March 2017

Concrete Contractor March 2017
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When contractors create 3D digital BIM images of their projects they can use them to estimate, plan, do layout work, design the forming system needed, manage, and cost account.
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Planning and Management Software for Concrete Contractors

Concrete Polishing Pads
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The Bonds in Diamond Grinding and Polishing Tools
Surface delaminations are separations of the top surface from the underlying concrete.
Expert Columns
How to Avoid the Delamination of Steel-troweled Floors
Surface delaminations are separations of the top surface from the underlying concrete.
Expert Columns
How to Avoid the Delamination of Steel-troweled Floors
The black and white banded design creates a dramatic grand entrance to the casino.
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Elegant Concrete Design Greets Patrons at the Hollywood Park Casino
More In This Issue
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Polished Concrete Maintenance: A Trip Through the Past and A Look at the Future
What is the next generation of maintenance products for polished concrete floors and where can contractors find them?
March 14, 2017
Plant Maintenance
Concrete Repair Keeps Customer in the Cold
Repairing an entrance threshold to a cold storage facility doesn’t have to be a disruptive experience.
March 14, 2017
The damaged threshold area has been removed to allow for a permanent repair.
Expert Columns
Concrete Slump Should Not Be Specified
The concrete producer and contractor should determine slump requirements.
March 14, 2017
Table 1
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Concrete Contractors Should Use the New (and Better) I-9 Form
Effective January 22, all US employers must be using the new version of Form I-9.
March 14, 2017
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Concrete Durability
Can we design and build structures we know will last 50 years, 75 years or 100 years?
March 14, 2017
Mix Design
When Specifications Require Long Minimum Lifespans
Can we design and build structures we know will last a hundred years?
March 14, 2017
As the cost of building structures increases owners such as Department of Transportations’ want them to last longer so they include language in specifications requiring lifespans as much as 100 years. Construction costs more but they hope that maintenance over the years will be less.
Expert Columns
The How's and Why's of Concrete Curing
Discover ways concrete petrographers evaluate how well (or not) curing operations are done in concrete construction.
March 2, 2017
Photograph of polished surface from a concrete core removed from a poorly cured slab on ground showing layer of dark paste at the top of the core. Scale in millimeters. The loss of material at the top is due to poor hydration.
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