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Fly Ash Reduces Thermal Cracking
Thermal cracking occurs when there is excessive temperature difference within a concrete structure and the ambient temperature. This...
Water for Concrete
Of all the ingredients used to make concrete, water is the cheapest. But it is important that we pay sufficient attention to it. Water...
Handling and Storing Aggregates
Aggregates for batching of concrete are normally stored outdoors in stockpiles. Some of the factors that should be considered when...
"BEST" gradation of aggregates for concrete?
So, is there a "best" grading for aggregates for concrete? Grading of aggregates is important as it affects workability of fresh concrete....
Why do aggregates need to be well-graded
Grading of aggregates refers to its particle size distribution. It is determined by sieve analysis. If we were to use aggregates of...
Maximum size of aggregates
What's the maximum size of aggregates we can use? Generally the larger the maximum size of aggregate, the smaller is the cement...
Aggregates: Maximum Size and NOMINAL Maximum Size
What's the difference between Maximum Size of Aggregates and NOMINAL Maximum Size of Aggregates? The difference is only one word:...
What is Alkali-Aggregate Reaction (AAR)
What is AAR? How does it affect concrete quality? What can we do about it? Alkali-Aggregate Reaction or AAR in short refers to the...
Are your aggregates sound?
We may be sound but are our aggregates sound? Soundness of aggregates is defined at the ability of it to resist excessive changes in...
Deleterious Substances in Aggregates
Aggregates for concrete, if containing deleterious substances, may affect strength, workability and long term performance of concrete in...
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