Composite material for consolidated soil pavement base course and construction method thereof

Abstract

Disclosed is a material for composite consolidating earthen road surface and construction method thereof, wherein the said material comprises: sandy soil ranging from 92-98% by wt, 2-8% by wt of cement, ZL-1 liquid curing agent or EN-1 liquid curing agent ranging from 0.1-0.3 permillage of by gross weight of gray soil mixture; or silty soil or clayey soil ranging from 90-96% by wt, 4-10% by wt of lime, ZL-1 liquid curing agent or EN-1 liquid curing agent ranging from 0.1-0.3 permillage by gross weight of gray soil mixture. The material for composite consolidating earthen road surface and its construction method takes extensively distributed soil as main material, reduces 20-50% construction costs, shortens construction time limit, resists freeze, and prolongs available construction time in northern area with early freezing time.

Description

technical field [0001] The invention relates to a material for a highway pavement base and a construction method thereof, in particular to a material for a pavement base built with composite consolidated soil and a construction method thereof. Background technique [0002] At present, the base course of highway pavement is usually made of fly ash gravel, cement stabilized gravel, lime soil, lime soil and other materials, among which fly ash gravel and cement stabilized gravel are generally used for the base of high-grade highways, while fly ash soil and lime soil are used It is used in the base layer of low-grade roads or the sub-base layer of high-grade roads. For these kinds of materials in the plain area, the cost of the project has been increased due to the outsourcing of a large number of materials and the long-distance road and rail transportation. For example, in the road construction in Songyuan area of ​​Jilin Province, the limestone crushed stone structure is adop...

AI Technical Summary

Problems solved by technology

The transportation and use of these materials seriously pollute the surrounding environment, and the large-scale mining of gravel and lime also destroys the ecological environment of mountainous areas, and also produces soil erosion, resulting in waste of resources and endangering sustainable economic development.

Moreover, the construction period of the conventional road repair method is longer, and the effective construction period is shortened in areas in the north where the freezing time is earlier.