Comparison between cement and fly ash geopolymer for stabilized marginal lateritic soil as road material

Teerawattanasuk, Chairat; Voottipruex, Panich

doi:10.1080/10298436.2017.1402593

Cited by 45 publications

(15 citation statements)

References 21 publications

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“…The increase in strength is due to the ability of the alkaline activator to dissolve some of the silica and alumina present in the soil for geopolymerization to occur and also due to the pozzolanic reaction of geopolymer in lateritic soil. Similar assertion was made by Teerawattanasuk & Voottipruex. (2018) in their study of Comparison between cement and fly ash geopolymer for stabilized marginal lateritic soil as road material.…”

Section: Unconfined Compressive Strengthsupporting

confidence: 87%

Performance Evaluation of the Effect of Sodium Hydroxide on Geotechnical Properties of Lateritic Soil for Rural Road Construction

Abdulkarim

Umar

2020

FUOYEJET

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This study explored the potentials of sodium hydroxide (NaOH) for the improvement of the properties of lateritic soil (LS) intended for use as construction material for rural roads in the North-eastern part of Nigeria. The soil was classified as A-6(13) and CL according to the American Association of State Highway and Transport Officials (AASHTO M 145-2012) and the Unified Soil Classification System (ASTM D 2487-2011). The soil is treated to evaluate the effectiveness of NaOH in treating lateritic soil with 1, 3 and 7 molar concentration of NaOH and compacted using two methods of compaction, the British Standard Light (BSL) and British Standard Heavy (BSH). Unconfined compressive strength (UCS) and Californian bearing ratio (CBR) tests were conducted on the compacted specimens. The results obtained show a general improvement in the engineering properties of the soil with increase in molar concentration of NaOH, particularly, when compacted at the BSH energy level. The maximum 7 days UCS values of 909 kN/m2 and 1106 kN/m2 were obtained at 7 molar concentration for the BSL and BSH energy levels. These values are within the range of 750 – 1500 kN/m2 UCS value specified by the Nigerian General Specification (2013) for sub-base materials. In the case of the CBR, at 3 and 7 molar concentrations for BSH effort, CBR values of 33% and 38% were recorded while 34% CBR value was recorded at 7 molar concentration for BSL effort, these values also met the minimum requirement of 30% CBR specified by the Nigerian General Specification for sub-base construction.Keywords— Lateritic, Sodium hydroxide, Soil, Rural roads.

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Section: Unconfined Compressive Strengthsupporting

confidence: 87%

Performance Evaluation of the Effect of Sodium Hydroxide on Geotechnical Properties of Lateritic Soil for Rural Road Construction

Abdulkarim

Umar

2020

FUOYEJET

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“…Therefore, additional research is necessary to determine the possibility of employing GGBFS and fly ash as soil stabilizers in increasing soil compression strength and shortening the curing time in order to maximize soil power. Geopolymers have recently been shown to be an effective replacement to Portland cement for reinforcing degraded soils; hence, geopolymers can be pushed for their suitability for use as a concrete substitute [ 52 , 53 , 54 , 55 ].…”

Section: Soil Stabilization By Conventional Methodsmentioning

confidence: 99%

“…The manufacturing of conventional soil stabilizers such as cement and lime results in considerable CO 2 and energy emissions [ 47 , 48 , 49 ]. Therefore, civil engineering firms are continuously on the search for the new soil stabilizer, a low-carbon, sustainable substance, to be employed to replace cement as a soil stabilizer [ 47 , 50 , 51 , 52 , 53 , 54 , 55 ]. Geopolymerization is the process of polymerizing inorganic natural materials to form geopolymers [ 43 , 56 , 57 ].…”

Section: Introductionmentioning

confidence: 99%

“…Geopolymerization is the process of polymerizing inorganic natural materials to form geopolymers [ 43 , 56 , 57 ]. Geopolymers have recently been shown to be a viable alternative to Portland cement for reinforcing degraded soils [ 52 , 53 , 54 , 55 ]. Geopolymers have outstanding engineering properties, such as increased strength and improved soil adhesion [ 36 , 40 , 56 ].…”

Section: Introductionmentioning

confidence: 99%

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Potential of Soil Stabilization Using Ground Granulated Blast Furnace Slag (GGBFS) and Fly Ash via Geopolymerization Method: A Review

et al. 2022

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Geopolymers, or also known as alkali-activated binders, have recently emerged as a viable alternative to conventional binders (cement) for soil stabilization. Geopolymers employ alkaline activation of industrial waste to create cementitious products inside treated soils, increasing the clayey soils’ mechanical and physical qualities. This paper aims to review the utilization of fly ash and ground granulated blast furnace slag (GGBFS)-based geopolymers for soil stabilization by enhancing strength. Previous research only used one type of precursor: fly ash or GGBFS, but the strength value obtained did not meet the ASTM D 4609 (<0.8 Mpa) standard required for soil-stabilizing criteria of road construction applications. This current research focused on the combination of two types of precursors, which are fly ash and GGBFS. The findings of an unconfined compressive strength (UCS) test on stabilized soil samples were discussed. Finally, the paper concludes that GGBFS and fly-ash-based geo-polymers for soil stabilization techniques can be successfully used as a binder for soil stabilization. However, additional research is required to meet the requirement of ASTM D 4609 standard in road construction applications, particularly in subgrade layers.

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“…The CBR value for unsoaked conditions increases due to mixes offering more resistance due to better packing of different sized fractions. Further, for curing samples rapid improvement in the CBR value has been observed this can be attributed to the less attraction of water during the curing process as a result of the dense microstructure of soil particles due to gel formation [17,19,39,40].…”

Section: California Bearing Ratio (Cbr) and Resilient Modulus (Mr)mentioning

confidence: 95%

Partial Replacement of Conventional Material with Stabilized Soil in Flexible Pavement Design

2022

IJE

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Due to rapid urbanization and industrialization, the construction of roads increases rapidly for easy and fast transportation. Adequate land is not available everywhere to construct good roads; hence, roads are forcefully built on locally available soil such as loose soil or expansive soil. In this paper, an experimental investigation was carried out on low plastic soil (LPS) to enhance engineering properties by using chemical soil stabilization (fly ash-based geopolymer). The design of flexible pavement thickness was carried out for conventional and stabilized soil material using IITPAVE software as per IRC 37 guidelines. The results show the feasibility of fly ash-based geopolymer significant enhancement of strength were observed in terms of unconfined compressive strength (UCS) for various curing days (0 to 128 days), California bearing ratio (CBR), and Resilient modulus (MR). The microstructural analysis via Scanning Electronic Microscope (SEM) and X-Ray Diffraction Analysis (XRD) was also reveling the formation of geopolymeric gel which leads to the dense matrix to soil mass. The flexible pavement thickness significantly reduces with the application of stabilized low plastic soil.

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Comparison between cement and fly ash geopolymer for stabilized marginal lateritic soil as road material

Cited by 45 publications

References 21 publications

Performance Evaluation of the Effect of Sodium Hydroxide on Geotechnical Properties of Lateritic Soil for Rural Road Construction

Performance Evaluation of the Effect of Sodium Hydroxide on Geotechnical Properties of Lateritic Soil for Rural Road Construction

Potential of Soil Stabilization Using Ground Granulated Blast Furnace Slag (GGBFS) and Fly Ash via Geopolymerization Method: A Review

Partial Replacement of Conventional Material with Stabilized Soil in Flexible Pavement Design

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