TITLE:
Application Research of Gravel and Machine-Made Sand along the KKH-2 Project in Pakistan on Asphalt Pavement
AUTHORS:
Jun Hu, Xiao Tian, Gang Wang, Zhiqiang Wang
KEYWORDS:
Pakistan KKH-2 Project, Stone along the Line, Machine-Made Sand Concrete, Experimental Research
JOURNAL NAME:
World Journal of Engineering and Technology,
Vol.7 No.4,
November
7,
2019
ABSTRACT: According to the characteristics of stone along the KKH-2 project in Pakistan, the applicability of gravel and machine-made sand for road engineering was studied. Through investigation, the types of stone along the project were relatively simple, and the stone materials used for road construction were mainly limestone, sandstone and pebbles, and the reserveswereabundant. The experiment research and analyses comparisons of the parameters and road performance characteristics of natural gravel materials were carried out, and the design parameters and road performance indicators of natural grit in the current code were supplemented and adjusted to make it more suitable for Pakistan to use natural gravel materials for road construction. Thesis combines the project,proposing that mechanism sand and natural sand mixed concreteisnot inferiortonatural sand mixed concrete in terms of technical performance, and the overall cost is lower than that of natural sand mixed concrete. The research results are of great significance for saving engineering construction costs, ensuring road performance and prolonging service life.