What Exactly is Green Concrete
It shouldn’t cost significantly more to develop products that use less material or...
Preventing Dust on Concrete
Dusting of slabs has several causes but always results when a layer of weak paste sits at concrete’s surface.
Why are ASTM standards important and why should concrete producers pay attention...
Aggregate Gradation Matters
How we buy and sell aggregate is quite different, and it can lead to trouble. Most specifications require coarse and fine aggregate to conform to the requirements, including the gradation, of ASTM C33.
Low Concrete Compressive Strength and Cores
ACI 301 gives direction to what is to be done in the event compressive strength results have fallen below the specified strength.
Mix Designs and Polished Concrete
Concrete that will be ground and polished benefits from having a larger coarse...
Specification for Ready-mix Concrete
The purchaser is required to inform the ready-mix producer of the specification of the concrete mix. This should be a normal part of doing business.
Understanding Limestone in Cement
My cement supplier is adding limestone to their cement. Is there anything to worry about and will I have to reduce the fly ash content?
Dealing with Cement Shortages
Lots of things can disrupt the supply of cement but there are some things a...
Onsite Additions for Concrete
Take several precautions before making any concrete, starting with a trial batch under site conditions.