Cured Sand Compacted Soil Compressive Properties And Application Technology Research

Soil curing agent in China is comparatively mature all areas of application, but in terms of road construction, it mainly applied in high grade highway, relative to the traffic volume is small, the path towards the building of the standard is not high, its application case is less, and road construction in the process of adding the composition is relatively fixed, there is a lot of room for improvement. In this paper, the author studies on curing the sand compacted soil is put forward to lower cost, rich content and easy to obtain the fine sand as the important component of cured sand compaction soil, In view of the countryside bearing capacity and rural roads of building standard request is not high, the unity of the roadbed solidification sand compacted soil of construction methods, materials, etc.Combined with curing sand compacted soil engineering application requirements and the special properties of the soil curing agent.Draw lessons from the domestic and foreign research results, this paper studied the solidified soil sand to consolidate the unconfined compressive strength, and curing sand compacted soil preparation process, obtained the suitable for curing sand mixture ratio design principle and calculation method of the compacted soil.(1)On the basis of reference to general mixture ratio design of stabilized soil preparation curing sand compacted soil, moisture content are researched, curing agent, dosage of cement, sand and fine sand content on curing compacted soil unconfined compressive strength of the influence law of the obtained should focus on the control of the design indexes and the reasonable range. Studied cured sand compacted soil in the process of its curing unconfined compressive strength of the law of development.(2)On the basis of the previous test, unconfined compressive strength of orthogonal experiment was carried out, and the test result of variance analysis, the design indexes is studied on the influence degree of the controlled variable and law, based on unconfined compressive strength of balance analysis, obtained the solidified soil sand to consolidate the optimal mixture ratio.(3)The unity of roadbed and curing sand coMPacted soil application technologyThe bearing capacity and the construction of the standard is not high road(rural small roadway, park road, etc.), the unity of the roadbed solidification sand coMPacted soil construction technological process, explore the low-cost way to build economic and practical technology.This study obtained a lot of experiment data and achieved certain results, the soil curing agent in the future is important reference value to the research and application of the stabilized soil, for the practice and application of soil stabilizer with solidified soil provides a theoretical guidance.