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International
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What’s
New at ISCP? Industry
News Research
Notes Thesis
Abstract Upcoming
Events
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ISCP Board and Officer Nominees
Announced The
following ISCP members have been nominated to serve as Officers and Directors
of ISCP: For President: ·
·
Neeraj Buch, ·
Mark B. Snyder, American Concrete Pavement
Association-Pennsylvania Vice-President: ·
José Balbo, Secretary-Treasurer: ·
Jake Hiller, Board
of Directors: ·
Anna-Carin Brink, UWP Consulting, SOUTH ·
Juan Pablo Covarrubias, ·
Jim Grove, ·
Lev Khazanovich, ·
Erwin Kohler, Dynatest Consulting, Inc., ·
Luc Rens, ·
Jeff Roesler, ·
Peter Taylor, ·
Bo Tian, Research Institute of ·
Leif Wathne, American Concrete Pavement Association, Election ballots will be mailed to all current ISCP members
shortly after the November Board Meeting (when the Nominating Committee’s
slate of candidates will be finalized and approved). Information about each nominee (including a
brief nominee’s statement) will be posted on the ISCP website prior to the
mailing of ballots. The newly elected
officers and directors will serve 4-year terms beginning ISCP’s Annual Board and Membership
Meeting Planned for TRB
EUPAVE’s 1st Publication “Concrete Roads”
Available EUPAVE recently released its first publication,
"Concrete Roads: a Smart and Sustainable Choice". This brochure
draws on international experience to illustrate that the modern concrete road
can be a sustainable solution and that it satisfies the criteria for
sustainable construction with respect to the environment, economy and
society.
Source: Norwegian Prime Minister Gro Harlem
Bruntland – 1987 UN World Commission on Environment and Development] Concrete pavements have proven to be highly
sustainable options for use in the public infrastructure. In terms of their
raw materials, they can contain by-products, such as fly ash and/or slag
cement. At the end of their service life, concrete pavements can be crushed
and reused as recycled aggregate in subbases, new concrete mixtures, or other
applications. In addition, newer concrete materials, such as pervious
concrete, can be used in pavements to allow direct permeation of water to the
ground without runoff effects, avoiding environmental impacts such as water
collection and erosion. A paper copy of this publication can be obtained
by simple request: send an email to info@eupave.eu, stating clearly your name, company, address and
country. ACPA Announces Complete The American Concrete Pavement Association (ACPA)
has announced the complete details of its inaugural Concrete Pavement
University (CPU) program. With over 20
presentations scheduled in 8 different tracks, participants are eligible to
receive up to 7.5 Professional Development Hour (PDH) credits for their
attendance at the 1-1/2-day educational event. Complete program details are available at: http://www.pavement.com/Events_and_Programs/Events/46thAnnualMtg/Agenda_CPU.html As previously reported, the CPU is an integral
part of the ACPA’s upcoming 46th Annual Meeting “Creating Success Together”, an event that
will also include ACPA Committee and Task Force meetings, a Board of Directors/Membership
meeting, optional activities such as golfing and fishing, and the Annual
Excellence in Concrete Pavements Awards ceremony/banquet. The meetings are scheduled from November 30th
through If you would like to receive a copy of the
electronic flyer for the ACPA’s 46th Annual Meeting, please contact Bill
Davenport at bdavenport@pavement.com. MEPDG Version 1.1 is Now Available Version 1.1 of the Mechanistic-Empirical Pavement
Design Guide (ME-PDG) software is now available online for evaluation through
the following link: http://onlinepubs.trb.org/onlinepubs/archive/mepdg/home.htm Some US State Departments of Transportation have
already begun using the previous version of this software as their primary
pavement design/analysis tool.
Pavement designers are encouraged to use this new version of the
software to thoroughly evaluate its applicability and provide feedback to the
developers. The current software
version was released in September 2009 and includes significant changes and
improvements since its last release in April 2007. Some of the improvements related to
concrete pavement analysis include more accurate modeling of: ·
bonded concrete overlays, on existing asphalt or
concrete pavements, with minimum thickness as low as 38 mm (1.5 inches) ·
bonded jointed plain concrete pavements (JPCP)
over an existing JPCP ·
joint spalling ·
sealant type Several bugs were fixed, including those
associated with fatigue damage accumulation for JPCP with widened lanes and
software interface problems. Visit the
website above for more detailed information and download instructions for the
new version of the guide and software.
