关于干法与湿法制备水泥土研究分析
毕业论文关键词 水泥土 工程性能 干法制备 湿法制备 比重控制
Title Analysis and Study on Dry Method and Wet Method to Make Coment Soil
Abstract Cement soil is an integral, calculous and water-stability material, which is produced by the physical-chemistry, reaction between cement and soil, through stirring them.Since the nineteen eighties, The application of soil cement is largely extended in China. It and its relative methods of foundation treatment are usually used on mud, bottom clay, clayey soil and silty soil with bearing, capacity under 120kPa.Before our experiment, we collected the relevant data, analysed the basic properties and hardening theory of soil cement in detail, laying the theoretical foundation for the experiment. Previous researches on cement soil mostly obey the Specification for mix proportion design of cement soil （JGJT 233-2011） ,they use dry soil for experients. However, in site operation, we use the wet soil directly. There must be some differences between them. In order to provide reference data for engineering, for the same kind of soil, we make briquettes with dry soil and wet soil respectively, then test their unconfined compressive strength and other data, establish the relationship between the rate of water content and its specific gravity. We present a new controlling parameter, found the relationship between the specific gravity and their compression strength. Then, we make cement soil briquettes of different compression strength through controlling their specific gravity directly. By the way, we use the wet soil directly to make a great deal of cement soil for experient, accumulate reference material for the application and extension of soil cement.
Key words Cement Soil Project Performance Dry Method Wet Method Proportion Control
目次
1引言.1
1.1立题依据.1
1.2水泥土概述..2
1.3水泥土的研究现状..5
1.4研究路线.8
1.5研究内容.8
2水泥土工程性能及应用..10
2.1水泥土硬化机理10
2.2水泥土力学性能14
2.3水泥土施工工艺19
2.4水泥土的工程应用.20
3干法制备与湿法制备的对比.24
3.1水泥土原料的准备.24
3.2水泥土配合比设计.25
4实验实施..28
4.1泥浆制备28
4.2确定泥浆基浆比重.29
4.3制备水泥土试块30
4.4用湿土制备大量水泥土试块..31
4.5对水泥土试块进行单轴无侧限抗压强度试验32