Influence on CBR for Graded Crushed Rock on the Base of Port

Pu Yuan; Rui Bo Zhou; Zhi Liang Dong; Yan Luo

doi:10.4028/www.scientific.net/AMR.838-841.962

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 838-841Influence on CBR for Graded Crushed Rock on the...

Influence on CBR for Graded Crushed Rock on the Base of Port

Abstract:

California bearing ratio (CBR) test was carried out, CBR changing laws of different graded crushed rocks were analyzed, an aggregate gradation on the base of port was put forward, and its performances were verified through laboratory test. Test result shows that the main skeleton structure composed of the aggregate with diameter 19mm-4.75 mm has interlocked force, and the optimal mass fraction is 90%~65%. The aggregates with diameter 4.75mm-0.075mm have the effects of filling the void of main skeleton structure, whose optimal mass fraction is 10%-35%.And the optimal mass fraction of the aggregate with diameter 19mm-9.5 mm is 25%.When the optimum proportion of coarse aggregate to middle aggregate is 25:40, the CBR value of coarse-middle-fine combined aggregate reaches the highest point, and is more than 158.97%, and the ratio reached 377%. On this basis, the optimal aggregate gradation of graded broken stone is reference on design and construction of graded crushed rock on the base of port.

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Periodical:

Advanced Materials Research (Volumes 838-841)

Pages:

962-966

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.838-841.962

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Online since:

November 2013

Authors:

Pu Yuan*, Rui Bo Zhou, Zhi Liang Dong, Yan Luo

Keywords:

Aggregate Gradation, Broken Stone, CBR Test, Pavement Engineering, Port

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* - Corresponding Author

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