Nanchang concrete production qualification application steps

Business license-tax registration certificate-organization code certificate-environmental assessment-measurement certification-qualification certificate of construction enterprise-qualification of concrete special laboratory.

The mixing station staff shall inform the mixing station tester in advance of the label, quantity, construction site and construction method of the concrete to be mixed that day, and apply for the construction mix ratio. The materials used in the mixing station must pass all inspections. Before the opening of the mixing station, the tester takes sand and gravel to determine the water content, converts the theoretical concrete mixture ratio into the construction mixture ratio, fills in the notice of construction ingredients, and the technical director reviews it. In general, the water content is sampled twice per shift, and it is sampled at any time in rainy days, and the concrete construction mixture ratio is adjusted in time according to the measurement results.