A kind of improvement method of laterite gravel pavement base

Abstract

The invention provides an improvement method of a red earth gravel pavement base. The improvement method includes the steps that exploration of a material yard is reported to a supervising unit timely; the mass ratio of red earth gravel and quartz fine-grained pebbles is determined to be 70% : 30% through an experiment; the quartz fine-grained pebbles and the red earth gravel are soaked into water, braised, stirred and filled; the base is paved and corrected timely; and the base is checked regularly to ensure normal construction of the pavement base. According to the improvement method of the red earth gravel pavement base, the red earth gravel along a road is selected to be mixed into local rich quartz fine-grained pebble particles, materials can be obtained from local sources and the material sources are sufficient, linkage of construction procedures is ensured, long-distance transportation cost and related labor cost are avoided, the production cost is saved by adopting a pebble mixing method on the red earth gravel, and the filling materials are easier to compact, the CBR values of the filling materials reach to specified requirements, the capability of the pavement to bear load is enhanced, and the construction schedule can be accelerated, and the project economic benefit is improved as well under the premise that the project quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of improvement of pavement base filler, in particular to a method for improving the base of laterite gravel pavement. Background technique [0002] Laterite gravel is widely distributed in Northwest Africa and is generally used as a base material for road pavement structures. However, natural laterite gravel is a base material for poorly graded road pavement structures. The CBR value cannot meet the requirements of existing specifications and road pavement. The construction technical requirements of the project. At present, on the one hand, the filler that meets the requirements is transported to the construction. The transportation distance is long and time-consuming, and the connection of various construction procedures cannot be guaranteed. The construction process is complicated, which virtually increases the construction cost and related labor costs; On the other hand, it is necessary to improve the lat...

AI Technical Summary

Problems solved by technology

[0002] Laterite gravel is widely distributed in Northwest Africa and is generally used as a base material for road pavement structures. However, natural laterite gravel is a base material for poorly graded road pavement structures. The CBR value cannot meet the requirements of existing specifications and road pavement. The construction technical requirements of the project. At present, on the one hand, the filler that meets the requirements is transported to the construction. The transportation distance is long and time-consuming, and the connection of various construction procedures cannot be guaranteed. The construction process is complicated, which virtually increases the construction cost and related labor costs; On the other hand, it is necessary to improve the laterite gravel in this area. The traditional improvement method is to add cement or lime, which not only increases the production cost, but also cannot guarantee the quality of the project, and the filler is not easy to compact