Behavior of a Sodium Silicate Grouted Sand

Gonzalez, Henry; Vipulanandan, C.

doi:10.1061/40912(231)4

Cited by 14 publications

(6 citation statements)

References 7 publications

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“…Figures 11{13 show that the relationship between the stress and the strain before failure becomes almost linear and the strains range from 0.13% to 1.5% at failure. This is a typical brittle behavior of sodium silicatereactant grouted sands [17,19,20,24,37]. As the temperature increases, the strains at failure increase, too.…”

Section: Ucsmentioning

confidence: 85%

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The Effect of Various Curing Temperatures on Engineering Properties of Chemically Grouted Sands

Avcı

2018

Scientia Iranica

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In this experimental study, the e ect of curing temperature on the engineering properties of sand samples grouted with sodium silicate-glyoxal was investigated. The experiments began with determining gelation times, viscosities, and syneresis percentages of the blends prepared for injection. Thereafter, the injection experiments were carried out at the determined mixing ratios. Grouted specimens were subjected to Uncon ned Compressive Strength (UCS) and permeability tests at di erent curing temperatures (+10 C, +20 C, and +30 C) being kept in the curing tank. As the temperature increased, the viscosity values and gelling times decreased, while the syneresis percentages increased. The UCS of the grouted samples decreased with time. This decreasing trend slowed down in the case of the samples kept at +10 C after the 56th day, while the same was seen in the case of those specimens kept at +20 C and for those kept at +30 C on the 7th and 28th days. Further, UCS values decreased with the increasing temperature. The permeability values of the grouted samples decreased with time. This decreasing trend slowed down after the 28th day. An increase in temperature reduced permeability values.

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Section: Ucsmentioning

confidence: 85%

“…Given in Table 4 are the UCS values of sodium silicate-based grouted sands provided by several researchers [20,24,37,38]. As seen from the table, the UCS values di er from each other due to the type of reactant, silicate content, curing time, and temperature.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Various Curing Temperatures on Engineering Properties of Chemically Grouted Sands

Avcı

2018

Scientia Iranica

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“…Rheological models from Koenzen (1977) and Stetzler (1982) also give good creep predictions but are considered complex and require more parameters. An empirical relationship between time to failure and fundamental stress level (Borden et al, 1982;Gonzalez and Vipulanandan, 2007) is also used in lieu of creep models.…”

Section: Modelling Of Creep Behaviourmentioning

confidence: 99%

Experimental creep behaviour and modelling of silicified sand

Becker¹,

Dove²,

Dove³

2013

Proceedings of the Institution of Civil Engineers - Ground Impr

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The stress-strain-time behaviour was investigated for sand that was treated by a new biologically inspired silicification process. This ground treatment method offers the potential to achieve similar performance as existing soil treatment methods using lower concentrations of environmentally benign component materials. This experimental study evaluated the influence of a polyelectrolyte pretreatment and test procedure on the fundamental strength of medium dense Ottawa 20/30 sand silicified with 20% sodium silicate. Samples were subjected to unconfined single-increment, unconfined incremental, and confined incremental creep tests. The results show that the creep behaviour of silicified samples is similar to the behaviour of traditionally treated sand. Fundamental strengths were approximately 50 kPa when unconfined, and ranged from 117 kPa to greater than 340 kPa when confined at 69 and 138 kPa, respectively. The data also show that incremental creep tests may be a more rapid means of determining parameters for creep modelling than the existing standardised single-increment test method.Parameters for modelling long-term deformation behaviour are consistent with published parameters for existing soil treatment methods even though compositional differences exist between the samples used in studies.

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“…The details of grouting test apparatus [12]. elapsed time from grout mixing until no grout flowed out from a baker when tilted to 45º [13]. Grout gels were dependent on the components of the grout.…”

Section: Testing Program Gel Time Viscosity and Syneresis Testsmentioning

confidence: 99%

Permeability Characteristics of Sand Grouted with Glyoxal Blended Sodium Silicate

Avcı

2017

Hittite J. Sci. Eng.

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G routing is one of the oldest and widely used ground improvement methods in civil engineering applications all over the world. It is mainly used for reducing permeability and increasing the strength of soil or rock. It is also employed in decreasing the deformability of soil under foundations, stabilizing ground cutting face and excavations and controlling the settlement of ground surface during the opening of a tunnel [1]. Different grouting materials such as suspensions, solutions and emulsions are used for grouting purposes [2-4]. Chemical grouts were developed where the pore size in rock or soil units were too small to be penetrated by conventional Portland cement suspensions [5]. They were fluid at the beginning but reacts after a predetermined time to form a solid, semisolid or gel. Various chemical grouts have been introduced so far, and each one has characteristics suitable for different uses. The most common chemical grouts were introduced by US Army corps of engineers in five categories i.e., sodium silicate, acrylate, lignin, urethane and resin grouts [5].

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Behavior of a Sodium Silicate Grouted Sand

Cited by 14 publications

References 7 publications

The Effect of Various Curing Temperatures on Engineering Properties of Chemically Grouted Sands

The Effect of Various Curing Temperatures on Engineering Properties of Chemically Grouted Sands

Experimental creep behaviour and modelling of silicified sand

Permeability Characteristics of Sand Grouted with Glyoxal Blended Sodium Silicate

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