News and Events

DrWeiss

Concrete Producer Cites Influence of Purdue Research

Jason Weiss' internal curing research reveals small changes that result in big improvements.

More information is avilable at link.

(Photo by The Concrete Producer)

Ryan Henkensiefken

Congratulations to Ryan Henkenseifken!

We would like to congratulate Ryan Henkensiefken and his colleagues at Central Concrete Supply Co. Inc, a business unit of U.S. Concrete Inc., for the creation of the first Environment Product Declaration for concrete mixtures.

More information is avilable here.

(Photo by The Concrete Producer)

Danny

Congratulations Danny Tucker!

We would like to congratulate Danny Tucker for winning the 100m Free National Championship at the U.S. Open in 2013. In addition to swimming, Danny is an undergraduate research assistant in our group.

More information is avilable from Purdue Athletics link.

Dr. Igor

Congratulations Igor De la Varga!

We would like to congratulate Igor De la Varga for successfully defending his Doctoral thesis titled "Increased Fly Ash Volume and Internal Curing in Concrete Structures and Pavements." and completing his degree in the summer. We will also miss his wonderful wife, Karla, who did a wonderful job redesigning Professor Weiss's Website!

An abstract of Igor's work work can be accesed in the following link.

Tim Barrett

Congratulations Timothy Barrett!

We would like to congratulate Timothy Barrett for successfully defending his Masters thesis titled "Performance of Portlant Limestone Cements: Cements Designed to be More Sustainable that Include up to 15 % Limestone Addition." and completing his degree in the summer.

An abstract of the work can be accesed in the following link.

Jeff Sprio

Congratulations Jeffrey Spiro!

We would like to congratulate Jeffrey Spiro for successfully defending his Masters thesis titled "Use of Soy Methyl-Ester Prior to Cracking as a Surface Treatment Method to Minimize Chloride Penetration
of Cracked Concrete."
and completing his degree in the summer.

An abstract of the work can be accesed in the following link.

Robert Spragg

Congratulations Robert Spragg!

We would like to congratulate Robert Spragg for successfully defending his Masters thesis titled "The Rapid Assessment of Transport Properties of Cementitious Materials Using Electrical Methods." and completing his degree in the summer.

An abstract of the work can be accesed in the following link.

Internally Cured Concrete May Lead To Crack-Resistant Bridge Decks

An article about the research performed by Dr. Jason Weiss and his group at Purdue University on internal curing has been published in a recent issue of the ASCE CE magazine (www.asce.org). The article explains the concept of internal curing and highlights some of the main benefits of using internal curing in real concrete bridges and transportation structures. To read the complete article please click here.

(Photo by Carmelo Dibella/Purdue University)

Soy Beans

Soybean-Based Treatments can Enhance Concrete’s Performance and Sustainability

"Researchers at Purdue University’s Pankow Materials Laboratory, led by Dr. Jason Weiss, are investigating another potential soybean-based product application for concrete. They are working with a material that combines soy methyl esters (SME), a byproduct of soy biodiesel production, with fillers derived from waste polystyrene. It is a green product that beneficially reuses waste and contains no VOCs." For more information, please click here.
(Concrete Construction Magazine photo)

 

Concrete sealant

Soy-Based, Biodegradable Concrete Sealant

Soy Methyl Ester polystyrene blends have been developed into a repellant that greatly reduces the ability of water and other compounds to penetrate concrete and cause cracking and chipping under winter freeze/thaw conditions.

The sealant shows promise as an environmentally friendly alternative to similar products applied to concrete during road construction. For more information, please click here.
(Purdue Agriculture Magazine photo)

Improving Concrete Bridge Decks with Internal Curing

An article was recently published in Concrete Bridge Views titled "Improving Concrete Bridge Decks with Internal Curing". The article describes laboratory research that has been performed regarding internal curing.

Several recent bridge decks in the state of Indiana have been cast using lightweight aggregates to provide internal curing and ease the transition of this technology from the lab to the field. For more information, please click here.

 
 

Albert Miller

Congratulations to Albert Miller

Albert Miller set a Purdue record in the Breast Stroke at the Big Ten invitational with a time of 53.34 sec. More information is available at http://www.purduesports.com/sports/m-swim/recaps/022412aad.html.  

In addition to swimming Albert is working on a new tests method to quantify the moisture content of lightweight aggregate that is used for internal curing.

(Purdue University photo) 

 
 

Internal Curing

 

Indiana Using New Concrete to Increase Bridge Life Span

"Purdue University research is enabling Indiana to improve bridges in the state with a new "internally cured" high-performance concrete.  The Joint Transportation Research Program, a partnership between the Indiana Department of Transportation (INDOT) and Purdue, worked with Weiss and INDOT to create specifications for implementing the internally cured high-performance concrete. " More information is available in the press release article and the press release Internal Curing video.

(Purdue University photo/Andy Hancock) 

 
 
INDOT presentation Robert Spragg

Resistivity Testing with the Indiana Department of Transportation

Robert Spragg and Jason Weiss recently coordinated a training and overview session of electrical testing of concrete to INDOT personnel. This testing, which has long been used as a research tool, has gained traction as a method of concrete mixture qualification and a quality control tool. More information is available from the Joint Transportation Research Program: https://engineering.purdue.edu/JTRP/news/training-for-concrete-resistivity-testing

 
 
Purdue Civil Logo

Members of the Weiss Group Present at the 92nd Annual Meeting of the Transportation Research Board

In January 2013, Robert Spragg, Paul Imbrock, Wesley Jones, and Jason Weiss traveled to Washington D.C. in the 92nd Annual Meeting of the Transportation Research Board. Topics presented ranged from Internal Curing to Electrical Properties of Concrete. A copy of the poster presented in collaboration with the National Institute of Standards and Technology on Electrical Resistivity can be viewed here.

