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.

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.

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 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

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.

scholarly journals Research on Application Effect of Mixconverter in Cement Concrete Pavement

2021 ◽  
Vol 261 ◽  
pp. 02075
Author(s):  
Tao Wang ◽  
Tao Liu ◽  
Xiayi Liang ◽  
Hanxin Wei ◽  
Zhigang Zheng ◽  
...  
Keyword(s):  
Bending Strength ◽  
Concrete Strength ◽  
Chloride Ion ◽  
Concrete Pavement ◽  
Hydration Reaction ◽  
Cement Concrete ◽  
Road Pavement ◽  
Cement Concrete Pavement ◽  
Improvement Effect ◽  
Research On Application

In order to improve the strength of cement concrete pavement and reduce pavement cracking, the application effect of the hydration reaction enhancer Mixconverter in cement concrete pavement was studied by testing the compressive strength, bending strength, crack resistance and chloride ion permeability of concrete indoors. The test results show that the addition of Mixconverter to concrete can significantly improve the compressive and flexural strength of concrete, effectively prevent the expansion of plastic shrinkage and cracking of concrete, and significantly reduce the chloride ion diffusion coefficient. Finally, the test road pavement further proves the improvement effect of Mixconverter on concrete strength and cracking.

Stress Analysis of Cement Concrete Pavement under Overweight Loads

2012 ◽  
Vol 446-449 ◽  
pp. 949-953
Author(s):  
Ya Ni Lu ◽  
Tao Li Xiao
Keyword(s):  
Finite Element ◽  
Regression Analysis ◽  
Finite Element Model ◽  
Element Model ◽  
Concrete Pavement ◽  
The Other ◽  
Tension Stress ◽  
Statistical Regression ◽  
Cement Concrete ◽  
Cement Concrete Pavement

Special load has produced serious damage to the concrete pavement because of the great gross weight and heavy axle load, but the present specification has not mentioned this kind of load. On this occasion, Several conditions of critical load are identified through ANSYS finite element model analysis and the formula through statistical regression analysis to the bottom maximum tension stress is drawn up. Which can not only guide the concrete pavement design under the special load but also the result may be referred by the other kinds of engineering.

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