Jambi and Palembang clay soil stabilization for pavement matrix in road construction by using Portland cement type I

Wawan Kuswaya,Syafalni Syafalni,Wahyudi Marsiano,Jonbi Jonbi,M Olivia,G Pringgana,G Wibisono,E Saputra,M Infantri Yekti,D Wishart,A Marto,I.M Agus Ariawan,R Ridwan,I.D Ketut Sudarsana,K Yamamoto,D Andrio

doi:10.1051/matecconf/201927605005

Abstract

The need for a pavement matrix in road construction, especially in Sumatra area, is now more difficult and expensive because the deposit materials are concentrated in Java and most of them are not available. For this reason, soil stabilization is a way out of this problem. On this basis it is necessary to conduct stabilization research with highly active stabilization material by using Portland cement type I. The soil to be stabilized is clay soil which is derived from the areas of Jambi and Palembang and which has a low CBR value less than the requirement for sub base or pavement (< 10%), with the expected CBR value of stabilization to be suitable for road construction. This research covers physical and soil mechanical properties which are compaction parameter and CBR value with 3 days of dry curing time and 4 days of soak curing time using ASTM test procedure. Variations of cement addition were used of 6%, 8%, and 10% for the clay soil from Palembang and 8%, 10%, and 12% for the clay soil from Jambi, by percentage of dry weight of the sample test. The results of this study showed that the CBR value significantly increased with the addition of cement, with Palembang soil CBR value rising from 3.46% to 130.74% and Jambi soil CBR value rising from 7.20% to 206.43% respectively.

Highlights

The lack of accessibility of high-quality materials and the increased costs associated with the use of these materials have necessitated engineers to use local soils
The condition was due to the California bearing ratio (CBR) value with stabilizer content in https://doi.org/10.10 51/matecconf /201927605005
Jambi soil my stern from its high plasticity index and high clay content that will influence by the moisture content of the soil [9]

Summary

Introduction

The lack of accessibility of high-quality materials and the increased costs associated with the use of these materials have necessitated engineers to use local soils. In such cases, the subgrade soil and its properties are important in the design of pavement structure as it has to give adequate support to the pavement, for which it has to possess sufficient strength and stability even under adverse traffic and climatic condition. The selection of type and determination of the percentage of https://doi.org/10.10 51/matecconf /201927605005 additive to be used is dependent upon the soil classification, and the degree of improvement in soil quality desired [1,2,3]

Methods

Results

Discussion

Conclusion