 
 
unconventional_materials

Anna Maria Workshop XIII Unconventional Concrete

Mitchell House participated in the Anna Maria Workshop XIII Unconventional Concrete presenting non-conventional materials for use in internal curing, held in Florida. The potential for using pelletized slag or expanded slag aggregates for internal curing of concrete was discussed.

 
 
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Thermal Methods for Prediction of Properties of Cementitious Systems at the ASTM

Tim Barrett participated in the Workshop on Thermal Methods for Prediction of Properties of Cementitious Systems at the ASTM Committee Week in December, presenting a collaborative work between the Purdue Concrete Materials Group and Dale Bentz at NIST which focused on the relationship of compressive strength to heat release in mortars.  The work demonstrated the strong relationship between the filling of porosity (as measured through isothermal calorimetry) and the subsequent gain in strength.  Upon the analysis of a comprehensive data set, it was shown that a single linear relationship between heat release and strength can be established for low water-to-cement ratio mortar systems.  A full copy of the publication can be found at Dale Bentz’s home page: http://concrete.nist.gov/~bentz/Heatreleasetostrength_011912.pdf

 
 
Chiara_presentation

10th RILEM International Symposium on Brittle Matrix Composites

Chiara Villani participated in the 10th RILEM International Symposium on Brittle Matrix Composites, held in Warsaw, last October. She presented part of her research on drying of cementitious materials in presence of deicing salts. She has also received a travel grant from National Science Foundation to attend the US-Poland Multiscale Computational Modeling of Cementitious Materials, in Krakow.

 
 
IOWA_conference

Iowa Better Concrete Conference

Tim Barrett recently attended the Iowa Better Concrete Conference, where he presented on the topic of internal curing.  The presentation was a compilation of research performed by the Purdue Concrete Materials group and researchers at NIST, covering the background of internal curing, the implementation of this technology, and the potential benefits internal curing can have on concrete performance.  

 
 
AWARDS
Congratulations!

Chiara Villani has been chosen as a recipient of the William L. Dolch Graduate Scholarship for 2012.

Mitch House has been chosen as a recipient of the Matthew E Kern Scholarship for 2012.

 
 
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XXI International Materials Research Congress 2012

Igor De la Varga presented some of his work on High Volume Fly Ash Mixtures (HVFA) with Internal Curing (IC) at the XXI International Materials Research Congress held in August 2012 at Cancun (Mexico). The presentation was given in the “Concrete with Smart Additives and Supplementary Cementitious Materials” section and was focused on the benefits of using HVFA with IC in regards to strength increase, shrinkage cracking reduction and depercolation mitigation.  Timothy Barrett also presented some of his work on the restrained shrinkage performance of Portland Limestone Cements (PLC's) at the conference.

 
 
ACI_logo
Internal Curing Presentations at ACI Toronto

Carmelo Di Bella and Kambiz Raoufi will present their latest findings of their research on internal curing in a session titled, "The Economics, Performance, and Sustainability of Internally Cured Concrete," at the 2012 fall convention of the American Concrete Institute in Toronto, Canada. The presentation by Di Bella et al. will focus on measured transport properties for a full scale bridge constructed near Monroe Co. Indiana. The presentation by Raoufi et al. will describe how internal curing reduces transport and cracking which greatly delays the onset of corrosion.

 
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Golias et al. discuss Aggregate Moisture and its Influence on Internal Curing

We congratulate Mike Golias and Javier Castro for the publication of their recent article titled "The influence of the initial moisture content of lightweight aggregate on internal curing". This article was recently published in the journal of the Construction and Building Materials journal. This document describes how lightweights aggregate with varying moisture conditions can be used effectively for internally curing. This work shows how the potential for internal curing can be extended to to dry bag products for example.

 
 
AE and ASR
Pour-Ghaz et al. present a New Test for the Detection of ASR

During the recent ICAAR meeting in Austin Texas, Mohammad Pour-Ghaz presented findings of research on the use of acoustic emission as a method to detect ASR damage in concrete. This work shows that acoustic emission has the potential to detect cracking significantly before the current standard tests thereby potentially saving time during testing and mixture qualification.

 
 
REM_news
Report on the Repeatability of Rapid Electrical Test Methods

In an upcoming issue of the new ASTM journal Advances in Civil Engineering Materials, Spragg et al. will present results from a ten laboratory round robin study on the variability of two rapid tests for measuring transport of concrete (wenner and bulk resistivity). These results are critical for the development of precision and bias standards for the development of standardized tests for concrete.

 
 
SME
Soy Methyl Ester Polystyrene Blends for Use in Concrete

Congratulations to Bernie Tao, Kevin Coates, Samia Mohtar, and Alva Peled for being issued U.S. Patent Application Serial No. 12/592,336 for their work on SOY METHYL ESTER POLYSTYRENE BLENDS FOR USE IN CONCRETE.

 

 
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