NDLI: Prescription Formula of Foamed Particles in Lightweight Soil

Content Provider	Springer Nature Link
Author	Hou, Tian shun
Copyright Year	2014
Abstract	To research the prescription of lightweight soil under an optimum water content condition, the influence of the water content on the material state should be completely removed. The optimum water content of different mixing ratios of lightweight soil can be obtained using the optimum water content model. The prescription formula and prescription optimization method of foamed particle lightweight soil were investigated using density tests and unconfined compressive strength tests. The results show that the density of lightweight soil is mainly affected by the content of expanded polystyrene (EPS) particles, and it decreases linearly with an increase in the EPS particle volume ratio. However, the effect of the cement content on the density of lightweight soil is very small and can be ignored. The unconfined compressive strength of lightweight soil increases linearly with the increase in cement content, and the strength growth rates are mainly affected by the different EPS particle contents. There is a minimum cement content; if the cement mixing ratio is lower than the minimum cement content, there will be no solidification effect for the cement. The unconfined compressive strength of lightweight soil decreases linearly with an increase in the EPS particle volume ratio, and the strength reducing rates are mainly affected by the different cement contents. There is a maximum content for the EPS particles; if the EPS particle volume ratio is more than the maximum content of EPS particles, the strength of the mixed soil will be completely lost. Considering the density, strength, and cost of mixed soil, two empirical prescription formulas were proposed: the positive correlation linear fitting method and the negative correlation linear fitting method.
Starting Page	153
Ending Page	160
Page Count	8
File Format	PDF
ISSN	09603182
Journal	Geotechnical and Geological Engineering
Volume Number	33
Issue Number	1
e-ISSN	15731529
Language	English
Publisher	Springer International Publishing
Publisher Date	2014-09-16
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Lightweight soil Wet density Unconfined compressive strength Prescription formula Geotechnical Engineering & Applied Earth Sciences Hydrogeology Terrestrial Pollution Waste Management/Waste Technology Civil Engineering
Content Type	Text
Resource Type	Article
Subject	Soil Science Geology Architecture Geotechnical Engineering and Engineering Geology

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