Concrete Briefs . . .
Special Sale of NCMA Overstocked TEK
National Concrete Masonry Association (NCMA) is overstocked on a large number of TEK and in order to move them, they are being offered to NCMA members and State Association Alliance members at a reduced price of $0.20 each plus shipping and handling in multiples of 100 (normal member price is $0.75 each). See the November member mailing packet for the list of TEK being offered and an order form. You can also contact the NCMA Publication Department at publications@ncma.org or phone 703-713-1900 for more information.
Get Free Admission to World of Concrete and Discount on Seminars
As a co-sponsor, PCA offers free advance registration to the World of Concrete, in Las Vegas, January 23-26, 2007. You can also get a discount on the many seminars starting on January 22.
Don't miss the seminars on Top 10 Myths of Concrete Construction and How Today's Cements Affect Concrete Properties given by PCA's Michelle Wilson.
Register Online
Download Registration Form
More Information
For a complete listing of industry conferences, click here.
Portland Cement Association's FAQ Available Online Here's a Glimpse:
Q: My concrete driveway was built last year. This spring I noticed that there are areas where the broom texture has worn away and in one area the surface is rough and I can see some of the stones that I believe to be fairly deep in the concrete. What causes this and should I be concerned about the long-term durability of the driveway?
A: What you are describing may be scaling, which is a general loss of mortar from the concrete surface. This mechanism is typically caused by one of the following physical processes:
- concrete that is exposed to multiple freezing and thawing cycles when the concrete is saturated with water
- concrete that is exposed to deicing chemicals
In either case the concrete surface is disrupted by tensile forces that develop as the result of water near the surface which expands as it freezes. More.
Click here for more cement and concrete FAQs.
NAHB-Produced Programs on HGTV & DIY This Week
The NAHB Production Group produces three weekly television shows on HGTV and DIY for consumers. The following is the latest lineup:
"Rock Solid" on DIY
Episode: "Stone Patio and Walkway"
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• Oct. 19, 5:00 p.m. ET/PT
• Oct. 21, 11:30 a.m. ET/PT |
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Dean and Derek tackle three types of flagging stonework in this project in Plymouth, Mass. They create a stone patio, walkway and stepping stones for a rustic cottage.
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