Table of Contents December 2002

Airing it 24/7/365

Nondestructive Testing: Part 1

A Truck of Their Own

Gray-Water Recycling: Part 2

Lubing Your New EGR Engines

Not a Retiring Personality

Betting on the Future

Matching Concrete Colors

I have been asked to try to match the shades of concrete on a patio and pool deck. The patio was poured about a year before the pool deck. What are my best options for accomplishing this?

Figuring the Specific Surface Area

I am looking for a way to calculate the specific surface area (total surface area) of an aggregate that I am using in concrete.

More on Limestone Aggregate and Warehouse Floors: A Reader Responds

As a specialist in industrial floor-hardening products, I am responding to a couple of comments in the "Troubleshooting" column from the October 2002 issue. The comments were in reference to specifying limestone as coarse aggregates in concrete floor slabs. In the last paragraph, the column...