Smart Cement Compressive Piezoresistive, Stress-Strain, and Strength Behavior with Nanosilica Modification

C. Vipulanandan; A. Mohammed

doi:10.1520/jte20170105

Smart Cement Compressive Piezoresistive, Stress-Strain, and Strength Behavior with Nanosilica Modification

Journal of Testing and Evaluation ◽

10.1520/jte20170105 ◽

2018 ◽

Vol 47 (2) ◽

pp. 20170105 ◽

Cited By ~ 16

Author(s):

C. Vipulanandan ◽

A. Mohammed

Keyword(s):

Stress Strain ◽

Strength Behavior

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Stress-strain-strength behavior of asphalt core in embankment dams during construction

Construction and Building Materials ◽

10.1016/j.conbuildmat.2020.119706 ◽

2020 ◽

Vol 259 ◽

pp. 119706

Author(s):

Shan Feng ◽

Weibiao Wang ◽

Kai Hu ◽

Kaare Höeg

Keyword(s):

Stress Strain ◽

Embankment Dams ◽

Strength Behavior

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Effect of OCR on sampling disturbance of cohesive soils and evaluation of laboratory reconsolidation procedures

Canadian Geotechnical Journal ◽

10.1139/t04-104 ◽

2005 ◽

Vol 42 (2) ◽

pp. 459-474 ◽

Cited By ~ 16

Author(s):

Marika Santagata ◽

John T Germaine

Keyword(s):

Effective Means ◽

Triaxial Tests ◽

Single Element ◽

Cohesive Soils ◽

Stress Strain ◽

Overconsolidation Ratio ◽

Strain Behavior ◽

Preconsolidation Pressure ◽

Strength Behavior ◽

Undrained Strength

The paper presents the results of an experimental investigation of sampling disturbance in cohesive soils through single-element triaxial tests on resedimented Boston blue clay (RBBC). The first part of the paper discusses the effect of the overconsolidation ratio (OCR) (18) of the soil on postdisturbance compression and undrained shear behavior. The results demonstrate that sensitivity to disturbance decreases markedly with OCR. It is also found that for the medium-sensitivity soil tested, the estimate of the preconsolidation pressure is not significantly affected by OCR. The second part of the paper discusses laboratory reconsolidation procedures. For OCR1 RBBC, the recompression method is not effective in recovering the stressstrain behavior of the soil and, for greater disturbance, provides an increasingly unsafe estimate of the strength. For OCR4, provided the reconsolidation path reproduces the path that occurred in the field, this procedure succeeds in recovering the intact stressstrainstrength behavior of the soil. SHANSEP reconsolidation was investigated for normally consolidated RBBC only. For modest levels of disturbance, this is an effective means of evaluating both the stressstrain and the strength behavior of the soil. For greater levels of disturbance, the stressstrain behavior is not fully recovered, but the method continues to provide conservative estimates of the undrained strength.Key words: sampling disturbance, clays, overconsolidation ratio, undrained strength, recompression, SHANSEP.

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