Compressive Behavior of Glass‐Fiber Reinforced Polymer Concrete

Mebarkia, S.; Vipulanandan, C.

doi:10.1061/(asce)0899-1561(1992)4:1(91)

Cited by 43 publications

(21 citation statements)

References 3 publications

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“…Based on experimental results, model proposed by Mebarkia and Vipulanandan (1992), was used to predict the stress-strain behavior of treated sulfate contaminated CL soil with different percentage of polymer solution (Eq. 3).…”

Section: P-q Modelmentioning

confidence: 99%

Testing and Modeling the Short-Term Behavior of Lime and Fly Ash Treated Sulfate Contaminated CL Soil

Mohammed

Vipulanandan

2015

Geotech Geol Eng

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In this study, the effects of calcium sulfate contaminated soil treatment methods on the index properties, compacted soil properties, free swelling and compressive stress strain relationship of a CL soil obtained from the field was investigated. Calcium sulfate concentration in the soil was varied up to 4 % (40,000 ppm) and the soil samples were cured for seven days at 25°C and 100 % humidity before testing. With 4 % sulfate contamination the liquid limit and plasticity index of the soil increased by 44 and 81 % respectively. The free swelling increased from 7 to 18 % and the compressive strength decreased by 65 % with 4 % of calcium sulfate, Also the study investigated the effects of fly ash (class C) and hydrated lime treatment on the behavior of treated sulfate soils. X-ray diffraction (XRD) was used to characterize the soil and the reaction products of lime and fly ash treated soils. Based on XRD analyses, major constituents of the CL soil were calcium silicate (CaSiO 3 ), aluminum silicate (Al 2 SiO 5 ), magnesium silicate (MgSiO 3 ) and quartz (SiO 2 ). Addition of calcium sulfate resulted in the formation of calcium silicate sulfate [Ternesite Ca 5 (SiO 4 ) 2 SO 4 ] and aluminum silicate sulfate [Al 5 (SiO 4 ) 2 SO 4 ]. Treatment with lime resulted in the formation of ettringite [Ca 6 Al 2 (SO4) 3 (OH) 12 Á26H 2 O]. Treating with fly ash resulted in the formation of calcium silicate hydrate (CaSiO 3 H 2 O) and magnesium silicate hydrate (Mg 3 SiO 3 H 2 O), cementing by products. Contaminated soil treatment with lime and fly ash reduced the index properties and free swelling and increased the shortterm compressive strength of the soil. Behavior of the compacted sulfate soils, with and without treatment, has been quantified using a unique model that was used to represent both linear and nonlinear responses. Also the model predications were compared with other published data in the literature. Compressive stressstrain relationships of the sulfate soil, with and without lime and fly ash, have been quantified using a nonlinear constitutive model. The constitutive model parameters were sensitive to the calcium sulfate content and the type of treatment. Compared to the fly ash treatment, the lime treatment reduced the strain at peak stress making the lime treated soil more brittle.

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Section: P-q Modelmentioning

confidence: 99%

Testing and Modeling the Short-Term Behavior of Lime and Fly Ash Treated Sulfate Contaminated CL Soil

Mohammed

Vipulanandan

2015

Geotech Geol Eng

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“…Such nature of relationship can be modeled using p-q model. This model was first proposed by Mebarkia and Vipulanandan [31] to predict the stress-strain behavior of glass-fiber-reinforced polymer concrete. The original p-q model formulation is as follows:…”

Section: P-q Modelmentioning

confidence: 99%

Experimental Testing and Analytical Modeling of Strip Footing in Reinforced Sandy Soil with Multi-Geogrid Layers Under Different Loading Conditions

Raheem¹,

Abdulkarem²

2016

AJCE

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In this study, large-scale physical models with dimensions of (0.9m * 0.9m * 0.55m) have been designed and constructed to investigate the behavior of strip footing in reinforced sandy soil with multi-geogrid layers under inclined and eccentric loading conditions. The effect of several parameters such as geogrid layers (N), soil relative density (RD), depth of the topmost geogrid layer (U/B), load inclination angle (α) and load eccentricity ratio (e/B) on the bearing capacity ratio (BCR) of reinforced soil have been investigated through 120 experimental tests. As the number of the geogrid layers increased from 0 to 4, the BCR increased by 255% for 15 o load inclination angle and by 470% for 0.05 load eccentricity ratio in 60% RD. When the RD of the soil increased from 60% to 80%, the average decreases in horizontal displacement and footing tilting angle were about 35% and 21% respectively. Hyperbolic analytical model was used to predict the relationships of most of the studied parameters. However, p-q analytical model was suggested to model the relationship between the BCR versus U/B. Both suggested models (hyperbolic and p-q) were in a very good agreement with the experimental results.

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“…e significant improvements in the compressive and split tensile strengths of cement mortar due to the incorporation of fly ash were observed [26,27]. e stress-strain behavior of materials such as concrete, glass fiber-reinforced polymer concrete, fine sands grouted with sodium silicate, sulfate-contaminated clay soil, smart cement modified with nanomaterials, and cement mortar were predicted using the Vipulanandan model [28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Characterizing and Modeling the Mechanical Properties of the Cement Mortar Modified with Fly Ash for Various Water‐to‐Cement Ratios and Curing Times

Qadir

Ghafor

Mohammed

2019

Advances in Civil Engineering

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Despite many research studies on the effect of the fly ash content (FA) on the mechanical behavior of the cement mortar, there has not been an extensive study investigating the effect of FA, curing time (t), and water-to-cement ratio (w/c) on the compressive (σc), tensile (σt), and flexural (σf) strengths of cement mortar. Therefore, this study investigates the subject which could be beneficial for the building and construction field. In this study, more than 1000 data on the mechanical properties of the cement mortar modified with different percentages of fly ash varying from 5% to 75% (by dry weight of the cement) were collected from the literature. The statistical analysis and modeling were performed on the collected data. The w/c of the cement mortar ranged from 0.20% to 0.80%, and the compressive, split tensile, and flexural strengths of cement mortar modified with fly ash and cured up to 90 days ranged from 15 MPa to 88 MPa, 0.4 MPa to 5 MPa, and 1 MPa to 10 MPa, respectively. The Vipulanandan model was also used and compared with the Hoek–Brown model to correlate the mechanical properties of cement mortar modified with fly ash. The results of this study showed that there is a good relationship between the compressive strength (σc) and w/c, curing time, and fly ash content. The compressive, split tensile, and flexural strengths of cement mortar quantified well as a function of w/c, fly ash content, and curing time using a nonlinear relationship.

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Compressive Behavior of Glass‐Fiber Reinforced Polymer Concrete

Cited by 43 publications

References 3 publications

Testing and Modeling the Short-Term Behavior of Lime and Fly Ash Treated Sulfate Contaminated CL Soil

Testing and Modeling the Short-Term Behavior of Lime and Fly Ash Treated Sulfate Contaminated CL Soil

Experimental Testing and Analytical Modeling of Strip Footing in Reinforced Sandy Soil with Multi-Geogrid Layers Under Different Loading Conditions

Characterizing and Modeling the Mechanical Properties of the Cement Mortar Modified with Fly Ash for Various Water‐to‐Cement Ratios and Curing Times

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