publication . Other literature type . Report . 2017

Chemical Modification of Uniform Soils and Soils with High/Low Plasticity Index

Fei Tao; Xuanchi Li; Antonio Bobet; Nayyar Zia Siddiki;
Open Access
  • Published: 23 Mar 2017
  • Publisher: Purdue University
  • Country: United States
Abstract
Lime and/or cement are used to treat weak subgrade soils during construction of highways. These chemicals are mixed with the soil to improve its workability, compactability and engineering properties. INDOT (Indiana Department of Transportation) has been using chemical modification of native soils for the past 20 years. In fact, 90% of current subgrade is treated, typically with quick lime, lime byproducts or cement. For pavement design, it is customary to not include any improvement of the subgrade for the design of the pavement layers. Recent research completed through JTRP (Joint Transportation Research Program) recommends a higher stiffness modulus for chemi...
Subjects
free text keywords: high/low plasticity soil, LKD, cement, modification, Plasticity Index, soil modification, lime and cement treated soil, highway subgrade soil, Civil and Environmental Engineering, Subgrade, Atterberg limits, Geotechnical engineering, Geology, Sieve analysis, Calcium oxide, chemistry.chemical_compound, chemistry, Soil water, Portland cement, law.invention, law, Lime, engineering.material, engineering
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