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Study on the Road Property of Admixtures Concrete Road

Author: YangZhe
Tutor: ChenShuanFa
School: Chang'an University
Course: Road and Railway Engineering
Keywords: Cement Concrete Admixtures Road performance Microscopic analysis Modification Mechanism
CLC: U414
Type: Master's thesis
Year: 2011
Downloads: 32
Quote: 0
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Abstract


Cement concrete pavement has been widely used because of its conservation workload is small , less energy consumption , simple construction and environmental adaptability advantages , an important form of one of the road surface . Portland cement concrete brittleness , durability defects and poor , its application has been limited in the road works . By adding mineral admixtures and powder polymer concrete to improve the road performance . In reference to the basis of the research status on a large number of theoretical analysis and laboratory tests to study the types of admixtures ( fly ash, slag powder and powder polymer ) blend ( single blending complex doped ) and ash on the concrete road performance , and by of admixture road concrete interfacial transition zone microstructure analysis reveal the improvement mechanism . Given single- doped and doped complex different Experimental study of the mechanical properties of concrete admixtures , analysis of the types of admixtures , blended manner and dosage of the concrete compressive strength , flexural strength and the brittleness of different admixture single doped and complex doped best content range ; Experimental study of single the doped and complex doped admixture concrete durability , analysis of the types of admixtures , blended manner and dosage of concrete resistance grinding , penetration and frost resistance and comparative analysis of the admixture type under in Jiaoyou ash concrete mechanics and durability ; Finally, the angle from concrete microscopic morphology by scanning electron microscopy of mineral additives reinforced concrete aggregate material and powder polymer interfacial transition zone SEM analysis , from microscopic analysis of the mechanism of its strength and durability improvement , and mechanical properties and durability test analysis to determine the optimum admixture combinations , and to the best content .

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CLC: > Transportation > Road transport > Road works > Road construction materials
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