I have a lightweight mortar from Lead/Zinc tailings. The tailings had a high sulphate content that has been reduced to 0.28% water soluble sulphate and 1600ppm sulphate. If crushed, could this be used as a lightweight aggregate in concrete?
I am about to oversee a project involving the placement of RCC in an environment where the temperature remains at a constant 70 degrees fahrenheit. My question is do I need to saw cut expansion joints?
Is anyone aware of any specifications, anywhere, for maximum permitted levels of pyrite in building products and in particular fill material for use below concrete slabs in house construction?
I've been asked to confirm a design for a road job in southern India. The design is for 1 million axles for a 15 year period. Specification is for 200mm sub-base, then 250mm hydraulically bound material, topped with 60mm base hma and 40mm wearing course hma. The sub-base cbr is 8. Is this...
Can anyone explain why, when specifying , a granular sub-base material, a LL OF 20.5 is set for limestone crushed rock fines and LL of 21.5 is set for other rock types, even when the fines are non-plastic?
Can anyone help me with the recycling of asphalt baghouse fines? Has anyone attempted to turn these into lightweight aaggregates?
Thanks in anticipation.
can anyone give me some ideas on how to recycle about 100 metric tonnes of baghouse fines waste from an asphalt coating plant? is it possible to turn this material into lightweight aggregate and how?
