Improved mechanical and microstructure of cement-stabilized lateritic soil using recycled materials replacement and natural rubber latex for pavement applications

Tran, Ngoc Quynh; Hoy, Menglim; Suddeepong, Apichat; Horpibulsuk, Suksun; Kantathum, Karn; Arulrajah, Arul

doi:10.1016/j.conbuildmat.2022.128547

Cited by 31 publications

(11 citation statements)

References 51 publications

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“…The failure strain of the specimens increases with an increase in R , indicating that the expansive properties of stainless steel AOD slag play a vital role in improving the brittle behavior of the cement FA-stabilized RA specimens. Material toughness refers to a specimen’s ability to resist crack propagation, which can be assessed using the area under the stress strain curve of the specimen [ 43 ]. The results demonstrated that specimens A-31, A-22, A-13, and A-04 exhibited higher toughness than specimen A-40.…”

Section: Test Results and Analysismentioning

confidence: 99%

Preparation and Mechanism Analysis of Stainless Steel AOD Slag Mixture Base Materials

Huang,

Wei,

Lan

et al. 2024

Materials

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To promote resourceful utilization of argon oxygen decarburization (AOD) slag, this research developed a new three-ash stabilized recycled aggregate with AOD slag, cement, fly ash (FA), and recycled aggregate (RA) as raw materials. The AOD slag was adopted as an equal mass replacement for fly ash. The application of this aggregate in a road base layer was investigated in terms of its mechanical properties and mechanistic analysis. First, based on a cement: FA ratio of 1:4, 20 sets of mixed proportion schemes were designed for four kinds of cement dosage and AOD slag replacement rates (R/%). Through compaction tests and the 7-day unconfined compressive strength test, it was found that a 3% cement dosage met the engineering requirements. Then, the unconfined compressive strength test, indirect tensile strength test, compressive rebound modulus test, and expansion rate test were carried out at different age thresholds. The results showed that the mixture’s strength, modulus, and expansion rate increased initially and then stabilized with age, while the strength and modulus initially increased and then decreased with increasing R. Secondly, based on X-ray diffraction (XRD) and scanning electron microscopy (SEM) used to analyze the mechanism, it was found that the strength, modulus, and expansion rate of the new material can be promoted by blending AOD slag, due to its ability to fully stimulate the hydration reaction and pozzolanic reaction of the binder. Finally, based on the strength and modulus results, R = 3% was identified as the optimal ratio, which provides a reference point for the effective application of AOD slag and RA in road base materials.

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Section: Test Results and Analysismentioning

confidence: 99%

Preparation and Mechanism Analysis of Stainless Steel AOD Slag Mixture Base Materials

Huang,

Wei,

Lan

et al. 2024

Materials

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“…In addition to this, recently Hoy, Menglim, et al proposed using natural rubber latex (NRL) as a replacement material for soil. They investigated its performance in enhancing cement-stabilized laterite and recycled material mixtures [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Evaluation of Soil Improvement Benefits of Biological Retention Facilities Based on AHP-CRITIC

Liang,

Wu,

Jia

et al. 2024

Buildings

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Biological retention facilities are widely used in the construction of new urban infrastructure because of the increasingly serious problems of urban waterlogging and rainwater pollution. At present, a common method to resolve these problems is to improve the treatment performance of these facilities to improve the soil filling layer. How to evaluate the comprehensive benefits of the improved soil filling layer is a problem that cannot be ignored. In this paper, data from seven groups of soil improvement schemes were collected through laboratory tests, and an evaluation method based on AHP-CRITIC was proposed. Firstly, the evaluation indexes of soil improvement in biological retention facilities were determined, and their subjective and objective weights were determined by the AHP method and CRITIC method, respectively, and the comprehensive weights were further calculated. A comprehensive evaluation model was established by the TOPSISI method. Finally, the AHP-CRITIC evaluation model determined that 10% zeolite-amended soil had the best comprehensive evaluation effect, followed by 20% zeolite-amended soil and 10% gravel-amended soil. The results show that the evaluation model can comprehensively assess the benefits of soil improvement in bioretention facilities from the levels of infiltration, purification, and economy and can then select the optimal program for use in actual engineering practice.

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“…The type of natural rubber with high quality resistance to cracking and high wear resistance is called Latex (Rahmawan, 2019). Latex is used as an additive substitution material (Buritatum et al, 2021;Tran et al, 2022) because it provides many benefits in construction such as increasing softening point (Poovaneshvaran et al, 2020), decreasing penetration and increasing flash point (Trisilvana et al, 2019). The addition of latex to the asphalt mixture makes asphalt more resistant to cracking (Lubis et al, 2022), excessive deflection, and is resistant to weather changes and deformation (Aminsyah & Syahid, 2019;Virgo et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

THE PERFORMANCE EVALUATION OF LASTON AC-WC UNIT ASPHALT MIXING PLANT, FOR NATURAL RUBBER RESULTS DAKTALITAS & MARSHALL TEST

Lubis

Mahda²,

Irwan³

2023

jpensil

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Natural latex is the sap produced by rubber plants, often found in Sumatra, rubber is a natural product that has the potential to be used for various kinds of human needs, especially for asphalt mixture substitution needs. Natural latex can improve the quality and quality of the asphalt mixture. The method used in testing the 2018 Bina Marga & ASSTHO methods. The use of natural latex first testing for the manufacture of KAO values (optimum Asphalt content) by making test specimens mixed with asphalt content ranging from 3% and 6%. The optimum asphalt content was obtained and then tested by mixing latex with variations in the composition of the mixture starting at 0%, 3%, and 6%. The collision was carried out with a standard proctor with a collision of 2 x 75 until the test object was declared solid and then tested with a Marshall tool. The test results from determining the optimum asphalt content of 4% there are results of 845 kg, 5% asphalt content of 1015 kg, 6 and 7%, and the stability values obtained are 1015kg and 850 kg respectively. this value still meets the specified standard while the ductility test value obtained >1000 mm also still meets. Meanwhile, at levels of 3 and 6%, the stability value was reduced and did not meet the standard. The results of the tests showed the addition of latex substitution with high latex content, ductility was still met but the stability value decreased on the contrary

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Improved mechanical and microstructure of cement-stabilized lateritic soil using recycled materials replacement and natural rubber latex for pavement applications

Cited by 31 publications

References 51 publications

Preparation and Mechanism Analysis of Stainless Steel AOD Slag Mixture Base Materials

Preparation and Mechanism Analysis of Stainless Steel AOD Slag Mixture Base Materials

Comprehensive Evaluation of Soil Improvement Benefits of Biological Retention Facilities Based on AHP-CRITIC

THE PERFORMANCE EVALUATION OF LASTON AC-WC UNIT ASPHALT MIXING PLANT, FOR NATURAL RUBBER RESULTS DAKTALITAS & MARSHALL TEST

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