Experimental Study On The Solidified Soil In Road Base With Performance

With the continuous development of society, gradually increasing the amount of road construction in our country. The traditional road materials such as sand, stone mining has serious damage to the environment, caused a lot of waste. The rapid growth of the engineering construction to make the whole society pay too much cost. The important issues of common concern around the world is to save resources, protect the environment. Soil curing agent which is a new environmental protection material is economic, engineering properties of good stability. This is a revolution for road construction.At the beginning of the show to some economic benefits and the significance of sustainable development of stabilized soil road base material. The development origin of soil curing agent technology. At present domestic and foreign research results and research status. Researchers at home and abroad and the research status of solidified soil pavement base and application in recent years,and the domestic part of the test road. Basic technical indexes of stabilized soil is put forward. Describe the development of the stabilized soil base at this stage facing the difficulties from two aspects of economic and comprehensive.Classification of solidified soil has a variety of forms. The paper from four aspects of in-depth analysis of the curing mechanism, respectively is high polymer soil curing agent, surfactant soil curing agent, biological enzymes soil curing agent and powder soil curing agent. To compare it with the traditional soil reinforcement materials.According to the distribution of the soil in Liaoning province. Choose three representative soil and respectively from three manufacturers of 5 kinds of soil curing agent. Raw material test firstly, including screening, liquid and plastic limit, etc, named soil samples. Study the moisture content and dry density of stabilized soil base materials influencing factors through the compaction test. Calculate the optimum moisture content and maximum dry density of three separate soil sample and three mixed soil.The mix design is based on the 7d unconfined compressive strength test. Study of different curing agent and binder influence on the strength of different soil. Choose mix scheme, experiment research for different age specimen of unconfined compressive strength, splitting strength and compressive modulus of resilience. To explore how to affect the comprehensive effect of these strength index of curing agent and binder. Degree of compaction and the delay time on the material strength of the impact analysis in the process of fabrication. From the durability of solidified soil base, test analysis of water stability, dry wet circulation, water absorption, permeability, freeze-thaw cycle. Summed up the curing agent has good effect on improving the dry wet circulation, impermeability, freeze-thaw cycle, but no obvious effect on water stability and water absorption.