Study On The Soil Curing Agent Used In The Foundation Of Highway Soil

Now most of the highway subgrade is the use of various sizes of paving stone after crushing strength. The construction process requires a lot of transport all kinds of stone material, artificial and mechanical consumption is huge, the cost is higher also. In this paper we consider using soil curing agent for sand or soil curing, so that instead of the original rock foundation.Soil curing agent is a kind of by a variety of inorganic and organic composite materials. Soil curing agent is a new kind of earthwork composite material, is used for reinforcement of soil. Force variability in the change of the original soil loose, such as physical properties, mechanical properties, it has excellent performance. Soil firming agent is the construction area of the original soil and curing agent by mechanical stirring evenly mixed. After mixing through a series of soil firming agent and soil dissolved ionization, thus change of soil moisture content, porosity, lower cementing soil particles and so on. Also can improve the stiffness and strength of the soil at the same time, makes the soil into a compact, high performance gel material. At the same time, if the soil curing agent after curing, also has the water stability, crack resistance and so on a series of road performance. In highway subgrade construction process, we proposed a lot of soil stabilizer solidified soil is used to replace the original gravel compaction foundation, so there will always be lower engineering cost, simple construction technology, excellent performance, convenient construction, short construction period, wide using range and so on a series of advantages. If can reduce the use of gravel with large extension at the same time, in order to reduce the transportation cost in engineering to achieve the effect of environmental and economic benefits are good. In this paper, based on into south highway project, discussed the construction process of soil stabilizer stable sand and road performance, soil stabilizer for the comprehensive popularization and application in the future lay a certain foundation, application value.In this paper, the first part is to ask questions, mainly simply in this paper, the research purpose and meaning, and the research achievements of domestic and foreign experts and scholars and literature review. The second part is the strength formation mechanism is analyzed, first of all, this paper expounds the mechanical compaction, secondly, analyses the chemical reaction process. The third part is all sorts of mix proportion experiment, soil stabilizer is mainly to study stable sand mixture ratio test. First of all, the paper analyzes the engineering properties of raw materials, and puts forward various mixing ratio. Secondly, according to the cooperation and competition on the mixture compaction test and unconf ined compressive strength test 7 days. Compares the performance of various mixture. The fourth part is the in-depth analysis to south highway project as an example, studied the soil curing agent on the road foundation application feasibility and design the experiment scheme. Second, respectively, to carry out the mechanical property test, water stability performance test, such as drying shrinkage characteristic test experiment. Experimental results show that the soil curing agent used in the strength and stiffness of highway foundation can meet the design requirements, fully meet the needs of the construction. The fifth part is the site construction, through the experimental road 200 meters, the scene in the third chapter is the best mixture ratio of mixture allocate, instead of the original design of the rock foundation. And the finished product experiments. The sixth is divided into conclusion and prospect.