SOIL STABILIZATION USING CONSOLID SYSTEM

• Main Author: SINURAT, HULMAN
• Format: Theses
• Language: Indonesia
• Subjects: Teknik sipil
• Online Access: https://digilib.itb.ac.id/gdl/view/2894
• Institution: Institut Teknologi Bandung

SOIL STABILIZATION USING CONSOLID SYSTEM, Hulman Sinurat, 1997 Program Magister Sistem dan Teknik Jalan Raya, Program Pascasarjana, Institut Teknologi Bandung. This Thesis describes a laboratory investigation of soil stabilization using the 2-component Consolid System. Three soils were selected for investigation : Soil A is classified as CH/A-7 and has a soaked CUR value of 4.84 %; Soil B is classified as SC/A-4 and has a soaked CBR value of 6.36 %; Soil C is classified as SM/A-3 and has a soaked CBR value of 34.92 %. Soil A was sampled at Tanjung Sari, West Java and Soils B and C at Palembang, South Sumatera. The two components of the Consolid System investigated were Consolid 444 (C444) and Conservex (Cx). The amounts of these additives investigated covered the ranges recommended by the manufacturer. The parameter used to characterize strength was CBR value; an attempt to use the unconfined compressive strength test (UCS) was unsuccessful. The influence of curing time on strength development was investigated. The test programme was devised to determine the amount of Consolid 444 that needed to be added to soil compacted to standard maximum dry density in order to optimize strength; the optimum amount of Consolid 444 was determined from 7-day CBR values. The same criterion was used to optimize the amount of Conservex added to the soil prepared at optimum Consolid 444 content. The optimum amounts of Consolid 444 were determined to be 550 cc/m3 for Soil A and 650 cc/m3 for Soils B and C. The optimum amount of Conservex was determined to be 10 It/m3 for all soil types; amounts in excess of this resulted in a reduction in soil strength. Addition of the optimum amount of Consolid 444 to Soils A, B and C increased CBR value by 166 %, 32.8 % and 6.7 %, respectively. Addition of Conservex to Soil A treated with Consolid 444 further increased CBR value by 30 %. Addition of Conservex to Soils B and C treated with Consolid 444 resulted in a marginal reduction in the CBR of Soil B and a 12.6 % increase in the CBR of Soil C. Addition of Consolid 444 did not improve significantly the resistance to water of any of the soils investigated; a significant improvement was observed when Conservex was added. From considerations of strength improvement alone, only Soil A appears to be a viable candidate for stabilization with the Consolid System.