Use of Waste Foundry Sand in concrete
Use of Waste Foundry Sand in concrete
(OP)
Looking for someone who may have some knowledge using foundry sand in concrete or asphalt. Looking for the good and bad using the product.
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Use of Waste Foundry Sand in concrete
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Use of Waste Foundry Sand in concreteUse of Waste Foundry Sand in concrete(OP)
Looking for someone who may have some knowledge using foundry sand in concrete or asphalt. Looking for the good and bad using the product.
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RE: Use of Waste Foundry Sand in concrete
Be careful when using it as filler or fine aggregate in asphaltic concrete mixes. In sufficient quantity, it can still react and cause some expansion. At the least it might result in "bulking" of the asphalt which will allow more water permeance and subsequent failure.
RE: Use of Waste Foundry Sand in concrete
RE: Use of Waste Foundry Sand in concrete
Before using anything out of the ordinary, I would check with both the Portland Cement Association (PCA) and the American Concrete Institute (ACI).
RE: Use of Waste Foundry Sand in concrete
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RE: Use of Waste Foundry Sand in concrete
From what I gather, foundry sand commonly contains 5% to 12% fines (by dry weight). This is too dirty for concrete applications. The gradation characteristics may, however, be suitable for a blend sand in an ACP applications. The literature that I came across indicates that this is an acceptable application with a caveat that a stripping test should be considered.
Try this link:
http://www.tfhrc.gov/hnr20/recycle/waste/fs1.htm
RE: Use of Waste Foundry Sand in concrete
Does anyone have information on using the crushed concrete as aggregate for new concrete?
RE: Use of Waste Foundry Sand in concrete
RE: Use of Waste Foundry Sand in concrete
CEMENT is a fine powder ground from blast-furnace clinker (slag) of hydraulic calcium silicates.
CONCRETE is the product of an irreversable chemical reaction involving in correct proportions water, sand, aggregate and cement.
Cement is an ingrediant in concrete.
There is no such thing as a CEMENT contractor! They are concrete contractors, concrete construction etc. My material science prof. is rolling over in his grave people!
So, crushed CONCRETE can be used as an aggregate for base course. I'm not so sure if it can be used as an aggregate for concrete. CEMENT is already crushed by definition.
I feel better already! <G>
RE: Use of Waste Foundry Sand in concrete