Can using manufactured sand for making solid concrete block?

You need to be more specific with the question: What sort of solid concrete blocks, source of manufactured sand, etc. Manufactured sand is a loose description covering materials from 100% comparable with good natural sand, all the way to downright awful!Henan Daswell Machinery is a professional manufacturer of mining machine for almost 30 years in China. We are dedicated to supplying our customers with best service and products, our major products include:mobile hollow concrete block making machine,MP500 Planetary Concrete Mixers for sale,If you are interested in our products, please contact us freely: sales@daswell.com Raw materials: Crushed stone, sand, cement JS series concrete mixer, etc; Many type of industrial waste, like, lime, fly ash, slag, coal gangue, gravel egg laying type block machines, perlite, ect... Multiple uses, it can produce all type of standard building blocks by changing mould. 1, Multi-holes block and hollow block. 2, Ceram site heat preservation block. 3, Composite heat preservation concrete block