The Improvement of Engineering Properties of Expansive Soil using Lime and Ground Granulated Blast Furnace Slag

Abstract: Soil stabilization has become the more issue in construction activity. In this study we focus on improvement of soil by using Fly ash and ground granulated blast furnace slag (GGBS). In many villages there was demolition of houses due to flood situation and landslide so stabilization of soil is very important factor in this area. In these studies we use local Fly ash and Ground granulated blast furnace slag (GGBS) for stabilization of soil. Soil are generally stabilized to increase their strength and durability or to prevent soil erosion. The properties of soil vary a great deal at different places or in certain cases even at one place the success of soil stabilization depends on soil testing. Various methods are there to stabilize soil and the method should be verified in the lab with the soil material before applying it on the field. The various percentages of Fly ash and GGBS were mixed with soil sample to conduct soil test. Using fly ash reduces the plasticity index which has potential impact on engineering properties also GGBS has cementations property which acts as binding material for the soil. On addition of 15% Fly ash and 5% GGBS increase the strength of soil (according to IS2720:1985) it’s recommended for better result. Keywords: Stabilization of soil, Fly ash, GGBS, Black cotton soil, Soil test.

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Effect of Ground Granulated Blast Furnace Slag and Fly Ash on Geotechnical Properties of Expansive Soil

Lecture Notes in Civil Engineering - Proceedings of the Indian Geotechnical Conference 2019 ◽

10.1007/978-981-33-6370-0_20 ◽

2021 ◽

pp. 217-227

Author(s):

Parmanand Meena ◽

J. K. Sharma ◽

Biswajit Acharya

Keyword(s):

Blast Furnace ◽

Fly Ash ◽

Blast Furnace Slag ◽

Expansive Soil ◽

Geotechnical Properties ◽

Granulated Blast Furnace Slag ◽

Furnace Slag

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Engineering properties and carbon footprint of ground granulated blast-furnace slag-palm oil fuel ash-based structural geopolymer concrete

Construction and Building Materials ◽

10.1016/j.conbuildmat.2015.10.026 ◽

2015 ◽

Vol 101 ◽

pp. 503-521 ◽

Cited By ~ 43

Author(s):

Azizul Islam ◽

U. Johnson Alengaram ◽

Mohd Zamin Jumaat ◽

Iftekhair Ibnul Bashar ◽

S.M. Alamgir Kabir

Keyword(s):

Blast Furnace ◽

Palm Oil ◽

Blast Furnace Slag ◽

Engineering Properties ◽

Geopolymer Concrete ◽

Palm Oil Fuel Ash ◽

Granulated Blast Furnace Slag ◽

Fuel Ash ◽

Oil Fuel ◽

Furnace Slag

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Novel Approach to the Treatment of Gypseous Soil-Induced Ettringite Using Blends of Non-Calcium-Based Stabilizer, Ground Granulated Blast-Furnace Slag, and Metakaolin

Materials ◽

10.3390/ma14185198 ◽

2021 ◽

Vol 14 (18) ◽

pp. 5198

Author(s):

Khaled Ibrahim Azarroug Ehwailat ◽

Mohd Ashraf Mohamad Ismail ◽

Ali Muftah Abdussalam Ezreig

Keyword(s):

Blast Furnace ◽

Blast Furnace Slag ◽

Expansive Soil ◽

Soil Samples ◽

Granulated Blast Furnace Slag ◽

No Formation ◽

Novel Approach ◽

Furnace Slag ◽

Gypseous Soil ◽

Considerable Damage

Gypseous soil is one type of expansive soil that contains a sufficient amount of sulphate. Cement and lime are the most common methods of stabilizing expansive soil, but the problem is that lime-treated gypseous soil normally fails in terms of durability due to the formation of ettringite, a highly deleterious compound. Moisture ingress causes a significant swelling of ettringite crystals, thereby causing considerable damage to structures and pavements. This study investigated the suitability of various materials (nano–Mg oxide (M), metakaolin (MK), and ground granulated blast-furnace slag (GGBS)) for the stabilization of gypseous soil. The results showed soil samples treated with 20% M-MK, M-GGBS, and M-GGBS-MK to exhibit lower swelling rates (<0.01% change in volume) compared to those treated with 10% and 20% of lime after 90 days of curing. However, soil samples stabilized with 10% and 20% binder of [(M-MK), (M-GGBS), and (M-GGBS-MK)] exhibited higher strengths after 90 days of soaking (ranging from 0.96–12.8 MPa) compared to those stabilized with 10% and 20% lime. From the morphology studies, the SEM and EDX analysis evidenced no formation of ettringite in the samples stabilized with M-MK-, M-GGBS-, and M-GGBS-MK. These results demonstrate the suitability of M-MK, M-GGBS, and M-GGBS-MK as effective agents for the stabilization of gypseous soil.

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