UNDERSTANDING PYRRHOTITE IN CONCRETE
by James Baty, Gary Ehrlich, Jamie Farny, Don Penepent, and Dennis Purinton Concrete, the most widely used construction material in the world, is a complex matrix of materials that transforms into a reliable structural product. With so many variables—different ingredients, different performance requirements, varying exposures—specifiers are faced with many choices when designing durable concrete mixtures […]
Out of Plumb May Not Mean Damaged and Unsafe
As published in Concrete Contractor Magazine. Question: The foundation for my new home has one wall showing two vertical cracks and the top of the wall is not even with the base of the wall. I’m concerned the backfilling has pushed the wall in and the building inspector wants an engineer to certify the wall […]
