CPU 1 Construction and Jointing Issues Part B ACPA Annual Meeting - - PowerPoint PPT Presentation

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CPU 1 Construction and Jointing Issues Part B ACPA Annual Meeting - November 29, 2018 BLOW-UPS: The Enigma of the Concrete Paving Industry Kevin W. McMullen, P.E. President Wisconsin Concrete Pavement Association ACPA Annual Meeting -

SLIDE 1

CPU 1 – Construction and Jointing Issues Part B

ACPA Annual Meeting - November 29, 2018

SLIDE 2

BLOW-UPS: The Enigma of the Concrete Paving Industry

ACPA Annual Meeting - November 29, 2018

Kevin W. McMullen, P.E. President Wisconsin Concrete Pavement Association

SLIDE 3

Sometimes they can be extreme

ACPA Annual Meeting - November 29, 2018

SLIDE 4

Most of the time they are very simple

ACPA Annual Meeting - November 29, 2018

SLIDE 5

Definition: Types of Blow Ups

Crushing Vaulting/Buckling

JOINTED PLAIN CONCRETE PAVEMENTS

SLIDE 6

Definition: Types of Blow Ups CRCP

CONTINUOUSLY REINFORCED CONCRETE PAVEMENTS

SLIDE 7

How Often Do They Occur In Wisconsin?

ACPA Annual Meeting - November 29, 2018

SLIDE 8

2015

ACPA Annual Meeting - November 29, 2018

17 Locations Statewide

SLIDE 9

2016

ACPA Annual Meeting - November 29, 2018

39 Locations Statewide

SLIDE 10

2017

ACPA Annual Meeting - November 29, 2018

26 Locations Statewide

SLIDE 11

2018

ACPA Annual Meeting - November 29, 2018

74 Locations Statewide

SLIDE 12

Despite, what was just shown

Blow-ups are not common
Requires both high temperature (> 90 F)
Requires high moisture
Typically occurs in mid to late afternoon
Typically occurs in May/June within a week after rain
Tied concrete shoulders may reduce blow-up

ACPA Annual Meeting - November 29, 2018

SLIDE 13

Despite, what was just shown

COMMON EXPLANATION - Incompressibles are

presumably almost always involved—but not always….

Occurring early in life, 4-8 years, is typically an initial

construction issue.

Ocurring late in life, greater than 20 years, is typically a

pavement condition issue

ACPA Annual Meeting - November 29, 2018

SLIDE 14

Remember this photo?

ACPA Annual Meeting - November 29, 2018

Damage to the joint has

ccurred prior

to the blowup

SLIDE 15

How is WCPA Working with WisDOT?

Encouraging more proactive pavement

preservation/maintenance (fix the damaged pavement)

Implementing use of concrete/zero maintenance concrete

shoulders on all interstate/freeway projects

MAY/JUNE of each year WCPA works with WisDOT to

determine the key time for blowups to occur:

– WisDOT puts county maintenance crews on alert/call – WisDOT issues press release

ACPA Annual Meeting - November 29, 2018

SLIDE 16

How is WCPA Working with WisDOT?

Annual review of all locations.
New Wisconsin Highway Research Program project
Focus on pavement condition prior to blow up and amount of pavement

impacted

Reaction and temporary repair efforts
Assuring permanent repair
Methods of permanent repair

– Cast in place – Precast – Maintenance contract concept

ACPA Annual Meeting - November 29, 2018

SLIDE 17

QUESTIONS?

ACPA Annual Meeting - November 29, 2018

Kevin W. McMullen, P.E. President Wisconsin Concrete Pavement Association 4001 Nakoosa Trail, Suite 101 Madison, WI 53714 Email: kmcmullen@wisconcrete.org Phone: (608)240-1020 Mobil: (608)209-0878