Monotonic triaxial experiments to evaluate steady-state and liquefaction susceptibility of Babolsar sand

Jafarian, Yaser; Ghorbani, Ali; Salamatpoor, Siavash; Salamatpoor, Sina

doi:10.1631/jzus.a1300032

Cited by 30 publications

(7 citation statements)

References 21 publications

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“…1, which shows that the soil can be classified as poorly graded sand (SP) based on Unified Soil Classification System (USCS) [20]. Table 1 shows the basic properties of this sand, its mineralogical composition, and its morphological characteristics [21,22]. Due to high level of underground water in Babolsar, portland cement type II has been utilized, which is appropriate for structures exposed to soil/water containing sulfate ions [23].…”

Section: Methodsmentioning

confidence: 99%

Load-settlement mechanism of strip footings rested on saturated loose sand and improved by zeolite–cement pads

Salamatpoor¹,

Salamatpoor²

2019

SN Appl. Sci.

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This study aims to investigate the performance of cemented sand pads after being incorporated with zeolite. Therefore, mechanical properties of the prepared zeolite-cemented sand pads were measured by a series of unconfined compressive strength (UCS) tests. Also, several small 1 g model tests were conducted to evaluate the behavior of shallow foundations rested on the prepared pads. The results demonstrated a remarkable increase in the UCS of the 14 and 28 days cured pads containing 40 wt% zeolite. In addition, incorporating 40 wt% zeolite into the cemented sand pads improved both their strength improvement ratio (SIR) and settlement reduction ratio (SRR). In particular, the SIR and SRR of the pads containing 40 wt% zeolite improved up to 323% and 86% respectively compared to that of the pristine cemented sand pads. As such, adding zeolite to the cemented sand is one of the most promising candidate to overcome the shortcomings of sandy soils in backfills, roadbeds, embankments, and etc. It is notable that this method taking the advantages of easy fabrication, low cost, and absence of environmentally deleterious wastes.

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Section: Methodsmentioning

confidence: 99%

Load-settlement mechanism of strip footings rested on saturated loose sand and improved by zeolite–cement pads

Salamatpoor¹,

Salamatpoor²

2019

SN Appl. Sci.

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“…Therefore, liquefaction occurrence is likely, and investigating the behavior of shallow foundations on the loose saturated Babolsar sand in the area seems to be essential. Jafarian et al [12] evaluated the monotonic behavior of the Babolsar sand through the triaxial tests under isotropic and anisotropic consolidations. Moreover, Jafarian et al [13] evaluated the shear strain-dependent dynamic properties of this sand using a resonant column and cyclic triaxial experiments.…”

Section: Experimental Investigations 21 Materials Properties 211 mentioning

confidence: 99%

Improvement of shallow foundations rested on saturated loose sand by zeolite-cement mixture: a laboratory study

2018

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Improvement operation of sands is carried out frequently by cement together with several other additives. Common additives have high manufacturing cost and negative environmental impact during their manufacturing process and recycling in nature. Zeolite as a mineral substance for cement replacement can improve the strength parameter of a treated sand, without the negative de ciencies of the common additives. In this study, Uncon ned Compression Strength (UCS) and small-scale 1g model tests were conducted to evaluate the mechanical features of zeolite-treated sand and to study the behavior of shallow foundations resting on zeolite pad, respectively. The results of this study demonstrate that the UCS of the cemented sand samples increases when the cement is replaced by zeolite at an optimum proportion of 40% with curing times of 14 and 28 days. Adding this amount of zeolite to cemented sand mixture causes an increase in terms of the improvement rate between 40% and 125% and increases the Bearing Capacity Ratio (BCR) of the strip foundation treated by zeolite pad in the range of 11% to 420%. In addition, zeolite pad leads to a decline in the settlement of the treated strip footing from 16% to 86% in terms of the Settlement Reduction Ratio (SRR).

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“…The reconstituted specimens of the sand were prepared using the bulk samples taken from the borrow pits on the beach. (For more information about the behavior of clean sand Babolsar refer to the articles, [12,13]).…”

Section: Soil Classification and Geotechnical Propertiesmentioning

confidence: 99%

Evaluation of adding crushed glass to different combinations of cement-stabilized sand

Salamatpoor

2017

Geo-Engineering

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Background Soil stabilization is a method aimed at improving the quality of construction material properties to provide a range of pre-defined objectives. Soil stabilization is achieved through a variety of the most common being, physical stabilization. Waste material has been defined as any type of material produced by human and industrial activity that has no lasting value [1]. The growing quantities and type of waste materials, shortage of landfill spaces, and lack of natural earth materials highlight the urgency of finding innovative ways to recycling and reusing waste materials [2, 3]. Additionally, recycling and subsequent reuse of waste materials can reduce the demand for natural resources, which can ultimately lead to a more sustainable environment. One of the recyclable materials that are economically insignificant is crushed glass (CG), billion tons of which, around the world, will be buried in landfills. For example, in the United States, in 2001, approximately 11 million tons of glass entered the municipal waste stream, but only about 2.4

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Monotonic triaxial experiments to evaluate steady-state and liquefaction susceptibility of Babolsar sand

Cited by 30 publications

References 21 publications

Load-settlement mechanism of strip footings rested on saturated loose sand and improved by zeolite–cement pads

Load-settlement mechanism of strip footings rested on saturated loose sand and improved by zeolite–cement pads

Improvement of shallow foundations rested on saturated loose sand by zeolite-cement mixture: a laboratory study

Evaluation of adding crushed glass to different combinations of cement-stabilized sand

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