Characterization of Cemented Sand in Triaxial Compression

Schnaid, Fernando; Prietto, Pedro Domingos Marques; Consoli, Nilo César

doi:10.1061/(asce)1090-0241(2001)127:10(857)

Cited by 279 publications

(103 citation statements)

References 36 publications

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“…This was attributed to cementation as well as an increase in dilation. This is in agreement with later studies by Schnaid et al (2001), who found that the effect of cementation at low confining pressures is to increase both friction angle and cohesion. Figure 27 shows the effect of confining pressure on the results of drained triaxial compression tests on the soil-cement.…”

Section: Controlling Factorssupporting

confidence: 93%

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The role of cementation in the behaviour of cemented soils

Lade

Trads

2014

Geotechnical Research

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111The behaviour of cemented soil and the role of cementation are reviewed based on experimental results. The review is presented in terms of geomechanics concepts in which the cemented soil may be modelled by elasticity and hardening plasticity concepts. No modelling equations are given, but the observed behaviour is analysed in view of the components entering into an elastoplastic model. These consist of an elastic range in stress space in which energy is not created or expended, a cementation yield surface, a 3D failure surface, a plastic potential, a yield surface and the associated plastic hardening law.

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Section: Controlling Factorssupporting

confidence: 93%

“…The elastic behaviour inside the cementation surface varies with the degree of cementation (Baig et al, 1997;Clough et al, 1981;Huang and Airey, 1998;Schnaid et al, 2001;Sharma and Fahey, 2003). Figure 16 summarises their findings schematically.…”

Section: Elastic Behaviour Inside the Cementation Yield Surfacementioning

confidence: 94%

The role of cementation in the behaviour of cemented soils

Lade

Trads

2014

Geotechnical Research

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“…Although fine grained soils are usually harder to engineer, attention to improved granular soils (Dupas and Pecker, 1977;Zhu et al, 1995;Schnaid et al, 2001) has been perhaps even greater than that given to improved fine grained soils (Uddin et al, 1997;Miura et al, 2001; Uddin and Buensuceso, 2002). Most work in this area has focused on mix design; testing several laboratory mixes to ascertain the optimum improvement.…”

Section: Introductionmentioning

confidence: 99%

Compaction Bands and Oedometric Testing in Cemented Soils

Arroyo

Castellanza

Nova

2005

SOILS AND FOUNDATIONS

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This paper presents a summary of recent work on cemented soils at Milan University of Technology (Politecnico). Oedometric and triaxial tests have been performed on lightly bonded soils of medium to very high porosity. Soils tested vary from a rather conventional silica sand-lime mixture to more unusual materials, including expanded clay aggregates, fragmented marine shells or stabilized metallurgical residues. A simple but powerful elasto-plastic bonded soil model is employed to select testing procedures and interpret the results obtained. Both experimental results and model simulations are employed here to illustrate and explore the onset of compaction bands, a new form of localization previously observed in rocks but whose appearance is here first signaled for bonded soils.

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“…A few examples include Dupas and Pecker [1], Haeri et al [2][3], Hamidi and Haeri [4], Schnaid et al [5], Consoli et al [6][7][8][9][10], Rotta et al [11], and Malandraki and Toll [12]. To study the behavior of clean sands under cyclic loads like earthquake, SSA simulates more realistic stress states.…”

Section: Introductionmentioning

confidence: 99%

Specimen Preparation Methods for Artificially Cemented Sand in Simple Shear and Hollow Cylinder Apparatuses

et al. 2017

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Abstract. Portland cement can be mixed with sand to improve its mechanical characteristics. Considering the inherent anisotropy of most sands, it is not clear whether the added cement shall contribute to equal increases in strength and sti ness in vertical and horizontal directions or not. Literature review reveals that all the previous experimental studies on the cement-treated soil topics are limited to conventional triaxial device test results. The e ect of cement addition to clean sand in more sophisticated stress-path controlled devices like \Simple Shear Apparatus" (SSA) and \Hollow Cylinder Apparatus" (HCA) for simulating more realistic loading conditions, such as earthquake, have not been investigated yet. This paper presents innovative methods for testing arti cially cemented sands through making modi cations to the loading platens, specimen molds, and specimen preparation methods of SSA and HCA. Undrained tests under di erent monotonic stress paths were carried out on di erent mixtures of Portland cement with clean sand to investigate the e ect of principal stress rotations. The test results revealed that the cement mixture reduces the anisotropy, while it improves the mixture mechanical properties compared to the compacted uncemented sand.

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Characterization of Cemented Sand in Triaxial Compression

Cited by 279 publications

References 36 publications

The role of cementation in the behaviour of cemented soils

The role of cementation in the behaviour of cemented soils

Compaction Bands and Oedometric Testing in Cemented Soils

Specimen Preparation Methods for Artificially Cemented Sand in Simple Shear and Hollow Cylinder Apparatuses

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