Construction method of composite consolidated soil pavement base course

Abstract

A composite consolidated soil pavement base material and its construction method, the material is composed of the following components by weight percentage: 92-98% of sandy soil, 2-8% of cement, ZL-1 containing 85% of sulfonic acid Or EN-1 liquid curing agent is 0.1-0.3‰ of the total lime-soil mixture; or ZL-1 with 90-96% silty soil or clay soil, 4-10% lime, and 85% sulfonic acid EN-1 liquid curing agent, 0.1-0.3‰ of the total amount of lime-soil mixture. The material and construction method of this kind of composite consolidated soil pavement base uses widely distributed soil as the main material, which can use local materials, reduce the construction cost by 20-50%, have early strength, shorten the construction period, and resist frost. Areas can extend the effective construction period.

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.

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