability formwork, and puts forward the problems remaining to be solved at present.

scholarly journals Durability Environmental Regionalization for Concrete Structures

2013 ◽  
Vol 2013 ◽  
pp. 1-11
Author(s):  
Daming Luo ◽  
Yan Wang ◽  
Ditao Niu
Keyword(s):  
External Factor ◽  
Concrete Structures ◽  
Measured Data ◽  
Dominant Factor ◽  
Analysis Method ◽  
Factors Affecting ◽  
Shenzhen City ◽  
Different Climates ◽  
Durability Of Concrete

Environment is the external factor that affects the durability of concrete structures. Buildings in different regions with different climates will respond to durability deterioration in different ways. For macroenvironmental regionalization, the dominant factor analysis method of the climatic zonation was applied into the environmental regionalization in this paper. Based on the environmental characteristics in China and the effect of environmental factor on the durability of concrete structure, the proper regionalization indexes are chosen, and the environmental regionalization is made. For microenvironmental regionalization, fuzzy set and rough set theories were used in date mining on discrete measured data, and the weight determination of various factors affecting durability was transformed into evaluation of the significance of attributes among rough sets. The method of durability environmental regionalization is established by analyzing the degree of influence that various factors have on the durability of concrete structures. The result of durability environmental regionalization for concrete structures in Shenzhen city shows that the proposed approach is reasonable.

scholarly journals EFFECT OF SURFACE PENETRANTS(SILANE TYPE) ON IMPROVING THE DURABILITY OF CONCRETE STRUCTURE IN COLD REGIONS

2011 ◽  
Vol 67 (1) ◽  
pp. 69-88
Author(s):  
Hirotake ENDOH ◽  
Fumio TAGUCHI ◽  
Syuji MIYAMOTO ◽  
Tomoyuki MURANAKA ◽  
Hiroyuki GOTOH ◽  
...  
Keyword(s):  
Concrete Structure ◽  
Cold Regions ◽  
Effect Of Surface ◽  
Durability Of Concrete

Penetration Resistance to Chloride Ions of Silica Fume Concrete

2014 ◽  
Vol 584-586 ◽  
pp. 1519-1522
Author(s):  
Yun Feng Li ◽  
Xiao Peng Fan ◽  
Lei Wen Gao ◽  
Ying Tao Li
Keyword(s):  
Silica Fume ◽  
Concrete Structures ◽  
Penetration Resistance ◽  
Chloride Ions ◽  
Factors Affecting ◽  
Binder Ratio ◽  
Water Binder Ratio ◽  
Durability Of Concrete

The penetration resistance to chloride ions of concrete is one of the important factors affecting the durability of concrete structures. The penetration resistance to chloride ions of concrete is measured with the increasing substitution amount of silica fume in this paper. For the low water-binder ratio of 0.28, 0.30 and 0.32, compared with the reference concrete, with the increase of age, the penetration resistance to chloride ions of concrete can be enhanced with the increasing substitution amount of silica fume, but the increased range is smaller. The penetration resistance of chloride ions of concrete is not necessarily improved by gradually decreasing the water-binder ratio. Considering the substitution amount of silica fume, water-binder ratio and concrete age, the best mix proportions are that the substitution amount of silica fume is 9% or 12% when the water-binder ratio is 0.28 and the substitution amount of silica fume is 12% when the water-binder ratio is 0.30.

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