An experimental investigation of the impact of specimen preparation and curing conditions on cement-treated material strength (deep mixing method)
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This is an Author's Original Manuscript of an article published by Taylor & Francis in Australian Journal of Civil Engineering on 26/9/2017 available online at http://www.tandfonline.com/10.1080/14488353.2017.1372685
In recent decades, the use of Deep Mixing Method (DMM) has developed considerably and its applications are increasing continuously. Although during the past few decades various DMM techniques and methods have been introduced in different projects, there are many changing parameters which make it necessary to evaluate the impact of each condition in any specific project. The present laboratory study has been carried out to determine the impact of mixer type and curing time and conditions on soil stabilised with cement as used in soil mixing methods. Three different types of soil have been used in this research. Unconfined Compression Strength (UCS) and Secant Modulus (E 50 ) were chosen to assess the impact of various parameters on soil improvement in terms of strength. Results after a 28-day curing period indicate that the type of mixing method has a slight impact on the strength of all types of cement-treated soil. It is also concluded that different curing conditions and suction using various salt solutions have a significant impact on the strength of stabilised soil.
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