Quality of cement mixing plant is the key

Quality is directly related to the architectural quality is extremely durable, more HZS150 Concrete Mixing Plant for quality control of the highlights! Testing alone is not enough strength, setting time and soundness.
1, clinker: standards, calcium silicate mineral is not less than 66%, calcium oxide and silicon dioxide mass ratio is not less than 2.0. Our plant do these indicators often qualified? Often only do strength test.
2, the clinker content in cement: standards, ordinary Portland cement clinker and gypsum content should be greater than or equal to 80% and less than 95%. But now, even large clinker content in cement plant typically only 65%-70%, not to mention all over the small cement plants around the capital (in fact, can only be called grinding station, or you don't know how to make cement plant name), after understanding, small cement clinker content in General only about 50%. Small cement cement, can at best be called mixture!
3, detection methods: cement by technical supervision Bureau of supervision, inspection once a year, simply do not bound by cement production! National testing standards, will try only strength, setting time and soundness of the project, coupled with some chemical indicators, has not enough! Manipulated cement are very easy to meet these indicators!