Experimental Study of Sulfate Attack Resistance Performance on Cement Concrete Pavement

2014 ◽  
Vol 505-506 ◽  
pp. 270-273 ◽  
Author(s):  
Ji Feng Liang ◽  
Chao Zhang ◽  
Xin Yu Fang Wang
Keyword(s):  
Fly Ash ◽  
Mass Loss Rate ◽  
Immersion Test ◽  
Sulfate Attack ◽  
Concrete Pavement ◽  
Cement Concrete ◽  
Fly Ash Concrete ◽  
Cement Concrete Pavement ◽  
Resistance Performance

Airport concrete pavement in high latitude northwest area attacked by sulfate of different extent, which influence early strength and ultimate strength of cement concrete. In this paper, the double doped silica fume and fly ash concrete have been made long-term immersion test research. From the mass loss rate, compressive strength and flexural strength, effect on the corrosion resistance are studied with fly ash, silicon ash adding in a composite Portland cement. Methods to improve the performance of sulfate attack resistance are obtained by experiment.

Effects of Fly Ash Content on the Strength Property of Cement Concrete Pavement

2012 ◽  
Vol 174-177 ◽  
pp. 403-408
Author(s):  
Hong Guo Zhang ◽  
Xiu Shan Wang ◽  
Pei Wen Hao
Keyword(s):  
Fly Ash ◽  
Cement Mortar ◽  
Experimental Tests ◽  
Ash Content ◽  
Concrete Pavement ◽  
Cement Concrete ◽  
Addition Method ◽  
Cement Ratio ◽  
Cement Concrete Pavement ◽  
Mixing Proportion

Using ordinary material, calculating through the external addition method and then adjusting through experimental tests, the mixing proportion of cement mortar is determined. The testing results show that: when the water cement ratio is 0.50, the fly ash content is too large and the strength of cement mortar will sharply decrease with the increase of its content. Therefore, the fly ash content in engineering cannot exceed 30% of the gelled material.

Study for Frost Resistance of Cement Concrete Pavement with NanoSiO2 as Admixture

2014 ◽  
Vol 952 ◽  
pp. 47-50
Author(s):  
Wen Yong Yu ◽  
Ling Sun ◽  
Chen Long Wu ◽  
Chun Hong Shao
Keyword(s):  
Fly Ash ◽  
Frost Resistance ◽  
Plain Concrete ◽  
Concrete Pavement ◽  
Cement Concrete ◽  
Cement Concrete Pavement ◽  
Mixed Concrete

With the study of frost resistance of plain concrete and mixed concrete with fly-ash substituted and mixed concrete with fly-ash substituted and nanoSiO2 as admixture, the outcomes of the test go that the frost resistance of concrete with nanoSiO2 will be increased considerably.

Study for Permeability of Cement Concrete Pavement with Nano-SiO2 as Admixture

2014 ◽  
Vol 584-586 ◽  
pp. 1577-1580
Author(s):  
Ling Sun ◽  
Guang Yuan Qi ◽  
Xiao Qin Zhang ◽  
Xiao Song Zhan
Keyword(s):  
Fly Ash ◽  
Chloride Ion ◽  
Plain Concrete ◽  
Concrete Pavement ◽  
Cement Concrete ◽  
Cement Concrete Pavement

With the study of permeability of plain concrete and concrete mixing with fly-ash and concrete mixing with fly-ash and nanoSiO2 as admixture for resistance to chloride ion, the outcome of the test goes that the permeability of concrete with nanoSiO2 for resistance to chloride ion will be increased considerably.

Development and Challenge of the Overlay Design for Old Cement Concrete Pavement

2013 ◽  
Vol 857 ◽  
pp. 183-189
Author(s):  
Feng Ma ◽  
De Jun Wang ◽  
Bao Jin ◽  
Fu Ming Liu ◽  
Yang Liu
Keyword(s):  
Concrete Pavement ◽  
Design Methods ◽  
Sensor Signal ◽  
Cement Concrete ◽  
Processing Technologies ◽  
The Real ◽  
Cement Concrete Pavement ◽  
Overlay Design

With the development of sensor, signal acquiring and processing technologies, amounts of overlay design methods for old cement concrete pavement have been proposed. However, there are difficulties in applying these methods to the real pavement under the long-term operational environments. In this study, the research achievements for resisting the generation and extension of reflection cracks of the old cement concrete pavement, developed over the last couple of decades and their applications, were summarized firstly, and then the primary challenge in applying these methods was discussed.

Study of Fly Ash Cement Concrete Pavement

2017 ◽  
Vol 4 (2) ◽  
pp. 1-6
Author(s):  
Anjali Yadav ◽  
◽  
Nikhil Kumar Yadav
Keyword(s):  
Fly Ash ◽  
Concrete Pavement ◽  
Cement Concrete ◽  
Cement Concrete Pavement
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