Laboratory evaluation of long-term sealing behaviors of two water-swelling materials for shield tunnel gasket

Tan, Ji-Shuang; Shen, Shui‐Long; Zhou, Annan; Wang, Ze-Nian; Lyu, Hai‐Min

doi:10.1016/j.conbuildmat.2020.118711

Cited by 28 publications

(10 citation statements)

References 59 publications

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“…The water swelling polyurethane (WSP) and water swelling rubber (WSR) are two polymer materials that provide water resistance by swelling when they are soaked in water [1] , [2] , [3] – 4] under leaking situation [5] , [6] , [7] – 8] . The WSP material was prepared first by adding TDI, and prepolymer.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Experimental data of water swelling characteristics of polymer materials for tunnel sealing gasket

et al. 2020

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This article provides comprehensive experimental data of two polymers for shield tunnel sealing gasket: i) water swelling polyurethane (WSP) and ii) a mixture (WSRP) of WSP and water swelling rubber (WSR). Water-swelling tests are conducted to investigate the microstructural changes and properties of both WSP and WSRP during water swelling. These data can be useful for the quantitative evaluation of water swelling performance of WSP and WSRP. The data presented herein was used for the article, titled “Experimental investigation of water swelling characteristics of polymer materials for tunnel sealing gasket” [1] .

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Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Experimental data of water swelling characteristics of polymer materials for tunnel sealing gasket

et al. 2020

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“…To determine the water resistance of bioplastics can be done with a swelling test. The swelling test is the swelling ratio of the bioplastic in the presence of water [26]. The lower the percentage of water absorption means that the plastic properties are getting better, while the higher the percentage of water absorption means that the plastic properties will be easily damaged [7].…”

Section: Effect Of Modified Starch To Water Resistancementioning

confidence: 99%

Application of modified starch on glass bioplastic based on carrageenan from Eucheuma cottonii on mechanic and biodegradation properties

Triani

Alamsjah

Pujiastuti

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Polysaccharides from carrageenan have potential as bioplastic forming materials. Bioplastics have water resistance (hydrophobic) properties which can be improved by using modified starch. Modified Starch is a material that can reduce the hydrophilic properties of bioplastics. The objectives of this study were to determine the effect of modified starch application on carrageenan- based glass bioplastics on biodegradability and water resistance and to determine the best bioplastic formulation for biodegradability and water resistance. This research was conducted using experimental methods in the biodegradation test and the resistance or swelling test. The experimental method in this study used a completely randomized design (CRD) at a significance level of 5% (α = 0.05). The results of this study indicate that the addition of high modified starch can increase the water resistance of bioplastics but the addition of high modified starch will result in slower biodegradability.

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“…Owing to the high cementation force between the soil particles [73,93], high plasticity clays tend to be more difficult to be eroded than gravel soils. These clays generally break into lumps and pieces, in lieu of individual small particles, as is the case for granular soils [94][95][96][97]. This also explains the observation of the suspended soils being dispersed or deposited at various distances (100 to 2000 m) from the trench during the jetting [51].…”

Section: Soil Breaking Profilesmentioning

confidence: 99%

Perspective Review on Subsea Jet Trenching Technology and Modeling

Njock

Zheng

Zhang

et al. 2020

JMSE

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This paper presents a comprehensive review on subsea jet trenching technology via a critical analysis of its principle, mechanism, devices, modeling approaches, as well as properties of subsea sediments. This review shows that the success of jet trenching operations is closely related to some key factors including the soil conditions, trencher specifications, and characteristics of pipelines or cables. Three case histories are presented to demonstrate the importance of these key factors and their interrelationships. This paper also points out a number of challenges pertaining to the implementation of the jet trenching method in carbonate sediments, as well as some limitations and gaps in the existing modeling approaches. Future perspective researches that are recommended to develop: (1) promising theories, like turbulent submerged flow, and (2) robust numerical approaches, such as the smoothed particle hydrodynamics (SPH) and material point method (MPM) to substantiate the experimental experience and reveal possible hidden mechanisms.

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Laboratory evaluation of long-term sealing behaviors of two water-swelling materials for shield tunnel gasket

Cited by 28 publications

References 59 publications

Experimental data of water swelling characteristics of polymer materials for tunnel sealing gasket

Experimental data of water swelling characteristics of polymer materials for tunnel sealing gasket

Application of modified starch on glass bioplastic based on carrageenan from Eucheuma cottonii on mechanic and biodegradation properties

Perspective Review on Subsea Jet Trenching Technology and Modeling

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