Producción Intelectual:

Artículos

2021

Mechanical characterization of self-compacting steel fiber reinforced concrete using digital image correlation

This paper evaluates the mechanical properties, modulus of elasticity (E) and critical stress intensity factor (KIC), of self?compacting concrete with the addition of hook-ended steel fibers, implementing Digital Image Correlation (DIC) to obtain the horizontal and vertical dis...


Autor(es): Eduardo Zapata.   David Sebastian Cotes.   Valeria Quiceno.  



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2019

Mechanical behavior of quaternary concrete with micro/nano analyzed by artificial neural networks and surface response method

This paper presents experimental and computational findings related to the compressive strength of concrete containing nano-SiO2, fly-ash, silica fume, and polycarboxylate-superplasticizer. At different days of aging, three central-composite experimental designs were perf...


Autor(es): Eduardo Zapata.   Genock Portela.   Marcelo Suárez.   Brian Green.  



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2016

Ultrasonic pulse velocity for monitoring the susceptibility of concrete to sodium sulphate and wetting-drying cycles

El ataque externo de sulfatos en el concreto está relacionado con la formación de componentes que contienen sulfatos expansivos en el estado endurecido de las muestras de concreto. El objetivo de la presente investigación consiste en estudiar el uso de la técnica de la velocida...


Autor(es): Ricardo Alfredo Cruz.   Eduardo Zapata.   Luz Amparo Quintero.   Julian Herrera.  



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2015

Effect of fly ash and nanosilica on compressive strength at early age

The replacement of cement by mineral admixtures in concrete has been of increasing interest in the construction industry. Nevertheless, several of the potential replacements, such as fly ash class F, lower the compressive strength of concrete at early age. This project ...


Autor(es): Eduardo Zapata.   Nitza M. García Berrios.   Oscar Marcelo Suárez.   Mauricio Cabrera Rios.  



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2015

Physical and mechanical characterization of concrete exposed to elevated temperatures by using ultrasonic pulse velocity

Experimental investigations were carried out for assessing the influence of thermal loadings on the physical and mechanical properties of plain concrete after fire exposure. Cylindrical specimens were subjected to thermal loading at different temperatures inside of a muffle fur...


Autor(es): Ricardo Alfredo Cruz.   Eduardo Zapata.   Julian Orlando Herrera.   Luz Amparo Quintero Ortiz.  



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2014

Weibull statistical analysis of splitting tensile strength of concretes containing class F fly ash, micro/nano-SiO2

Despite the importance of the Weibull modulus in reliability analysis of brittle materials, the majority of the studies are focused on plain concrete; the data being especially scarce for nano-SiO2-concrete. Therefore, this paper investigates the concrete tensile stren...


Autor(es): Eduardo Zapata.   Genock Portela.   Oscar Marcelo Suárez.  



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2013

Rheological performance and compressive strength of superplasticized cementitious mixtures with micro/nano-SiO2 additions

This study aims to assess the effects of micro and nano-SiO2 under various dosages of carboxylated-polyether-copolymer-type superplasticizer on the rheological properties of grouts in the fresh state. In the hardened state, compressive tests and scanning electron microscopy w...


Autor(es): Eduardo Zapata.   Genock Portela.   Oscar Marcelo Suárez.   Olveen Carraquillo.  



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Eventos

2019

5th International Meeting for Researchers in Materials and Plasma Technology (5th IMRMPT)

Iron slag as fine aggregate replacement and nanosilica particles in selfcompacting concrete mixtures


Autor(es): Maria Fernanda Mantilla.   Jhon Alejandro Villamizar.   Sergio Ruiz.   Eduardo Zapata.  



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2016

Ingenio 2016, Conferencia Internacional de Ingeniería

Ecuaciones de módulo de elasticidad en concreto sin refuerzo deducidas desde ensayos no destructivos: impact echo y velocidad de pulso ultrasónico


Autor(es): Eduardo Zapata.   Juan Camilo Garcia.   Gina Marcela Garrido.  



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2016

8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016

Tensile behavior by weibull analysis in Binary, Ternary, and Quaternary concretes designed with micro and nano-silica additions


Autor(es): Eduardo Zapata.  



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2016

6th Amazon & Pacific Green Materials Congress and Sustainable Construction Materials Lat-rilem Conference

Desempeño mecánico y en estado fresco en mezclas de concreto estructural con agregado de concreto reciclado


Autor(es): Eduardo Zapata.   German Garcia.  



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2015

XX Simposio Colombiano sobre Ingeniería de Pavimentos

Concreto Micro y Nanjo-adicionados de alta resistencia y alto módulo de Weibull con aplicación potencial en infraestructura víal


Autor(es): Eduardo Zapata.  



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2015

VIII CIM, Congreso Internacional de Materiales

Influencia de las fibras naturales sobre las propiedades mecánicas del concreto - revisión del tema


Autor(es): Eduardo Zapata.   Ricardo Alfredo Cruz.  



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2011

13th International Congress on the Chemistry of Cement

Rheological behavior between Portland cement type I and commercial silica fume


Autor(es): Eduardo Zapata.  



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