Excessively Wet Subgrade Improvement with 100% Industry By-Products for Heavy Traffic Pavement – I. Solidification and Compaction Characteristics of Treated Soil

Abstract:

Article Preview

Deformation of excessively wet subgrade is often problematic during pavements construction as well as under regular vehicular traffic loads. In order to create a sturdy and stable platform for heavy traffic pavement, a “green materials” based entirely on industry byproduct of combination fly ash (FA) with carbide lime (CL) and flue gas desulfurization gypsum (FGDG) was proposed in this study. In order to investigate the effectiveness and improvement of engineering properties, solidification test and compaction test were carried out in laboratory, and Dynamic Cone Penetrometer (DCP) was conducted at the construction site. Investigation results showed significant improvement in drying rate, workability, and mechanical behavior. The addition of FA/CL/FDG stabilizer increases the solids content by “bulking” and reduces the free moisture through hydration reactions. The addition of FA/CL/FGDG leads to an increase of approximately 18% in the maximum allowable moisture content, which would largely facilitate the compaction of the excessively wet soils. Post construction evaluation using DCP indicates the stabilized soil can be utilized under high volume traffic condition.

Info:

Periodical:

Advanced Materials Research (Volumes 113-116)

Edited by:

Zhenyu Du and X.B Sun

Pages:

1560-1564

DOI:

10.4028/www.scientific.net/AMR.113-116.1560

Citation:

X. Z. Yuan et al., "Excessively Wet Subgrade Improvement with 100% Industry By-Products for Heavy Traffic Pavement – I. Solidification and Compaction Characteristics of Treated Soil", Advanced Materials Research, Vols. 113-116, pp. 1560-1564, 2010

Online since:

June 2010

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.