{"title":"The influence of polymer content on the shear wave velocities in fine sand","authors":"D. Sarkar, W. Lieske, M. Goudarzy, T. Wichtmann","doi":"10.1680/jenge.23.00017","DOIUrl":null,"url":null,"abstract":"The usage of various polymers as an alternative in ground improvement problems is steadily gaining popularity. However, certain aspects of the usage of polymers are still not properly addressed. In this paper, an experimental program has been undertaken to study the influence of various polymer contents on the shear wave velocities in granular soils. Different polymer concentrations are mixed with a uniform sand to obtain various concentrations. Resonant column tests are carried out under three different mean effective stresses considering various densities. The results suggest a significant influence of polymer under low stress values due to the coating that reduces normal contact forces between sand grains. The influence of the coating is further seen to decrease since under higher stresses- the coatings are significantly damaged, leading to increase in the stiffness of the specimens the values of which are closer to that measured for the pure sand.","PeriodicalId":11823,"journal":{"name":"Environmental geotechnics","volume":" ","pages":""},"PeriodicalIF":2.2000,"publicationDate":"2023-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental geotechnics","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1680/jenge.23.00017","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, GEOLOGICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The usage of various polymers as an alternative in ground improvement problems is steadily gaining popularity. However, certain aspects of the usage of polymers are still not properly addressed. In this paper, an experimental program has been undertaken to study the influence of various polymer contents on the shear wave velocities in granular soils. Different polymer concentrations are mixed with a uniform sand to obtain various concentrations. Resonant column tests are carried out under three different mean effective stresses considering various densities. The results suggest a significant influence of polymer under low stress values due to the coating that reduces normal contact forces between sand grains. The influence of the coating is further seen to decrease since under higher stresses- the coatings are significantly damaged, leading to increase in the stiffness of the specimens the values of which are closer to that measured for the pure sand.
期刊介绍：
In 21st century living, engineers and researchers need to deal with growing problems related to climate change, oil and water storage, handling, storage and disposal of toxic and hazardous wastes, remediation of contaminated sites, sustainable development and energy derived from the ground.
Environmental Geotechnics aims to disseminate knowledge and provides a fresh perspective regarding the basic concepts, theory, techniques and field applicability of innovative testing and analysis methodologies and engineering practices in geoenvironmental engineering.
The journal''s Editor in Chief is a Member of the Committee on Publication Ethics.
All relevant papers are carefully considered, vetted by a distinguished team of international experts and rapidly published. Full research papers, short communications and comprehensive review articles are published under the following broad subject categories:
geochemistry and geohydrology,
soil and rock physics, biological processes in soil, soil-atmosphere interaction,
electrical, electromagnetic and thermal characteristics of porous media,
waste management, utilization of wastes, multiphase science, landslide wasting,
soil and water conservation,
sensor development and applications,
the impact of climatic changes on geoenvironmental, geothermal/ground-source energy, carbon sequestration, oil and gas extraction techniques,
uncertainty, reliability and risk, monitoring and forensic geotechnics.
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