Effect of Stabilized Laterite on California Bearing Ratio (CBR) and Unconfined Compressive Strength (UCS)

 

Ahmad Safuan A Rashid

Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM, Skudai, Johor, Malaysi
e-mail: ahmadsafuan@utm.my

Zuraida Zainudin

Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM, Skudai, Johor, Malaysia

Norhazilan Md Noor

Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM, Skudai, Johor, Malaysia

Haryati Yaacob

Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM, Skudai, Johor, Malaysia; e-mail: haryati@utm.my

 ABSTRACT

This paper presents the result of California Bearing Ratio (CBR) and Unconfined Compressive Strength (UCS) of stabilized subgrade laterite. Standard Proctor test have been conducted to determine Optimum Moisture Content (OMC) and Maximum Dry Density (MDD) of laterite soil stabilized with 0%, 7% and 13% of cement. A series of unconfined compressive strength tests and California bearing ratio tests have been conducted to determine the characteristics strength of laterite soil at optimum moisture content. The result of UCS test shows that strength is increases with addition of Ordinary Portland cement (OPC). It has been observed that the CBR values also increases with the increase in percentage of OPC. Overall, it has been observed that the OPC effectively increases the soil strength and hence make laterites are suitable material for pavement construction.

Keywords: Cement Stabilization; Laterite Soil; Standard Proctor Test; Unconfined Compressive Strength; and California bearing ratio.

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