| http://www.w3.org/ns/prov#value | - It should be hard, durable, clean and be free from organic matter etc. and should not contain any appreciable amount of clay balls and harmful impurities such as alkalis, salts, coal, decayed vegetation etc.Read more >> What precautions should be taken while mixing/laying cement concrete mix to the required site? - On 03/27/2012 - 9986 View(s) - 7 Comment(s)For general work the different materials
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