Dissertation > Excellent graduate degree dissertation topics show

Experimental Investigation of Corrosion-induced Cover Cracking of Multi-mineral Admixtures Concrete

Author: LiZuoQing
Tutor: NiuZuoTao
School: Xi'an University of Architecture and Technology
Course: Disaster Prevention and Reduction Engineering and Protective Engineering
Keywords: multi-mineral admixtures concrete marine concrete structure accelerated corrosion cover cracking weight loss ratio
CLC: TU375
Type: Master's thesis
Year: 2009
Downloads: 107
Quote: 0
Read: Download Dissertation

Abstract


When the concrete structure in a relatively poor environmental conditions,concrete reinforcement corrosion will lead to concrete cracking corrosive protective coating,in particular long-term concrete structure works in marine concrete structures by the chloride ion erosion and alternating wet and dry change of reinforced surface,so the concrete in marine concrete structures structure works faster than normal concrete structure,Damage caused by steel corrosion direct and indirect losses is much larger. therefore,how in the design,construction methods appropriate to quote to ensure that the service life of buildings to achieve the desired engineering has become a hot issue of great concern.In this paper,to study the marine concrete structure,around the mineral admixture mechanism of steel corrosion in concrete,the impact of mineral admixture concrete protective layer corrosive conditions and corrosive cracking patterns such as cracking start,through the theoretical analysis and experimental study of the combination of mineral admixture corrosive protective layer of concrete cracking analysis of influencing factors.The results show that:With the water-to-binder(w/b) ratio,the fly ash content and the cover-to-diameter(c/d) ratio increases,concrete mineral admixture corrosive protective coating steel corrosion rate when the crack will also increase accordingly,with slag and silica fume content increases,reducing the rate of steel corrosion,a model to calculate the ratio of corrosion which taking into account of the factors above was proposed by non-linear regression according to the test data.The results calculated by the formula agree well with of the measured results.

Related Dissertations

  1. Soil Accelerated Corrosion and Protection of Grounding Net,TG172.4
  2. Study on Bridge Cable Steel Wires Corrosion Behavior in Simulated Acid Rain and Service Life Prediction,TG174.1
  3. R.C. Trestlework Durability Evaluation,U448.34
  4. Study on Durability of Diaphragm Wall of Subway Station,U231.3
  5. Predicting Durable Service Life of Reinforced Concrete Exposed to Chloride Environment,TU375
  6. Using Durability Assessment of R.C. Structures and Its Engineering Appliance,TU375
  7. Study on the Anchorage Mechanism and Durability of Interior Bond Section of Prestressed Anchorage Cable,TU470.3
  8. Damage Mechanics Study of Environment Corrosion Combining with Stress and Prediction of Structure Property,TG172
  9. Experimental Investigation of Corrosion-induced Cover Cracking of Fly Ash Concrete,TU375
  10. A Study on Correlation between Atmospheric Exposure and Laboratory-Accelerated Corrosion Tests of Zinc and Zinc Coatings,TG172
  11. Simulation of atmospheric corrosion accelerated testing and related research,TG172.3
  12. The Research on Bearing Performance of Corroded Reinforced Compressive Concrete Members,TU375
  13. The Influence of the Corrosion on the Fatigue Life and Crack Growth Rate of the Low-Carbon Steels,O346.1
  14. Behavior of fatigue damage in the complex environment of 2E12 aluminum alloy,V250.2
  15. Investigation on Flow Accelerated Corrosion of Carbon Steels for Pwr Secondary Piping,TL334
  16. Research on Anti-bending Capacity and Ductility of Corroded Reinforced Concrete Beam,TU375
  17. Research on Bearing Capacity and Durability of Existing RC Bridge Based on Performance Deterioration of Reinforcement,TU375
  18. Research on the Mechanical Properties of the Corroded Reinforcement Bar in Reinforced Concrete Structures,TU375
  19. Experimental Research on the Carrying Capacity of Corroded R.C. Columns,TU375
  20. Study on in-door Accelerated Tests of Atmospheric Corrosion of Aluminum Alloy,TG174

CLC: > Industrial Technology > Building Science > Building structure > Concrete structure,reinforced concrete structure > Reinforced concrete structures
© 2012 www.DissertationTopic.Net  Mobile