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Our hauler delivered a load of concrete sand in a truck that had previously hauled urea. We batched the sand in several truckloads of concrete used in the walls for a residential basement. When finishers placed the basement floor, they complained about a strong ammonia smell, and that's when we...
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I'm promoting the use of precast-concrete prison-cell modules in our state and need some backup information to help me do it. Are there any articles that can help me to explain the advantages and methods for this kind of construction?
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We want to buy a jig to float out some of the opaline shale in our sand source. The shale is reactive and we need to reduce the expansion when the sand is tested by either ASTM C 1260, "Standard Test Method for Potential Alkali Reactivity of Aggregate," or C 1293, "Standard Test Method for Concrete...
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