Concrete Pavement Workshops and
Sessions at TRB Annual Meeting Scheduled It’s
not too early to start planning for the 89th Annual Transportation
Research Board (TRB) Meeting, which will be held in Washington DC, USA from
January 10th through 14th, 2010. Hotel reservations at the conference hotels
must be done through registration and the rooms fill up quickly. To register and reserve a hotel room,
please go to the TRB Annual Meeting website. http://www.trb.org/AnnualMeeting2010/Public/AnnualMeeting2010.aspx ISCP
will hold its annual membership meeting in Washington DC, USA on Saturday,
January 9th prior to the TRB Annual Meeting. The ISCP meeting is open for all members to
attend. Also, the newly elected
officers and board of directors will be announced during the ISCP meeting,
along with the induction of new honorary members and the introduction of new
individual and corporate members. Various
concrete related workshops are offered on Sunday, January 10th as
part of the TRB Meeting on the following topics: ·
Performance-Based
Specifications in Current Concrete Practice ·
Research
and Emerging Technology in Portland Cement Concrete Pavement Construction ·
Ultrasonic
Imaging of Concrete A
brief summary of the TRB sessions being held related to concrete or concrete
pavements includes the following: ·
Advances
in Concrete Property Characterization ·
Emerging
Technologies Related to Concrete ·
Portland
Cement Concrete Pavement Construction: New Developments ·
Properties
of Concrete: Advances in Test Methods and Procedures ·
Recent
Developments in Concrete Durability ·
Pervious
Concrete in Transportation Applications ·
Science
of Cracking and Crack-Free Concrete ·
Improving
Sustainability in Concrete Construction ·
Effects
of Incorporating Supplementary Cementitious Materials (SCM) in Concrete Mix
Design An
interactive program providing details on all the sessions and workshops will
be available shortly on the TRB website.
Please visit the following links for the Annual Meeting Program. http://trb.org/AnnualMeeting2010/AM2010Program.aspx
IJPE
Accepted for Inclusion in the Science Citation Index The International Journal of Pavement Engineering
(IJPE) was recently accepted for inclusion in the Science Citation Index Expanded™. This index covers 6,650 of the world's
leading journals of science and technology. The database allows researchers
to identify articles most frequently cited or articles by a particular
author. The IJPE is published bimonthly by the Taylor and
Francis Group (UK) and is dedicated to the publication of cutting edge
research and development in pavement-related structures and facilities,
including advanced analytical and computational techniques, pavement
mechanics, laboratory techniques, non-destructive testing, innovative design
approaches and their implementation, construction, performance, maintenance
and rehabilitation techniques. All
published research articles undergo rigorous peer review, based on initial
editor screening and anonymous refereeing by independent expert
referees. ISCP has designated the International Journal of
Pavement Engineering as the journal of the ISCP. Members are strongly encouraged to submit
their technical manuscripts to IJPE for peer review and possible publication. For more information about the journal or to
submit papers online to the journal please see the following website. http://www.tandf.co.uk/journals/titles/10298436.asp
OPTIMIZATION
OF MIXTURE PROPORTIONS FOR CONCRETE PAVEMENTS - INFLUENCE OF SUPPLEMENTARY
CEMENTITIOUS MATERIALS, PASTE CONTENT AND AGGREGATE GRADATION By:
Adam Rudy, Ph.D Advisor:
Professor Jan Olek, Ph.D., P.E., Professor The
main purpose of this research was to evaluate the influence of the type and
the amount of supplementary cementitious materials, paste content and
aggregate gradation on the results of statistical optimization of mixture
proportions for concrete pavements. The research program was divided into
three main PHASES. In
PHASE I, the influence of the amount and type of supplementary cementitious
materials (as well as the paste content) on selection of optimum proportions
for concrete pavement mixtures was studied. The Response Surface Methodology
(RSM) was utilized to design test matrices of concrete mixtures consisting of
three binder systems: the fly ash system, the GGBFS system and the fly ash
plus GGBFS system. For each binder system, the paste content varied from 21
