-
Adding water to a load of concrete may or may not be acceptable, depending on the parameters that must be met
-
The moisture condition of aggregate in concrete is very important. The absorption of the aggregate indicates the quantity of water which will be absorbed into the pore structure.
-
Apparently the topic of cylinder testing gone wrong struck a chord with TCP readers, who wrote back to share stories similar to the one in last month’s blog. Following are just two humorous examples.
-
Many things can cause rapid slump loss. Aggregate, cement chemistry, fly ash sources, and admixtures are culprits.
-
There is a widely held and incorrect belief in the concrete industry that a producer's quality control (QC) department takes away from and does not add to the bottom line.
-
Everyone in the concrete industry has received the dreaded call about low strength on a job. Typically, high water content, high air content, or low standards from the testing company is the primary cause of the problem.
-
Q: I'm a quality control manager for a mid-size ready-mix producer and am dealing with several quality issues which need resolution. I am having difficulties convincing the owner that he needs to increase funding for the quality system in order to produce more consistent concrete. How can I...
-
Program Houses Registry of Product Conformity to Standard Test Methods
-
Q: We are experiencing low compressive strength test results on some concrete we supplied to a job. We know it is due to poor testing of the cylinders. How do we convince the contractor and engineer where the issue is?
-
We are seeing more news surrounding one of the more exciting innovations in the concrete industry: roller-compacted concrete (RCC).