Title :
Pavement performance of ‘two asphalt one aggregate’ waterproof
Author :
Li, Zhen-xia ; Chen, Yuan-zhao
Author_Institution :
Sch. of Civil Eng. & Commun., North China Univ. of Water Resources & Electr. Power, Zhengzhou, China
Abstract :
The damage of waterproof is a main reason that causes the bridge pavement diseases. Controlling the quality of cementing material is an effective measure to improve the endurance of bridge pavement. ´Two asphalt one aggregate´ is put forward to solve the problem of ´white aggregate´ appeared on the shearing destruction interface of synchronous crushed stone, The asphalt optimum dosage of ´two asphalt one aggregate´ is recommended applying the shear test and pullout test in laboratory. Pavement performance of ´two asphalt one aggregate´ is studied, and its applicability is studied too. The results show that the shear strength and tensile strength of ´two asphalt one aggregate´ are improved 12% and 52% respectively than that of synchronous crushed stone when the asphalt dosage of it adopts the recommended optimum dosage. While the corresponding asphalt dosage increases 7.1% only, which shows ´two asphalt one aggregate´ has good bond behavior.
Keywords :
aggregates (materials); asphalt; bridges (structures); cements (building materials); durability; roads; shear strength; tensile strength; asphalt dosage; bond behavior; bridge pavement endurance; bridge pavement performance; cementing material; pullout test; shear strength; shear test; shearing destruction interface; synchronous crushed stone; tensile strength; two asphalt one aggregate waterproof; white aggregate; Aggregates; Asphalt; Bridges; Concrete; Educational institutions; Seals; Shearing; Pavement Performance ‘two asphalt one aggregate’; applicability; bridge pavement; waterproof;
Conference_Titel :
Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on
Conference_Location :
Lushan
Print_ISBN :
978-1-4577-0289-1
DOI :
10.1109/ICETCE.2011.5774251