to 25% by mixture volume. The optimum composition of concrete mixtures was
found to be 29% of fly ash and 22% of paste for the fly ash system, 37% of
GGBFS and 23% of paste for the GGBFS system, and 15% of fly ash, 27% of GGBFS
and 22% of paste for the ternary system. In
PHASE II, three concrete mixtures (each representing near optimum composition
of variables studied in PHASE I) were selected and produced with six
different aggregate gradations. These aggregate gradations varied with
respect to coarseness (CF) and workability (WF) factors (as defined by
Shilstone’s chart), packing density and maximum aggregate size. The results
revealed that the best performance was obtained for mixtures with CF of about
67 and WF of about 40. In addition, the paste-aggregate void saturation ratio
(k”), which relates paste content to aggregate packing density, was found to
be important in controlling scaling and drying shrinkage of concrete mixtures
produced in PHASE II. The
focus of PHASE III of the study was on numerical modeling to determine the
optimum combination of (k”) and aggregate packing density (Φ) with
respect to concrete performance. The results revealed that the most desirable
concrete mixtures were produced with a (k”) value ranging from 0.925 to 1.000
and with packing density in the range from 0.755 to 0.786. Finally,
selected concrete mixtures produced in Phase III were evaluated with respect
to their cracking potential. The mixtures selected for the cracking potential
study were those which showed elevated level of drying shrinkage and were
characterized by relatively high k” values and poor aggregate packing
density. The cracking potential of these mixtures was evaluated using the
modified AASHTO ring test procedure, which involved demolding of specimens
immediately after the concrete reached the final setting time. The final
setting time was determined using the Time Domain Reflectometry (TDR) method.
TREMTI 3: 3rd International
Symposium on Stabilization and Recycling http://www.eupave.eu/documents/events/tremti-2009.xml
http://www.concretepavements.org
ACPA’s 46th Annual
Meeting November
30- http://www.pavement.com/Events_and_Programs/Events/46thAnnualMtg/index.html
http://www.concretepavements.org International Rilem Conference on
Progress of Recycling in the Built Environment http://www.recycle2009.org/index.html
http://www.concretepavements.org 89th Transportation Research Board
Annual Meeting 13th International Winter Road
Congress http://www.aipcrquebec2010.org 9th Annual International Conference
Addressing: Sustainable Construction Materials and Technology in Asphalt,
Pavement Engineering and Highways Maintenance http://www.ljmu.ac.uk/BLT/100174.htm 11th Heavy Vehicle Transport
Technology Symposia (HVTT11) http://www.hvttconference.com/ Thirty-Second International
Conference on Cement Microscopy March
28 – http://www.cemmicro.org/icma/conference.html 1st International Conference on
Pavement Preservation http://www.pavementpreservation.org/icpp/ 2010 FAA Worldwide Airport
Technology Transfer Conference http://www.airtech.tc.faa.gov/att2010/
http://www.trb.org/Conferences/2010/Nanotech 7th International Symposium on
Cement & Concrete 7th International Conference on
Fracture Mechanics of Concrete and Concrete Structures GeoShanghai 2010 http://www.geoshanghai2010.org/index.asp Sustainable Construction Materials
& Technologies http://www.uwm.edu/Dept/CBU//ancona.html
http://www.fhwa.dot.gov/pavement/concrete/2010acptpconf.cfm Maintenance Superintendants
Associations (
http://www.citg.tudelft.nl/live/pagina.jsp?id=46c8bc2d-df2b-44c7-8cda-fc456c6c9648&lang=en
Organized
by EUPAVE http://www.2010concreteroads.org/ 10th International Conference on
Low-Volume Roads http://www.trb.org/conferences/2011/10LVR 24th http://www.piarc.org/en/congresses-seminars/road-congresses.htm
If
you wish to submit an announcement and/or link for an upcoming conference,
meeting, or call for papers for the next ISCP e-newsletter, please contact us
at newsletter@concretepavements.org. The
ISCP E-Newsletter is produced by Editor-in-Chief, Amanda Bordelon, Associate
Editor, Dr. Jake Hiller, and Assistant Editors: Dr. Cristian Gaedicke, Corey
Zollinger, and Nancy Whiting.
Suggestions for future newsletters are welcomed at newsletter@concretepavements.org.
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