Durability improvement of cement stabilized pavement base using natural rubber latex

Buritatum, Apinun; Horpibulsuk, Suksun; Udomchai, Artit; Suddeepong, Apichat; Takaikaew, Thaworn; Vichitcholchai, N.; Horpibulsuk, Jitwadee; Arulrajah, Arul

doi:10.1016/j.trgeo.2021.100518

Cited by 39 publications

(15 citation statements)

References 39 publications

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“…Figure 8 and Table 4 show that the average shrinkage strain gradually changes with the increase of CFBS content. From the results, the shrinkage strain of cement-stabilized clay (CS0) increases with curing time; Apinum Buritatum et al also observed macro and micro cracks [ 24 ]. After adding 60–80% CFBS, Figue 8b–d showed that CS6, CS7, and CS8 showed a slight increase in the first 10d.…”

Section: Resultsmentioning

confidence: 99%

“…This shows that the hydration products generated by CFBS fill the internal pores, promoting the development of structural densification. Dongxing Wang et al [ 24 ] also found that slag particles had the effect of filling pores. Mingkai Zhou et al [ 16 ] found that the hydration products of CFBCA were easy to dissolve and promote structural densification.…”

Section: Resultsmentioning

confidence: 99%

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Study on Strength, Water Stability, Shrinkage, and Microstructure of CFB Slag Modified Cement Stabilized Clay

et al. 2021

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Circulating fluidized bed slag (CFBS) is an industrial waste produced by coal combustion in power plants. To explore the application of CFB slag in cement-stabilized bases, this paper studies the influence of different dosage of CFBS on the mechanics, water stability, and shrinkage of cement-stabilized soil using laboratory experiments. The hydration activity and interface morphology of CFBS in cement-stabilized clay were observed using XRD and SEM. The improvement mechanism of CFBS on the performance of cement-stabilized clay was revealed. The results indicated that, compared with cement-stabilized clay, cement–CFBS-stabilized clay exhibited better mechanical and water stability, and significantly inhibited the shrinkage deformation of cement-stabilized clay. When the addition of CFBS was 70%, cement–CFBS-stabilized clay had the best mechanics and durability. Microscopic tests show that CFBS contains more active silicon aluminum oxide, which is easily dissolved and the hydration of which produces more gel products, so the mixture structure is denser, the strength is improved, and water does not easily evaporate; it has the characteristics of micro expansion which compensates for dry shrinkage deformation.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Study on Strength, Water Stability, Shrinkage, and Microstructure of CFB Slag Modified Cement Stabilized Clay

et al. 2021

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“…This was also indicated by laboratory testing by exposing stabilized soil samples to wetting/drying cycles [10,11,12,13,14,15] or freezing/thawing periods [16,17,18]. Durability of treated soils is a subject more and more studied recently [19,20,21] as it is now clear that it is essential to consider the durability of the performance of treated soils in the design process of such structures, and it is of primary interest to understand the impact of climatic conditions on the long-term behaviour of stabilized soils. Thus, the development of a methodology for understanding and quantifying the macroscopic mechanical behaviour degradation of treated soils when exposed to wetting and drying cycles is necessary.…”

Section: Introductionmentioning

confidence: 99%

Impact of wetting and drying cycles on the mechanical behaviour of a cement-treated soil

Wassermann

Abdallah²,

Cuisinier³

2022

Transportation Geotechnics

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“…The usage of NL for cement paste, mortar, and concrete has significantly increased [17][18][19][20][21]. NL is classified as an environmentally friendly polymer elastomer latex material, which can be widely used to enhance the tensile properties of cement materials owing to its excellent flexibility, ductility, and toughness properties [18,[22][23][24][25][26][27][28][29]. Unfortunately, when the cement and NL are mixed together, the workability is decreased due to their incompatibility.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the compressive strength and workability of NL/cement composites would decrease mainly as the amount of NL increases. To solve this problem, the addition of suitable surfactants into NL/cement-based composite materials can improve the compatibility between the matrix and filler [24][25][26]30]. The surfactant can modify the surface charge of NL particles, which can cause compatibility in the composites.…”

Section: Introductionmentioning

confidence: 99%

Dielectric and Mechanical Properties of CTAB-Modified Natural Rubber Latex–Cement Composites

et al. 2022

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Cetyl trimethyl ammonium bromide (CTAB)-modified natural rubber latex/Portland cement paste (CTAB + NL/PC) composites were fabricated by varying the NL/cement and CTAB/cement ratios to improve the elastic property of PC. The stability and workability of the CTAB-modified NL particles in the PC matrix were significantly improved. The microstructure and dielectric property analyses of PC, CTAB/PC, NL/PC, and (CTAB + NL)/PC composites were performed to describe the interaction mechanism between the CTAB-modified NL and PC. The portlandite phase in PC was reduced by incorporating CTAB + NL. Although the tensile strength of NL/PC was significantly increased, its compressive strength also greatly decreased by ~40.3%. The tensile and compressive strengths of CTAB/PC were not significantly improved. Notably, the tensile strength of (CTAB + NL)/PC was significantly increased compared to those of PC, CTAB/PC, and NL/PC, while the depreciated compressive strength was only 18.7%. The optimized compressive–tensile performance of (CTAB + NL)/PC was equal to that of PC. The dielectric constants of NL/PC, CTAB/PC, and (CTAB + NL)/PC were reduced due to the low dielectric constant of NL and the ability of CTAB to capture negative charges in the PC matrix, leading to a reduction in the negative surface charges and hence the interfacial polarization. This result was confirmed by the decreased loss tangent in a low-frequency range, which is usually reduced by decreasing the free charges. This work provides a comprehensive guideline for significantly improving the elastic property of PC while retaining a high compressive strength.

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Durability improvement of cement stabilized pavement base using natural rubber latex

Cited by 39 publications

References 39 publications

Study on Strength, Water Stability, Shrinkage, and Microstructure of CFB Slag Modified Cement Stabilized Clay

Study on Strength, Water Stability, Shrinkage, and Microstructure of CFB Slag Modified Cement Stabilized Clay

Impact of wetting and drying cycles on the mechanical behaviour of a cement-treated soil

Dielectric and Mechanical Properties of CTAB-Modified Natural Rubber Latex–Cement Composites

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