Design and performance validation of high-performance cement paste as a grouting material for semi-flexible pavement

Pei, Jianzhong; Cai, Jun; Zou, Dao-guang; Zhang, Jiupeng; Li, Rui; Chen, Xiangfeng; Jin, Long

doi:10.1016/j.conbuildmat.2016.09.036

Cited by 108 publications

(28 citation statements)

References 12 publications

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“…Semi-flexible pavement surface (SFPS) material (also known as grouted macadam) is designed as an open-graded asphalt mixture (OGAM) with 25-35% air voids and then cement grout is infused into the voids [2,7,[14][15][16][17]. However, few researchers advised the range of air voids to be 20-35% [18,19].…”

Section: Semi-flexible Pavement Surfacesmentioning

confidence: 99%

Cementitious Grouts Containing Irradiated Waste Polyethylene Terephthalate

Khan¹,

Sutanto²,

Napiah³

et al. 2021

Cement Industry - Optimization, Characterization and Sustainable Application

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This chapter describes a review of the design and formulation of various cementitious grouts for semi-flexible pavement surfaces. Additionally, the authors also conducted extensive experimental work on the possibility of using a most effective and innovative way of recycling waste polyethylene terephthalate (PET) by exposing to gamma radiation and using as a replacement of Ordinary portland cement in the formulation of cement grouts for semi-flexible pavement surfaces. In the current study, cement in the grouts was replaced with PET (regular and irradiated), fly ash and silica fume and was evaluated for flowability and strength properties. The study concludes that normal PET causes a significant reduction in compressive strength, however, some of the strength is restored when irradiated PET was used. The recycling of waste PET, as a cement replacement in the cementitious grouts for semi-flexible pavement surfaces, with the irradiation process can be doubled as compared to utilizing normal/regular PET.

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Section: Semi-flexible Pavement Surfacesmentioning

confidence: 99%

Cementitious Grouts Containing Irradiated Waste Polyethylene Terephthalate

Khan¹,

Sutanto²,

Napiah³

et al. 2021

Cement Industry - Optimization, Characterization and Sustainable Application

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“…For semi-flexible pavement, the grouts are required to be highly flowable with desired strength. Various ranges of w/c ratios (from 0.35 to 0.63) have been optimized by researchers to achieve the target fluidity and strength of different grouts for semi-flexible surfaces [4][5][6][7][8][9][10][11].…”

Section: Water-cement Ratiomentioning

confidence: 99%

Effect of Irradiated and Non-Irradiated Waste PET Based Cementitious Grouts on Flexural Strength of Semi-Flexible Pavement

et al. 2019

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In this study the effect of irradiated and non-irradiated waste polyethylene terephthalate (PET) as replacement of cement and fly-ash in ordinary Portland cement (OPC) and geopolymeric cement (GPC) based cementitious grouts on flexural strength of semi-flexible pavement specimens were evaluated. The porous asphalt gradation was selected based on Malaysian specifications for semi-flexible pavements with a target of 30% air voids. The cement content in the OPC grouts and the fly-ash content in the GPC based grouts were partially replaced with 1.25% PET (using both irradiated and non-irradiated PET). Beam specimens were prepared and tested for flexural strength properties using center point loading configuration. The grouts modified with recycled waste plastic (PET) showed approximately the same results as obtained from the control specimens. Although the replacement amount was low (1.25% by weight of cement), nonetheless, significant impact on reducing CO2 emissions is expected when preparing grouts for mass construction of semi-flexible pavement surfaces. Similarly, effective recycling of waste plastics in road construction and replacing OPC with plastic and geopolymers will have a positive effect on the environment and will furthermore contribute to sustainable pavement construction.

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“…Drying shrinkage is considered as a main reason for the structure destruction of pavement base material [29][30][31]. e serious drying shrinkage will also lead to the crack generation of the asphalt pavement laid on CLFBM.…”

Section: Drying Shrinkage Assessment For the Further Determination Ofmentioning

confidence: 99%

Cement‐Lime‐Fly Ash Bound Macadam Pavement Base Material with Enhanced Early‐Age Strength and Suppressed Drying Shrinkage via Incorporation of Slag and Gypsum

Liu

et al. 2019

Advances in Civil Engineering

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In this study, a novel cement-lime-fly ash bound macadam (CLFBM) as pavement base material was designed by incorporating Portland cement, dihydrate gypsum (CaSO4·2H2O), and ground granulated blast furnace slag (GGBS) into the lime-fly ash bound macadam (LFBM) for the purpose of the early opening to traffic. The multifactors orthogonal test method was used to evaluate the effects of Portland cement, dihydrate gypsum, and GGBS on the early-age strength of CLFBM. Moreover, the compressive and flexural strengths at 28 days as well as the drying shrinkage development in 56 days were investigated. By conducting the comprehensive analysis for the better mechanical properties and the lowest drying shrinkage, Portland cement : dihydrate gypsum : lime : fly ash : GGBS : gravels = 2 : 1 : 6 : 5.6 : 8.4 : 80 is determined as the optimal mix proportion of CLFBM. In addition, scanning electron microscope (SEM) results confirmed the formation of a large number of ettringite and C-S-H gels, providing a powerful support for the enhanced early-age strength and suppressed drying shrinkage of CLFBM.

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Design and performance validation of high-performance cement paste as a grouting material for semi-flexible pavement

Cited by 108 publications

References 12 publications

Cementitious Grouts Containing Irradiated Waste Polyethylene Terephthalate

Cementitious Grouts Containing Irradiated Waste Polyethylene Terephthalate

Effect of Irradiated and Non-Irradiated Waste PET Based Cementitious Grouts on Flexural Strength of Semi-Flexible Pavement

Cement‐Lime‐Fly Ash Bound Macadam Pavement Base Material with Enhanced Early‐Age Strength and Suppressed Drying Shrinkage via Incorporation of Slag and Gypsum

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