Concrete mixer technical requirements for laboratory use

Concrete mixer Ming 1, laboratory use, including manufacturer, model, serial number, date of production, product certificates and other documents of a technical nature.

Concrete mixer 2, laboratory use outer surface should be flat and smooth, smooth start, working properly.

Controller for concrete mixers have 3, laboratory time, good electrical insulation properties.

Test room 4, concrete mixer, mix concrete colors should be consistent and meet the requirements of homogeneity of the concrete mixing time: forcing 45s; Since falling ≤ 50s;

Concrete mixer 5, laboratory use full stop 5min and start again, should be able to run properly. Overload 10% case still works.

6 ≤ 5%, concrete residue discharge time: compulsory 15s since falling ≤ 30s.